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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 14:16:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 14:16:11 -0700
commit46b51ea2099fa2082342e52b8284aa828429b80b (patch)
tree0a0d7bfe1aff036c86a2e7beacbd91398008bfb6
parent1fdb24e969110fafea36d3b393bea438f702c87f (diff)
parenta6029e1f75bb484c1f5bc68b6a8572e4024795bc (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (83 commits) mmc: fix compile error when CONFIG_BLOCK is not enabled mmc: core: Cleanup eMMC4.5 conditionals mmc: omap_hsmmc: if multiblock reads are broken, disable them mmc: core: add workaround for controllers with broken multiblock reads mmc: core: Prevent too long response times for suspend mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00 mmc: sd: Handle SD3.0 cards not supporting UHS-I bus speed mode mmc: core: support HPI send command mmc: core: Add cache control for eMMC4.5 device mmc: core: Modify the timeout value for writing power class mmc: core: new discard feature support at eMMC v4.5 mmc: core: mmc sanitize feature support for v4.5 mmc: dw_mmc: modify DATA register offset mmc: sdhci-pci: add flag for devices that can support runtime PM mmc: omap_hsmmc: ensure pbias configuration is always done mmc: core: Add Power Off Notify Feature eMMC 4.5 mmc: sdhci-s3c: fix potential NULL dereference mmc: replace printk with appropriate display macro mmc: core: Add default timeout value for CMD6 mmc: sdhci-pci: add runtime pm support ...
-rw-r--r--Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt27
-rw-r--r--Documentation/fault-injection/fault-injection.txt8
-rw-r--r--arch/arm/mach-at91/at91sam9260_devices.c2
-rw-r--r--arch/arm/mach-msm/devices-msm7x00.c24
-rw-r--r--arch/arm/mach-msm/devices-qsd8x50.c24
-rw-r--r--arch/arm/mach-msm/include/mach/mmc.h9
-rw-r--r--arch/arm/mach-shmobile/board-ag5evm.c6
-rw-r--r--arch/arm/mach-shmobile/board-mackerel.c6
-rw-r--r--arch/arm/plat-omap/include/plat/mmc.h19
-rw-r--r--drivers/mmc/card/block.c310
-rw-r--r--drivers/mmc/card/mmc_test.c65
-rw-r--r--drivers/mmc/card/queue.c8
-rw-r--r--drivers/mmc/card/sdio_uart.c10
-rw-r--r--drivers/mmc/core/bus.c6
-rw-r--r--drivers/mmc/core/core.c426
-rw-r--r--drivers/mmc/core/core.h1
-rw-r--r--drivers/mmc/core/debugfs.c28
-rw-r--r--drivers/mmc/core/host.c11
-rw-r--r--drivers/mmc/core/mmc.c287
-rw-r--r--drivers/mmc/core/mmc_ops.c39
-rw-r--r--drivers/mmc/core/mmc_ops.h1
-rw-r--r--drivers/mmc/core/quirks.c11
-rw-r--r--drivers/mmc/core/sd.c49
-rw-r--r--drivers/mmc/core/sd_ops.c8
-rw-r--r--drivers/mmc/core/sdio.c11
-rw-r--r--drivers/mmc/core/sdio_bus.c2
-rw-r--r--drivers/mmc/core/sdio_cis.c4
-rw-r--r--drivers/mmc/core/sdio_irq.c6
-rw-r--r--drivers/mmc/core/sdio_ops.c9
-rw-r--r--drivers/mmc/host/Kconfig16
-rw-r--r--drivers/mmc/host/at91_mci.c6
-rw-r--r--drivers/mmc/host/atmel-mci-regs.h220
-rw-r--r--drivers/mmc/host/atmel-mci.c823
-rw-r--r--drivers/mmc/host/au1xmmc.c10
-rw-r--r--drivers/mmc/host/dw_mmc.c104
-rw-r--r--drivers/mmc/host/dw_mmc.h15
-rw-r--r--drivers/mmc/host/imxmmc.c2
-rw-r--r--drivers/mmc/host/mmc_spi.c1
-rw-r--r--drivers/mmc/host/mmci.c4
-rw-r--r--drivers/mmc/host/msm_sdcc.c86
-rw-r--r--drivers/mmc/host/msm_sdcc.h6
-rw-r--r--drivers/mmc/host/mvsdio.c14
-rw-r--r--drivers/mmc/host/mxcmmc.c2
-rw-r--r--drivers/mmc/host/mxs-mmc.c1
-rw-r--r--drivers/mmc/host/omap_hsmmc.c32
-rw-r--r--drivers/mmc/host/pxamci.c2
-rw-r--r--drivers/mmc/host/s3cmci.c4
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c80
-rw-r--r--drivers/mmc/host/sdhci-of-esdhc.c19
-rw-r--r--drivers/mmc/host/sdhci-of-hlwd.c1
-rw-r--r--drivers/mmc/host/sdhci-pci.c268
-rw-r--r--drivers/mmc/host/sdhci-pltfm.c1
-rw-r--r--drivers/mmc/host/sdhci-pxav2.c5
-rw-r--r--drivers/mmc/host/sdhci-pxav3.c1
-rw-r--r--drivers/mmc/host/sdhci-s3c.c34
-rw-r--r--drivers/mmc/host/sdhci-spear.c3
-rw-r--r--drivers/mmc/host/sdhci-tegra.c55
-rw-r--r--drivers/mmc/host/sdhci.c358
-rw-r--r--drivers/mmc/host/sdhci.h7
-rw-r--r--drivers/mmc/host/sdricoh_cs.c1
-rw-r--r--drivers/mmc/host/sh_mmcif.c21
-rw-r--r--drivers/mmc/host/sh_mobile_sdhi.c99
-rw-r--r--drivers/mmc/host/tifm_sd.c19
-rw-r--r--drivers/mmc/host/tmio_mmc.c4
-rw-r--r--drivers/mmc/host/tmio_mmc.h7
-rw-r--r--drivers/mmc/host/tmio_mmc_pio.c151
-rw-r--r--drivers/mmc/host/via-sdmmc.c3
-rw-r--r--drivers/mmc/host/wbsd.c22
-rw-r--r--include/linux/atmel-mci.h4
-rw-r--r--include/linux/atmel_pdc.h2
-rw-r--r--include/linux/mmc/card.h58
-rw-r--r--include/linux/mmc/core.h9
-rw-r--r--include/linux/mmc/dw_mmc.h4
-rw-r--r--include/linux/mmc/host.h29
-rw-r--r--include/linux/mmc/mmc.h38
-rw-r--r--include/linux/mmc/sdhci.h8
-rw-r--r--include/linux/mmc/sdio.h2
-rw-r--r--include/linux/mmc/sh_mmcif.h4
-rw-r--r--include/linux/mmc/sh_mobile_sdhi.h4
-rw-r--r--lib/Kconfig.debug11
-rw-r--r--lib/fault-inject.c5
81 files changed, 3093 insertions, 1009 deletions
diff --git a/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt
new file mode 100644
index 000000000000..7e51154679a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt
@@ -0,0 +1,27 @@
+* NVIDIA Tegra Secure Digital Host Controller
+
+This controller on Tegra family SoCs provides an interface for MMC, SD,
+and SDIO types of memory cards.
+
+Required properties:
+- compatible : Should be "nvidia,<chip>-sdhci"
+- reg : Should contain SD/MMC registers location and length
+- interrupts : Should contain SD/MMC interrupt
+
+Optional properties:
+- cd-gpios : Specify GPIOs for card detection
+- wp-gpios : Specify GPIOs for write protection
+- power-gpios : Specify GPIOs for power control
+- support-8bit : Boolean, indicates if 8-bit mode should be used.
+
+Example:
+
+sdhci@c8000200 {
+ compatible = "nvidia,tegra20-sdhci";
+ reg = <0xc8000200 0x200>;
+ interrupts = <47>;
+ cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+ wp-gpios = <&gpio 57 0>; /* gpio PH1 */
+ power-gpios = <&gpio 155 0>; /* gpio PT3 */
+ support-8bit;
+};
diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt
index 82a5d250d75e..ba4be8b77093 100644
--- a/Documentation/fault-injection/fault-injection.txt
+++ b/Documentation/fault-injection/fault-injection.txt
@@ -21,6 +21,11 @@ o fail_make_request
/sys/block/<device>/make-it-fail or
/sys/block/<device>/<partition>/make-it-fail. (generic_make_request())
+o fail_mmc_request
+
+ injects MMC data errors on devices permitted by setting
+ debugfs entries under /sys/kernel/debug/mmc0/fail_mmc_request
+
Configure fault-injection capabilities behavior
-----------------------------------------------
@@ -115,7 +120,8 @@ use the boot option:
failslab=
fail_page_alloc=
- fail_make_request=<interval>,<probability>,<space>,<times>
+ fail_make_request=
+ mmc_core.fail_request=<interval>,<probability>,<space>,<times>
How to add new fault injection capability
-----------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index a53b3de9daa2..3c2b580b9d75 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -319,7 +319,7 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
if (!data)
return;
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (data->slot[i].bus_width) {
/* input/irq */
if (data->slot[i].detect_pin) {
diff --git a/arch/arm/mach-msm/devices-msm7x00.c b/arch/arm/mach-msm/devices-msm7x00.c
index c4f5e26feb4d..993780f490ad 100644
--- a/arch/arm/mach-msm/devices-msm7x00.c
+++ b/arch/arm/mach-msm/devices-msm7x00.c
@@ -176,12 +176,6 @@ static struct resource resources_sdc1[] = {
.name = "cmd_irq",
},
{
- .start = INT_SDC1_1,
- .end = INT_SDC1_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
- {
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
},
@@ -204,12 +198,6 @@ static struct resource resources_sdc2[] = {
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
- {
- .start = INT_SDC2_1,
- .end = INT_SDC2_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
@@ -233,12 +221,6 @@ static struct resource resources_sdc3[] = {
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
- {
- .start = INT_SDC3_1,
- .end = INT_SDC3_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
@@ -262,12 +244,6 @@ static struct resource resources_sdc4[] = {
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
- {
- .start = INT_SDC4_1,
- .end = INT_SDC4_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
diff --git a/arch/arm/mach-msm/devices-qsd8x50.c b/arch/arm/mach-msm/devices-qsd8x50.c
index 12d8deb78d9c..131633b12a34 100644
--- a/arch/arm/mach-msm/devices-qsd8x50.c
+++ b/arch/arm/mach-msm/devices-qsd8x50.c
@@ -140,12 +140,6 @@ static struct resource resources_sdc1[] = {
.name = "cmd_irq",
},
{
- .start = INT_SDC1_1,
- .end = INT_SDC1_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
- {
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
},
@@ -168,12 +162,6 @@ static struct resource resources_sdc2[] = {
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
- {
- .start = INT_SDC2_1,
- .end = INT_SDC2_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
@@ -197,12 +185,6 @@ static struct resource resources_sdc3[] = {
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
- {
- .start = INT_SDC3_1,
- .end = INT_SDC3_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
@@ -226,12 +208,6 @@ static struct resource resources_sdc4[] = {
.flags = IORESOURCE_IRQ,
.name = "cmd_irq",
},
- {
- .start = INT_SDC4_1,
- .end = INT_SDC4_1,
- .flags = IORESOURCE_IRQ,
- .name = "pio_irq",
- },
{
.flags = IORESOURCE_IRQ | IORESOURCE_DISABLED,
.name = "status_irq"
diff --git a/arch/arm/mach-msm/include/mach/mmc.h b/arch/arm/mach-msm/include/mach/mmc.h
index 5631b51cec46..ffcd9e3a6a7e 100644
--- a/arch/arm/mach-msm/include/mach/mmc.h
+++ b/arch/arm/mach-msm/include/mach/mmc.h
@@ -8,13 +8,6 @@
#include <linux/mmc/card.h>
#include <linux/mmc/sdio_func.h>
-struct embedded_sdio_data {
- struct sdio_cis cis;
- struct sdio_cccr cccr;
- struct sdio_embedded_func *funcs;
- int num_funcs;
-};
-
struct msm_mmc_gpio {
unsigned no;
const char *name;
@@ -29,9 +22,9 @@ struct msm_mmc_platform_data {
unsigned int ocr_mask; /* available voltages */
u32 (*translate_vdd)(struct device *, unsigned int);
unsigned int (*status)(struct device *);
- struct embedded_sdio_data *embedded_sdio;
int (*register_status_notify)(void (*callback)(int card_present, void *dev_id), void *dev_id);
struct msm_mmc_gpio_data *gpio_data;
+ void (*init_card)(struct mmc_card *card);
};
#endif
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index 5fde49da399a..475342bcc95c 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -355,14 +355,17 @@ static struct resource sdhi0_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
+ .name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
.start = gic_spi(83),
.flags = IORESOURCE_IRQ,
},
[2] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDCARD,
.start = gic_spi(84),
.flags = IORESOURCE_IRQ,
},
[3] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDIO,
.start = gic_spi(85),
.flags = IORESOURCE_IRQ,
},
@@ -398,14 +401,17 @@ static struct resource sdhi1_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
+ .name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
.start = gic_spi(87),
.flags = IORESOURCE_IRQ,
},
[2] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDCARD,
.start = gic_spi(88),
.flags = IORESOURCE_IRQ,
},
[3] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDIO,
.start = gic_spi(89),
.flags = IORESOURCE_IRQ,
},
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 7d073c121941..4de92dc570b0 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -1072,14 +1072,17 @@ static struct resource sdhi1_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
+ .name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
.start = evt2irq(0x0e80), /* SDHI1_SDHI1I0 */
.flags = IORESOURCE_IRQ,
},
[2] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDCARD,
.start = evt2irq(0x0ea0), /* SDHI1_SDHI1I1 */
.flags = IORESOURCE_IRQ,
},
[3] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDIO,
.start = evt2irq(0x0ec0), /* SDHI1_SDHI1I2 */
.flags = IORESOURCE_IRQ,
},
@@ -1123,14 +1126,17 @@ static struct resource sdhi2_resources[] = {
.flags = IORESOURCE_MEM,
},
[1] = {
+ .name = SH_MOBILE_SDHI_IRQ_CARD_DETECT,
.start = evt2irq(0x1200), /* SDHI2_SDHI2I0 */
.flags = IORESOURCE_IRQ,
},
[2] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDCARD,
.start = evt2irq(0x1220), /* SDHI2_SDHI2I1 */
.flags = IORESOURCE_IRQ,
},
[3] = {
+ .name = SH_MOBILE_SDHI_IRQ_SDIO,
.start = evt2irq(0x1240), /* SDHI2_SDHI2I2 */
.flags = IORESOURCE_IRQ,
},
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
index c7b874186c27..94cf70afb236 100644
--- a/arch/arm/plat-omap/include/plat/mmc.h
+++ b/arch/arm/plat-omap/include/plat/mmc.h
@@ -31,7 +31,24 @@
#define OMAP_MMC_MAX_SLOTS 2
-#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(1)
+/*
+ * struct omap_mmc_dev_attr.flags possibilities
+ *
+ * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
+ * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
+ * should be set if this is the case. See for example Section 22.5.3
+ * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
+ * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
+ *
+ * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
+ * don't work correctly on some MMC controller instances on some
+ * OMAP3 SoCs; this flag should be set if this is the case. See
+ * for example Advisory 2.1.1.128 "MMC: Multiple Block Read
+ * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
+ * Revision F (October 2010) (SPRZ278F).
+ */
+#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
+#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
struct omap_mmc_dev_attr {
u8 flags;
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 4c1a648d00fc..a1cb21f95302 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -94,6 +94,11 @@ struct mmc_blk_data {
unsigned int read_only;
unsigned int part_type;
unsigned int name_idx;
+ unsigned int reset_done;
+#define MMC_BLK_READ BIT(0)
+#define MMC_BLK_WRITE BIT(1)
+#define MMC_BLK_DISCARD BIT(2)
+#define MMC_BLK_SECDISCARD BIT(3)
/*
* Only set in main mmc_blk_data associated
@@ -109,11 +114,11 @@ static DEFINE_MUTEX(open_lock);
enum mmc_blk_status {
MMC_BLK_SUCCESS = 0,
MMC_BLK_PARTIAL,
- MMC_BLK_RETRY,
- MMC_BLK_RETRY_SINGLE,
- MMC_BLK_DATA_ERR,
MMC_BLK_CMD_ERR,
+ MMC_BLK_RETRY,
MMC_BLK_ABORT,
+ MMC_BLK_DATA_ERR,
+ MMC_BLK_ECC_ERR,
};
module_param(perdev_minors, int, 0444);
@@ -291,7 +296,7 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev,
struct mmc_card *card;
struct mmc_command cmd = {0};
struct mmc_data data = {0};
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct scatterlist sg;
int err;
@@ -442,19 +447,24 @@ static inline int mmc_blk_part_switch(struct mmc_card *card,
{
int ret;
struct mmc_blk_data *main_md = mmc_get_drvdata(card);
+
if (main_md->part_curr == md->part_type)
return 0;
if (mmc_card_mmc(card)) {
- card->ext_csd.part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK;
- card->ext_csd.part_config |= md->part_type;
+ u8 part_config = card->ext_csd.part_config;
+
+ part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK;
+ part_config |= md->part_type;
ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_PART_CONFIG, card->ext_csd.part_config,
+ EXT_CSD_PART_CONFIG, part_config,
card->ext_csd.part_time);
if (ret)
return ret;
-}
+
+ card->ext_csd.part_config = part_config;
+ }
main_md->part_curr = md->part_type;
return 0;
@@ -466,7 +476,7 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
u32 result;
__be32 *blocks;
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
unsigned int timeout_us;
@@ -616,7 +626,7 @@ static int mmc_blk_cmd_error(struct request *req, const char *name, int error,
* Otherwise we don't understand what happened, so abort.
*/
static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
- struct mmc_blk_request *brq)
+ struct mmc_blk_request *brq, int *ecc_err)
{
bool prev_cmd_status_valid = true;
u32 status, stop_status = 0;
@@ -641,6 +651,12 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
if (err)
return ERR_ABORT;
+ /* Flag ECC errors */
+ if ((status & R1_CARD_ECC_FAILED) ||
+ (brq->stop.resp[0] & R1_CARD_ECC_FAILED) ||
+ (brq->cmd.resp[0] & R1_CARD_ECC_FAILED))
+ *ecc_err = 1;
+
/*
* Check the current card state. If it is in some data transfer
* mode, tell it to stop (and hopefully transition back to TRAN.)
@@ -658,6 +674,8 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
*/
if (err)
return ERR_ABORT;
+ if (stop_status & R1_CARD_ECC_FAILED)
+ *ecc_err = 1;
}
/* Check for set block count errors */
@@ -670,6 +688,10 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
return mmc_blk_cmd_error(req, "r/w cmd", brq->cmd.error,
prev_cmd_status_valid, status);
+ /* Data errors */
+ if (!brq->stop.error)
+ return ERR_CONTINUE;
+
/* Now for stop errors. These aren't fatal to the transfer. */
pr_err("%s: error %d sending stop command, original cmd response %#x, card status %#x\n",
req->rq_disk->disk_name, brq->stop.error,
@@ -686,12 +708,45 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
return ERR_CONTINUE;
}
+static int mmc_blk_reset(struct mmc_blk_data *md, struct mmc_host *host,
+ int type)
+{
+ int err;
+
+ if (md->reset_done & type)
+ return -EEXIST;
+
+ md->reset_done |= type;
+ err = mmc_hw_reset(host);
+ /* Ensure we switch back to the correct partition */
+ if (err != -EOPNOTSUPP) {
+ struct mmc_blk_data *main_md = mmc_get_drvdata(host->card);
+ int part_err;
+
+ main_md->part_curr = main_md->part_type;
+ part_err = mmc_blk_part_switch(host->card, md);
+ if (part_err) {
+ /*
+ * We have failed to get back into the correct
+ * partition, so we need to abort the whole request.
+ */
+ return -ENODEV;
+ }
+ }
+ return err;
+}
+
+static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type)
+{
+ md->reset_done &= ~type;
+}
+
static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
{
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
unsigned int from, nr, arg;
- int err = 0;
+ int err = 0, type = MMC_BLK_DISCARD;
if (!mmc_can_erase(card)) {
err = -EOPNOTSUPP;
@@ -701,11 +756,13 @@ static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
from = blk_rq_pos(req);
nr = blk_rq_sectors(req);
- if (mmc_can_trim(card))
+ if (mmc_can_discard(card))
+ arg = MMC_DISCARD_ARG;
+ else if (mmc_can_trim(card))
arg = MMC_TRIM_ARG;
else
arg = MMC_ERASE_ARG;
-
+retry:
if (card->quirks & MMC_QUIRK_INAND_CMD38) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
INAND_CMD38_ARG_EXT_CSD,
@@ -718,6 +775,10 @@ static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
}
err = mmc_erase(card, from, nr, arg);
out:
+ if (err == -EIO && !mmc_blk_reset(md, card->host, type))
+ goto retry;
+ if (!err)
+ mmc_blk_reset_success(md, type);
spin_lock_irq(&md->lock);
__blk_end_request(req, err, blk_rq_bytes(req));
spin_unlock_irq(&md->lock);
@@ -731,13 +792,20 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
unsigned int from, nr, arg;
- int err = 0;
+ int err = 0, type = MMC_BLK_SECDISCARD;
- if (!mmc_can_secure_erase_trim(card)) {
+ if (!(mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card))) {
err = -EOPNOTSUPP;
goto out;
}
+ /* The sanitize operation is supported at v4.5 only */
+ if (mmc_can_sanitize(card)) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_SANITIZE_START, 1, 0);
+ goto out;
+ }
+
from = blk_rq_pos(req);
nr = blk_rq_sectors(req);
@@ -745,7 +813,7 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
arg = MMC_SECURE_TRIM1_ARG;
else
arg = MMC_SECURE_ERASE_ARG;
-
+retry:
if (card->quirks & MMC_QUIRK_INAND_CMD38) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
INAND_CMD38_ARG_EXT_CSD,
@@ -769,6 +837,10 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq,
err = mmc_erase(card, from, nr, MMC_SECURE_TRIM2_ARG);
}
out:
+ if (err == -EIO && !mmc_blk_reset(md, card->host, type))
+ goto retry;
+ if (!err)
+ mmc_blk_reset_success(md, type);
spin_lock_irq(&md->lock);
__blk_end_request(req, err, blk_rq_bytes(req));
spin_unlock_irq(&md->lock);
@@ -779,16 +851,18 @@ out:
static int mmc_blk_issue_flush(struct mmc_queue *mq, struct request *req)
{
struct mmc_blk_data *md = mq->data;
+ struct mmc_card *card = md->queue.card;
+ int ret = 0;
+
+ ret = mmc_flush_cache(card);
+ if (ret)
+ ret = -EIO;
- /*
- * No-op, only service this because we need REQ_FUA for reliable
- * writes.
- */
spin_lock_irq(&md->lock);
- __blk_end_request_all(req, 0);
+ __blk_end_request_all(req, ret);
spin_unlock_irq(&md->lock);
- return 1;
+ return ret ? 0 : 1;
}
/*
@@ -825,11 +899,11 @@ static inline void mmc_apply_rel_rw(struct mmc_blk_request *brq,
static int mmc_blk_err_check(struct mmc_card *card,
struct mmc_async_req *areq)
{
- enum mmc_blk_status ret = MMC_BLK_SUCCESS;
struct mmc_queue_req *mq_mrq = container_of(areq, struct mmc_queue_req,
mmc_active);
struct mmc_blk_request *brq = &mq_mrq->brq;
struct request *req = mq_mrq->req;
+ int ecc_err = 0;
/*
* sbc.error indicates a problem with the set block count
@@ -841,8 +915,9 @@ static int mmc_blk_err_check(struct mmc_card *card,
* stop.error indicates a problem with the stop command. Data
* may have been transferred, or may still be transferring.
*/
- if (brq->sbc.error || brq->cmd.error || brq->stop.error) {
- switch (mmc_blk_cmd_recovery(card, req, brq)) {
+ if (brq->sbc.error || brq->cmd.error || brq->stop.error ||
+ brq->data.error) {
+ switch (mmc_blk_cmd_recovery(card, req, brq, &ecc_err)) {
case ERR_RETRY:
return MMC_BLK_RETRY;
case ERR_ABORT:
@@ -873,7 +948,7 @@ static int mmc_blk_err_check(struct mmc_card *card,
do {
int err = get_card_status(card, &status, 5);
if (err) {
- printk(KERN_ERR "%s: error %d requesting status\n",
+ pr_err("%s: error %d requesting status\n",
req->rq_disk->disk_name, err);
return MMC_BLK_CMD_ERR;
}
@@ -894,23 +969,21 @@ static int mmc_blk_err_check(struct mmc_card *card,
brq->cmd.resp[0], brq->stop.resp[0]);
if (rq_data_dir(req) == READ) {
- if (brq->data.blocks > 1) {
- /* Redo read one sector at a time */
- pr_warning("%s: retrying using single block read\n",
- req->rq_disk->disk_name);
- return MMC_BLK_RETRY_SINGLE;
- }
+ if (ecc_err)
+ return MMC_BLK_ECC_ERR;
return MMC_BLK_DATA_ERR;
} else {
return MMC_BLK_CMD_ERR;
}
}
- if (ret == MMC_BLK_SUCCESS &&
- blk_rq_bytes(req) != brq->data.bytes_xfered)
- ret = MMC_BLK_PARTIAL;
+ if (!brq->data.bytes_xfered)
+ return MMC_BLK_RETRY;
- return ret;
+ if (blk_rq_bytes(req) != brq->data.bytes_xfered)
+ return MMC_BLK_PARTIAL;
+
+ return MMC_BLK_SUCCESS;
}
static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
@@ -957,13 +1030,20 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
if (brq->data.blocks > card->host->max_blk_count)
brq->data.blocks = card->host->max_blk_count;
- /*
- * After a read error, we redo the request one sector at a time
- * in order to accurately determine which sectors can be read
- * successfully.
- */
- if (disable_multi && brq->data.blocks > 1)
- brq->data.blocks = 1;
+ if (brq->data.blocks > 1) {
+ /*
+ * After a read error, we redo the request one sector
+ * at a time in order to accurately determine which
+ * sectors can be read successfully.
+ */
+ if (disable_multi)
+ brq->data.blocks = 1;
+
+ /* Some controllers can't do multiblock reads due to hw bugs */
+ if (card->host->caps2 & MMC_CAP2_NO_MULTI_READ &&
+ rq_data_dir(req) == READ)
+ brq->data.blocks = 1;
+ }
if (brq->data.blocks > 1 || do_rel_wr) {
/* SPI multiblock writes terminate using a special
@@ -1049,12 +1129,41 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
mmc_queue_bounce_pre(mqrq);
}
+static int mmc_blk_cmd_err(struct mmc_blk_data *md, struct mmc_card *card,
+ struct mmc_blk_request *brq, struct request *req,
+ int ret)
+{
+ /*
+ * If this is an SD card and we're writing, we can first
+ * mark the known good sectors as ok.
+ *
+ * If the card is not SD, we can still ok written sectors
+ * as reported by the controller (which might be less than
+ * the real number of written sectors, but never more).
+ */
+ if (mmc_card_sd(card)) {
+ u32 blocks;
+
+ blocks = mmc_sd_num_wr_blocks(card);
+ if (blocks != (u32)-1) {
+ spin_lock_irq(&md->lock);
+ ret = __blk_end_request(req, 0, blocks << 9);
+ spin_unlock_irq(&md->lock);
+ }
+ } else {
+ spin_lock_irq(&md->lock);
+ ret = __blk_end_request(req, 0, brq->data.bytes_xfered);
+ spin_unlock_irq(&md->lock);
+ }
+ return ret;
+}
+
static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
{
struct mmc_blk_data *md = mq->data;
struct mmc_card *card = md->queue.card;
struct mmc_blk_request *brq = &mq->mqrq_cur->brq;
- int ret = 1, disable_multi = 0, retry = 0;
+ int ret = 1, disable_multi = 0, retry = 0, type;
enum mmc_blk_status status;
struct mmc_queue_req *mq_rq;
struct request *req;
@@ -1076,6 +1185,7 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
mq_rq = container_of(areq, struct mmc_queue_req, mmc_active);
brq = &mq_rq->brq;
req = mq_rq->req;
+ type = rq_data_dir(req) == READ ? MMC_BLK_READ : MMC_BLK_WRITE;
mmc_queue_bounce_post(mq_rq);
switch (status) {
@@ -1084,18 +1194,18 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
/*
* A block was successfully transferred.
*/
+ mmc_blk_reset_success(md, type);
spin_lock_irq(&md->lock);
ret = __blk_end_request(req, 0,
brq->data.bytes_xfered);
spin_unlock_irq(&md->lock);
+ /*
+ * If the blk_end_request function returns non-zero even
+ * though all data has been transferred and no errors
+ * were returned by the host controller, it's a bug.
+ */
if (status == MMC_BLK_SUCCESS && ret) {
- /*
- * The blk_end_request has returned non zero
- * even though all data is transfered and no
- * erros returned by host.
- * If this happen it's a bug.
- */
- printk(KERN_ERR "%s BUG rq_tot %d d_xfer %d\n",
+ pr_err("%s BUG rq_tot %d d_xfer %d\n",
__func__, blk_rq_bytes(req),
brq->data.bytes_xfered);
rqc = NULL;
@@ -1103,16 +1213,36 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
}
break;
case MMC_BLK_CMD_ERR:
- goto cmd_err;
- case MMC_BLK_RETRY_SINGLE:
- disable_multi = 1;
- break;
+ ret = mmc_blk_cmd_err(md, card, brq, req, ret);
+ if (!mmc_blk_reset(md, card->host, type))
+ break;
+ goto cmd_abort;
case MMC_BLK_RETRY:
if (retry++ < 5)
break;
+ /* Fall through */
case MMC_BLK_ABORT:
+ if (!mmc_blk_reset(md, card->host, type))
+ break;
goto cmd_abort;
- case MMC_BLK_DATA_ERR:
+ case MMC_BLK_DATA_ERR: {
+ int err;
+
+ err = mmc_blk_reset(md, card->host, type);
+ if (!err)
+ break;
+ if (err == -ENODEV)
+ goto cmd_abort;
+ /* Fall through */
+ }
+ case MMC_BLK_ECC_ERR:
+ if (brq->data.blocks > 1) {
+ /* Redo read one sector at a time */
+ pr_warning("%s: retrying using single block read\n",
+ req->rq_disk->disk_name);
+ disable_multi = 1;
+ break;
+ }
/*
* After an error, we redo I/O one sector at a
* time, so we only reach here after trying to
@@ -1129,7 +1259,7 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
if (ret) {
/*
- * In case of a none complete request
+ * In case of a incomplete request
* prepare it again and resend.
*/
mmc_blk_rw_rq_prep(mq_rq, card, disable_multi, mq);
@@ -1139,30 +1269,6 @@ static int mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *rqc)
return 1;
- cmd_err:
- /*
- * If this is an SD card and we're writing, we can first
- * mark the known good sectors as ok.
- *
- * If the card is not SD, we can still ok written sectors
- * as reported by the controller (which might be less than
- * the real number of written sectors, but never more).
- */
- if (mmc_card_sd(card)) {
- u32 blocks;
-
- blocks = mmc_sd_num_wr_blocks(card);
- if (blocks != (u32)-1) {
- spin_lock_irq(&md->lock);
- ret = __blk_end_request(req, 0, blocks << 9);
- spin_unlock_irq(&md->lock);
- }
- } else {
- spin_lock_irq(&md->lock);
- ret = __blk_end_request(req, 0, brq->data.bytes_xfered);
- spin_unlock_irq(&md->lock);
- }
-
cmd_abort:
spin_lock_irq(&md->lock);
while (ret)
@@ -1190,6 +1296,11 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
ret = mmc_blk_part_switch(card, md);
if (ret) {
+ if (req) {
+ spin_lock_irq(&md->lock);
+ __blk_end_request_all(req, -EIO);
+ spin_unlock_irq(&md->lock);
+ }
ret = 0;
goto out;
}
@@ -1374,32 +1485,35 @@ static int mmc_blk_alloc_part(struct mmc_card *card,
string_get_size((u64)get_capacity(part_md->disk) << 9, STRING_UNITS_2,
cap_str, sizeof(cap_str));
- printk(KERN_INFO "%s: %s %s partition %u %s\n",
+ pr_info("%s: %s %s partition %u %s\n",
part_md->disk->disk_name, mmc_card_id(card),
mmc_card_name(card), part_md->part_type, cap_str);
return 0;
}
+/* MMC Physical partitions consist of two boot partitions and
+ * up to four general purpose partitions.
+ * For each partition enabled in EXT_CSD a block device will be allocatedi
+ * to provide access to the partition.
+ */
+
static int mmc_blk_alloc_parts(struct mmc_card *card, struct mmc_blk_data *md)
{
- int ret = 0;
+ int idx, ret = 0;
if (!mmc_card_mmc(card))
return 0;
- if (card->ext_csd.boot_size) {
- ret = mmc_blk_alloc_part(card, md, EXT_CSD_PART_CONFIG_ACC_BOOT0,
- card->ext_csd.boot_size >> 9,
- true,
- "boot0");
- if (ret)
- return ret;
- ret = mmc_blk_alloc_part(card, md, EXT_CSD_PART_CONFIG_ACC_BOOT1,
- card->ext_csd.boot_size >> 9,
- true,
- "boot1");
- if (ret)
- return ret;
+ for (idx = 0; idx < card->nr_parts; idx++) {
+ if (card->part[idx].size) {
+ ret = mmc_blk_alloc_part(card, md,
+ card->part[idx].part_cfg,
+ card->part[idx].size >> 9,
+ card->part[idx].force_ro,
+ card->part[idx].name);
+ if (ret)
+ return ret;
+ }
}
return ret;
@@ -1415,7 +1529,7 @@ mmc_blk_set_blksize(struct mmc_blk_data *md, struct mmc_card *card)
mmc_release_host(card->host);
if (err) {
- printk(KERN_ERR "%s: unable to set block size to 512: %d\n",
+ pr_err("%s: unable to set block size to 512: %d\n",
md->disk->disk_name, err);
return -EINVAL;
}
@@ -1517,7 +1631,7 @@ static int mmc_blk_probe(struct mmc_card *card)
string_get_size((u64)get_capacity(md->disk) << 9, STRING_UNITS_2,
cap_str, sizeof(cap_str));
- printk(KERN_INFO "%s: %s %s %s %s\n",
+ pr_info("%s: %s %s %s %s\n",
md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
cap_str, md->read_only ? "(ro)" : "");
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 2bf229acd3b8..b038c4a9468b 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -22,6 +22,7 @@
#include <linux/debugfs.h>
#include <linux/uaccess.h>
#include <linux/seq_file.h>
+#include <linux/module.h>
#define RESULT_OK 0
#define RESULT_FAIL 1
@@ -250,7 +251,7 @@ static int mmc_test_wait_busy(struct mmc_test_card *test)
if (!busy && mmc_test_busy(&cmd)) {
busy = 1;
if (test->card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
- printk(KERN_INFO "%s: Warning: Host did not "
+ pr_info("%s: Warning: Host did not "
"wait for busy state to end.\n",
mmc_hostname(test->card->host));
}
@@ -552,7 +553,7 @@ static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes,
rate = mmc_test_rate(bytes, &ts);
iops = mmc_test_rate(100, &ts); /* I/O ops per sec x 100 */
- printk(KERN_INFO "%s: Transfer of %u sectors (%u%s KiB) took %lu.%09lu "
+ pr_info("%s: Transfer of %u sectors (%u%s KiB) took %lu.%09lu "
"seconds (%u kB/s, %u KiB/s, %u.%02u IOPS)\n",
mmc_hostname(test->card->host), sectors, sectors >> 1,
(sectors & 1 ? ".5" : ""), (unsigned long)ts.tv_sec,
@@ -578,7 +579,7 @@ static void mmc_test_print_avg_rate(struct mmc_test_card *test, uint64_t bytes,
rate = mmc_test_rate(tot, &ts);
iops = mmc_test_rate(count * 100, &ts); /* I/O ops per sec x 100 */
- printk(KERN_INFO "%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
+ pr_info("%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
"%lu.%09lu seconds (%u kB/s, %u KiB/s, "
"%u.%02u IOPS, sg_len %d)\n",
mmc_hostname(test->card->host), count, sectors, count,
@@ -1408,7 +1409,7 @@ static int mmc_test_multi_read_high(struct mmc_test_card *test)
static int mmc_test_no_highmem(struct mmc_test_card *test)
{
- printk(KERN_INFO "%s: Highmem not configured - test skipped\n",
+ pr_info("%s: Highmem not configured - test skipped\n",
mmc_hostname(test->card->host));
return 0;
}
@@ -1435,7 +1436,7 @@ static int mmc_test_area_map(struct mmc_test_card *test, unsigned long sz,
t->max_seg_sz, &t->sg_len, min_sg_len);
}
if (err)
- printk(KERN_INFO "%s: Failed to map sg list\n",
+ pr_info("%s: Failed to map sg list\n",
mmc_hostname(test->card->host));
return err;
}
@@ -2135,7 +2136,7 @@ static int mmc_test_rw_multiple(struct mmc_test_card *test,
return ret;
err:
- printk(KERN_INFO "[%s] error\n", __func__);
+ pr_info("[%s] error\n", __func__);
return ret;
}
@@ -2149,7 +2150,7 @@ static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
if (rw->do_nonblock_req &&
((!pre_req && post_req) || (pre_req && !post_req))) {
- printk(KERN_INFO "error: only one of pre/post is defined\n");
+ pr_info("error: only one of pre/post is defined\n");
return -EINVAL;
}
@@ -2328,6 +2329,31 @@ static int mmc_test_profile_sglen_r_nonblock_perf(struct mmc_test_card *test)
return mmc_test_rw_multiple_sg_len(test, &test_data);
}
+/*
+ * eMMC hardware reset.
+ */
+static int mmc_test_hw_reset(struct mmc_test_card *test)
+{
+ struct mmc_card *card = test->card;
+ struct mmc_host *host = card->host;
+ int err;
+
+ err = mmc_hw_reset_check(host);
+ if (!err)
+ return RESULT_OK;
+
+ if (err == -ENOSYS)
+ return RESULT_FAIL;
+
+ if (err != -EOPNOTSUPP)
+ return err;
+
+ if (!mmc_can_reset(card))
+ return RESULT_UNSUP_CARD;
+
+ return RESULT_UNSUP_HOST;
+}
+
static const struct mmc_test_case mmc_test_cases[] = {
{
.name = "Basic write (no data verification)",
@@ -2650,6 +2676,11 @@ static const struct mmc_test_case mmc_test_cases[] = {
.run = mmc_test_profile_sglen_r_nonblock_perf,
.cleanup = mmc_test_area_cleanup,
},
+
+ {
+ .name = "eMMC hardware reset",
+ .run = mmc_test_hw_reset,
+ },
};
static DEFINE_MUTEX(mmc_test_lock);
@@ -2660,7 +2691,7 @@ static void mmc_test_run(struct mmc_test_card *test, int testcase)
{
int i, ret;
- printk(KERN_INFO "%s: Starting tests of card %s...\n",
+ pr_info("%s: Starting tests of card %s...\n",
mmc_hostname(test->card->host), mmc_card_id(test->card));
mmc_claim_host(test->card->host);
@@ -2671,14 +2702,14 @@ static void mmc_test_run(struct mmc_test_card *test, int testcase)
if (testcase && ((i + 1) != testcase))
continue;
- printk(KERN_INFO "%s: Test case %d. %s...\n",
+ pr_info("%s: Test case %d. %s...\n",
mmc_hostname(test->card->host), i + 1,
mmc_test_cases[i].name);
if (mmc_test_cases[i].prepare) {
ret = mmc_test_cases[i].prepare(test);
if (ret) {
- printk(KERN_INFO "%s: Result: Prepare "
+ pr_info("%s: Result: Prepare "
"stage failed! (%d)\n",
mmc_hostname(test->card->host),
ret);
@@ -2708,25 +2739,25 @@ static void mmc_test_run(struct mmc_test_card *test, int testcase)
ret = mmc_test_cases[i].run(test);
switch (ret) {
case RESULT_OK:
- printk(KERN_INFO "%s: Result: OK\n",
+ pr_info("%s: Result: OK\n",
mmc_hostname(test->card->host));
break;
case RESULT_FAIL:
- printk(KERN_INFO "%s: Result: FAILED\n",
+ pr_info("%s: Result: FAILED\n",
mmc_hostname(test->card->host));
break;
case RESULT_UNSUP_HOST:
- printk(KERN_INFO "%s: Result: UNSUPPORTED "
+ pr_info("%s: Result: UNSUPPORTED "
"(by host)\n",
mmc_hostname(test->card->host));
break;
case RESULT_UNSUP_CARD:
- printk(KERN_INFO "%s: Result: UNSUPPORTED "
+ pr_info("%s: Result: UNSUPPORTED "
"(by card)\n",
mmc_hostname(test->card->host));
break;
default:
- printk(KERN_INFO "%s: Result: ERROR (%d)\n",
+ pr_info("%s: Result: ERROR (%d)\n",
mmc_hostname(test->card->host), ret);
}
@@ -2737,7 +2768,7 @@ static void mmc_test_run(struct mmc_test_card *test, int testcase)
if (mmc_test_cases[i].cleanup) {
ret = mmc_test_cases[i].cleanup(test);
if (ret) {
- printk(KERN_INFO "%s: Warning: Cleanup "
+ pr_info("%s: Warning: Cleanup "
"stage failed! (%d)\n",
mmc_hostname(test->card->host),
ret);
@@ -2747,7 +2778,7 @@ static void mmc_test_run(struct mmc_test_card *test, int testcase)
mmc_release_host(test->card->host);
- printk(KERN_INFO "%s: Tests completed.\n",
+ pr_info("%s: Tests completed.\n",
mmc_hostname(test->card->host));
}
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 45fb362e3f01..dcad59cbfef1 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -108,7 +108,7 @@ static void mmc_request(struct request_queue *q)
wake_up_process(mq->thread);
}
-struct scatterlist *mmc_alloc_sg(int sg_len, int *err)
+static struct scatterlist *mmc_alloc_sg(int sg_len, int *err)
{
struct scatterlist *sg;
@@ -140,7 +140,7 @@ static void mmc_queue_setup_discard(struct request_queue *q,
/* granularity must not be greater than max. discard */
if (card->pref_erase > max_discard)
q->limits.discard_granularity = 0;
- if (mmc_can_secure_erase_trim(card))
+ if (mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card))
queue_flag_set_unlocked(QUEUE_FLAG_SECDISCARD, q);
}
@@ -197,13 +197,13 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
if (bouncesz > 512) {
mqrq_cur->bounce_buf = kmalloc(bouncesz, GFP_KERNEL);
if (!mqrq_cur->bounce_buf) {
- printk(KERN_WARNING "%s: unable to "
+ pr_warning("%s: unable to "
"allocate bounce cur buffer\n",
mmc_card_name(card));
}
mqrq_prev->bounce_buf = kmalloc(bouncesz, GFP_KERNEL);
if (!mqrq_prev->bounce_buf) {
- printk(KERN_WARNING "%s: unable to "
+ pr_warning("%s: unable to "
"allocate bounce prev buffer\n",
mmc_card_name(card));
kfree(mqrq_cur->bounce_buf);
diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c
index c8c9edb3d7cb..2c151e18c9e8 100644
--- a/drivers/mmc/card/sdio_uart.c
+++ b/drivers/mmc/card/sdio_uart.c
@@ -1082,7 +1082,7 @@ static int sdio_uart_probe(struct sdio_func *func,
return -ENOMEM;
if (func->class == SDIO_CLASS_UART) {
- printk(KERN_WARNING "%s: need info on UART class basic setup\n",
+ pr_warning("%s: need info on UART class basic setup\n",
sdio_func_id(func));
kfree(port);
return -ENOSYS;
@@ -1101,23 +1101,23 @@ static int sdio_uart_probe(struct sdio_func *func,
break;
}
if (!tpl) {
- printk(KERN_WARNING
+ pr_warning(
"%s: can't find tuple 0x91 subtuple 0 (SUBTPL_SIOREG) for GPS class\n",
sdio_func_id(func));
kfree(port);
return -EINVAL;
}
- printk(KERN_DEBUG "%s: Register ID = 0x%02x, Exp ID = 0x%02x\n",
+ pr_debug("%s: Register ID = 0x%02x, Exp ID = 0x%02x\n",
sdio_func_id(func), tpl->data[2], tpl->data[3]);
port->regs_offset = (tpl->data[4] << 0) |
(tpl->data[5] << 8) |
(tpl->data[6] << 16);
- printk(KERN_DEBUG "%s: regs offset = 0x%x\n",
+ pr_debug("%s: regs offset = 0x%x\n",
sdio_func_id(func), port->regs_offset);
port->uartclk = tpl->data[7] * 115200;
if (port->uartclk == 0)
port->uartclk = 115200;
- printk(KERN_DEBUG "%s: clk %d baudcode %u 4800-div %u\n",
+ pr_debug("%s: clk %d baudcode %u 4800-div %u\n",
sdio_func_id(func), port->uartclk,
tpl->data[7], tpl->data[8] | (tpl->data[9] << 8));
} else {
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 393d817ed040..46b6e84d953e 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -295,7 +295,7 @@ int mmc_add_card(struct mmc_card *card)
}
if (mmc_host_is_spi(card->host)) {
- printk(KERN_INFO "%s: new %s%s%s card on SPI\n",
+ pr_info("%s: new %s%s%s card on SPI\n",
mmc_hostname(card->host),
mmc_card_highspeed(card) ? "high speed " : "",
mmc_card_ddr_mode(card) ? "DDR " : "",
@@ -334,10 +334,10 @@ void mmc_remove_card(struct mmc_card *card)
if (mmc_card_present(card)) {
if (mmc_host_is_spi(card->host)) {
- printk(KERN_INFO "%s: SPI card removed\n",
+ pr_info("%s: SPI card removed\n",
mmc_hostname(card->host));
} else {
- printk(KERN_INFO "%s: card %04x removed\n",
+ pr_info("%s: card %04x removed\n",
mmc_hostname(card->host), card->rca);
}
device_del(&card->dev);
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index b27b94078c21..5278ffb20e74 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -24,6 +24,8 @@
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
#include <linux/suspend.h>
+#include <linux/fault-inject.h>
+#include <linux/random.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
@@ -83,6 +85,43 @@ static void mmc_flush_scheduled_work(void)
flush_workqueue(workqueue);
}
+#ifdef CONFIG_FAIL_MMC_REQUEST
+
+/*
+ * Internal function. Inject random data errors.
+ * If mmc_data is NULL no errors are injected.
+ */
+static void mmc_should_fail_request(struct mmc_host *host,
+ struct mmc_request *mrq)
+{
+ struct mmc_command *cmd = mrq->cmd;
+ struct mmc_data *data = mrq->data;
+ static const int data_errors[] = {
+ -ETIMEDOUT,
+ -EILSEQ,
+ -EIO,
+ };
+
+ if (!data)
+ return;
+
+ if (cmd->error || data->error ||
+ !should_fail(&host->fail_mmc_request, data->blksz * data->blocks))
+ return;
+
+ data->error = data_errors[random32() % ARRAY_SIZE(data_errors)];
+ data->bytes_xfered = (random32() % (data->bytes_xfered >> 9)) << 9;
+}
+
+#else /* CONFIG_FAIL_MMC_REQUEST */
+
+static inline void mmc_should_fail_request(struct mmc_host *host,
+ struct mmc_request *mrq)
+{
+}
+
+#endif /* CONFIG_FAIL_MMC_REQUEST */
+
/**
* mmc_request_done - finish processing an MMC request
* @host: MMC host which completed request
@@ -102,13 +141,15 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
}
if (err && cmd->retries) {
- pr_debug("%s: req failed (CMD%u): %d, retrying...\n",
- mmc_hostname(host), cmd->opcode, err);
-
- cmd->retries--;
- cmd->error = 0;
- host->ops->request(host, mrq);
+ /*
+ * Request starter must handle retries - see
+ * mmc_wait_for_req_done().
+ */
+ if (mrq->done)
+ mrq->done(mrq);
} else {
+ mmc_should_fail_request(host, mrq);
+
led_trigger_event(host->led, LED_OFF);
pr_debug("%s: req done (CMD%u): %d: %08x %08x %08x %08x\n",
@@ -212,7 +253,21 @@ static void __mmc_start_req(struct mmc_host *host, struct mmc_request *mrq)
static void mmc_wait_for_req_done(struct mmc_host *host,
struct mmc_request *mrq)
{
- wait_for_completion(&mrq->completion);
+ struct mmc_command *cmd;
+
+ while (1) {
+ wait_for_completion(&mrq->completion);
+
+ cmd = mrq->cmd;
+ if (!cmd->error || !cmd->retries)
+ break;
+
+ pr_debug("%s: req failed (CMD%u): %d, retrying...\n",
+ mmc_hostname(host), cmd->opcode, cmd->error);
+ cmd->retries--;
+ cmd->error = 0;
+ host->ops->request(host, mrq);
+ }
}
/**
@@ -279,8 +334,14 @@ struct mmc_async_req *mmc_start_req(struct mmc_host *host,
mmc_wait_for_req_done(host, host->areq->mrq);
err = host->areq->err_check(host->card, host->areq);
if (err) {
+ /* post process the completed failed request */
mmc_post_req(host, host->areq->mrq, 0);
if (areq)
+ /*
+ * Cancel the new prepared request, because
+ * it can't run until the failed
+ * request has been properly handled.
+ */
mmc_post_req(host, areq->mrq, -EINVAL);
host->areq = NULL;
@@ -319,6 +380,63 @@ void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq)
EXPORT_SYMBOL(mmc_wait_for_req);
/**
+ * mmc_interrupt_hpi - Issue for High priority Interrupt
+ * @card: the MMC card associated with the HPI transfer
+ *
+ * Issued High Priority Interrupt, and check for card status
+ * util out-of prg-state.
+ */
+int mmc_interrupt_hpi(struct mmc_card *card)
+{
+ int err;
+ u32 status;
+
+ BUG_ON(!card);
+
+ if (!card->ext_csd.hpi_en) {
+ pr_info("%s: HPI enable bit unset\n", mmc_hostname(card->host));
+ return 1;
+ }
+
+ mmc_claim_host(card->host);
+ err = mmc_send_status(card, &status);
+ if (err) {
+ pr_err("%s: Get card status fail\n", mmc_hostname(card->host));
+ goto out;
+ }
+
+ /*
+ * If the card status is in PRG-state, we can send the HPI command.
+ */
+ if (R1_CURRENT_STATE(status) == R1_STATE_PRG) {
+ do {
+ /*
+ * We don't know when the HPI command will finish
+ * processing, so we need to resend HPI until out
+ * of prg-state, and keep checking the card status
+ * with SEND_STATUS. If a timeout error occurs when
+ * sending the HPI command, we are already out of
+ * prg-state.
+ */
+ err = mmc_send_hpi_cmd(card, &status);
+ if (err)
+ pr_debug("%s: abort HPI (%d error)\n",
+ mmc_hostname(card->host), err);
+
+ err = mmc_send_status(card, &status);
+ if (err)
+ break;
+ } while (R1_CURRENT_STATE(status) == R1_STATE_PRG);
+ } else
+ pr_debug("%s: Left prg-state\n", mmc_hostname(card->host));
+
+out:
+ mmc_release_host(card->host);
+ return err;
+}
+EXPORT_SYMBOL(mmc_interrupt_hpi);
+
+/**
* mmc_wait_for_cmd - start a command and wait for completion
* @host: MMC host to start command
* @cmd: MMC command to start
@@ -330,7 +448,7 @@ EXPORT_SYMBOL(mmc_wait_for_req);
*/
int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd, int retries)
{
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
WARN_ON(!host->claimed);
@@ -1119,13 +1237,11 @@ static void mmc_power_up(struct mmc_host *host)
bit = fls(host->ocr_avail) - 1;
host->ios.vdd = bit;
- if (mmc_host_is_spi(host)) {
+ if (mmc_host_is_spi(host))
host->ios.chip_select = MMC_CS_HIGH;
- host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;
- } else {
+ else
host->ios.chip_select = MMC_CS_DONTCARE;
- host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;
- }
+ host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;
host->ios.power_mode = MMC_POWER_UP;
host->ios.bus_width = MMC_BUS_WIDTH_1;
host->ios.timing = MMC_TIMING_LEGACY;
@@ -1151,13 +1267,45 @@ static void mmc_power_up(struct mmc_host *host)
mmc_host_clk_release(host);
}
-static void mmc_power_off(struct mmc_host *host)
+void mmc_power_off(struct mmc_host *host)
{
+ struct mmc_card *card;
+ unsigned int notify_type;
+ unsigned int timeout;
+ int err;
+
mmc_host_clk_hold(host);
+ card = host->card;
host->ios.clock = 0;
host->ios.vdd = 0;
+ if (card && mmc_card_mmc(card) &&
+ (card->poweroff_notify_state == MMC_POWERED_ON)) {
+
+ if (host->power_notify_type == MMC_HOST_PW_NOTIFY_SHORT) {
+ notify_type = EXT_CSD_POWER_OFF_SHORT;
+ timeout = card->ext_csd.generic_cmd6_time;
+ card->poweroff_notify_state = MMC_POWEROFF_SHORT;
+ } else {
+ notify_type = EXT_CSD_POWER_OFF_LONG;
+ timeout = card->ext_csd.power_off_longtime;
+ card->poweroff_notify_state = MMC_POWEROFF_LONG;
+ }
+
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_POWER_OFF_NOTIFICATION,
+ notify_type, timeout);
+
+ if (err && err != -EBADMSG)
+ pr_err("Device failed to respond within %d poweroff "
+ "time. Forcefully powering down the device\n",
+ timeout);
+
+ /* Set the card state to no notification after the poweroff */
+ card->poweroff_notify_state = MMC_NO_POWER_NOTIFICATION;
+ }
+
/*
* Reset ocr mask to be the highest possible voltage supported for
* this mmc host. This value will be used at next power up.
@@ -1173,6 +1321,13 @@ static void mmc_power_off(struct mmc_host *host)
host->ios.timing = MMC_TIMING_LEGACY;
mmc_set_ios(host);
+ /*
+ * Some configurations, such as the 802.11 SDIO card in the OLPC
+ * XO-1.5, require a short delay after poweroff before the card
+ * can be successfully turned on again.
+ */
+ mmc_delay(1);
+
mmc_host_clk_release(host);
}
@@ -1241,8 +1396,7 @@ void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops)
}
/*
- * Remove the current bus handler from a host. Assumes that there are
- * no interesting cards left, so the bus is powered down.
+ * Remove the current bus handler from a host.
*/
void mmc_detach_bus(struct mmc_host *host)
{
@@ -1259,8 +1413,6 @@ void mmc_detach_bus(struct mmc_host *host)
spin_unlock_irqrestore(&host->lock, flags);
- mmc_power_off(host);
-
mmc_bus_put(host);
}
@@ -1478,9 +1630,9 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, 0);
if (err) {
- printk(KERN_ERR "mmc_erase: group start error %d, "
+ pr_err("mmc_erase: group start error %d, "
"status %#x\n", err, cmd.resp[0]);
- err = -EINVAL;
+ err = -EIO;
goto out;
}
@@ -1493,9 +1645,9 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
err = mmc_wait_for_cmd(card->host, &cmd, 0);
if (err) {
- printk(KERN_ERR "mmc_erase: group end error %d, status %#x\n",
+ pr_err("mmc_erase: group end error %d, status %#x\n",
err, cmd.resp[0]);
- err = -EINVAL;
+ err = -EIO;
goto out;
}
@@ -1506,7 +1658,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
cmd.cmd_timeout_ms = mmc_erase_timeout(card, arg, qty);
err = mmc_wait_for_cmd(card->host, &cmd, 0);
if (err) {
- printk(KERN_ERR "mmc_erase: erase error %d, status %#x\n",
+ pr_err("mmc_erase: erase error %d, status %#x\n",
err, cmd.resp[0]);
err = -EIO;
goto out;
@@ -1523,7 +1675,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
/* Do not retry else we can't see errors */
err = mmc_wait_for_cmd(card->host, &cmd, 0);
if (err || (cmd.resp[0] & 0xFDF92000)) {
- printk(KERN_ERR "error %d requesting status %#x\n",
+ pr_err("error %d requesting status %#x\n",
err, cmd.resp[0]);
err = -EIO;
goto out;
@@ -1614,10 +1766,32 @@ int mmc_can_trim(struct mmc_card *card)
{
if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN)
return 1;
+ if (mmc_can_discard(card))
+ return 1;
return 0;
}
EXPORT_SYMBOL(mmc_can_trim);
+int mmc_can_discard(struct mmc_card *card)
+{
+ /*
+ * As there's no way to detect the discard support bit at v4.5
+ * use the s/w feature support filed.
+ */
+ if (card->ext_csd.feature_support & MMC_DISCARD_FEATURE)
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL(mmc_can_discard);
+
+int mmc_can_sanitize(struct mmc_card *card)
+{
+ if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_SANITIZE)
+ return 1;
+ return 0;
+}
+EXPORT_SYMBOL(mmc_can_sanitize);
+
int mmc_can_secure_erase_trim(struct mmc_card *card)
{
if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_ER_EN)
@@ -1727,6 +1901,94 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen)
}
EXPORT_SYMBOL(mmc_set_blocklen);
+static void mmc_hw_reset_for_init(struct mmc_host *host)
+{
+ if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
+ return;
+ mmc_host_clk_hold(host);
+ host->ops->hw_reset(host);
+ mmc_host_clk_release(host);
+}
+
+int mmc_can_reset(struct mmc_card *card)
+{
+ u8 rst_n_function;
+
+ if (!mmc_card_mmc(card))
+ return 0;
+ rst_n_function = card->ext_csd.rst_n_function;
+ if ((rst_n_function & EXT_CSD_RST_N_EN_MASK) != EXT_CSD_RST_N_ENABLED)
+ return 0;
+ return 1;
+}
+EXPORT_SYMBOL(mmc_can_reset);
+
+static int mmc_do_hw_reset(struct mmc_host *host, int check)
+{
+ struct mmc_card *card = host->card;
+
+ if (!host->bus_ops->power_restore)
+ return -EOPNOTSUPP;
+
+ if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
+ return -EOPNOTSUPP;
+
+ if (!card)
+ return -EINVAL;
+
+ if (!mmc_can_reset(card))
+ return -EOPNOTSUPP;
+
+ mmc_host_clk_hold(host);
+ mmc_set_clock(host, host->f_init);
+
+ host->ops->hw_reset(host);
+
+ /* If the reset has happened, then a status command will fail */
+ if (check) {
+ struct mmc_command cmd = {0};
+ int err;
+
+ cmd.opcode = MMC_SEND_STATUS;
+ if (!mmc_host_is_spi(card->host))
+ cmd.arg = card->rca << 16;
+ cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
+ err = mmc_wait_for_cmd(card->host, &cmd, 0);
+ if (!err) {
+ mmc_host_clk_release(host);
+ return -ENOSYS;
+ }
+ }
+
+ host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_DDR);
+ if (mmc_host_is_spi(host)) {
+ host->ios.chip_select = MMC_CS_HIGH;
+ host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;
+ } else {
+ host->ios.chip_select = MMC_CS_DONTCARE;
+ host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;
+ }
+ host->ios.bus_width = MMC_BUS_WIDTH_1;
+ host->ios.timing = MMC_TIMING_LEGACY;
+ mmc_set_ios(host);
+
+ mmc_host_clk_release(host);
+
+ return host->bus_ops->power_restore(host);
+}
+
+int mmc_hw_reset(struct mmc_host *host)
+{
+ return mmc_do_hw_reset(host, 0);
+}
+EXPORT_SYMBOL(mmc_hw_reset);
+
+int mmc_hw_reset_check(struct mmc_host *host)
+{
+ return mmc_do_hw_reset(host, 1);
+}
+EXPORT_SYMBOL(mmc_hw_reset_check);
+
static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
{
host->f_init = freq;
@@ -1738,6 +2000,12 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
mmc_power_up(host);
/*
+ * Some eMMCs (with VCCQ always on) may not be reset after power up, so
+ * do a hardware reset if possible.
+ */
+ mmc_hw_reset_for_init(host);
+
+ /*
* sdio_reset sends CMD52 to reset card. Since we do not know
* if the card is being re-initialized, just send it. CMD52
* should be ignored by SD/eMMC cards.
@@ -1845,6 +2113,7 @@ void mmc_stop_host(struct mmc_host *host)
mmc_claim_host(host);
mmc_detach_bus(host);
+ mmc_power_off(host);
mmc_release_host(host);
mmc_bus_put(host);
return;
@@ -1946,6 +2215,65 @@ int mmc_card_can_sleep(struct mmc_host *host)
}
EXPORT_SYMBOL(mmc_card_can_sleep);
+/*
+ * Flush the cache to the non-volatile storage.
+ */
+int mmc_flush_cache(struct mmc_card *card)
+{
+ struct mmc_host *host = card->host;
+ int err = 0;
+
+ if (!(host->caps2 & MMC_CAP2_CACHE_CTRL))
+ return err;
+
+ if (mmc_card_mmc(card) &&
+ (card->ext_csd.cache_size > 0) &&
+ (card->ext_csd.cache_ctrl & 1)) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_FLUSH_CACHE, 1, 0);
+ if (err)
+ pr_err("%s: cache flush error %d\n",
+ mmc_hostname(card->host), err);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(mmc_flush_cache);
+
+/*
+ * Turn the cache ON/OFF.
+ * Turning the cache OFF shall trigger flushing of the data
+ * to the non-volatile storage.
+ */
+int mmc_cache_ctrl(struct mmc_host *host, u8 enable)
+{
+ struct mmc_card *card = host->card;
+ int err = 0;
+
+ if (!(host->caps2 & MMC_CAP2_CACHE_CTRL) ||
+ mmc_card_is_removable(host))
+ return err;
+
+ if (card && mmc_card_mmc(card) &&
+ (card->ext_csd.cache_size > 0)) {
+ enable = !!enable;
+
+ if (card->ext_csd.cache_ctrl ^ enable)
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_CACHE_CTRL, enable, 0);
+ if (err)
+ pr_err("%s: cache %s error %d\n",
+ mmc_hostname(card->host),
+ enable ? "on" : "off",
+ err);
+ else
+ card->ext_csd.cache_ctrl = enable;
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(mmc_cache_ctrl);
+
#ifdef CONFIG_PM
/**
@@ -1960,23 +2288,39 @@ int mmc_suspend_host(struct mmc_host *host)
cancel_delayed_work(&host->disable);
cancel_delayed_work(&host->detect);
mmc_flush_scheduled_work();
+ err = mmc_cache_ctrl(host, 0);
+ if (err)
+ goto out;
mmc_bus_get(host);
if (host->bus_ops && !host->bus_dead) {
- if (host->bus_ops->suspend)
- err = host->bus_ops->suspend(host);
- if (err == -ENOSYS || !host->bus_ops->resume) {
- /*
- * We simply "remove" the card in this case.
- * It will be redetected on resume.
- */
- if (host->bus_ops->remove)
- host->bus_ops->remove(host);
- mmc_claim_host(host);
- mmc_detach_bus(host);
- mmc_release_host(host);
- host->pm_flags = 0;
- err = 0;
+
+ /*
+ * A long response time is not acceptable for device drivers
+ * when doing suspend. Prevent mmc_claim_host in the suspend
+ * sequence, to potentially wait "forever" by trying to
+ * pre-claim the host.
+ */
+ if (mmc_try_claim_host(host)) {
+ if (host->bus_ops->suspend)
+ err = host->bus_ops->suspend(host);
+ if (err == -ENOSYS || !host->bus_ops->resume) {
+ /*
+ * We simply "remove" the card in this case.
+ * It will be redetected on resume.
+ */
+ if (host->bus_ops->remove)
+ host->bus_ops->remove(host);
+ mmc_claim_host(host);
+ mmc_detach_bus(host);
+ mmc_power_off(host);
+ mmc_release_host(host);
+ host->pm_flags = 0;
+ err = 0;
+ }
+ mmc_do_release_host(host);
+ } else {
+ err = -EBUSY;
}
}
mmc_bus_put(host);
@@ -1984,6 +2328,7 @@ int mmc_suspend_host(struct mmc_host *host)
if (!err && !mmc_card_keep_power(host))
mmc_power_off(host);
+out:
return err;
}
@@ -2018,7 +2363,7 @@ int mmc_resume_host(struct mmc_host *host)
BUG_ON(!host->bus_ops->resume);
err = host->bus_ops->resume(host);
if (err) {
- printk(KERN_WARNING "%s: error %d during resume "
+ pr_warning("%s: error %d during resume "
"(card was removed?)\n",
mmc_hostname(host), err);
err = 0;
@@ -2049,6 +2394,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
spin_lock_irqsave(&host->lock, flags);
host->rescan_disable = 1;
+ host->power_notify_type = MMC_HOST_PW_NOTIFY_SHORT;
spin_unlock_irqrestore(&host->lock, flags);
cancel_delayed_work_sync(&host->detect);
@@ -2061,6 +2407,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
host->bus_ops->remove(host);
mmc_detach_bus(host);
+ mmc_power_off(host);
mmc_release_host(host);
host->pm_flags = 0;
break;
@@ -2071,6 +2418,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
spin_lock_irqsave(&host->lock, flags);
host->rescan_disable = 0;
+ host->power_notify_type = MMC_HOST_PW_NOTIFY_LONG;
spin_unlock_irqrestore(&host->lock, flags);
mmc_detect_change(host, 0);
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index d9411ed2a39b..14664f1fb16f 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -43,6 +43,7 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage,
bool cmd11);
void mmc_set_timing(struct mmc_host *host, unsigned int timing);
void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
+void mmc_power_off(struct mmc_host *host);
static inline void mmc_delay(unsigned int ms)
{
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 998797ed67a6..6045ea469362 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -7,11 +7,13 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
+#include <linux/moduleparam.h>
#include <linux/debugfs.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/stat.h>
+#include <linux/fault-inject.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
@@ -19,6 +21,14 @@
#include "core.h"
#include "mmc_ops.h"
+#ifdef CONFIG_FAIL_MMC_REQUEST
+
+static DECLARE_FAULT_ATTR(fail_default_attr);
+static char *fail_request;
+module_param(fail_request, charp, 0);
+
+#endif /* CONFIG_FAIL_MMC_REQUEST */
+
/* The debugfs functions are optimized away when CONFIG_DEBUG_FS isn't set. */
static int mmc_ios_show(struct seq_file *s, void *data)
{
@@ -113,6 +123,15 @@ static int mmc_ios_show(struct seq_file *s, void *data)
case MMC_TIMING_SD_HS:
str = "sd high-speed";
break;
+ case MMC_TIMING_UHS_SDR50:
+ str = "sd uhs SDR50";
+ break;
+ case MMC_TIMING_UHS_SDR104:
+ str = "sd uhs SDR104";
+ break;
+ case MMC_TIMING_UHS_DDR50:
+ str = "sd uhs DDR50";
+ break;
default:
str = "invalid";
break;
@@ -188,6 +207,15 @@ void mmc_add_host_debugfs(struct mmc_host *host)
root, &host->clk_delay))
goto err_node;
#endif
+#ifdef CONFIG_FAIL_MMC_REQUEST
+ if (fail_request)
+ setup_fault_attr(&fail_default_attr, fail_request);
+ host->fail_mmc_request = fail_default_attr;
+ if (IS_ERR(fault_create_debugfs_attr("fail_mmc_request",
+ root,
+ &host->fail_mmc_request)))
+ goto err_node;
+#endif
return;
err_node:
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 793d0a0dad8d..ca2e4f50f615 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -301,6 +301,17 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
host->max_blk_size = 512;
host->max_blk_count = PAGE_CACHE_SIZE / 512;
+ /*
+ * Enable runtime power management by default. This flag was added due
+ * to runtime power management causing disruption for some users, but
+ * the power on/off code has been improved since then.
+ *
+ * We'll enable this flag by default as an experiment, and if no
+ * problems are reported, we will follow up later and remove the flag
+ * altogether.
+ */
+ host->caps = MMC_CAP_POWER_OFF_CARD;
+
return host;
free:
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 5700b1cbdfec..36270449dd9d 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -101,7 +101,7 @@ static int mmc_decode_cid(struct mmc_card *card)
break;
default:
- printk(KERN_ERR "%s: card has unknown MMCA version %d\n",
+ pr_err("%s: card has unknown MMCA version %d\n",
mmc_hostname(card->host), card->csd.mmca_vsn);
return -EINVAL;
}
@@ -135,7 +135,7 @@ static int mmc_decode_csd(struct mmc_card *card)
*/
csd->structure = UNSTUFF_BITS(resp, 126, 2);
if (csd->structure == 0) {
- printk(KERN_ERR "%s: unrecognised CSD structure version %d\n",
+ pr_err("%s: unrecognised CSD structure version %d\n",
mmc_hostname(card->host), csd->structure);
return -EINVAL;
}
@@ -195,7 +195,7 @@ static int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
*/
ext_csd = kmalloc(512, GFP_KERNEL);
if (!ext_csd) {
- printk(KERN_ERR "%s: could not allocate a buffer to "
+ pr_err("%s: could not allocate a buffer to "
"receive the ext_csd.\n", mmc_hostname(card->host));
return -ENOMEM;
}
@@ -217,12 +217,12 @@ static int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
* stored in their CSD.
*/
if (card->csd.capacity == (4096 * 512)) {
- printk(KERN_ERR "%s: unable to read EXT_CSD "
+ pr_err("%s: unable to read EXT_CSD "
"on a possible high capacity card. "
"Card will be ignored.\n",
mmc_hostname(card->host));
} else {
- printk(KERN_WARNING "%s: unable to read "
+ pr_warning("%s: unable to read "
"EXT_CSD, performance might "
"suffer.\n",
mmc_hostname(card->host));
@@ -239,7 +239,9 @@ static int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
*/
static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
{
- int err = 0;
+ int err = 0, idx;
+ unsigned int part_size;
+ u8 hc_erase_grp_sz = 0, hc_wp_grp_sz = 0;
BUG_ON(!card);
@@ -250,7 +252,7 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
card->ext_csd.raw_ext_csd_structure = ext_csd[EXT_CSD_STRUCTURE];
if (card->csd.structure == 3) {
if (card->ext_csd.raw_ext_csd_structure > 2) {
- printk(KERN_ERR "%s: unrecognised EXT_CSD structure "
+ pr_err("%s: unrecognised EXT_CSD structure "
"version %d\n", mmc_hostname(card->host),
card->ext_csd.raw_ext_csd_structure);
err = -EINVAL;
@@ -260,7 +262,7 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
card->ext_csd.rev = ext_csd[EXT_CSD_REV];
if (card->ext_csd.rev > 6) {
- printk(KERN_ERR "%s: unrecognised EXT_CSD revision %d\n",
+ pr_err("%s: unrecognised EXT_CSD revision %d\n",
mmc_hostname(card->host), card->ext_csd.rev);
err = -EINVAL;
goto out;
@@ -306,7 +308,7 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
break;
default:
/* MMC v4 spec says this cannot happen */
- printk(KERN_WARNING "%s: card is mmc v4 but doesn't "
+ pr_warning("%s: card is mmc v4 but doesn't "
"support any high-speed modes.\n",
mmc_hostname(card->host));
}
@@ -340,7 +342,14 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
* There are two boot regions of equal size, defined in
* multiples of 128K.
*/
- card->ext_csd.boot_size = ext_csd[EXT_CSD_BOOT_MULT] << 17;
+ if (ext_csd[EXT_CSD_BOOT_MULT] && mmc_boot_partition_access(card->host)) {
+ for (idx = 0; idx < MMC_NUM_BOOT_PARTITION; idx++) {
+ part_size = ext_csd[EXT_CSD_BOOT_MULT] << 17;
+ mmc_part_add(card, part_size,
+ EXT_CSD_PART_CONFIG_ACC_BOOT0 + idx,
+ "boot%d", idx, true);
+ }
+ }
}
card->ext_csd.raw_hc_erase_gap_size =
@@ -359,11 +368,12 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
* card has the Enhanced area enabled. If so, export enhanced
* area offset and size to user by adding sysfs interface.
*/
+ card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) &&
(ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) {
- u8 hc_erase_grp_sz =
+ hc_erase_grp_sz =
ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
- u8 hc_wp_grp_sz =
+ hc_wp_grp_sz =
ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
card->ext_csd.enhanced_area_en = 1;
@@ -392,6 +402,41 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
card->ext_csd.enhanced_area_offset = -EINVAL;
card->ext_csd.enhanced_area_size = -EINVAL;
}
+
+ /*
+ * General purpose partition feature support --
+ * If ext_csd has the size of general purpose partitions,
+ * set size, part_cfg, partition name in mmc_part.
+ */
+ if (ext_csd[EXT_CSD_PARTITION_SUPPORT] &
+ EXT_CSD_PART_SUPPORT_PART_EN) {
+ if (card->ext_csd.enhanced_area_en != 1) {
+ hc_erase_grp_sz =
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ hc_wp_grp_sz =
+ ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+
+ card->ext_csd.enhanced_area_en = 1;
+ }
+
+ for (idx = 0; idx < MMC_NUM_GP_PARTITION; idx++) {
+ if (!ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3] &&
+ !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1] &&
+ !ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2])
+ continue;
+ part_size =
+ (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 2]
+ << 16) +
+ (ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3 + 1]
+ << 8) +
+ ext_csd[EXT_CSD_GP_SIZE_MULT + idx * 3];
+ part_size *= (size_t)(hc_erase_grp_sz *
+ hc_wp_grp_sz);
+ mmc_part_add(card, part_size << 19,
+ EXT_CSD_PART_CONFIG_ACC_GP0 + idx,
+ "gp%d", idx, false);
+ }
+ }
card->ext_csd.sec_trim_mult =
ext_csd[EXT_CSD_SEC_TRIM_MULT];
card->ext_csd.sec_erase_mult =
@@ -402,14 +447,48 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
ext_csd[EXT_CSD_TRIM_MULT];
}
- if (card->ext_csd.rev >= 5)
+ if (card->ext_csd.rev >= 5) {
+ /* check whether the eMMC card supports HPI */
+ if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x1) {
+ card->ext_csd.hpi = 1;
+ if (ext_csd[EXT_CSD_HPI_FEATURES] & 0x2)
+ card->ext_csd.hpi_cmd = MMC_STOP_TRANSMISSION;
+ else
+ card->ext_csd.hpi_cmd = MMC_SEND_STATUS;
+ /*
+ * Indicate the maximum timeout to close
+ * a command interrupted by HPI
+ */
+ card->ext_csd.out_of_int_time =
+ ext_csd[EXT_CSD_OUT_OF_INTERRUPT_TIME] * 10;
+ }
+
card->ext_csd.rel_param = ext_csd[EXT_CSD_WR_REL_PARAM];
+ card->ext_csd.rst_n_function = ext_csd[EXT_CSD_RST_N_FUNCTION];
+ }
+ card->ext_csd.raw_erased_mem_count = ext_csd[EXT_CSD_ERASED_MEM_CONT];
if (ext_csd[EXT_CSD_ERASED_MEM_CONT])
card->erased_byte = 0xFF;
else
card->erased_byte = 0x0;
+ /* eMMC v4.5 or later */
+ if (card->ext_csd.rev >= 6) {
+ card->ext_csd.feature_support |= MMC_DISCARD_FEATURE;
+
+ card->ext_csd.generic_cmd6_time = 10 *
+ ext_csd[EXT_CSD_GENERIC_CMD6_TIME];
+ card->ext_csd.power_off_longtime = 10 *
+ ext_csd[EXT_CSD_POWER_OFF_LONG_TIME];
+
+ card->ext_csd.cache_size =
+ ext_csd[EXT_CSD_CACHE_SIZE + 0] << 0 |
+ ext_csd[EXT_CSD_CACHE_SIZE + 1] << 8 |
+ ext_csd[EXT_CSD_CACHE_SIZE + 2] << 16 |
+ ext_csd[EXT_CSD_CACHE_SIZE + 3] << 24;
+ }
+
out:
return err;
}
@@ -530,6 +609,86 @@ static struct device_type mmc_type = {
};
/*
+ * Select the PowerClass for the current bus width
+ * If power class is defined for 4/8 bit bus in the
+ * extended CSD register, select it by executing the
+ * mmc_switch command.
+ */
+static int mmc_select_powerclass(struct mmc_card *card,
+ unsigned int bus_width, u8 *ext_csd)
+{
+ int err = 0;
+ unsigned int pwrclass_val;
+ unsigned int index = 0;
+ struct mmc_host *host;
+
+ BUG_ON(!card);
+
+ host = card->host;
+ BUG_ON(!host);
+
+ if (ext_csd == NULL)
+ return 0;
+
+ /* Power class selection is supported for versions >= 4.0 */
+ if (card->csd.mmca_vsn < CSD_SPEC_VER_4)
+ return 0;
+
+ /* Power class values are defined only for 4/8 bit bus */
+ if (bus_width == EXT_CSD_BUS_WIDTH_1)
+ return 0;
+
+ switch (1 << host->ios.vdd) {
+ case MMC_VDD_165_195:
+ if (host->ios.clock <= 26000000)
+ index = EXT_CSD_PWR_CL_26_195;
+ else if (host->ios.clock <= 52000000)
+ index = (bus_width <= EXT_CSD_BUS_WIDTH_8) ?
+ EXT_CSD_PWR_CL_52_195 :
+ EXT_CSD_PWR_CL_DDR_52_195;
+ else if (host->ios.clock <= 200000000)
+ index = EXT_CSD_PWR_CL_200_195;
+ break;
+ case MMC_VDD_32_33:
+ case MMC_VDD_33_34:
+ case MMC_VDD_34_35:
+ case MMC_VDD_35_36:
+ if (host->ios.clock <= 26000000)
+ index = EXT_CSD_PWR_CL_26_360;
+ else if (host->ios.clock <= 52000000)
+ index = (bus_width <= EXT_CSD_BUS_WIDTH_8) ?
+ EXT_CSD_PWR_CL_52_360 :
+ EXT_CSD_PWR_CL_DDR_52_360;
+ else if (host->ios.clock <= 200000000)
+ index = EXT_CSD_PWR_CL_200_360;
+ break;
+ default:
+ pr_warning("%s: Voltage range not supported "
+ "for power class.\n", mmc_hostname(host));
+ return -EINVAL;
+ }
+
+ pwrclass_val = ext_csd[index];
+
+ if (bus_width & (EXT_CSD_BUS_WIDTH_8 | EXT_CSD_DDR_BUS_WIDTH_8))
+ pwrclass_val = (pwrclass_val & EXT_CSD_PWR_CL_8BIT_MASK) >>
+ EXT_CSD_PWR_CL_8BIT_SHIFT;
+ else
+ pwrclass_val = (pwrclass_val & EXT_CSD_PWR_CL_4BIT_MASK) >>
+ EXT_CSD_PWR_CL_4BIT_SHIFT;
+
+ /* If the power class is different from the default value */
+ if (pwrclass_val > 0) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_POWER_CLASS,
+ pwrclass_val,
+ card->ext_csd.generic_cmd6_time);
+ }
+
+ return err;
+}
+
+/*
* Handle the detection and initialisation of a card.
*
* In the case of a resume, "oldcard" will contain the card
@@ -548,11 +707,16 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
BUG_ON(!host);
WARN_ON(!host->claimed);
+ /* Set correct bus mode for MMC before attempting init */
+ if (!mmc_host_is_spi(host))
+ mmc_set_bus_mode(host, MMC_BUSMODE_OPENDRAIN);
+
/*
* Since we're changing the OCR value, we seem to
* need to tell some cards to go back to the idle
* state. We wait 1ms to give cards time to
* respond.
+ * mmc_go_idle is needed for eMMC that are asleep
*/
mmc_go_idle(host);
@@ -668,7 +832,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
*/
if (card->ext_csd.enhanced_area_en) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_ERASE_GROUP_DEF, 1, 0);
+ EXT_CSD_ERASE_GROUP_DEF, 1,
+ card->ext_csd.generic_cmd6_time);
if (err && err != -EBADMSG)
goto free_card;
@@ -706,17 +871,35 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * If the host supports the power_off_notify capability then
+ * set the notification byte in the ext_csd register of device
+ */
+ if ((host->caps2 & MMC_CAP2_POWEROFF_NOTIFY) &&
+ (card->poweroff_notify_state == MMC_NO_POWER_NOTIFICATION)) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_POWER_OFF_NOTIFICATION,
+ EXT_CSD_POWER_ON,
+ card->ext_csd.generic_cmd6_time);
+ if (err && err != -EBADMSG)
+ goto free_card;
+ }
+
+ if (!err)
+ card->poweroff_notify_state = MMC_POWERED_ON;
+
+ /*
* Activate high speed (if supported)
*/
if ((card->ext_csd.hs_max_dtr != 0) &&
(host->caps & MMC_CAP_MMC_HIGHSPEED)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_HS_TIMING, 1, 0);
+ EXT_CSD_HS_TIMING, 1,
+ card->ext_csd.generic_cmd6_time);
if (err && err != -EBADMSG)
goto free_card;
if (err) {
- printk(KERN_WARNING "%s: switch to highspeed failed\n",
+ pr_warning("%s: switch to highspeed failed\n",
mmc_hostname(card->host));
err = 0;
} else {
@@ -726,6 +909,22 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * Enable HPI feature (if supported)
+ */
+ if (card->ext_csd.hpi) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_HPI_MGMT, 1, 0);
+ if (err && err != -EBADMSG)
+ goto free_card;
+ if (err) {
+ pr_warning("%s: Enabling HPI failed\n",
+ mmc_hostname(card->host));
+ err = 0;
+ } else
+ card->ext_csd.hpi_en = 1;
+ }
+
+ /*
* Compute bus speed.
*/
max_dtr = (unsigned int)-1;
@@ -780,10 +979,18 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
bus_width = bus_widths[idx];
if (bus_width == MMC_BUS_WIDTH_1)
ddr = 0; /* no DDR for 1-bit width */
+ err = mmc_select_powerclass(card, ext_csd_bits[idx][0],
+ ext_csd);
+ if (err)
+ pr_err("%s: power class selection to "
+ "bus width %d failed\n",
+ mmc_hostname(card->host),
+ 1 << bus_width);
+
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH,
ext_csd_bits[idx][0],
- 0);
+ card->ext_csd.generic_cmd6_time);
if (!err) {
mmc_set_bus_width(card->host, bus_width);
@@ -803,13 +1010,21 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
}
if (!err && ddr) {
+ err = mmc_select_powerclass(card, ext_csd_bits[idx][1],
+ ext_csd);
+ if (err)
+ pr_err("%s: power class selection to "
+ "bus width %d ddr %d failed\n",
+ mmc_hostname(card->host),
+ 1 << bus_width, ddr);
+
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_BUS_WIDTH,
ext_csd_bits[idx][1],
- 0);
+ card->ext_csd.generic_cmd6_time);
}
if (err) {
- printk(KERN_WARNING "%s: switch to bus width %d ddr %d "
+ pr_warning("%s: switch to bus width %d ddr %d "
"failed\n", mmc_hostname(card->host),
1 << bus_width, ddr);
goto free_card;
@@ -840,6 +1055,23 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
}
}
+ /*
+ * If cache size is higher than 0, this indicates
+ * the existence of cache and it can be turned on.
+ */
+ if ((host->caps2 & MMC_CAP2_CACHE_CTRL) &&
+ card->ext_csd.cache_size > 0) {
+ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+ EXT_CSD_CACHE_CTRL, 1, 0);
+ if (err && err != -EBADMSG)
+ goto free_card;
+
+ /*
+ * Only if no error, cache is turned on successfully.
+ */
+ card->ext_csd.cache_ctrl = err ? 0 : 1;
+ }
+
if (!oldcard)
host->card = card;
@@ -891,6 +1123,7 @@ static void mmc_detect(struct mmc_host *host)
mmc_claim_host(host);
mmc_detach_bus(host);
+ mmc_power_off(host);
mmc_release_host(host);
}
}
@@ -900,16 +1133,20 @@ static void mmc_detect(struct mmc_host *host)
*/
static int mmc_suspend(struct mmc_host *host)
{
+ int err = 0;
+
BUG_ON(!host);
BUG_ON(!host->card);
mmc_claim_host(host);
- if (!mmc_host_is_spi(host))
+ if (mmc_card_can_sleep(host))
+ err = mmc_card_sleep(host);
+ else if (!mmc_host_is_spi(host))
mmc_deselect_cards(host);
host->card->state &= ~MMC_STATE_HIGHSPEED;
mmc_release_host(host);
- return 0;
+ return err;
}
/*
@@ -1016,6 +1253,10 @@ int mmc_attach_mmc(struct mmc_host *host)
BUG_ON(!host);
WARN_ON(!host->claimed);
+ /* Set correct bus mode for MMC before attempting attach */
+ if (!mmc_host_is_spi(host))
+ mmc_set_bus_mode(host, MMC_BUSMODE_OPENDRAIN);
+
err = mmc_send_op_cond(host, 0, &ocr);
if (err)
return err;
@@ -1038,7 +1279,7 @@ int mmc_attach_mmc(struct mmc_host *host)
* support.
*/
if (ocr & 0x7F) {
- printk(KERN_WARNING "%s: card claims to support voltages "
+ pr_warning("%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
@@ -1077,7 +1318,7 @@ remove_card:
err:
mmc_detach_bus(host);
- printk(KERN_ERR "%s: error %d whilst initialising MMC card\n",
+ pr_err("%s: error %d whilst initialising MMC card\n",
mmc_hostname(host), err);
return err;
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 770c3d06f5dc..007863eea4fb 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -233,7 +233,7 @@ static int
mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
u32 opcode, void *buf, unsigned len)
{
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
struct scatterlist sg;
@@ -414,7 +414,7 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
return -EBADMSG;
} else {
if (status & 0xFDFFA000)
- printk(KERN_WARNING "%s: unexpected status %#x after "
+ pr_warning("%s: unexpected status %#x after "
"switch", mmc_hostname(card->host), status);
if (status & R1_SWITCH_ERROR)
return -EBADMSG;
@@ -454,7 +454,7 @@ static int
mmc_send_bus_test(struct mmc_card *card, struct mmc_host *host, u8 opcode,
u8 len)
{
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
struct scatterlist sg;
@@ -476,7 +476,7 @@ mmc_send_bus_test(struct mmc_card *card, struct mmc_host *host, u8 opcode,
else if (len == 4)
test_buf = testdata_4bit;
else {
- printk(KERN_ERR "%s: Invalid bus_width %d\n",
+ pr_err("%s: Invalid bus_width %d\n",
mmc_hostname(host), len);
kfree(data_buf);
return -EINVAL;
@@ -547,3 +547,34 @@ int mmc_bus_test(struct mmc_card *card, u8 bus_width)
err = mmc_send_bus_test(card, card->host, MMC_BUS_TEST_R, width);
return err;
}
+
+int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status)
+{
+ struct mmc_command cmd = {0};
+ unsigned int opcode;
+ unsigned int flags;
+ int err;
+
+ opcode = card->ext_csd.hpi_cmd;
+ if (opcode == MMC_STOP_TRANSMISSION)
+ flags = MMC_RSP_R1 | MMC_CMD_AC;
+ else if (opcode == MMC_SEND_STATUS)
+ flags = MMC_RSP_R1 | MMC_CMD_AC;
+
+ cmd.opcode = opcode;
+ cmd.arg = card->rca << 16 | 1;
+ cmd.flags = flags;
+ cmd.cmd_timeout_ms = card->ext_csd.out_of_int_time;
+
+ err = mmc_wait_for_cmd(card->host, &cmd, 0);
+ if (err) {
+ pr_warn("%s: error %d interrupting operation. "
+ "HPI command response %#x\n", mmc_hostname(card->host),
+ err, cmd.resp[0]);
+ return err;
+ }
+ if (status)
+ *status = cmd.resp[0];
+
+ return 0;
+}
diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h
index 9276946fa5b7..3dd8941c2980 100644
--- a/drivers/mmc/core/mmc_ops.h
+++ b/drivers/mmc/core/mmc_ops.h
@@ -26,6 +26,7 @@ int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp);
int mmc_spi_set_crc(struct mmc_host *host, int use_crc);
int mmc_card_sleepawake(struct mmc_host *host, int sleep);
int mmc_bus_test(struct mmc_card *card, u8 bus_width);
+int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status);
#endif
diff --git a/drivers/mmc/core/quirks.c b/drivers/mmc/core/quirks.c
index 3a596217029e..6c3cf98a62eb 100644
--- a/drivers/mmc/core/quirks.c
+++ b/drivers/mmc/core/quirks.c
@@ -21,6 +21,14 @@
#define SDIO_DEVICE_ID_TI_WL1271 0x4076
#endif
+#ifndef SDIO_VENDOR_ID_STE
+#define SDIO_VENDOR_ID_STE 0x0020
+#endif
+
+#ifndef SDIO_DEVICE_ID_STE_CW1200
+#define SDIO_DEVICE_ID_STE_CW1200 0x2280
+#endif
+
/*
* This hook just adds a quirk for all sdio devices
*/
@@ -46,6 +54,9 @@ static const struct mmc_fixup mmc_fixup_methods[] = {
SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,
add_quirk, MMC_QUIRK_DISABLE_CD),
+ SDIO_FIXUP(SDIO_VENDOR_ID_STE, SDIO_DEVICE_ID_STE_CW1200,
+ add_quirk, MMC_QUIRK_BROKEN_BYTE_MODE_512),
+
END_FIXUP
};
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 0370e03e3142..a230e7f9d77a 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -163,7 +163,7 @@ static int mmc_decode_csd(struct mmc_card *card)
csd->erase_size = 1;
break;
default:
- printk(KERN_ERR "%s: unrecognised CSD structure version %d\n",
+ pr_err("%s: unrecognised CSD structure version %d\n",
mmc_hostname(card->host), csd_struct);
return -EINVAL;
}
@@ -187,7 +187,7 @@ static int mmc_decode_scr(struct mmc_card *card)
scr_struct = UNSTUFF_BITS(resp, 60, 4);
if (scr_struct != 0) {
- printk(KERN_ERR "%s: unrecognised SCR structure version %d\n",
+ pr_err("%s: unrecognised SCR structure version %d\n",
mmc_hostname(card->host), scr_struct);
return -EINVAL;
}
@@ -218,7 +218,7 @@ static int mmc_read_ssr(struct mmc_card *card)
u32 *ssr;
if (!(card->csd.cmdclass & CCC_APP_SPEC)) {
- printk(KERN_WARNING "%s: card lacks mandatory SD Status "
+ pr_warning("%s: card lacks mandatory SD Status "
"function.\n", mmc_hostname(card->host));
return 0;
}
@@ -229,7 +229,7 @@ static int mmc_read_ssr(struct mmc_card *card)
err = mmc_app_sd_status(card, ssr);
if (err) {
- printk(KERN_WARNING "%s: problem reading SD Status "
+ pr_warning("%s: problem reading SD Status "
"register.\n", mmc_hostname(card->host));
err = 0;
goto out;
@@ -253,7 +253,7 @@ static int mmc_read_ssr(struct mmc_card *card)
card->ssr.erase_offset = eo * 1000;
}
} else {
- printk(KERN_WARNING "%s: SD Status: Invalid Allocation Unit "
+ pr_warning("%s: SD Status: Invalid Allocation Unit "
"size.\n", mmc_hostname(card->host));
}
out:
@@ -273,7 +273,7 @@ static int mmc_read_switch(struct mmc_card *card)
return 0;
if (!(card->csd.cmdclass & CCC_SWITCH)) {
- printk(KERN_WARNING "%s: card lacks mandatory switch "
+ pr_warning("%s: card lacks mandatory switch "
"function, performance might suffer.\n",
mmc_hostname(card->host));
return 0;
@@ -283,7 +283,7 @@ static int mmc_read_switch(struct mmc_card *card)
status = kmalloc(64, GFP_KERNEL);
if (!status) {
- printk(KERN_ERR "%s: could not allocate a buffer for "
+ pr_err("%s: could not allocate a buffer for "
"switch capabilities.\n",
mmc_hostname(card->host));
return -ENOMEM;
@@ -299,13 +299,16 @@ static int mmc_read_switch(struct mmc_card *card)
if (err != -EINVAL && err != -ENOSYS && err != -EFAULT)
goto out;
- printk(KERN_WARNING "%s: problem reading Bus Speed modes.\n",
+ pr_warning("%s: problem reading Bus Speed modes.\n",
mmc_hostname(card->host));
err = 0;
goto out;
}
+ if (status[13] & UHS_SDR50_BUS_SPEED)
+ card->sw_caps.hs_max_dtr = 50000000;
+
if (card->scr.sda_spec3) {
card->sw_caps.sd3_bus_mode = status[13];
@@ -319,7 +322,7 @@ static int mmc_read_switch(struct mmc_card *card)
if (err != -EINVAL && err != -ENOSYS && err != -EFAULT)
goto out;
- printk(KERN_WARNING "%s: problem reading "
+ pr_warning("%s: problem reading "
"Driver Strength.\n",
mmc_hostname(card->host));
err = 0;
@@ -339,7 +342,7 @@ static int mmc_read_switch(struct mmc_card *card)
if (err != -EINVAL && err != -ENOSYS && err != -EFAULT)
goto out;
- printk(KERN_WARNING "%s: problem reading "
+ pr_warning("%s: problem reading "
"Current Limit.\n",
mmc_hostname(card->host));
err = 0;
@@ -348,9 +351,6 @@ static int mmc_read_switch(struct mmc_card *card)
}
card->sw_caps.sd3_curr_limit = status[7];
- } else {
- if (status[13] & 0x02)
- card->sw_caps.hs_max_dtr = 50000000;
}
out:
@@ -383,7 +383,7 @@ int mmc_sd_switch_hs(struct mmc_card *card)
status = kmalloc(64, GFP_KERNEL);
if (!status) {
- printk(KERN_ERR "%s: could not allocate a buffer for "
+ pr_err("%s: could not allocate a buffer for "
"switch capabilities.\n", mmc_hostname(card->host));
return -ENOMEM;
}
@@ -393,7 +393,7 @@ int mmc_sd_switch_hs(struct mmc_card *card)
goto out;
if ((status[16] & 0xF) != 1) {
- printk(KERN_WARNING "%s: Problem switching card "
+ pr_warning("%s: Problem switching card "
"into high-speed mode!\n",
mmc_hostname(card->host));
err = 0;
@@ -459,7 +459,7 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
return err;
if ((status[15] & 0xF) != drive_strength) {
- printk(KERN_WARNING "%s: Problem setting drive strength!\n",
+ pr_warning("%s: Problem setting drive strength!\n",
mmc_hostname(card->host));
return 0;
}
@@ -538,7 +538,7 @@ static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status)
return err;
if ((status[16] & 0xF) != card->sd_bus_speed)
- printk(KERN_WARNING "%s: Problem setting bus speed mode!\n",
+ pr_warning("%s: Problem setting bus speed mode!\n",
mmc_hostname(card->host));
else {
mmc_set_timing(card->host, timing);
@@ -600,7 +600,7 @@ static int sd_set_current_limit(struct mmc_card *card, u8 *status)
return err;
if (((status[15] >> 4) & 0x0F) != current_limit)
- printk(KERN_WARNING "%s: Problem setting current limit!\n",
+ pr_warning("%s: Problem setting current limit!\n",
mmc_hostname(card->host));
return 0;
@@ -622,7 +622,7 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
status = kmalloc(64, GFP_KERNEL);
if (!status) {
- printk(KERN_ERR "%s: could not allocate a buffer for "
+ pr_err("%s: could not allocate a buffer for "
"switch capabilities.\n", mmc_hostname(card->host));
return -ENOMEM;
}
@@ -852,7 +852,7 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
ro = host->ops->get_ro(host);
if (ro < 0) {
- printk(KERN_WARNING "%s: host does not "
+ pr_warning("%s: host does not "
"support reading read-only "
"switch. assuming write-enable.\n",
mmc_hostname(host));
@@ -929,8 +929,6 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
err = mmc_send_relative_addr(host, &card->rca);
if (err)
return err;
-
- mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
}
if (!oldcard) {
@@ -1043,6 +1041,7 @@ static void mmc_sd_detect(struct mmc_host *host)
mmc_claim_host(host);
mmc_detach_bus(host);
+ mmc_power_off(host);
mmc_release_host(host);
}
}
@@ -1167,7 +1166,7 @@ int mmc_attach_sd(struct mmc_host *host)
* support.
*/
if (ocr & 0x7F) {
- printk(KERN_WARNING "%s: card claims to support voltages "
+ pr_warning("%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
@@ -1175,7 +1174,7 @@ int mmc_attach_sd(struct mmc_host *host)
if ((ocr & MMC_VDD_165_195) &&
!(host->ocr_avail_sd & MMC_VDD_165_195)) {
- printk(KERN_WARNING "%s: SD card claims to support the "
+ pr_warning("%s: SD card claims to support the "
"incompletely defined 'low voltage range'. This "
"will be ignored.\n", mmc_hostname(host));
ocr &= ~MMC_VDD_165_195;
@@ -1214,7 +1213,7 @@ remove_card:
err:
mmc_detach_bus(host);
- printk(KERN_ERR "%s: error %d whilst initialising SD card\n",
+ pr_err("%s: error %d whilst initialising SD card\n",
mmc_hostname(host), err);
return err;
diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 021fed153804..46a785419fab 100644
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -67,7 +67,7 @@ EXPORT_SYMBOL_GPL(mmc_app_cmd);
int mmc_wait_for_app_cmd(struct mmc_host *host, struct mmc_card *card,
struct mmc_command *cmd, int retries)
{
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
int i, err;
@@ -244,7 +244,7 @@ int mmc_send_relative_addr(struct mmc_host *host, unsigned int *rca)
int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
{
int err;
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
struct scatterlist sg;
@@ -303,7 +303,7 @@ int mmc_app_send_scr(struct mmc_card *card, u32 *scr)
int mmc_sd_switch(struct mmc_card *card, int mode, int group,
u8 value, u8 *resp)
{
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
struct scatterlist sg;
@@ -348,7 +348,7 @@ int mmc_sd_switch(struct mmc_card *card, int mode, int group,
int mmc_app_sd_status(struct mmc_card *card, void *ssr)
{
int err;
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
struct scatterlist sg;
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 262fff019177..3ab565e32a6a 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -111,8 +111,8 @@ static int sdio_read_cccr(struct mmc_card *card)
cccr_vsn = data & 0x0f;
- if (cccr_vsn > SDIO_CCCR_REV_1_20) {
- printk(KERN_ERR "%s: unrecognised CCCR structure version %d\n",
+ if (cccr_vsn > SDIO_CCCR_REV_3_00) {
+ pr_err("%s: unrecognised CCCR structure version %d\n",
mmc_hostname(card->host), cccr_vsn);
return -EINVAL;
}
@@ -408,8 +408,6 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
*/
if (oldcard)
oldcard->rca = card->rca;
-
- mmc_set_bus_mode(host, MMC_BUSMODE_PUSHPULL);
}
/*
@@ -597,6 +595,7 @@ out:
mmc_claim_host(host);
mmc_detach_bus(host);
+ mmc_power_off(host);
mmc_release_host(host);
}
}
@@ -778,7 +777,7 @@ int mmc_attach_sdio(struct mmc_host *host)
* support.
*/
if (ocr & 0x7F) {
- printk(KERN_WARNING "%s: card claims to support voltages "
+ pr_warning("%s: card claims to support voltages "
"below the defined range. These will be ignored.\n",
mmc_hostname(host));
ocr &= ~0x7F;
@@ -875,7 +874,7 @@ remove:
err:
mmc_detach_bus(host);
- printk(KERN_ERR "%s: error %d whilst initialising SDIO card\n",
+ pr_err("%s: error %d whilst initialising SDIO card\n",
mmc_hostname(host), err);
return err;
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index e4e6822d09e3..c643b2f78bf1 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -173,7 +173,7 @@ static int sdio_bus_remove(struct device *dev)
drv->remove(func);
if (func->irq_handler) {
- printk(KERN_WARNING "WARNING: driver %s did not remove "
+ pr_warning("WARNING: driver %s did not remove "
"its interrupt handler!\n", drv->name);
sdio_claim_host(func);
sdio_release_irq(func);
diff --git a/drivers/mmc/core/sdio_cis.c b/drivers/mmc/core/sdio_cis.c
index 541bdb89e0c5..f1c7ed8f4d85 100644
--- a/drivers/mmc/core/sdio_cis.c
+++ b/drivers/mmc/core/sdio_cis.c
@@ -132,7 +132,7 @@ static int cis_tpl_parse(struct mmc_card *card, struct sdio_func *func,
ret = -EINVAL;
}
if (ret && ret != -EILSEQ && ret != -ENOENT) {
- printk(KERN_ERR "%s: bad %s tuple 0x%02x (%u bytes)\n",
+ pr_err("%s: bad %s tuple 0x%02x (%u bytes)\n",
mmc_hostname(card->host), tpl_descr, code, size);
}
} else {
@@ -313,7 +313,7 @@ static int sdio_read_cis(struct mmc_card *card, struct sdio_func *func)
if (ret == -ENOENT) {
/* warn about unknown tuples */
- printk(KERN_WARNING "%s: queuing unknown"
+ pr_warning("%s: queuing unknown"
" CIS tuple 0x%02x (%u bytes)\n",
mmc_hostname(card->host),
tpl_code, tpl_link);
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index 03ead028d2ce..b644dd59c16e 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -45,7 +45,7 @@ static int process_sdio_pending_irqs(struct mmc_card *card)
ret = mmc_io_rw_direct(card, 0, 0, SDIO_CCCR_INTx, 0, &pending);
if (ret) {
- printk(KERN_DEBUG "%s: error %d reading SDIO_CCCR_INTx\n",
+ pr_debug("%s: error %d reading SDIO_CCCR_INTx\n",
mmc_card_id(card), ret);
return ret;
}
@@ -55,7 +55,7 @@ static int process_sdio_pending_irqs(struct mmc_card *card)
if (pending & (1 << i)) {
func = card->sdio_func[i - 1];
if (!func) {
- printk(KERN_WARNING "%s: pending IRQ for "
+ pr_warning("%s: pending IRQ for "
"non-existent function\n",
mmc_card_id(card));
ret = -EINVAL;
@@ -63,7 +63,7 @@ static int process_sdio_pending_irqs(struct mmc_card *card)
func->irq_handler(func);
count++;
} else {
- printk(KERN_WARNING "%s: pending IRQ with no handler\n",
+ pr_warning("%s: pending IRQ with no handler\n",
sdio_func_id(func));
ret = -EINVAL;
}
diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c
index f087d876c573..b0517cc06200 100644
--- a/drivers/mmc/core/sdio_ops.c
+++ b/drivers/mmc/core/sdio_ops.c
@@ -121,7 +121,7 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn,
int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz)
{
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
struct mmc_command cmd = {0};
struct mmc_data data = {0};
struct scatterlist sg;
@@ -144,8 +144,11 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn,
cmd.arg |= fn << 28;
cmd.arg |= incr_addr ? 0x04000000 : 0x00000000;
cmd.arg |= addr << 9;
- if (blocks == 1 && blksz <= 512)
- cmd.arg |= (blksz == 512) ? 0 : blksz; /* byte mode */
+ if (blocks == 1 && blksz < 512)
+ cmd.arg |= blksz; /* byte mode */
+ else if (blocks == 1 && blksz == 512 &&
+ !(mmc_card_broken_byte_mode_512(card)))
+ cmd.arg |= 0; /* byte mode, 0==512 */
else
cmd.arg |= 0x08000000 | blocks; /* block mode */
cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 8c87096531e9..87d5067ba629 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -130,13 +130,13 @@ config MMC_SDHCI_CNS3XXX
If unsure, say N.
config MMC_SDHCI_ESDHC_IMX
- tristate "SDHCI platform support for the Freescale eSDHC i.MX controller"
- depends on ARCH_MX25 || ARCH_MX35 || ARCH_MX5
+ tristate "SDHCI support for the Freescale eSDHC/uSDHC i.MX controller"
+ depends on ARCH_MXC
depends on MMC_SDHCI_PLTFM
select MMC_SDHCI_IO_ACCESSORS
help
- This selects the Freescale eSDHC controller support on the platform
- bus, found on platforms like mx35/51.
+ This selects the Freescale eSDHC/uSDHC controller support
+ found on i.MX25, i.MX35 i.MX5x and i.MX6x.
If you have a controller with this interface, say Y or M here.
@@ -326,11 +326,11 @@ config MMC_MSM
support for SDIO devices.
config MMC_MXC
- tristate "Freescale i.MX2/3 Multimedia Card Interface support"
- depends on MACH_MX21 || MACH_MX27 || ARCH_MX31
+ tristate "Freescale i.MX21/27/31 Multimedia Card Interface support"
+ depends on ARCH_MXC
help
- This selects the Freescale i.MX2/3 Multimedia card Interface.
- If you have a i.MX platform with a Multimedia Card slot,
+ This selects the Freescale i.MX21, i.MX27 and i.MX31 Multimedia card
+ Interface. If you have a i.MX platform with a Multimedia Card slot,
say Y or M here.
If unsure, say N.
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index a4aa3af86fed..a8b4d2aa18e5 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -869,7 +869,11 @@ static irqreturn_t at91_mci_irq(int irq, void *devid)
static irqreturn_t at91_mmc_det_irq(int irq, void *_host)
{
struct at91mci_host *host = _host;
- int present = !gpio_get_value(irq_to_gpio(irq));
+ int present;
+
+ /* entering this ISR means that we have configured det_pin:
+ * we can use its value in board structure */
+ present = !gpio_get_value(host->board->det_pin);
/*
* we expect this irq on both insert and remove,
diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h
index fc8a0fe7c5c5..000b3ad0f5ca 100644
--- a/drivers/mmc/host/atmel-mci-regs.h
+++ b/drivers/mmc/host/atmel-mci-regs.h
@@ -17,112 +17,126 @@
#define __DRIVERS_MMC_ATMEL_MCI_H__
/* MCI Register Definitions */
-#define MCI_CR 0x0000 /* Control */
-# define MCI_CR_MCIEN ( 1 << 0) /* MCI Enable */
-# define MCI_CR_MCIDIS ( 1 << 1) /* MCI Disable */
-# define MCI_CR_PWSEN ( 1 << 2) /* Power Save Enable */
-# define MCI_CR_PWSDIS ( 1 << 3) /* Power Save Disable */
-# define MCI_CR_SWRST ( 1 << 7) /* Software Reset */
-#define MCI_MR 0x0004 /* Mode */
-# define MCI_MR_CLKDIV(x) ((x) << 0) /* Clock Divider */
-# define MCI_MR_PWSDIV(x) ((x) << 8) /* Power Saving Divider */
-# define MCI_MR_RDPROOF ( 1 << 11) /* Read Proof */
-# define MCI_MR_WRPROOF ( 1 << 12) /* Write Proof */
-# define MCI_MR_PDCFBYTE ( 1 << 13) /* Force Byte Transfer */
-# define MCI_MR_PDCPADV ( 1 << 14) /* Padding Value */
-# define MCI_MR_PDCMODE ( 1 << 15) /* PDC-oriented Mode */
-#define MCI_DTOR 0x0008 /* Data Timeout */
-# define MCI_DTOCYC(x) ((x) << 0) /* Data Timeout Cycles */
-# define MCI_DTOMUL(x) ((x) << 4) /* Data Timeout Multiplier */
-#define MCI_SDCR 0x000c /* SD Card / SDIO */
-# define MCI_SDCSEL_SLOT_A ( 0 << 0) /* Select SD slot A */
-# define MCI_SDCSEL_SLOT_B ( 1 << 0) /* Select SD slot A */
-# define MCI_SDCSEL_MASK ( 3 << 0)
-# define MCI_SDCBUS_1BIT ( 0 << 6) /* 1-bit data bus */
-# define MCI_SDCBUS_4BIT ( 2 << 6) /* 4-bit data bus */
-# define MCI_SDCBUS_8BIT ( 3 << 6) /* 8-bit data bus[2] */
-# define MCI_SDCBUS_MASK ( 3 << 6)
-#define MCI_ARGR 0x0010 /* Command Argument */
-#define MCI_CMDR 0x0014 /* Command */
-# define MCI_CMDR_CMDNB(x) ((x) << 0) /* Command Opcode */
-# define MCI_CMDR_RSPTYP_NONE ( 0 << 6) /* No response */
-# define MCI_CMDR_RSPTYP_48BIT ( 1 << 6) /* 48-bit response */
-# define MCI_CMDR_RSPTYP_136BIT ( 2 << 6) /* 136-bit response */
-# define MCI_CMDR_SPCMD_INIT ( 1 << 8) /* Initialization command */
-# define MCI_CMDR_SPCMD_SYNC ( 2 << 8) /* Synchronized command */
-# define MCI_CMDR_SPCMD_INT ( 4 << 8) /* Interrupt command */
-# define MCI_CMDR_SPCMD_INTRESP ( 5 << 8) /* Interrupt response */
-# define MCI_CMDR_OPDCMD ( 1 << 11) /* Open Drain */
-# define MCI_CMDR_MAXLAT_5CYC ( 0 << 12) /* Max latency 5 cycles */
-# define MCI_CMDR_MAXLAT_64CYC ( 1 << 12) /* Max latency 64 cycles */
-# define MCI_CMDR_START_XFER ( 1 << 16) /* Start data transfer */
-# define MCI_CMDR_STOP_XFER ( 2 << 16) /* Stop data transfer */
-# define MCI_CMDR_TRDIR_WRITE ( 0 << 18) /* Write data */
-# define MCI_CMDR_TRDIR_READ ( 1 << 18) /* Read data */
-# define MCI_CMDR_BLOCK ( 0 << 19) /* Single-block transfer */
-# define MCI_CMDR_MULTI_BLOCK ( 1 << 19) /* Multi-block transfer */
-# define MCI_CMDR_STREAM ( 2 << 19) /* MMC Stream transfer */
-# define MCI_CMDR_SDIO_BYTE ( 4 << 19) /* SDIO Byte transfer */
-# define MCI_CMDR_SDIO_BLOCK ( 5 << 19) /* SDIO Block transfer */
-# define MCI_CMDR_SDIO_SUSPEND ( 1 << 24) /* SDIO Suspend Command */
-# define MCI_CMDR_SDIO_RESUME ( 2 << 24) /* SDIO Resume Command */
-#define MCI_BLKR 0x0018 /* Block */
-# define MCI_BCNT(x) ((x) << 0) /* Data Block Count */
-# define MCI_BLKLEN(x) ((x) << 16) /* Data Block Length */
-#define MCI_CSTOR 0x001c /* Completion Signal Timeout[2] */
-# define MCI_CSTOCYC(x) ((x) << 0) /* CST cycles */
-# define MCI_CSTOMUL(x) ((x) << 4) /* CST multiplier */
-#define MCI_RSPR 0x0020 /* Response 0 */
-#define MCI_RSPR1 0x0024 /* Response 1 */
-#define MCI_RSPR2 0x0028 /* Response 2 */
-#define MCI_RSPR3 0x002c /* Response 3 */
-#define MCI_RDR 0x0030 /* Receive Data */
-#define MCI_TDR 0x0034 /* Transmit Data */
-#define MCI_SR 0x0040 /* Status */
-#define MCI_IER 0x0044 /* Interrupt Enable */
-#define MCI_IDR 0x0048 /* Interrupt Disable */
-#define MCI_IMR 0x004c /* Interrupt Mask */
-# define MCI_CMDRDY ( 1 << 0) /* Command Ready */
-# define MCI_RXRDY ( 1 << 1) /* Receiver Ready */
-# define MCI_TXRDY ( 1 << 2) /* Transmitter Ready */
-# define MCI_BLKE ( 1 << 3) /* Data Block Ended */
-# define MCI_DTIP ( 1 << 4) /* Data Transfer In Progress */
-# define MCI_NOTBUSY ( 1 << 5) /* Data Not Busy */
-# define MCI_SDIOIRQA ( 1 << 8) /* SDIO IRQ in slot A */
-# define MCI_SDIOIRQB ( 1 << 9) /* SDIO IRQ in slot B */
-# define MCI_RINDE ( 1 << 16) /* Response Index Error */
-# define MCI_RDIRE ( 1 << 17) /* Response Direction Error */
-# define MCI_RCRCE ( 1 << 18) /* Response CRC Error */
-# define MCI_RENDE ( 1 << 19) /* Response End Bit Error */
-# define MCI_RTOE ( 1 << 20) /* Response Time-Out Error */
-# define MCI_DCRCE ( 1 << 21) /* Data CRC Error */
-# define MCI_DTOE ( 1 << 22) /* Data Time-Out Error */
-# define MCI_OVRE ( 1 << 30) /* RX Overrun Error */
-# define MCI_UNRE ( 1 << 31) /* TX Underrun Error */
-#define MCI_DMA 0x0050 /* DMA Configuration[2] */
-# define MCI_DMA_OFFSET(x) ((x) << 0) /* DMA Write Buffer Offset */
-# define MCI_DMA_CHKSIZE(x) ((x) << 4) /* DMA Channel Read and Write Chunk Size */
-# define MCI_DMAEN ( 1 << 8) /* DMA Hardware Handshaking Enable */
-#define MCI_CFG 0x0054 /* Configuration[2] */
-# define MCI_CFG_FIFOMODE_1DATA ( 1 << 0) /* MCI Internal FIFO control mode */
-# define MCI_CFG_FERRCTRL_COR ( 1 << 4) /* Flow Error flag reset control mode */
-# define MCI_CFG_HSMODE ( 1 << 8) /* High Speed Mode */
-# define MCI_CFG_LSYNC ( 1 << 12) /* Synchronize on the last block */
-#define MCI_WPMR 0x00e4 /* Write Protection Mode[2] */
-# define MCI_WP_EN ( 1 << 0) /* WP Enable */
-# define MCI_WP_KEY (0x4d4349 << 8) /* WP Key */
-#define MCI_WPSR 0x00e8 /* Write Protection Status[2] */
-# define MCI_GET_WP_VS(x) ((x) & 0x0f)
-# define MCI_GET_WP_VSRC(x) (((x) >> 8) & 0xffff)
-#define MCI_FIFO_APERTURE 0x0200 /* FIFO Aperture[2] */
+#define ATMCI_CR 0x0000 /* Control */
+# define ATMCI_CR_MCIEN ( 1 << 0) /* MCI Enable */
+# define ATMCI_CR_MCIDIS ( 1 << 1) /* MCI Disable */
+# define ATMCI_CR_PWSEN ( 1 << 2) /* Power Save Enable */
+# define ATMCI_CR_PWSDIS ( 1 << 3) /* Power Save Disable */
+# define ATMCI_CR_SWRST ( 1 << 7) /* Software Reset */
+#define ATMCI_MR 0x0004 /* Mode */
+# define ATMCI_MR_CLKDIV(x) ((x) << 0) /* Clock Divider */
+# define ATMCI_MR_PWSDIV(x) ((x) << 8) /* Power Saving Divider */
+# define ATMCI_MR_RDPROOF ( 1 << 11) /* Read Proof */
+# define ATMCI_MR_WRPROOF ( 1 << 12) /* Write Proof */
+# define ATMCI_MR_PDCFBYTE ( 1 << 13) /* Force Byte Transfer */
+# define ATMCI_MR_PDCPADV ( 1 << 14) /* Padding Value */
+# define ATMCI_MR_PDCMODE ( 1 << 15) /* PDC-oriented Mode */
+#define ATMCI_DTOR 0x0008 /* Data Timeout */
+# define ATMCI_DTOCYC(x) ((x) << 0) /* Data Timeout Cycles */
+# define ATMCI_DTOMUL(x) ((x) << 4) /* Data Timeout Multiplier */
+#define ATMCI_SDCR 0x000c /* SD Card / SDIO */
+# define ATMCI_SDCSEL_SLOT_A ( 0 << 0) /* Select SD slot A */
+# define ATMCI_SDCSEL_SLOT_B ( 1 << 0) /* Select SD slot A */
+# define ATMCI_SDCSEL_MASK ( 3 << 0)
+# define ATMCI_SDCBUS_1BIT ( 0 << 6) /* 1-bit data bus */
+# define ATMCI_SDCBUS_4BIT ( 2 << 6) /* 4-bit data bus */
+# define ATMCI_SDCBUS_8BIT ( 3 << 6) /* 8-bit data bus[2] */
+# define ATMCI_SDCBUS_MASK ( 3 << 6)
+#define ATMCI_ARGR 0x0010 /* Command Argument */
+#define ATMCI_CMDR 0x0014 /* Command */
+# define ATMCI_CMDR_CMDNB(x) ((x) << 0) /* Command Opcode */
+# define ATMCI_CMDR_RSPTYP_NONE ( 0 << 6) /* No response */
+# define ATMCI_CMDR_RSPTYP_48BIT ( 1 << 6) /* 48-bit response */
+# define ATMCI_CMDR_RSPTYP_136BIT ( 2 << 6) /* 136-bit response */
+# define ATMCI_CMDR_SPCMD_INIT ( 1 << 8) /* Initialization command */
+# define ATMCI_CMDR_SPCMD_SYNC ( 2 << 8) /* Synchronized command */
+# define ATMCI_CMDR_SPCMD_INT ( 4 << 8) /* Interrupt command */
+# define ATMCI_CMDR_SPCMD_INTRESP ( 5 << 8) /* Interrupt response */
+# define ATMCI_CMDR_OPDCMD ( 1 << 11) /* Open Drain */
+# define ATMCI_CMDR_MAXLAT_5CYC ( 0 << 12) /* Max latency 5 cycles */
+# define ATMCI_CMDR_MAXLAT_64CYC ( 1 << 12) /* Max latency 64 cycles */
+# define ATMCI_CMDR_START_XFER ( 1 << 16) /* Start data transfer */
+# define ATMCI_CMDR_STOP_XFER ( 2 << 16) /* Stop data transfer */
+# define ATMCI_CMDR_TRDIR_WRITE ( 0 << 18) /* Write data */
+# define ATMCI_CMDR_TRDIR_READ ( 1 << 18) /* Read data */
+# define ATMCI_CMDR_BLOCK ( 0 << 19) /* Single-block transfer */
+# define ATMCI_CMDR_MULTI_BLOCK ( 1 << 19) /* Multi-block transfer */
+# define ATMCI_CMDR_STREAM ( 2 << 19) /* MMC Stream transfer */
+# define ATMCI_CMDR_SDIO_BYTE ( 4 << 19) /* SDIO Byte transfer */
+# define ATMCI_CMDR_SDIO_BLOCK ( 5 << 19) /* SDIO Block transfer */
+# define ATMCI_CMDR_SDIO_SUSPEND ( 1 << 24) /* SDIO Suspend Command */
+# define ATMCI_CMDR_SDIO_RESUME ( 2 << 24) /* SDIO Resume Command */
+#define ATMCI_BLKR 0x0018 /* Block */
+# define ATMCI_BCNT(x) ((x) << 0) /* Data Block Count */
+# define ATMCI_BLKLEN(x) ((x) << 16) /* Data Block Length */
+#define ATMCI_CSTOR 0x001c /* Completion Signal Timeout[2] */
+# define ATMCI_CSTOCYC(x) ((x) << 0) /* CST cycles */
+# define ATMCI_CSTOMUL(x) ((x) << 4) /* CST multiplier */
+#define ATMCI_RSPR 0x0020 /* Response 0 */
+#define ATMCI_RSPR1 0x0024 /* Response 1 */
+#define ATMCI_RSPR2 0x0028 /* Response 2 */
+#define ATMCI_RSPR3 0x002c /* Response 3 */
+#define ATMCI_RDR 0x0030 /* Receive Data */
+#define ATMCI_TDR 0x0034 /* Transmit Data */
+#define ATMCI_SR 0x0040 /* Status */
+#define ATMCI_IER 0x0044 /* Interrupt Enable */
+#define ATMCI_IDR 0x0048 /* Interrupt Disable */
+#define ATMCI_IMR 0x004c /* Interrupt Mask */
+# define ATMCI_CMDRDY ( 1 << 0) /* Command Ready */
+# define ATMCI_RXRDY ( 1 << 1) /* Receiver Ready */
+# define ATMCI_TXRDY ( 1 << 2) /* Transmitter Ready */
+# define ATMCI_BLKE ( 1 << 3) /* Data Block Ended */
+# define ATMCI_DTIP ( 1 << 4) /* Data Transfer In Progress */
+# define ATMCI_NOTBUSY ( 1 << 5) /* Data Not Busy */
+# define ATMCI_ENDRX ( 1 << 6) /* End of RX Buffer */
+# define ATMCI_ENDTX ( 1 << 7) /* End of TX Buffer */
+# define ATMCI_SDIOIRQA ( 1 << 8) /* SDIO IRQ in slot A */
+# define ATMCI_SDIOIRQB ( 1 << 9) /* SDIO IRQ in slot B */
+# define ATMCI_SDIOWAIT ( 1 << 12) /* SDIO Read Wait Operation Status */
+# define ATMCI_CSRCV ( 1 << 13) /* CE-ATA Completion Signal Received */
+# define ATMCI_RXBUFF ( 1 << 14) /* RX Buffer Full */
+# define ATMCI_TXBUFE ( 1 << 15) /* TX Buffer Empty */
+# define ATMCI_RINDE ( 1 << 16) /* Response Index Error */
+# define ATMCI_RDIRE ( 1 << 17) /* Response Direction Error */
+# define ATMCI_RCRCE ( 1 << 18) /* Response CRC Error */
+# define ATMCI_RENDE ( 1 << 19) /* Response End Bit Error */
+# define ATMCI_RTOE ( 1 << 20) /* Response Time-Out Error */
+# define ATMCI_DCRCE ( 1 << 21) /* Data CRC Error */
+# define ATMCI_DTOE ( 1 << 22) /* Data Time-Out Error */
+# define ATMCI_CSTOE ( 1 << 23) /* Completion Signal Time-out Error */
+# define ATMCI_BLKOVRE ( 1 << 24) /* DMA Block Overrun Error */
+# define ATMCI_DMADONE ( 1 << 25) /* DMA Transfer Done */
+# define ATMCI_FIFOEMPTY ( 1 << 26) /* FIFO Empty Flag */
+# define ATMCI_XFRDONE ( 1 << 27) /* Transfer Done Flag */
+# define ATMCI_ACKRCV ( 1 << 28) /* Boot Operation Acknowledge Received */
+# define ATMCI_ACKRCVE ( 1 << 29) /* Boot Operation Acknowledge Error */
+# define ATMCI_OVRE ( 1 << 30) /* RX Overrun Error */
+# define ATMCI_UNRE ( 1 << 31) /* TX Underrun Error */
+#define ATMCI_DMA 0x0050 /* DMA Configuration[2] */
+# define ATMCI_DMA_OFFSET(x) ((x) << 0) /* DMA Write Buffer Offset */
+# define ATMCI_DMA_CHKSIZE(x) ((x) << 4) /* DMA Channel Read and Write Chunk Size */
+# define ATMCI_DMAEN ( 1 << 8) /* DMA Hardware Handshaking Enable */
+#define ATMCI_CFG 0x0054 /* Configuration[2] */
+# define ATMCI_CFG_FIFOMODE_1DATA ( 1 << 0) /* MCI Internal FIFO control mode */
+# define ATMCI_CFG_FERRCTRL_COR ( 1 << 4) /* Flow Error flag reset control mode */
+# define ATMCI_CFG_HSMODE ( 1 << 8) /* High Speed Mode */
+# define ATMCI_CFG_LSYNC ( 1 << 12) /* Synchronize on the last block */
+#define ATMCI_WPMR 0x00e4 /* Write Protection Mode[2] */
+# define ATMCI_WP_EN ( 1 << 0) /* WP Enable */
+# define ATMCI_WP_KEY (0x4d4349 << 8) /* WP Key */
+#define ATMCI_WPSR 0x00e8 /* Write Protection Status[2] */
+# define ATMCI_GET_WP_VS(x) ((x) & 0x0f)
+# define ATMCI_GET_WP_VSRC(x) (((x) >> 8) & 0xffff)
+#define ATMCI_VERSION 0x00FC /* Version */
+#define ATMCI_FIFO_APERTURE 0x0200 /* FIFO Aperture[2] */
/* This is not including the FIFO Aperture on MCI2 */
-#define MCI_REGS_SIZE 0x100
+#define ATMCI_REGS_SIZE 0x100
/* Register access macros */
-#define mci_readl(port,reg) \
- __raw_readl((port)->regs + MCI_##reg)
-#define mci_writel(port,reg,value) \
- __raw_writel((value), (port)->regs + MCI_##reg)
+#define atmci_readl(port,reg) \
+ __raw_readl((port)->regs + reg)
+#define atmci_writel(port,reg,value) \
+ __raw_writel((value), (port)->regs + reg)
#endif /* __DRIVERS_MMC_ATMEL_MCI_H__ */
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index fa8cae1d7005..a7ee50271465 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -30,6 +30,7 @@
#include <mach/atmel-mci.h>
#include <linux/atmel-mci.h>
+#include <linux/atmel_pdc.h>
#include <asm/io.h>
#include <asm/unaligned.h>
@@ -39,7 +40,7 @@
#include "atmel-mci-regs.h"
-#define ATMCI_DATA_ERROR_FLAGS (MCI_DCRCE | MCI_DTOE | MCI_OVRE | MCI_UNRE)
+#define ATMCI_DATA_ERROR_FLAGS (ATMCI_DCRCE | ATMCI_DTOE | ATMCI_OVRE | ATMCI_UNRE)
#define ATMCI_DMA_THRESHOLD 16
enum {
@@ -58,18 +59,35 @@ enum atmel_mci_state {
STATE_DATA_ERROR,
};
+enum atmci_xfer_dir {
+ XFER_RECEIVE = 0,
+ XFER_TRANSMIT,
+};
+
+enum atmci_pdc_buf {
+ PDC_FIRST_BUF = 0,
+ PDC_SECOND_BUF,
+};
+
+struct atmel_mci_caps {
+ bool has_dma;
+ bool has_pdc;
+ bool has_cfg_reg;
+ bool has_cstor_reg;
+ bool has_highspeed;
+ bool has_rwproof;
+};
+
struct atmel_mci_dma {
-#ifdef CONFIG_MMC_ATMELMCI_DMA
struct dma_chan *chan;
struct dma_async_tx_descriptor *data_desc;
-#endif
};
/**
* struct atmel_mci - MMC controller state shared between all slots
* @lock: Spinlock protecting the queue and associated data.
* @regs: Pointer to MMIO registers.
- * @sg: Scatterlist entry currently being processed by PIO code, if any.
+ * @sg: Scatterlist entry currently being processed by PIO or PDC code.
* @pio_offset: Offset into the current scatterlist entry.
* @cur_slot: The slot which is currently using the controller.
* @mrq: The request currently being processed on @cur_slot,
@@ -77,6 +95,7 @@ struct atmel_mci_dma {
* @cmd: The command currently being sent to the card, or NULL.
* @data: The data currently being transferred, or NULL if no data
* transfer is in progress.
+ * @data_size: just data->blocks * data->blksz.
* @dma: DMA client state.
* @data_chan: DMA channel being used for the current data transfer.
* @cmd_status: Snapshot of SR taken upon completion of the current
@@ -103,6 +122,13 @@ struct atmel_mci_dma {
* @mck: The peripheral bus clock hooked up to the MMC controller.
* @pdev: Platform device associated with the MMC controller.
* @slot: Slots sharing this MMC controller.
+ * @caps: MCI capabilities depending on MCI version.
+ * @prepare_data: function to setup MCI before data transfer which
+ * depends on MCI capabilities.
+ * @submit_data: function to start data transfer which depends on MCI
+ * capabilities.
+ * @stop_transfer: function to stop data transfer which depends on MCI
+ * capabilities.
*
* Locking
* =======
@@ -143,6 +169,7 @@ struct atmel_mci {
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
+ unsigned int data_size;
struct atmel_mci_dma dma;
struct dma_chan *data_chan;
@@ -166,7 +193,13 @@ struct atmel_mci {
struct clk *mck;
struct platform_device *pdev;
- struct atmel_mci_slot *slot[ATMEL_MCI_MAX_NR_SLOTS];
+ struct atmel_mci_slot *slot[ATMCI_MAX_NR_SLOTS];
+
+ struct atmel_mci_caps caps;
+
+ u32 (*prepare_data)(struct atmel_mci *host, struct mmc_data *data);
+ void (*submit_data)(struct atmel_mci *host, struct mmc_data *data);
+ void (*stop_transfer)(struct atmel_mci *host);
};
/**
@@ -220,31 +253,6 @@ struct atmel_mci_slot {
set_bit(event, &host->pending_events)
/*
- * Enable or disable features/registers based on
- * whether the processor supports them
- */
-static bool mci_has_rwproof(void)
-{
- if (cpu_is_at91sam9261() || cpu_is_at91rm9200())
- return false;
- else
- return true;
-}
-
-/*
- * The new MCI2 module isn't 100% compatible with the old MCI module,
- * and it has a few nice features which we want to use...
- */
-static inline bool atmci_is_mci2(void)
-{
- if (cpu_is_at91sam9g45())
- return true;
-
- return false;
-}
-
-
-/*
* The debugfs stuff below is mostly optimized away when
* CONFIG_DEBUG_FS is not set.
*/
@@ -352,7 +360,7 @@ static int atmci_regs_show(struct seq_file *s, void *v)
struct atmel_mci *host = s->private;
u32 *buf;
- buf = kmalloc(MCI_REGS_SIZE, GFP_KERNEL);
+ buf = kmalloc(ATMCI_REGS_SIZE, GFP_KERNEL);
if (!buf)
return -ENOMEM;
@@ -363,47 +371,50 @@ static int atmci_regs_show(struct seq_file *s, void *v)
*/
spin_lock_bh(&host->lock);
clk_enable(host->mck);
- memcpy_fromio(buf, host->regs, MCI_REGS_SIZE);
+ memcpy_fromio(buf, host->regs, ATMCI_REGS_SIZE);
clk_disable(host->mck);
spin_unlock_bh(&host->lock);
seq_printf(s, "MR:\t0x%08x%s%s CLKDIV=%u\n",
- buf[MCI_MR / 4],
- buf[MCI_MR / 4] & MCI_MR_RDPROOF ? " RDPROOF" : "",
- buf[MCI_MR / 4] & MCI_MR_WRPROOF ? " WRPROOF" : "",
- buf[MCI_MR / 4] & 0xff);
- seq_printf(s, "DTOR:\t0x%08x\n", buf[MCI_DTOR / 4]);
- seq_printf(s, "SDCR:\t0x%08x\n", buf[MCI_SDCR / 4]);
- seq_printf(s, "ARGR:\t0x%08x\n", buf[MCI_ARGR / 4]);
+ buf[ATMCI_MR / 4],
+ buf[ATMCI_MR / 4] & ATMCI_MR_RDPROOF ? " RDPROOF" : "",
+ buf[ATMCI_MR / 4] & ATMCI_MR_WRPROOF ? " WRPROOF" : "",
+ buf[ATMCI_MR / 4] & 0xff);
+ seq_printf(s, "DTOR:\t0x%08x\n", buf[ATMCI_DTOR / 4]);
+ seq_printf(s, "SDCR:\t0x%08x\n", buf[ATMCI_SDCR / 4]);
+ seq_printf(s, "ARGR:\t0x%08x\n", buf[ATMCI_ARGR / 4]);
seq_printf(s, "BLKR:\t0x%08x BCNT=%u BLKLEN=%u\n",
- buf[MCI_BLKR / 4],
- buf[MCI_BLKR / 4] & 0xffff,
- (buf[MCI_BLKR / 4] >> 16) & 0xffff);
- if (atmci_is_mci2())
- seq_printf(s, "CSTOR:\t0x%08x\n", buf[MCI_CSTOR / 4]);
+ buf[ATMCI_BLKR / 4],
+ buf[ATMCI_BLKR / 4] & 0xffff,
+ (buf[ATMCI_BLKR / 4] >> 16) & 0xffff);
+ if (host->caps.has_cstor_reg)
+ seq_printf(s, "CSTOR:\t0x%08x\n", buf[ATMCI_CSTOR / 4]);
/* Don't read RSPR and RDR; it will consume the data there */
- atmci_show_status_reg(s, "SR", buf[MCI_SR / 4]);
- atmci_show_status_reg(s, "IMR", buf[MCI_IMR / 4]);
+ atmci_show_status_reg(s, "SR", buf[ATMCI_SR / 4]);
+ atmci_show_status_reg(s, "IMR", buf[ATMCI_IMR / 4]);
- if (atmci_is_mci2()) {
+ if (host->caps.has_dma) {
u32 val;
- val = buf[MCI_DMA / 4];
+ val = buf[ATMCI_DMA / 4];
seq_printf(s, "DMA:\t0x%08x OFFSET=%u CHKSIZE=%u%s\n",
val, val & 3,
((val >> 4) & 3) ?
1 << (((val >> 4) & 3) + 1) : 1,
- val & MCI_DMAEN ? " DMAEN" : "");
+ val & ATMCI_DMAEN ? " DMAEN" : "");
+ }
+ if (host->caps.has_cfg_reg) {
+ u32 val;
- val = buf[MCI_CFG / 4];
+ val = buf[ATMCI_CFG / 4];
seq_printf(s, "CFG:\t0x%08x%s%s%s%s\n",
val,
- val & MCI_CFG_FIFOMODE_1DATA ? " FIFOMODE_ONE_DATA" : "",
- val & MCI_CFG_FERRCTRL_COR ? " FERRCTRL_CLEAR_ON_READ" : "",
- val & MCI_CFG_HSMODE ? " HSMODE" : "",
- val & MCI_CFG_LSYNC ? " LSYNC" : "");
+ val & ATMCI_CFG_FIFOMODE_1DATA ? " FIFOMODE_ONE_DATA" : "",
+ val & ATMCI_CFG_FERRCTRL_COR ? " FERRCTRL_CLEAR_ON_READ" : "",
+ val & ATMCI_CFG_HSMODE ? " HSMODE" : "",
+ val & ATMCI_CFG_LSYNC ? " LSYNC" : "");
}
kfree(buf);
@@ -466,7 +477,7 @@ err:
dev_err(&mmc->class_dev, "failed to initialize debugfs for slot\n");
}
-static inline unsigned int ns_to_clocks(struct atmel_mci *host,
+static inline unsigned int atmci_ns_to_clocks(struct atmel_mci *host,
unsigned int ns)
{
return (ns * (host->bus_hz / 1000000) + 999) / 1000;
@@ -482,7 +493,8 @@ static void atmci_set_timeout(struct atmel_mci *host,
unsigned dtocyc;
unsigned dtomul;
- timeout = ns_to_clocks(host, data->timeout_ns) + data->timeout_clks;
+ timeout = atmci_ns_to_clocks(host, data->timeout_ns)
+ + data->timeout_clks;
for (dtomul = 0; dtomul < 8; dtomul++) {
unsigned shift = dtomul_to_shift[dtomul];
@@ -498,7 +510,7 @@ static void atmci_set_timeout(struct atmel_mci *host,
dev_vdbg(&slot->mmc->class_dev, "setting timeout to %u cycles\n",
dtocyc << dtomul_to_shift[dtomul]);
- mci_writel(host, DTOR, (MCI_DTOMUL(dtomul) | MCI_DTOCYC(dtocyc)));
+ atmci_writel(host, ATMCI_DTOR, (ATMCI_DTOMUL(dtomul) | ATMCI_DTOCYC(dtocyc)));
}
/*
@@ -512,13 +524,13 @@ static u32 atmci_prepare_command(struct mmc_host *mmc,
cmd->error = -EINPROGRESS;
- cmdr = MCI_CMDR_CMDNB(cmd->opcode);
+ cmdr = ATMCI_CMDR_CMDNB(cmd->opcode);
if (cmd->flags & MMC_RSP_PRESENT) {
if (cmd->flags & MMC_RSP_136)
- cmdr |= MCI_CMDR_RSPTYP_136BIT;
+ cmdr |= ATMCI_CMDR_RSPTYP_136BIT;
else
- cmdr |= MCI_CMDR_RSPTYP_48BIT;
+ cmdr |= ATMCI_CMDR_RSPTYP_48BIT;
}
/*
@@ -526,34 +538,34 @@ static u32 atmci_prepare_command(struct mmc_host *mmc,
* it's too difficult to determine whether this is an ACMD or
* not. Better make it 64.
*/
- cmdr |= MCI_CMDR_MAXLAT_64CYC;
+ cmdr |= ATMCI_CMDR_MAXLAT_64CYC;
if (mmc->ios.bus_mode == MMC_BUSMODE_OPENDRAIN)
- cmdr |= MCI_CMDR_OPDCMD;
+ cmdr |= ATMCI_CMDR_OPDCMD;
data = cmd->data;
if (data) {
- cmdr |= MCI_CMDR_START_XFER;
+ cmdr |= ATMCI_CMDR_START_XFER;
if (cmd->opcode == SD_IO_RW_EXTENDED) {
- cmdr |= MCI_CMDR_SDIO_BLOCK;
+ cmdr |= ATMCI_CMDR_SDIO_BLOCK;
} else {
if (data->flags & MMC_DATA_STREAM)
- cmdr |= MCI_CMDR_STREAM;
+ cmdr |= ATMCI_CMDR_STREAM;
else if (data->blocks > 1)
- cmdr |= MCI_CMDR_MULTI_BLOCK;
+ cmdr |= ATMCI_CMDR_MULTI_BLOCK;
else
- cmdr |= MCI_CMDR_BLOCK;
+ cmdr |= ATMCI_CMDR_BLOCK;
}
if (data->flags & MMC_DATA_READ)
- cmdr |= MCI_CMDR_TRDIR_READ;
+ cmdr |= ATMCI_CMDR_TRDIR_READ;
}
return cmdr;
}
-static void atmci_start_command(struct atmel_mci *host,
+static void atmci_send_command(struct atmel_mci *host,
struct mmc_command *cmd, u32 cmd_flags)
{
WARN_ON(host->cmd);
@@ -563,43 +575,119 @@ static void atmci_start_command(struct atmel_mci *host,
"start command: ARGR=0x%08x CMDR=0x%08x\n",
cmd->arg, cmd_flags);
- mci_writel(host, ARGR, cmd->arg);
- mci_writel(host, CMDR, cmd_flags);
+ atmci_writel(host, ATMCI_ARGR, cmd->arg);
+ atmci_writel(host, ATMCI_CMDR, cmd_flags);
}
-static void send_stop_cmd(struct atmel_mci *host, struct mmc_data *data)
+static void atmci_send_stop_cmd(struct atmel_mci *host, struct mmc_data *data)
{
- atmci_start_command(host, data->stop, host->stop_cmdr);
- mci_writel(host, IER, MCI_CMDRDY);
+ atmci_send_command(host, data->stop, host->stop_cmdr);
+ atmci_writel(host, ATMCI_IER, ATMCI_CMDRDY);
}
-#ifdef CONFIG_MMC_ATMELMCI_DMA
-static void atmci_dma_cleanup(struct atmel_mci *host)
+/*
+ * Configure given PDC buffer taking care of alignement issues.
+ * Update host->data_size and host->sg.
+ */
+static void atmci_pdc_set_single_buf(struct atmel_mci *host,
+ enum atmci_xfer_dir dir, enum atmci_pdc_buf buf_nb)
+{
+ u32 pointer_reg, counter_reg;
+
+ if (dir == XFER_RECEIVE) {
+ pointer_reg = ATMEL_PDC_RPR;
+ counter_reg = ATMEL_PDC_RCR;
+ } else {
+ pointer_reg = ATMEL_PDC_TPR;
+ counter_reg = ATMEL_PDC_TCR;
+ }
+
+ if (buf_nb == PDC_SECOND_BUF) {
+ pointer_reg += ATMEL_PDC_SCND_BUF_OFF;
+ counter_reg += ATMEL_PDC_SCND_BUF_OFF;
+ }
+
+ atmci_writel(host, pointer_reg, sg_dma_address(host->sg));
+ if (host->data_size <= sg_dma_len(host->sg)) {
+ if (host->data_size & 0x3) {
+ /* If size is different from modulo 4, transfer bytes */
+ atmci_writel(host, counter_reg, host->data_size);
+ atmci_writel(host, ATMCI_MR, host->mode_reg | ATMCI_MR_PDCFBYTE);
+ } else {
+ /* Else transfer 32-bits words */
+ atmci_writel(host, counter_reg, host->data_size / 4);
+ }
+ host->data_size = 0;
+ } else {
+ /* We assume the size of a page is 32-bits aligned */
+ atmci_writel(host, counter_reg, sg_dma_len(host->sg) / 4);
+ host->data_size -= sg_dma_len(host->sg);
+ if (host->data_size)
+ host->sg = sg_next(host->sg);
+ }
+}
+
+/*
+ * Configure PDC buffer according to the data size ie configuring one or two
+ * buffers. Don't use this function if you want to configure only the second
+ * buffer. In this case, use atmci_pdc_set_single_buf.
+ */
+static void atmci_pdc_set_both_buf(struct atmel_mci *host, int dir)
{
- struct mmc_data *data = host->data;
+ atmci_pdc_set_single_buf(host, dir, PDC_FIRST_BUF);
+ if (host->data_size)
+ atmci_pdc_set_single_buf(host, dir, PDC_SECOND_BUF);
+}
+
+/*
+ * Unmap sg lists, called when transfer is finished.
+ */
+static void atmci_pdc_cleanup(struct atmel_mci *host)
+{
+ struct mmc_data *data = host->data;
if (data)
- dma_unmap_sg(host->dma.chan->device->dev,
- data->sg, data->sg_len,
- ((data->flags & MMC_DATA_WRITE)
- ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
+ dma_unmap_sg(&host->pdev->dev,
+ data->sg, data->sg_len,
+ ((data->flags & MMC_DATA_WRITE)
+ ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
}
-static void atmci_stop_dma(struct atmel_mci *host)
+/*
+ * Disable PDC transfers. Update pending flags to EVENT_XFER_COMPLETE after
+ * having received ATMCI_TXBUFE or ATMCI_RXBUFF interrupt. Enable ATMCI_NOTBUSY
+ * interrupt needed for both transfer directions.
+ */
+static void atmci_pdc_complete(struct atmel_mci *host)
{
- struct dma_chan *chan = host->data_chan;
+ atmci_writel(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTDIS | ATMEL_PDC_TXTDIS);
+ atmci_pdc_cleanup(host);
- if (chan) {
- dmaengine_terminate_all(chan);
- atmci_dma_cleanup(host);
- } else {
- /* Data transfer was stopped by the interrupt handler */
+ /*
+ * If the card was removed, data will be NULL. No point trying
+ * to send the stop command or waiting for NBUSY in this case.
+ */
+ if (host->data) {
atmci_set_pending(host, EVENT_XFER_COMPLETE);
- mci_writel(host, IER, MCI_NOTBUSY);
+ tasklet_schedule(&host->tasklet);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
}
}
-/* This function is called by the DMA driver from tasklet context. */
+static void atmci_dma_cleanup(struct atmel_mci *host)
+{
+ struct mmc_data *data = host->data;
+
+ if (data)
+ dma_unmap_sg(host->dma.chan->device->dev,
+ data->sg, data->sg_len,
+ ((data->flags & MMC_DATA_WRITE)
+ ? DMA_TO_DEVICE : DMA_FROM_DEVICE));
+}
+
+/*
+ * This function is called by the DMA driver from tasklet context.
+ */
static void atmci_dma_complete(void *arg)
{
struct atmel_mci *host = arg;
@@ -607,9 +695,9 @@ static void atmci_dma_complete(void *arg)
dev_vdbg(&host->pdev->dev, "DMA complete\n");
- if (atmci_is_mci2())
+ if (host->caps.has_dma)
/* Disable DMA hardware handshaking on MCI */
- mci_writel(host, DMA, mci_readl(host, DMA) & ~MCI_DMAEN);
+ atmci_writel(host, ATMCI_DMA, atmci_readl(host, ATMCI_DMA) & ~ATMCI_DMAEN);
atmci_dma_cleanup(host);
@@ -641,11 +729,93 @@ static void atmci_dma_complete(void *arg)
* completion callback" rule of the dma engine
* framework.
*/
- mci_writel(host, IER, MCI_NOTBUSY);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
}
}
-static int
+/*
+ * Returns a mask of interrupt flags to be enabled after the whole
+ * request has been prepared.
+ */
+static u32 atmci_prepare_data(struct atmel_mci *host, struct mmc_data *data)
+{
+ u32 iflags;
+
+ data->error = -EINPROGRESS;
+
+ host->sg = data->sg;
+ host->data = data;
+ host->data_chan = NULL;
+
+ iflags = ATMCI_DATA_ERROR_FLAGS;
+
+ /*
+ * Errata: MMC data write operation with less than 12
+ * bytes is impossible.
+ *
+ * Errata: MCI Transmit Data Register (TDR) FIFO
+ * corruption when length is not multiple of 4.
+ */
+ if (data->blocks * data->blksz < 12
+ || (data->blocks * data->blksz) & 3)
+ host->need_reset = true;
+
+ host->pio_offset = 0;
+ if (data->flags & MMC_DATA_READ)
+ iflags |= ATMCI_RXRDY;
+ else
+ iflags |= ATMCI_TXRDY;
+
+ return iflags;
+}
+
+/*
+ * Set interrupt flags and set block length into the MCI mode register even
+ * if this value is also accessible in the MCI block register. It seems to be
+ * necessary before the High Speed MCI version. It also map sg and configure
+ * PDC registers.
+ */
+static u32
+atmci_prepare_data_pdc(struct atmel_mci *host, struct mmc_data *data)
+{
+ u32 iflags, tmp;
+ unsigned int sg_len;
+ enum dma_data_direction dir;
+
+ data->error = -EINPROGRESS;
+
+ host->data = data;
+ host->sg = data->sg;
+ iflags = ATMCI_DATA_ERROR_FLAGS;
+
+ /* Enable pdc mode */
+ atmci_writel(host, ATMCI_MR, host->mode_reg | ATMCI_MR_PDCMODE);
+
+ if (data->flags & MMC_DATA_READ) {
+ dir = DMA_FROM_DEVICE;
+ iflags |= ATMCI_ENDRX | ATMCI_RXBUFF;
+ } else {
+ dir = DMA_TO_DEVICE;
+ iflags |= ATMCI_ENDTX | ATMCI_TXBUFE;
+ }
+
+ /* Set BLKLEN */
+ tmp = atmci_readl(host, ATMCI_MR);
+ tmp &= 0x0000ffff;
+ tmp |= ATMCI_BLKLEN(data->blksz);
+ atmci_writel(host, ATMCI_MR, tmp);
+
+ /* Configure PDC */
+ host->data_size = data->blocks * data->blksz;
+ sg_len = dma_map_sg(&host->pdev->dev, data->sg, data->sg_len, dir);
+ if (host->data_size)
+ atmci_pdc_set_both_buf(host,
+ ((dir == DMA_FROM_DEVICE) ? XFER_RECEIVE : XFER_TRANSMIT));
+
+ return iflags;
+}
+
+static u32
atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
{
struct dma_chan *chan;
@@ -654,6 +824,15 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
unsigned int i;
enum dma_data_direction direction;
unsigned int sglen;
+ u32 iflags;
+
+ data->error = -EINPROGRESS;
+
+ WARN_ON(host->data);
+ host->sg = NULL;
+ host->data = data;
+
+ iflags = ATMCI_DATA_ERROR_FLAGS;
/*
* We don't do DMA on "complex" transfers, i.e. with
@@ -661,13 +840,13 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
* with all the DMA setup overhead for short transfers.
*/
if (data->blocks * data->blksz < ATMCI_DMA_THRESHOLD)
- return -EINVAL;
+ return atmci_prepare_data(host, data);
if (data->blksz & 3)
- return -EINVAL;
+ return atmci_prepare_data(host, data);
for_each_sg(data->sg, sg, data->sg_len, i) {
if (sg->offset & 3 || sg->length & 3)
- return -EINVAL;
+ return atmci_prepare_data(host, data);
}
/* If we don't have a channel, we can't do DMA */
@@ -678,8 +857,8 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
if (!chan)
return -ENODEV;
- if (atmci_is_mci2())
- mci_writel(host, DMA, MCI_DMA_CHKSIZE(3) | MCI_DMAEN);
+ if (host->caps.has_dma)
+ atmci_writel(host, ATMCI_DMA, ATMCI_DMA_CHKSIZE(3) | ATMCI_DMAEN);
if (data->flags & MMC_DATA_READ)
direction = DMA_FROM_DEVICE;
@@ -687,7 +866,7 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
direction = DMA_TO_DEVICE;
sglen = dma_map_sg(chan->device->dev, data->sg,
- data->sg_len, direction);
+ data->sg_len, direction);
desc = chan->device->device_prep_slave_sg(chan,
data->sg, sglen, direction,
@@ -699,13 +878,32 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
desc->callback = atmci_dma_complete;
desc->callback_param = host;
- return 0;
+ return iflags;
unmap_exit:
dma_unmap_sg(chan->device->dev, data->sg, data->sg_len, direction);
return -ENOMEM;
}
-static void atmci_submit_data(struct atmel_mci *host)
+static void
+atmci_submit_data(struct atmel_mci *host, struct mmc_data *data)
+{
+ return;
+}
+
+/*
+ * Start PDC according to transfer direction.
+ */
+static void
+atmci_submit_data_pdc(struct atmel_mci *host, struct mmc_data *data)
+{
+ if (data->flags & MMC_DATA_READ)
+ atmci_writel(host, ATMEL_PDC_PTCR, ATMEL_PDC_RXTEN);
+ else
+ atmci_writel(host, ATMEL_PDC_PTCR, ATMEL_PDC_TXTEN);
+}
+
+static void
+atmci_submit_data_dma(struct atmel_mci *host, struct mmc_data *data)
{
struct dma_chan *chan = host->data_chan;
struct dma_async_tx_descriptor *desc = host->dma.data_desc;
@@ -716,64 +914,39 @@ static void atmci_submit_data(struct atmel_mci *host)
}
}
-#else /* CONFIG_MMC_ATMELMCI_DMA */
-
-static int atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
-{
- return -ENOSYS;
-}
-
-static void atmci_submit_data(struct atmel_mci *host) {}
-
-static void atmci_stop_dma(struct atmel_mci *host)
+static void atmci_stop_transfer(struct atmel_mci *host)
{
- /* Data transfer was stopped by the interrupt handler */
atmci_set_pending(host, EVENT_XFER_COMPLETE);
- mci_writel(host, IER, MCI_NOTBUSY);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
}
-#endif /* CONFIG_MMC_ATMELMCI_DMA */
-
/*
- * Returns a mask of interrupt flags to be enabled after the whole
- * request has been prepared.
+ * Stop data transfer because error(s) occured.
*/
-static u32 atmci_prepare_data(struct atmel_mci *host, struct mmc_data *data)
+static void atmci_stop_transfer_pdc(struct atmel_mci *host)
{
- u32 iflags;
-
- data->error = -EINPROGRESS;
-
- WARN_ON(host->data);
- host->sg = NULL;
- host->data = data;
-
- iflags = ATMCI_DATA_ERROR_FLAGS;
- if (atmci_prepare_data_dma(host, data)) {
- host->data_chan = NULL;
+ atmci_set_pending(host, EVENT_XFER_COMPLETE);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
+}
- /*
- * Errata: MMC data write operation with less than 12
- * bytes is impossible.
- *
- * Errata: MCI Transmit Data Register (TDR) FIFO
- * corruption when length is not multiple of 4.
- */
- if (data->blocks * data->blksz < 12
- || (data->blocks * data->blksz) & 3)
- host->need_reset = true;
+static void atmci_stop_transfer_dma(struct atmel_mci *host)
+{
+ struct dma_chan *chan = host->data_chan;
- host->sg = data->sg;
- host->pio_offset = 0;
- if (data->flags & MMC_DATA_READ)
- iflags |= MCI_RXRDY;
- else
- iflags |= MCI_TXRDY;
+ if (chan) {
+ dmaengine_terminate_all(chan);
+ atmci_dma_cleanup(host);
+ } else {
+ /* Data transfer was stopped by the interrupt handler */
+ atmci_set_pending(host, EVENT_XFER_COMPLETE);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
}
-
- return iflags;
}
+/*
+ * Start a request: prepare data if needed, prepare the command and activate
+ * interrupts.
+ */
static void atmci_start_request(struct atmel_mci *host,
struct atmel_mci_slot *slot)
{
@@ -792,24 +965,24 @@ static void atmci_start_request(struct atmel_mci *host,
host->data_status = 0;
if (host->need_reset) {
- mci_writel(host, CR, MCI_CR_SWRST);
- mci_writel(host, CR, MCI_CR_MCIEN);
- mci_writel(host, MR, host->mode_reg);
- if (atmci_is_mci2())
- mci_writel(host, CFG, host->cfg_reg);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIEN);
+ atmci_writel(host, ATMCI_MR, host->mode_reg);
+ if (host->caps.has_cfg_reg)
+ atmci_writel(host, ATMCI_CFG, host->cfg_reg);
host->need_reset = false;
}
- mci_writel(host, SDCR, slot->sdc_reg);
+ atmci_writel(host, ATMCI_SDCR, slot->sdc_reg);
- iflags = mci_readl(host, IMR);
- if (iflags & ~(MCI_SDIOIRQA | MCI_SDIOIRQB))
+ iflags = atmci_readl(host, ATMCI_IMR);
+ if (iflags & ~(ATMCI_SDIOIRQA | ATMCI_SDIOIRQB))
dev_warn(&slot->mmc->class_dev, "WARNING: IMR=0x%08x\n",
iflags);
if (unlikely(test_and_clear_bit(ATMCI_CARD_NEED_INIT, &slot->flags))) {
/* Send init sequence (74 clock cycles) */
- mci_writel(host, CMDR, MCI_CMDR_SPCMD_INIT);
- while (!(mci_readl(host, SR) & MCI_CMDRDY))
+ atmci_writel(host, ATMCI_CMDR, ATMCI_CMDR_SPCMD_INIT);
+ while (!(atmci_readl(host, ATMCI_SR) & ATMCI_CMDRDY))
cpu_relax();
}
iflags = 0;
@@ -818,31 +991,31 @@ static void atmci_start_request(struct atmel_mci *host,
atmci_set_timeout(host, slot, data);
/* Must set block count/size before sending command */
- mci_writel(host, BLKR, MCI_BCNT(data->blocks)
- | MCI_BLKLEN(data->blksz));
+ atmci_writel(host, ATMCI_BLKR, ATMCI_BCNT(data->blocks)
+ | ATMCI_BLKLEN(data->blksz));
dev_vdbg(&slot->mmc->class_dev, "BLKR=0x%08x\n",
- MCI_BCNT(data->blocks) | MCI_BLKLEN(data->blksz));
+ ATMCI_BCNT(data->blocks) | ATMCI_BLKLEN(data->blksz));
- iflags |= atmci_prepare_data(host, data);
+ iflags |= host->prepare_data(host, data);
}
- iflags |= MCI_CMDRDY;
+ iflags |= ATMCI_CMDRDY;
cmd = mrq->cmd;
cmdflags = atmci_prepare_command(slot->mmc, cmd);
- atmci_start_command(host, cmd, cmdflags);
+ atmci_send_command(host, cmd, cmdflags);
if (data)
- atmci_submit_data(host);
+ host->submit_data(host, data);
if (mrq->stop) {
host->stop_cmdr = atmci_prepare_command(slot->mmc, mrq->stop);
- host->stop_cmdr |= MCI_CMDR_STOP_XFER;
+ host->stop_cmdr |= ATMCI_CMDR_STOP_XFER;
if (!(data->flags & MMC_DATA_WRITE))
- host->stop_cmdr |= MCI_CMDR_TRDIR_READ;
+ host->stop_cmdr |= ATMCI_CMDR_TRDIR_READ;
if (data->flags & MMC_DATA_STREAM)
- host->stop_cmdr |= MCI_CMDR_STREAM;
+ host->stop_cmdr |= ATMCI_CMDR_STREAM;
else
- host->stop_cmdr |= MCI_CMDR_MULTI_BLOCK;
+ host->stop_cmdr |= ATMCI_CMDR_MULTI_BLOCK;
}
/*
@@ -851,7 +1024,7 @@ static void atmci_start_request(struct atmel_mci *host,
* conditions (e.g. command and data complete, but stop not
* prepared yet.)
*/
- mci_writel(host, IER, iflags);
+ atmci_writel(host, ATMCI_IER, iflags);
}
static void atmci_queue_request(struct atmel_mci *host,
@@ -909,13 +1082,13 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
struct atmel_mci *host = slot->host;
unsigned int i;
- slot->sdc_reg &= ~MCI_SDCBUS_MASK;
+ slot->sdc_reg &= ~ATMCI_SDCBUS_MASK;
switch (ios->bus_width) {
case MMC_BUS_WIDTH_1:
- slot->sdc_reg |= MCI_SDCBUS_1BIT;
+ slot->sdc_reg |= ATMCI_SDCBUS_1BIT;
break;
case MMC_BUS_WIDTH_4:
- slot->sdc_reg |= MCI_SDCBUS_4BIT;
+ slot->sdc_reg |= ATMCI_SDCBUS_4BIT;
break;
}
@@ -926,10 +1099,10 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
spin_lock_bh(&host->lock);
if (!host->mode_reg) {
clk_enable(host->mck);
- mci_writel(host, CR, MCI_CR_SWRST);
- mci_writel(host, CR, MCI_CR_MCIEN);
- if (atmci_is_mci2())
- mci_writel(host, CFG, host->cfg_reg);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIEN);
+ if (host->caps.has_cfg_reg)
+ atmci_writel(host, ATMCI_CFG, host->cfg_reg);
}
/*
@@ -937,7 +1110,7 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
* core ios update when finding the minimum.
*/
slot->clock = ios->clock;
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (host->slot[i] && host->slot[i]->clock
&& host->slot[i]->clock < clock_min)
clock_min = host->slot[i]->clock;
@@ -952,28 +1125,28 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
clkdiv = 255;
}
- host->mode_reg = MCI_MR_CLKDIV(clkdiv);
+ host->mode_reg = ATMCI_MR_CLKDIV(clkdiv);
/*
* WRPROOF and RDPROOF prevent overruns/underruns by
* stopping the clock when the FIFO is full/empty.
* This state is not expected to last for long.
*/
- if (mci_has_rwproof())
- host->mode_reg |= (MCI_MR_WRPROOF | MCI_MR_RDPROOF);
+ if (host->caps.has_rwproof)
+ host->mode_reg |= (ATMCI_MR_WRPROOF | ATMCI_MR_RDPROOF);
- if (atmci_is_mci2()) {
+ if (host->caps.has_cfg_reg) {
/* setup High Speed mode in relation with card capacity */
if (ios->timing == MMC_TIMING_SD_HS)
- host->cfg_reg |= MCI_CFG_HSMODE;
+ host->cfg_reg |= ATMCI_CFG_HSMODE;
else
- host->cfg_reg &= ~MCI_CFG_HSMODE;
+ host->cfg_reg &= ~ATMCI_CFG_HSMODE;
}
if (list_empty(&host->queue)) {
- mci_writel(host, MR, host->mode_reg);
- if (atmci_is_mci2())
- mci_writel(host, CFG, host->cfg_reg);
+ atmci_writel(host, ATMCI_MR, host->mode_reg);
+ if (host->caps.has_cfg_reg)
+ atmci_writel(host, ATMCI_CFG, host->cfg_reg);
} else {
host->need_clock_update = true;
}
@@ -984,16 +1157,16 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
spin_lock_bh(&host->lock);
slot->clock = 0;
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (host->slot[i] && host->slot[i]->clock) {
any_slot_active = true;
break;
}
}
if (!any_slot_active) {
- mci_writel(host, CR, MCI_CR_MCIDIS);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIDIS);
if (host->mode_reg) {
- mci_readl(host, MR);
+ atmci_readl(host, ATMCI_MR);
clk_disable(host->mck);
}
host->mode_reg = 0;
@@ -1057,9 +1230,9 @@ static void atmci_enable_sdio_irq(struct mmc_host *mmc, int enable)
struct atmel_mci *host = slot->host;
if (enable)
- mci_writel(host, IER, slot->sdio_irq);
+ atmci_writel(host, ATMCI_IER, slot->sdio_irq);
else
- mci_writel(host, IDR, slot->sdio_irq);
+ atmci_writel(host, ATMCI_IDR, slot->sdio_irq);
}
static const struct mmc_host_ops atmci_ops = {
@@ -1086,9 +1259,9 @@ static void atmci_request_end(struct atmel_mci *host, struct mmc_request *mrq)
* busy transferring data.
*/
if (host->need_clock_update) {
- mci_writel(host, MR, host->mode_reg);
- if (atmci_is_mci2())
- mci_writel(host, CFG, host->cfg_reg);
+ atmci_writel(host, ATMCI_MR, host->mode_reg);
+ if (host->caps.has_cfg_reg)
+ atmci_writel(host, ATMCI_CFG, host->cfg_reg);
}
host->cur_slot->mrq = NULL;
@@ -1117,16 +1290,16 @@ static void atmci_command_complete(struct atmel_mci *host,
u32 status = host->cmd_status;
/* Read the response from the card (up to 16 bytes) */
- cmd->resp[0] = mci_readl(host, RSPR);
- cmd->resp[1] = mci_readl(host, RSPR);
- cmd->resp[2] = mci_readl(host, RSPR);
- cmd->resp[3] = mci_readl(host, RSPR);
+ cmd->resp[0] = atmci_readl(host, ATMCI_RSPR);
+ cmd->resp[1] = atmci_readl(host, ATMCI_RSPR);
+ cmd->resp[2] = atmci_readl(host, ATMCI_RSPR);
+ cmd->resp[3] = atmci_readl(host, ATMCI_RSPR);
- if (status & MCI_RTOE)
+ if (status & ATMCI_RTOE)
cmd->error = -ETIMEDOUT;
- else if ((cmd->flags & MMC_RSP_CRC) && (status & MCI_RCRCE))
+ else if ((cmd->flags & MMC_RSP_CRC) && (status & ATMCI_RCRCE))
cmd->error = -EILSEQ;
- else if (status & (MCI_RINDE | MCI_RDIRE | MCI_RENDE))
+ else if (status & (ATMCI_RINDE | ATMCI_RDIRE | ATMCI_RENDE))
cmd->error = -EIO;
else
cmd->error = 0;
@@ -1136,10 +1309,10 @@ static void atmci_command_complete(struct atmel_mci *host,
"command error: status=0x%08x\n", status);
if (cmd->data) {
- atmci_stop_dma(host);
+ host->stop_transfer(host);
host->data = NULL;
- mci_writel(host, IDR, MCI_NOTBUSY
- | MCI_TXRDY | MCI_RXRDY
+ atmci_writel(host, ATMCI_IDR, ATMCI_NOTBUSY
+ | ATMCI_TXRDY | ATMCI_RXRDY
| ATMCI_DATA_ERROR_FLAGS);
}
}
@@ -1191,11 +1364,11 @@ static void atmci_detect_change(unsigned long data)
* Reset controller to terminate any ongoing
* commands or data transfers.
*/
- mci_writel(host, CR, MCI_CR_SWRST);
- mci_writel(host, CR, MCI_CR_MCIEN);
- mci_writel(host, MR, host->mode_reg);
- if (atmci_is_mci2())
- mci_writel(host, CFG, host->cfg_reg);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIEN);
+ atmci_writel(host, ATMCI_MR, host->mode_reg);
+ if (host->caps.has_cfg_reg)
+ atmci_writel(host, ATMCI_CFG, host->cfg_reg);
host->data = NULL;
host->cmd = NULL;
@@ -1210,7 +1383,7 @@ static void atmci_detect_change(unsigned long data)
/* fall through */
case STATE_SENDING_DATA:
mrq->data->error = -ENOMEDIUM;
- atmci_stop_dma(host);
+ host->stop_transfer(host);
break;
case STATE_DATA_BUSY:
case STATE_DATA_ERROR:
@@ -1261,7 +1434,7 @@ static void atmci_tasklet_func(unsigned long priv)
dev_vdbg(&host->pdev->dev,
"tasklet: state %u pending/completed/mask %lx/%lx/%x\n",
state, host->pending_events, host->completed_events,
- mci_readl(host, IMR));
+ atmci_readl(host, ATMCI_IMR));
do {
prev_state = state;
@@ -1289,9 +1462,9 @@ static void atmci_tasklet_func(unsigned long priv)
case STATE_SENDING_DATA:
if (atmci_test_and_clear_pending(host,
EVENT_DATA_ERROR)) {
- atmci_stop_dma(host);
+ host->stop_transfer(host);
if (data->stop)
- send_stop_cmd(host, data);
+ atmci_send_stop_cmd(host, data);
state = STATE_DATA_ERROR;
break;
}
@@ -1313,11 +1486,11 @@ static void atmci_tasklet_func(unsigned long priv)
atmci_set_completed(host, EVENT_DATA_COMPLETE);
status = host->data_status;
if (unlikely(status & ATMCI_DATA_ERROR_FLAGS)) {
- if (status & MCI_DTOE) {
+ if (status & ATMCI_DTOE) {
dev_dbg(&host->pdev->dev,
"data timeout error\n");
data->error = -ETIMEDOUT;
- } else if (status & MCI_DCRCE) {
+ } else if (status & ATMCI_DCRCE) {
dev_dbg(&host->pdev->dev,
"data CRC error\n");
data->error = -EILSEQ;
@@ -1330,7 +1503,7 @@ static void atmci_tasklet_func(unsigned long priv)
} else {
data->bytes_xfered = data->blocks * data->blksz;
data->error = 0;
- mci_writel(host, IDR, ATMCI_DATA_ERROR_FLAGS);
+ atmci_writel(host, ATMCI_IDR, ATMCI_DATA_ERROR_FLAGS);
}
if (!data->stop) {
@@ -1340,7 +1513,7 @@ static void atmci_tasklet_func(unsigned long priv)
prev_state = state = STATE_SENDING_STOP;
if (!data->error)
- send_stop_cmd(host, data);
+ atmci_send_stop_cmd(host, data);
/* fall through */
case STATE_SENDING_STOP:
@@ -1380,7 +1553,7 @@ static void atmci_read_data_pio(struct atmel_mci *host)
unsigned int nbytes = 0;
do {
- value = mci_readl(host, RDR);
+ value = atmci_readl(host, ATMCI_RDR);
if (likely(offset + 4 <= sg->length)) {
put_unaligned(value, (u32 *)(buf + offset));
@@ -1412,9 +1585,9 @@ static void atmci_read_data_pio(struct atmel_mci *host)
nbytes += offset;
}
- status = mci_readl(host, SR);
+ status = atmci_readl(host, ATMCI_SR);
if (status & ATMCI_DATA_ERROR_FLAGS) {
- mci_writel(host, IDR, (MCI_NOTBUSY | MCI_RXRDY
+ atmci_writel(host, ATMCI_IDR, (ATMCI_NOTBUSY | ATMCI_RXRDY
| ATMCI_DATA_ERROR_FLAGS));
host->data_status = status;
data->bytes_xfered += nbytes;
@@ -1423,7 +1596,7 @@ static void atmci_read_data_pio(struct atmel_mci *host)
tasklet_schedule(&host->tasklet);
return;
}
- } while (status & MCI_RXRDY);
+ } while (status & ATMCI_RXRDY);
host->pio_offset = offset;
data->bytes_xfered += nbytes;
@@ -1431,8 +1604,8 @@ static void atmci_read_data_pio(struct atmel_mci *host)
return;
done:
- mci_writel(host, IDR, MCI_RXRDY);
- mci_writel(host, IER, MCI_NOTBUSY);
+ atmci_writel(host, ATMCI_IDR, ATMCI_RXRDY);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
data->bytes_xfered += nbytes;
smp_wmb();
atmci_set_pending(host, EVENT_XFER_COMPLETE);
@@ -1451,7 +1624,7 @@ static void atmci_write_data_pio(struct atmel_mci *host)
do {
if (likely(offset + 4 <= sg->length)) {
value = get_unaligned((u32 *)(buf + offset));
- mci_writel(host, TDR, value);
+ atmci_writel(host, ATMCI_TDR, value);
offset += 4;
nbytes += 4;
@@ -1472,20 +1645,20 @@ static void atmci_write_data_pio(struct atmel_mci *host)
host->sg = sg = sg_next(sg);
if (!sg) {
- mci_writel(host, TDR, value);
+ atmci_writel(host, ATMCI_TDR, value);
goto done;
}
offset = 4 - remaining;
buf = sg_virt(sg);
memcpy((u8 *)&value + remaining, buf, offset);
- mci_writel(host, TDR, value);
+ atmci_writel(host, ATMCI_TDR, value);
nbytes += offset;
}
- status = mci_readl(host, SR);
+ status = atmci_readl(host, ATMCI_SR);
if (status & ATMCI_DATA_ERROR_FLAGS) {
- mci_writel(host, IDR, (MCI_NOTBUSY | MCI_TXRDY
+ atmci_writel(host, ATMCI_IDR, (ATMCI_NOTBUSY | ATMCI_TXRDY
| ATMCI_DATA_ERROR_FLAGS));
host->data_status = status;
data->bytes_xfered += nbytes;
@@ -1494,7 +1667,7 @@ static void atmci_write_data_pio(struct atmel_mci *host)
tasklet_schedule(&host->tasklet);
return;
}
- } while (status & MCI_TXRDY);
+ } while (status & ATMCI_TXRDY);
host->pio_offset = offset;
data->bytes_xfered += nbytes;
@@ -1502,8 +1675,8 @@ static void atmci_write_data_pio(struct atmel_mci *host)
return;
done:
- mci_writel(host, IDR, MCI_TXRDY);
- mci_writel(host, IER, MCI_NOTBUSY);
+ atmci_writel(host, ATMCI_IDR, ATMCI_TXRDY);
+ atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);
data->bytes_xfered += nbytes;
smp_wmb();
atmci_set_pending(host, EVENT_XFER_COMPLETE);
@@ -1511,7 +1684,7 @@ done:
static void atmci_cmd_interrupt(struct atmel_mci *host, u32 status)
{
- mci_writel(host, IDR, MCI_CMDRDY);
+ atmci_writel(host, ATMCI_IDR, ATMCI_CMDRDY);
host->cmd_status = status;
smp_wmb();
@@ -1523,7 +1696,7 @@ static void atmci_sdio_interrupt(struct atmel_mci *host, u32 status)
{
int i;
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
struct atmel_mci_slot *slot = host->slot[i];
if (slot && (status & slot->sdio_irq)) {
mmc_signal_sdio_irq(slot->mmc);
@@ -1539,40 +1712,92 @@ static irqreturn_t atmci_interrupt(int irq, void *dev_id)
unsigned int pass_count = 0;
do {
- status = mci_readl(host, SR);
- mask = mci_readl(host, IMR);
+ status = atmci_readl(host, ATMCI_SR);
+ mask = atmci_readl(host, ATMCI_IMR);
pending = status & mask;
if (!pending)
break;
if (pending & ATMCI_DATA_ERROR_FLAGS) {
- mci_writel(host, IDR, ATMCI_DATA_ERROR_FLAGS
- | MCI_RXRDY | MCI_TXRDY);
- pending &= mci_readl(host, IMR);
+ atmci_writel(host, ATMCI_IDR, ATMCI_DATA_ERROR_FLAGS
+ | ATMCI_RXRDY | ATMCI_TXRDY);
+ pending &= atmci_readl(host, ATMCI_IMR);
host->data_status = status;
smp_wmb();
atmci_set_pending(host, EVENT_DATA_ERROR);
tasklet_schedule(&host->tasklet);
}
- if (pending & MCI_NOTBUSY) {
- mci_writel(host, IDR,
- ATMCI_DATA_ERROR_FLAGS | MCI_NOTBUSY);
+
+ if (pending & ATMCI_TXBUFE) {
+ atmci_writel(host, ATMCI_IDR, ATMCI_TXBUFE);
+ atmci_writel(host, ATMCI_IDR, ATMCI_ENDTX);
+ /*
+ * We can receive this interruption before having configured
+ * the second pdc buffer, so we need to reconfigure first and
+ * second buffers again
+ */
+ if (host->data_size) {
+ atmci_pdc_set_both_buf(host, XFER_TRANSMIT);
+ atmci_writel(host, ATMCI_IER, ATMCI_ENDTX);
+ atmci_writel(host, ATMCI_IER, ATMCI_TXBUFE);
+ } else {
+ atmci_pdc_complete(host);
+ }
+ } else if (pending & ATMCI_ENDTX) {
+ atmci_writel(host, ATMCI_IDR, ATMCI_ENDTX);
+
+ if (host->data_size) {
+ atmci_pdc_set_single_buf(host,
+ XFER_TRANSMIT, PDC_SECOND_BUF);
+ atmci_writel(host, ATMCI_IER, ATMCI_ENDTX);
+ }
+ }
+
+ if (pending & ATMCI_RXBUFF) {
+ atmci_writel(host, ATMCI_IDR, ATMCI_RXBUFF);
+ atmci_writel(host, ATMCI_IDR, ATMCI_ENDRX);
+ /*
+ * We can receive this interruption before having configured
+ * the second pdc buffer, so we need to reconfigure first and
+ * second buffers again
+ */
+ if (host->data_size) {
+ atmci_pdc_set_both_buf(host, XFER_RECEIVE);
+ atmci_writel(host, ATMCI_IER, ATMCI_ENDRX);
+ atmci_writel(host, ATMCI_IER, ATMCI_RXBUFF);
+ } else {
+ atmci_pdc_complete(host);
+ }
+ } else if (pending & ATMCI_ENDRX) {
+ atmci_writel(host, ATMCI_IDR, ATMCI_ENDRX);
+
+ if (host->data_size) {
+ atmci_pdc_set_single_buf(host,
+ XFER_RECEIVE, PDC_SECOND_BUF);
+ atmci_writel(host, ATMCI_IER, ATMCI_ENDRX);
+ }
+ }
+
+
+ if (pending & ATMCI_NOTBUSY) {
+ atmci_writel(host, ATMCI_IDR,
+ ATMCI_DATA_ERROR_FLAGS | ATMCI_NOTBUSY);
if (!host->data_status)
host->data_status = status;
smp_wmb();
atmci_set_pending(host, EVENT_DATA_COMPLETE);
tasklet_schedule(&host->tasklet);
}
- if (pending & MCI_RXRDY)
+ if (pending & ATMCI_RXRDY)
atmci_read_data_pio(host);
- if (pending & MCI_TXRDY)
+ if (pending & ATMCI_TXRDY)
atmci_write_data_pio(host);
- if (pending & MCI_CMDRDY)
+ if (pending & ATMCI_CMDRDY)
atmci_cmd_interrupt(host, status);
- if (pending & (MCI_SDIOIRQA | MCI_SDIOIRQB))
+ if (pending & (ATMCI_SDIOIRQA | ATMCI_SDIOIRQB))
atmci_sdio_interrupt(host, status);
} while (pass_count++ < 5);
@@ -1621,7 +1846,7 @@ static int __init atmci_init_slot(struct atmel_mci *host,
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
if (sdio_irq)
mmc->caps |= MMC_CAP_SDIO_IRQ;
- if (atmci_is_mci2())
+ if (host->caps.has_highspeed)
mmc->caps |= MMC_CAP_SD_HIGHSPEED;
if (slot_data->bus_width >= 4)
mmc->caps |= MMC_CAP_4_BIT_DATA;
@@ -1704,8 +1929,7 @@ static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot,
mmc_free_host(slot->mmc);
}
-#ifdef CONFIG_MMC_ATMELMCI_DMA
-static bool filter(struct dma_chan *chan, void *slave)
+static bool atmci_filter(struct dma_chan *chan, void *slave)
{
struct mci_dma_data *sl = slave;
@@ -1730,14 +1954,14 @@ static void atmci_configure_dma(struct atmel_mci *host)
dma_cap_mask_t mask;
setup_dma_addr(pdata->dma_slave,
- host->mapbase + MCI_TDR,
- host->mapbase + MCI_RDR);
+ host->mapbase + ATMCI_TDR,
+ host->mapbase + ATMCI_RDR);
/* Try to grab a DMA channel */
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma.chan =
- dma_request_channel(mask, filter, pdata->dma_slave);
+ dma_request_channel(mask, atmci_filter, pdata->dma_slave);
}
if (!host->dma.chan)
dev_notice(&host->pdev->dev, "DMA not available, using PIO\n");
@@ -1746,9 +1970,60 @@ static void atmci_configure_dma(struct atmel_mci *host)
"Using %s for DMA transfers\n",
dma_chan_name(host->dma.chan));
}
+
+static inline unsigned int atmci_get_version(struct atmel_mci *host)
+{
+ return atmci_readl(host, ATMCI_VERSION) & 0x00000fff;
+}
+
+/*
+ * HSMCI (High Speed MCI) module is not fully compatible with MCI module.
+ * HSMCI provides DMA support and a new config register but no more supports
+ * PDC.
+ */
+static void __init atmci_get_cap(struct atmel_mci *host)
+{
+ unsigned int version;
+
+ version = atmci_get_version(host);
+ dev_info(&host->pdev->dev,
+ "version: 0x%x\n", version);
+
+ host->caps.has_dma = 0;
+ host->caps.has_pdc = 0;
+ host->caps.has_cfg_reg = 0;
+ host->caps.has_cstor_reg = 0;
+ host->caps.has_highspeed = 0;
+ host->caps.has_rwproof = 0;
+
+ /* keep only major version number */
+ switch (version & 0xf00) {
+ case 0x100:
+ case 0x200:
+ host->caps.has_pdc = 1;
+ host->caps.has_rwproof = 1;
+ break;
+ case 0x300:
+ case 0x400:
+ case 0x500:
+#ifdef CONFIG_AT_HDMAC
+ host->caps.has_dma = 1;
#else
-static void atmci_configure_dma(struct atmel_mci *host) {}
+ host->caps.has_dma = 0;
+ dev_info(&host->pdev->dev,
+ "has dma capability but dma engine is not selected, then use pio\n");
#endif
+ host->caps.has_cfg_reg = 1;
+ host->caps.has_cstor_reg = 1;
+ host->caps.has_highspeed = 1;
+ host->caps.has_rwproof = 1;
+ break;
+ default:
+ dev_warn(&host->pdev->dev,
+ "Unmanaged mci version, set minimum capabilities\n");
+ break;
+ }
+}
static int __init atmci_probe(struct platform_device *pdev)
{
@@ -1789,7 +2064,7 @@ static int __init atmci_probe(struct platform_device *pdev)
goto err_ioremap;
clk_enable(host->mck);
- mci_writel(host, CR, MCI_CR_SWRST);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
host->bus_hz = clk_get_rate(host->mck);
clk_disable(host->mck);
@@ -1801,7 +2076,27 @@ static int __init atmci_probe(struct platform_device *pdev)
if (ret)
goto err_request_irq;
- atmci_configure_dma(host);
+ /* Get MCI capabilities and set operations according to it */
+ atmci_get_cap(host);
+ if (host->caps.has_dma) {
+ dev_info(&pdev->dev, "using DMA\n");
+ host->prepare_data = &atmci_prepare_data_dma;
+ host->submit_data = &atmci_submit_data_dma;
+ host->stop_transfer = &atmci_stop_transfer_dma;
+ } else if (host->caps.has_pdc) {
+ dev_info(&pdev->dev, "using PDC\n");
+ host->prepare_data = &atmci_prepare_data_pdc;
+ host->submit_data = &atmci_submit_data_pdc;
+ host->stop_transfer = &atmci_stop_transfer_pdc;
+ } else {
+ dev_info(&pdev->dev, "no DMA, no PDC\n");
+ host->prepare_data = &atmci_prepare_data;
+ host->submit_data = &atmci_submit_data;
+ host->stop_transfer = &atmci_stop_transfer;
+ }
+
+ if (host->caps.has_dma)
+ atmci_configure_dma(host);
platform_set_drvdata(pdev, host);
@@ -1810,13 +2105,13 @@ static int __init atmci_probe(struct platform_device *pdev)
ret = -ENODEV;
if (pdata->slot[0].bus_width) {
ret = atmci_init_slot(host, &pdata->slot[0],
- 0, MCI_SDCSEL_SLOT_A, MCI_SDIOIRQA);
+ 0, ATMCI_SDCSEL_SLOT_A, ATMCI_SDIOIRQA);
if (!ret)
nr_slots++;
}
if (pdata->slot[1].bus_width) {
ret = atmci_init_slot(host, &pdata->slot[1],
- 1, MCI_SDCSEL_SLOT_B, MCI_SDIOIRQB);
+ 1, ATMCI_SDCSEL_SLOT_B, ATMCI_SDIOIRQB);
if (!ret)
nr_slots++;
}
@@ -1833,10 +2128,8 @@ static int __init atmci_probe(struct platform_device *pdev)
return 0;
err_init_slot:
-#ifdef CONFIG_MMC_ATMELMCI_DMA
if (host->dma.chan)
dma_release_channel(host->dma.chan);
-#endif
free_irq(irq, host);
err_request_irq:
iounmap(host->regs);
@@ -1854,15 +2147,15 @@ static int __exit atmci_remove(struct platform_device *pdev)
platform_set_drvdata(pdev, NULL);
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
if (host->slot[i])
atmci_cleanup_slot(host->slot[i], i);
}
clk_enable(host->mck);
- mci_writel(host, IDR, ~0UL);
- mci_writel(host, CR, MCI_CR_MCIDIS);
- mci_readl(host, SR);
+ atmci_writel(host, ATMCI_IDR, ~0UL);
+ atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIDIS);
+ atmci_readl(host, ATMCI_SR);
clk_disable(host->mck);
#ifdef CONFIG_MMC_ATMELMCI_DMA
@@ -1885,7 +2178,7 @@ static int atmci_suspend(struct device *dev)
struct atmel_mci *host = dev_get_drvdata(dev);
int i;
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
struct atmel_mci_slot *slot = host->slot[i];
int ret;
@@ -1916,7 +2209,7 @@ static int atmci_resume(struct device *dev)
int i;
int ret = 0;
- for (i = 0; i < ATMEL_MCI_MAX_NR_SLOTS; i++) {
+ for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
struct atmel_mci_slot *slot = host->slot[i];
int err;
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index ef72e874ca36..707bc7dddd22 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -55,7 +55,7 @@
#ifdef DEBUG
#define DBG(fmt, idx, args...) \
- printk(KERN_DEBUG "au1xmmc(%d): DEBUG: " fmt, idx, ##args)
+ pr_debug("au1xmmc(%d): DEBUG: " fmt, idx, ##args)
#else
#define DBG(fmt, idx, args...) do {} while (0)
#endif
@@ -268,7 +268,7 @@ static int au1xmmc_send_command(struct au1xmmc_host *host, int wait,
mmccmd |= SD_CMD_RT_3;
break;
default:
- printk(KERN_INFO "au1xmmc: unhandled response type %02x\n",
+ pr_info("au1xmmc: unhandled response type %02x\n",
mmc_resp_type(cmd));
return -EINVAL;
}
@@ -1031,7 +1031,7 @@ static int __devinit au1xmmc_probe(struct platform_device *pdev)
#ifdef CONFIG_SOC_AU1200
ret = au1xmmc_dbdma_init(host);
if (ret)
- printk(KERN_INFO DRIVER_NAME ": DBDMA init failed; using PIO\n");
+ pr_info(DRIVER_NAME ": DBDMA init failed; using PIO\n");
#endif
#ifdef CONFIG_LEDS_CLASS
@@ -1056,7 +1056,7 @@ static int __devinit au1xmmc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
- printk(KERN_INFO DRIVER_NAME ": MMC Controller %d set up at %8.8X"
+ pr_info(DRIVER_NAME ": MMC Controller %d set up at %8.8X"
" (mode=%s)\n", pdev->id, host->iobase,
host->flags & HOST_F_DMA ? "dma" : "pio");
@@ -1188,7 +1188,7 @@ static int __init au1xmmc_init(void)
*/
memid = au1xxx_ddma_add_device(&au1xmmc_mem_dbdev);
if (!memid)
- printk(KERN_ERR "au1xmmc: cannot add memory dbdma dev\n");
+ pr_err("au1xmmc: cannot add memory dbdma dev\n");
#endif
return platform_driver_register(&au1xmmc_driver);
}
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index ff0f714b012c..3aaeb0841914 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -764,11 +764,29 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
return present;
}
+static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
+{
+ struct dw_mci_slot *slot = mmc_priv(mmc);
+ struct dw_mci *host = slot->host;
+ u32 int_mask;
+
+ /* Enable/disable Slot Specific SDIO interrupt */
+ int_mask = mci_readl(host, INTMASK);
+ if (enb) {
+ mci_writel(host, INTMASK,
+ (int_mask | (1 << SDMMC_INT_SDIO(slot->id))));
+ } else {
+ mci_writel(host, INTMASK,
+ (int_mask & ~(1 << SDMMC_INT_SDIO(slot->id))));
+ }
+}
+
static const struct mmc_host_ops dw_mci_ops = {
- .request = dw_mci_request,
- .set_ios = dw_mci_set_ios,
- .get_ro = dw_mci_get_ro,
- .get_cd = dw_mci_get_cd,
+ .request = dw_mci_request,
+ .set_ios = dw_mci_set_ios,
+ .get_ro = dw_mci_get_ro,
+ .get_cd = dw_mci_get_cd,
+ .enable_sdio_irq = dw_mci_enable_sdio_irq,
};
static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
@@ -1025,7 +1043,8 @@ static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
buf += len;
cnt -= len;
if (!sg_next(host->sg) || host->part_buf_count == 2) {
- mci_writew(host, DATA, host->part_buf16);
+ mci_writew(host, DATA(host->data_offset),
+ host->part_buf16);
host->part_buf_count = 0;
}
}
@@ -1042,21 +1061,23 @@ static void dw_mci_push_data16(struct dw_mci *host, void *buf, int cnt)
cnt -= len;
/* push data from aligned buffer into fifo */
for (i = 0; i < items; ++i)
- mci_writew(host, DATA, aligned_buf[i]);
+ mci_writew(host, DATA(host->data_offset),
+ aligned_buf[i]);
}
} else
#endif
{
u16 *pdata = buf;
for (; cnt >= 2; cnt -= 2)
- mci_writew(host, DATA, *pdata++);
+ mci_writew(host, DATA(host->data_offset), *pdata++);
buf = pdata;
}
/* put anything remaining in the part_buf */
if (cnt) {
dw_mci_set_part_bytes(host, buf, cnt);
if (!sg_next(host->sg))
- mci_writew(host, DATA, host->part_buf16);
+ mci_writew(host, DATA(host->data_offset),
+ host->part_buf16);
}
}
@@ -1071,7 +1092,8 @@ static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt)
int items = len >> 1;
int i;
for (i = 0; i < items; ++i)
- aligned_buf[i] = mci_readw(host, DATA);
+ aligned_buf[i] = mci_readw(host,
+ DATA(host->data_offset));
/* memcpy from aligned buffer into output buffer */
memcpy(buf, aligned_buf, len);
buf += len;
@@ -1082,11 +1104,11 @@ static void dw_mci_pull_data16(struct dw_mci *host, void *buf, int cnt)
{
u16 *pdata = buf;
for (; cnt >= 2; cnt -= 2)
- *pdata++ = mci_readw(host, DATA);
+ *pdata++ = mci_readw(host, DATA(host->data_offset));
buf = pdata;
}
if (cnt) {
- host->part_buf16 = mci_readw(host, DATA);
+ host->part_buf16 = mci_readw(host, DATA(host->data_offset));
dw_mci_pull_final_bytes(host, buf, cnt);
}
}
@@ -1099,7 +1121,8 @@ static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
buf += len;
cnt -= len;
if (!sg_next(host->sg) || host->part_buf_count == 4) {
- mci_writel(host, DATA, host->part_buf32);
+ mci_writel(host, DATA(host->data_offset),
+ host->part_buf32);
host->part_buf_count = 0;
}
}
@@ -1116,21 +1139,23 @@ static void dw_mci_push_data32(struct dw_mci *host, void *buf, int cnt)
cnt -= len;
/* push data from aligned buffer into fifo */
for (i = 0; i < items; ++i)
- mci_writel(host, DATA, aligned_buf[i]);
+ mci_writel(host, DATA(host->data_offset),
+ aligned_buf[i]);
}
} else
#endif
{
u32 *pdata = buf;
for (; cnt >= 4; cnt -= 4)
- mci_writel(host, DATA, *pdata++);
+ mci_writel(host, DATA(host->data_offset), *pdata++);
buf = pdata;
}
/* put anything remaining in the part_buf */
if (cnt) {
dw_mci_set_part_bytes(host, buf, cnt);
if (!sg_next(host->sg))
- mci_writel(host, DATA, host->part_buf32);
+ mci_writel(host, DATA(host->data_offset),
+ host->part_buf32);
}
}
@@ -1145,7 +1170,8 @@ static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt)
int items = len >> 2;
int i;
for (i = 0; i < items; ++i)
- aligned_buf[i] = mci_readl(host, DATA);
+ aligned_buf[i] = mci_readl(host,
+ DATA(host->data_offset));
/* memcpy from aligned buffer into output buffer */
memcpy(buf, aligned_buf, len);
buf += len;
@@ -1156,11 +1182,11 @@ static void dw_mci_pull_data32(struct dw_mci *host, void *buf, int cnt)
{
u32 *pdata = buf;
for (; cnt >= 4; cnt -= 4)
- *pdata++ = mci_readl(host, DATA);
+ *pdata++ = mci_readl(host, DATA(host->data_offset));
buf = pdata;
}
if (cnt) {
- host->part_buf32 = mci_readl(host, DATA);
+ host->part_buf32 = mci_readl(host, DATA(host->data_offset));
dw_mci_pull_final_bytes(host, buf, cnt);
}
}
@@ -1173,7 +1199,8 @@ static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
buf += len;
cnt -= len;
if (!sg_next(host->sg) || host->part_buf_count == 8) {
- mci_writew(host, DATA, host->part_buf);
+ mci_writew(host, DATA(host->data_offset),
+ host->part_buf);
host->part_buf_count = 0;
}
}
@@ -1190,21 +1217,23 @@ static void dw_mci_push_data64(struct dw_mci *host, void *buf, int cnt)
cnt -= len;
/* push data from aligned buffer into fifo */
for (i = 0; i < items; ++i)
- mci_writeq(host, DATA, aligned_buf[i]);
+ mci_writeq(host, DATA(host->data_offset),
+ aligned_buf[i]);
}
} else
#endif
{
u64 *pdata = buf;
for (; cnt >= 8; cnt -= 8)
- mci_writeq(host, DATA, *pdata++);
+ mci_writeq(host, DATA(host->data_offset), *pdata++);
buf = pdata;
}
/* put anything remaining in the part_buf */
if (cnt) {
dw_mci_set_part_bytes(host, buf, cnt);
if (!sg_next(host->sg))
- mci_writeq(host, DATA, host->part_buf);
+ mci_writeq(host, DATA(host->data_offset),
+ host->part_buf);
}
}
@@ -1219,7 +1248,8 @@ static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt)
int items = len >> 3;
int i;
for (i = 0; i < items; ++i)
- aligned_buf[i] = mci_readq(host, DATA);
+ aligned_buf[i] = mci_readq(host,
+ DATA(host->data_offset));
/* memcpy from aligned buffer into output buffer */
memcpy(buf, aligned_buf, len);
buf += len;
@@ -1230,11 +1260,11 @@ static void dw_mci_pull_data64(struct dw_mci *host, void *buf, int cnt)
{
u64 *pdata = buf;
for (; cnt >= 8; cnt -= 8)
- *pdata++ = mci_readq(host, DATA);
+ *pdata++ = mci_readq(host, DATA(host->data_offset));
buf = pdata;
}
if (cnt) {
- host->part_buf = mci_readq(host, DATA);
+ host->part_buf = mci_readq(host, DATA(host->data_offset));
dw_mci_pull_final_bytes(host, buf, cnt);
}
}
@@ -1406,6 +1436,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
struct dw_mci *host = dev_id;
u32 status, pending;
unsigned int pass_count = 0;
+ int i;
do {
status = mci_readl(host, RINTSTS);
@@ -1477,6 +1508,15 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
queue_work(dw_mci_card_workqueue, &host->card_work);
}
+ /* Handle SDIO Interrupts */
+ for (i = 0; i < host->num_slots; i++) {
+ struct dw_mci_slot *slot = host->slot[i];
+ if (pending & SDMMC_INT_SDIO(i)) {
+ mci_writel(host, RINTSTS, SDMMC_INT_SDIO(i));
+ mmc_signal_sdio_irq(slot->mmc);
+ }
+ }
+
} while (pass_count++ < 5);
#ifdef CONFIG_MMC_DW_IDMAC
@@ -1673,7 +1713,7 @@ static int __init dw_mci_init_slot(struct dw_mci *host, unsigned int id)
host->vmmc = regulator_get(mmc_dev(mmc), "vmmc");
if (IS_ERR(host->vmmc)) {
- printk(KERN_INFO "%s: no vmmc regulator found\n", mmc_hostname(mmc));
+ pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
host->vmmc = NULL;
} else
regulator_enable(host->vmmc);
@@ -1924,6 +1964,18 @@ static int dw_mci_probe(struct platform_device *pdev)
}
/*
+ * In 2.40a spec, Data offset is changed.
+ * Need to check the version-id and set data-offset for DATA register.
+ */
+ host->verid = SDMMC_GET_VERID(mci_readl(host, VERID));
+ dev_info(&pdev->dev, "Version ID is %04x\n", host->verid);
+
+ if (host->verid < DW_MMC_240A)
+ host->data_offset = DATA_OFFSET;
+ else
+ host->data_offset = DATA_240A_OFFSET;
+
+ /*
* Enable interrupts for command done, data over, data empty, card det,
* receive ready and error such as transmit, receive timeout, crc error
*/
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 027d37735394..72c071f6e001 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -14,6 +14,8 @@
#ifndef _DW_MMC_H_
#define _DW_MMC_H_
+#define DW_MMC_240A 0x240a
+
#define SDMMC_CTRL 0x000
#define SDMMC_PWREN 0x004
#define SDMMC_CLKDIV 0x008
@@ -51,7 +53,14 @@
#define SDMMC_IDINTEN 0x090
#define SDMMC_DSCADDR 0x094
#define SDMMC_BUFADDR 0x098
-#define SDMMC_DATA 0x100
+#define SDMMC_DATA(x) (x)
+
+/*
+ * Data offset is difference according to Version
+ * Lower than 2.40a : data register offest is 0x100
+ */
+#define DATA_OFFSET 0x100
+#define DATA_240A_OFFSET 0x200
/* shift bit field */
#define _SBF(f, v) ((v) << (f))
@@ -82,7 +91,7 @@
#define SDMMC_CTYPE_4BIT BIT(0)
#define SDMMC_CTYPE_1BIT 0
/* Interrupt status & mask register defines */
-#define SDMMC_INT_SDIO BIT(16)
+#define SDMMC_INT_SDIO(n) BIT(16 + (n))
#define SDMMC_INT_EBE BIT(15)
#define SDMMC_INT_ACD BIT(14)
#define SDMMC_INT_SBE BIT(13)
@@ -130,6 +139,8 @@
#define SDMMC_IDMAC_ENABLE BIT(7)
#define SDMMC_IDMAC_FB BIT(1)
#define SDMMC_IDMAC_SWRESET BIT(0)
+/* Version ID register define */
+#define SDMMC_GET_VERID(x) ((x) & 0xFFFF)
/* Register access macros */
#define mci_readl(dev, reg) \
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index 881f7ba545ae..ea0f3cedef21 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -942,7 +942,7 @@ static int __init imxmci_probe(struct platform_device *pdev)
int ret = 0, irq;
u16 rev_no;
- printk(KERN_INFO "i.MX mmc driver\n");
+ pr_info("i.MX mmc driver\n");
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 7c1e16aaf17f..92946b84e9fa 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -27,6 +27,7 @@
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <linux/bio.h>
#include <linux/dma-mapping.h>
#include <linux/crc7.h>
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 7be8db0f9f7d..50b5f9926f64 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -466,7 +466,7 @@ static void mmci_get_next_data(struct mmci_host *host, struct mmc_data *data)
struct mmci_host_next *next = &host->next_data;
if (data->host_cookie && data->host_cookie != next->cookie) {
- printk(KERN_WARNING "[%s] invalid cookie: data->host_cookie %d"
+ pr_warning("[%s] invalid cookie: data->host_cookie %d"
" host->next_data.cookie %d\n",
__func__, data->host_cookie, host->next_data.cookie);
data->host_cookie = 0;
@@ -531,7 +531,7 @@ static void mmci_post_request(struct mmc_host *mmc, struct mmc_request *mrq,
if (chan) {
if (err)
dmaengine_terminate_all(chan);
- if (err || data->host_cookie)
+ if (data->host_cookie)
dma_unmap_sg(mmc_dev(host->mmc), data->sg,
data->sg_len, dir);
mrq->data->host_cookie = 0;
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index a4c865a5286b..80d8eb143b48 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -213,7 +213,8 @@ msmsdcc_dma_exec_func(struct msm_dmov_cmd *cmd)
msmsdcc_writel(host, host->cmd_timeout, MMCIDATATIMER);
msmsdcc_writel(host, (unsigned int)host->curr.xfer_size,
MMCIDATALENGTH);
- msmsdcc_writel(host, host->cmd_pio_irqmask, MMCIMASK1);
+ msmsdcc_writel(host, (msmsdcc_readl(host, MMCIMASK0) &
+ (~MCI_IRQ_PIO)) | host->cmd_pio_irqmask, MMCIMASK0);
msmsdcc_writel(host, host->cmd_datactrl, MMCIDATACTRL);
if (host->cmd_cmd) {
@@ -388,7 +389,7 @@ static int msmsdcc_config_dma(struct msmsdcc_host *host, struct mmc_data *data)
n = dma_map_sg(mmc_dev(host->mmc), host->dma.sg,
host->dma.num_ents, host->dma.dir);
if (n == 0) {
- printk(KERN_ERR "%s: Unable to map in all sg elements\n",
+ pr_err("%s: Unable to map in all sg elements\n",
mmc_hostname(host->mmc));
host->dma.sg = NULL;
host->dma.num_ents = 0;
@@ -474,7 +475,7 @@ msmsdcc_start_command_deferred(struct msmsdcc_host *host,
*c |= MCI_CSPM_MCIABORT;
if (host->curr.cmd != NULL) {
- printk(KERN_ERR "%s: Overlapping command requests\n",
+ pr_err("%s: Overlapping command requests\n",
mmc_hostname(host->mmc));
}
host->curr.cmd = cmd;
@@ -543,7 +544,9 @@ msmsdcc_start_data(struct msmsdcc_host *host, struct mmc_data *data,
msmsdcc_writel(host, host->curr.xfer_size, MMCIDATALENGTH);
- msmsdcc_writel(host, pio_irqmask, MMCIMASK1);
+ msmsdcc_writel(host, (msmsdcc_readl(host, MMCIMASK0) &
+ (~MCI_IRQ_PIO)) | pio_irqmask, MMCIMASK0);
+
msmsdcc_writel(host, datactrl, MMCIDATACTRL);
if (cmd) {
@@ -659,8 +662,13 @@ msmsdcc_pio_irq(int irq, void *dev_id)
{
struct msmsdcc_host *host = dev_id;
uint32_t status;
+ u32 mci_mask0;
status = msmsdcc_readl(host, MMCISTATUS);
+ mci_mask0 = msmsdcc_readl(host, MMCIMASK0);
+
+ if (((mci_mask0 & status) & MCI_IRQ_PIO) == 0)
+ return IRQ_NONE;
do {
unsigned long flags;
@@ -719,10 +727,12 @@ msmsdcc_pio_irq(int irq, void *dev_id)
} while (1);
if (status & MCI_RXACTIVE && host->curr.xfer_remain < MCI_FIFOSIZE)
- msmsdcc_writel(host, MCI_RXDATAAVLBLMASK, MMCIMASK1);
+ msmsdcc_writel(host, (mci_mask0 & (~MCI_IRQ_PIO)) |
+ MCI_RXDATAAVLBLMASK, MMCIMASK0);
if (!host->curr.xfer_remain)
- msmsdcc_writel(host, 0, MMCIMASK1);
+ msmsdcc_writel(host, (mci_mask0 & (~MCI_IRQ_PIO)) | 0,
+ MMCIMASK0);
return IRQ_HANDLED;
}
@@ -854,6 +864,8 @@ msmsdcc_irq(int irq, void *dev_id)
do {
status = msmsdcc_readl(host, MMCISTATUS);
status &= msmsdcc_readl(host, MMCIMASK0);
+ if ((status & (~MCI_IRQ_PIO)) == 0)
+ break;
msmsdcc_writel(host, status, MMCICLEAR);
if (status & MCI_SDIOINTR)
@@ -939,7 +951,7 @@ static void msmsdcc_setup_gpio(struct msmsdcc_host *host, bool enable)
struct msm_mmc_gpio_data *curr;
int i, rc = 0;
- if (!host->plat->gpio_data && host->gpio_config_status == enable)
+ if (!host->plat->gpio_data || host->gpio_config_status == enable)
return;
curr = host->plat->gpio_data;
@@ -1052,10 +1064,19 @@ static void msmsdcc_enable_sdio_irq(struct mmc_host *mmc, int enable)
spin_unlock_irqrestore(&host->lock, flags);
}
+static void msmsdcc_init_card(struct mmc_host *mmc, struct mmc_card *card)
+{
+ struct msmsdcc_host *host = mmc_priv(mmc);
+
+ if (host->plat->init_card)
+ host->plat->init_card(card);
+}
+
static const struct mmc_host_ops msmsdcc_ops = {
.request = msmsdcc_request,
.set_ios = msmsdcc_set_ios,
.enable_sdio_irq = msmsdcc_enable_sdio_irq,
+ .init_card = msmsdcc_init_card,
};
static void
@@ -1092,7 +1113,7 @@ msmsdcc_platform_status_irq(int irq, void *dev_id)
{
struct msmsdcc_host *host = dev_id;
- printk(KERN_DEBUG "%s: %d\n", __func__, irq);
+ pr_debug("%s: %d\n", __func__, irq);
msmsdcc_check_status((unsigned long) host);
return IRQ_HANDLED;
}
@@ -1102,7 +1123,7 @@ msmsdcc_status_notify_cb(int card_present, void *dev_id)
{
struct msmsdcc_host *host = dev_id;
- printk(KERN_DEBUG "%s: card_present %d\n", mmc_hostname(host->mmc),
+ pr_debug("%s: card_present %d\n", mmc_hostname(host->mmc),
card_present);
msmsdcc_check_status((unsigned long) host);
}
@@ -1150,7 +1171,6 @@ msmsdcc_probe(struct platform_device *pdev)
struct msmsdcc_host *host;
struct mmc_host *mmc;
struct resource *cmd_irqres = NULL;
- struct resource *pio_irqres = NULL;
struct resource *stat_irqres = NULL;
struct resource *memres = NULL;
struct resource *dmares = NULL;
@@ -1175,12 +1195,10 @@ msmsdcc_probe(struct platform_device *pdev)
dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
cmd_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
"cmd_irq");
- pio_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
- "pio_irq");
stat_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
"status_irq");
- if (!cmd_irqres || !pio_irqres || !memres) {
+ if (!cmd_irqres || !memres) {
pr_err("%s: Invalid resource\n", __func__);
return -ENXIO;
}
@@ -1200,17 +1218,20 @@ msmsdcc_probe(struct platform_device *pdev)
host->plat = plat;
host->mmc = mmc;
host->curr.cmd = NULL;
+ init_timer(&host->busclk_timer);
+ host->busclk_timer.data = (unsigned long) host;
+ host->busclk_timer.function = msmsdcc_busclk_expired;
+
host->cmdpoll = 1;
host->base = ioremap(memres->start, PAGE_SIZE);
if (!host->base) {
ret = -ENOMEM;
- goto out;
+ goto host_free;
}
host->cmd_irqres = cmd_irqres;
- host->pio_irqres = pio_irqres;
host->memres = memres;
host->dmares = dmares;
spin_lock_init(&host->lock);
@@ -1221,13 +1242,19 @@ msmsdcc_probe(struct platform_device *pdev)
/*
* Setup DMA
*/
- msmsdcc_init_dma(host);
+ if (host->dmares) {
+ ret = msmsdcc_init_dma(host);
+ if (ret)
+ goto ioremap_free;
+ } else {
+ host->dma.channel = -1;
+ }
/* Get our clocks */
host->pclk = clk_get(&pdev->dev, "sdc_pclk");
if (IS_ERR(host->pclk)) {
ret = PTR_ERR(host->pclk);
- goto host_free;
+ goto dma_free;
}
host->clk = clk_get(&pdev->dev, "sdc_clk");
@@ -1236,17 +1263,17 @@ msmsdcc_probe(struct platform_device *pdev)
goto pclk_put;
}
- /* Enable clocks */
- ret = msmsdcc_enable_clocks(host);
- if (ret)
- goto clk_put;
-
ret = clk_set_rate(host->clk, msmsdcc_fmin);
if (ret) {
pr_err("%s: Clock rate set failed (%d)\n", __func__, ret);
- goto clk_disable;
+ goto clk_put;
}
+ /* Enable clocks */
+ ret = msmsdcc_enable_clocks(host);
+ if (ret)
+ goto clk_put;
+
host->pclk_rate = clk_get_rate(host->pclk);
host->clk_rate = clk_get_rate(host->clk);
@@ -1316,16 +1343,12 @@ msmsdcc_probe(struct platform_device *pdev)
host->eject = !host->oldstat;
}
- init_timer(&host->busclk_timer);
- host->busclk_timer.data = (unsigned long) host;
- host->busclk_timer.function = msmsdcc_busclk_expired;
-
ret = request_irq(cmd_irqres->start, msmsdcc_irq, IRQF_SHARED,
DRIVER_NAME " (cmd)", host);
if (ret)
goto stat_irq_free;
- ret = request_irq(pio_irqres->start, msmsdcc_pio_irq, IRQF_SHARED,
+ ret = request_irq(cmd_irqres->start, msmsdcc_pio_irq, IRQF_SHARED,
DRIVER_NAME " (pio)", host);
if (ret)
goto cmd_irq_free;
@@ -1368,6 +1391,13 @@ msmsdcc_probe(struct platform_device *pdev)
clk_put(host->clk);
pclk_put:
clk_put(host->pclk);
+dma_free:
+ if (host->dmares)
+ dma_free_coherent(NULL, sizeof(struct msmsdcc_nc_dmadata),
+ host->dma.nc, host->dma.nc_busaddr);
+ioremap_free:
+ tasklet_kill(&host->dma_tlet);
+ iounmap(host->base);
host_free:
mmc_free_host(mmc);
out:
diff --git a/drivers/mmc/host/msm_sdcc.h b/drivers/mmc/host/msm_sdcc.h
index 42d7bbc977c5..402028d16b86 100644
--- a/drivers/mmc/host/msm_sdcc.h
+++ b/drivers/mmc/host/msm_sdcc.h
@@ -140,6 +140,11 @@
MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \
MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATAENDMASK|MCI_PROGDONEMASK)
+#define MCI_IRQ_PIO \
+ (MCI_RXDATAAVLBLMASK | MCI_TXDATAAVLBLMASK | MCI_RXFIFOEMPTYMASK | \
+ MCI_TXFIFOEMPTYMASK | MCI_RXFIFOFULLMASK | MCI_TXFIFOFULLMASK | \
+ MCI_RXFIFOHALFFULLMASK | MCI_TXFIFOHALFEMPTYMASK | \
+ MCI_RXACTIVEMASK | MCI_TXACTIVEMASK)
/*
* The size of the FIFO in bytes.
*/
@@ -202,7 +207,6 @@ struct msmsdcc_stats {
struct msmsdcc_host {
struct resource *cmd_irqres;
- struct resource *pio_irqres;
struct resource *memres;
struct resource *dmares;
void __iomem *base;
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index a5bf60e01af4..211a4959c293 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -117,7 +117,7 @@ static int mvsd_setup_data(struct mvsd_host *host, struct mmc_data *data)
host->pio_size = data->blocks * data->blksz;
host->pio_ptr = sg_virt(data->sg);
if (!nodma)
- printk(KERN_DEBUG "%s: fallback to PIO for data "
+ pr_debug("%s: fallback to PIO for data "
"at 0x%p size %d\n",
mmc_hostname(host->mmc),
host->pio_ptr, host->pio_size);
@@ -471,7 +471,7 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
if (mrq->data)
err_status = mvsd_finish_data(host, mrq->data, err_status);
if (err_status) {
- printk(KERN_ERR "%s: unhandled error status %#04x\n",
+ pr_err("%s: unhandled error status %#04x\n",
mmc_hostname(host->mmc), err_status);
cmd->error = -ENOMSG;
}
@@ -489,7 +489,7 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
if (irq_handled)
return IRQ_HANDLED;
- printk(KERN_ERR "%s: unhandled interrupt status=0x%04x en=0x%04x "
+ pr_err("%s: unhandled interrupt status=0x%04x en=0x%04x "
"pio=%d\n", mmc_hostname(host->mmc), intr_status,
host->intr_en, host->pio_size);
return IRQ_NONE;
@@ -505,9 +505,9 @@ static void mvsd_timeout_timer(unsigned long data)
spin_lock_irqsave(&host->lock, flags);
mrq = host->mrq;
if (mrq) {
- printk(KERN_ERR "%s: Timeout waiting for hardware interrupt.\n",
+ pr_err("%s: Timeout waiting for hardware interrupt.\n",
mmc_hostname(host->mmc));
- printk(KERN_ERR "%s: hw_state=0x%04x, intr_status=0x%04x "
+ pr_err("%s: hw_state=0x%04x, intr_status=0x%04x "
"intr_en=0x%04x\n", mmc_hostname(host->mmc),
mvsd_read(MVSD_HW_STATE),
mvsd_read(MVSD_NOR_INTR_STATUS),
@@ -762,7 +762,7 @@ static int __init mvsd_probe(struct platform_device *pdev)
ret = request_irq(irq, mvsd_irq, 0, DRIVER_NAME, host);
if (ret) {
- printk(KERN_ERR "%s: cannot assign irq %d\n", DRIVER_NAME, irq);
+ pr_err("%s: cannot assign irq %d\n", DRIVER_NAME, irq);
goto out;
} else
host->irq = irq;
@@ -802,7 +802,7 @@ static int __init mvsd_probe(struct platform_device *pdev)
if (ret)
goto out;
- printk(KERN_NOTICE "%s: %s driver initialized, ",
+ pr_notice("%s: %s driver initialized, ",
mmc_hostname(mmc), DRIVER_NAME);
if (host->gpio_card_detect)
printk("using GPIO %d for card detection\n",
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 14aa213b00da..f48743de4673 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -842,7 +842,7 @@ static int mxcmci_probe(struct platform_device *pdev)
int ret = 0, irq;
dma_cap_mask_t mask;
- printk(KERN_INFO "i.MX SDHC driver\n");
+ pr_info("i.MX SDHC driver\n");
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index d513d47364d0..99b449d26a4d 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -37,6 +37,7 @@
#include <linux/mmc/sdio.h>
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
+#include <linux/module.h>
#include <mach/mxs.h>
#include <mach/common.h>
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 21e4a799df48..e8ff12396680 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -450,15 +450,14 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
* framework is fixed, we need a workaround like this
* (which is safe for MMC, but not in general).
*/
- if (regulator_is_enabled(host->vcc) > 0) {
- regulator_enable(host->vcc);
- regulator_disable(host->vcc);
- }
- if (host->vcc_aux) {
- if (regulator_is_enabled(reg) > 0) {
- regulator_enable(reg);
- regulator_disable(reg);
- }
+ if (regulator_is_enabled(host->vcc) > 0 ||
+ (host->vcc_aux && regulator_is_enabled(host->vcc_aux))) {
+ int vdd = ffs(mmc_slot(host).ocr_mask) - 1;
+
+ mmc_slot(host).set_power(host->dev, host->slot_id,
+ 1, vdd);
+ mmc_slot(host).set_power(host->dev, host->slot_id,
+ 0, 0);
}
}
@@ -1264,14 +1263,14 @@ static void omap_hsmmc_protect_card(struct omap_hsmmc_host *host)
host->reqs_blocked = 0;
if (mmc_slot(host).get_cover_state(host->dev, host->slot_id)) {
if (host->protect_card) {
- printk(KERN_INFO "%s: cover is closed, "
+ pr_info("%s: cover is closed, "
"card is now accessible\n",
mmc_hostname(host->mmc));
host->protect_card = 0;
}
} else {
if (!host->protect_card) {
- printk(KERN_INFO "%s: cover is open, "
+ pr_info"%s: cover is open, "
"card is now inaccessible\n",
mmc_hostname(host->mmc));
host->protect_card = 1;
@@ -1422,7 +1421,7 @@ static int omap_hsmmc_pre_dma_transfer(struct omap_hsmmc_host *host,
if (!next && data->host_cookie &&
data->host_cookie != host->next_data.cookie) {
- printk(KERN_WARNING "[%s] invalid cookie: data->host_cookie %d"
+ pr_warning("[%s] invalid cookie: data->host_cookie %d"
" host->next_data.cookie %d\n",
__func__, data->host_cookie, host->next_data.cookie);
data->host_cookie = 0;
@@ -1943,6 +1942,10 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
omap_hsmmc_context_save(host);
mmc->caps |= MMC_CAP_DISABLE;
+ if (host->pdata->controller_flags & OMAP_HSMMC_BROKEN_MULTIBLOCK_READ) {
+ dev_info(&pdev->dev, "multiblock reads disabled due to 35xx erratum 2.1.1.128; MMC read performance may suffer\n");
+ mmc->caps2 |= MMC_CAP2_NO_MULTI_READ;
+ }
pm_runtime_enable(host->dev);
pm_runtime_get_sync(host->dev);
@@ -2015,7 +2018,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
}
/* Request IRQ for MMC operations */
- ret = request_irq(host->irq, omap_hsmmc_irq, IRQF_DISABLED,
+ ret = request_irq(host->irq, omap_hsmmc_irq, 0,
mmc_hostname(mmc), host);
if (ret) {
dev_dbg(mmc_dev(host->mmc), "Unable to grab HSMMC IRQ\n");
@@ -2043,8 +2046,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
if ((mmc_slot(host).card_detect_irq)) {
ret = request_irq(mmc_slot(host).card_detect_irq,
omap_hsmmc_cd_handler,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
- | IRQF_DISABLED,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
mmc_hostname(mmc), host);
if (ret) {
dev_dbg(mmc_dev(host->mmc),
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 7257738fd7da..fc4356e00d46 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -558,7 +558,7 @@ static void pxamci_dma_irq(int dma, void *devid)
if (dcsr & DCSR_ENDINTR) {
writel(BUF_PART_FULL, host->base + MMC_PRTBUF);
} else {
- printk(KERN_ERR "%s: DMA error on channel %d (DCSR=%#x)\n",
+ pr_err("%s: DMA error on channel %d (DCSR=%#x)\n",
mmc_hostname(host->mmc), dma, dcsr);
host->data->error = -EIO;
pxamci_data_done(host, 0);
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index a04f87d7ee3d..d2856b6b2a62 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -247,7 +247,7 @@ static void s3cmci_check_sdio_irq(struct s3cmci_host *host)
{
if (host->sdio_irqen) {
if (gpio_get_value(S3C2410_GPE(8)) == 0) {
- printk(KERN_DEBUG "%s: signalling irq\n", __func__);
+ pr_debug("%s: signalling irq\n", __func__);
mmc_signal_sdio_irq(host->mmc);
}
}
@@ -344,7 +344,7 @@ static void s3cmci_disable_irq(struct s3cmci_host *host, bool transfer)
local_irq_save(flags);
- //printk(KERN_DEBUG "%s: transfer %d\n", __func__, transfer);
+ /* pr_debug("%s: transfer %d\n", __func__, transfer); */
host->irq_disabled = transfer;
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 4dc0028086a3..ae57769ba50d 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -32,6 +32,15 @@
/* VENDOR SPEC register */
#define SDHCI_VENDOR_SPEC 0xC0
#define SDHCI_VENDOR_SPEC_SDIO_QUIRK 0x00000002
+#define SDHCI_MIX_CTRL 0x48
+
+/*
+ * There is an INT DMA ERR mis-match between eSDHC and STD SDHC SPEC:
+ * Bit25 is used in STD SPEC, and is reserved in fsl eSDHC design,
+ * but bit28 is used as the INT DMA ERR in fsl eSDHC design.
+ * Define this macro DMA error INT for fsl eSDHC
+ */
+#define SDHCI_INT_VENDOR_SPEC_DMA_ERR 0x10000000
/*
* The CMDTYPE of the CMD register (offset 0xE) should be set to
@@ -51,6 +60,7 @@ enum imx_esdhc_type {
IMX35_ESDHC,
IMX51_ESDHC,
IMX53_ESDHC,
+ IMX6Q_USDHC,
};
struct pltfm_imx_data {
@@ -74,6 +84,9 @@ static struct platform_device_id imx_esdhc_devtype[] = {
.name = "sdhci-esdhc-imx53",
.driver_data = IMX53_ESDHC,
}, {
+ .name = "sdhci-usdhc-imx6q",
+ .driver_data = IMX6Q_USDHC,
+ }, {
/* sentinel */
}
};
@@ -84,6 +97,7 @@ static const struct of_device_id imx_esdhc_dt_ids[] = {
{ .compatible = "fsl,imx35-esdhc", .data = &imx_esdhc_devtype[IMX35_ESDHC], },
{ .compatible = "fsl,imx51-esdhc", .data = &imx_esdhc_devtype[IMX51_ESDHC], },
{ .compatible = "fsl,imx53-esdhc", .data = &imx_esdhc_devtype[IMX53_ESDHC], },
+ { .compatible = "fsl,imx6q-usdhc", .data = &imx_esdhc_devtype[IMX6Q_USDHC], },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx_esdhc_dt_ids);
@@ -108,6 +122,11 @@ static inline int is_imx53_esdhc(struct pltfm_imx_data *data)
return data->devtype == IMX53_ESDHC;
}
+static inline int is_imx6q_usdhc(struct pltfm_imx_data *data)
+{
+ return data->devtype == IMX6Q_USDHC;
+}
+
static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg)
{
void __iomem *base = host->ioaddr + (reg & ~0x3);
@@ -135,6 +154,27 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
val |= SDHCI_CARD_PRESENT;
}
+ if (unlikely(reg == SDHCI_CAPABILITIES)) {
+ /* In FSL esdhc IC module, only bit20 is used to indicate the
+ * ADMA2 capability of esdhc, but this bit is messed up on
+ * some SOCs (e.g. on MX25, MX35 this bit is set, but they
+ * don't actually support ADMA2). So set the BROKEN_ADMA
+ * uirk on MX25/35 platforms.
+ */
+
+ if (val & SDHCI_CAN_DO_ADMA1) {
+ val &= ~SDHCI_CAN_DO_ADMA1;
+ val |= SDHCI_CAN_DO_ADMA2;
+ }
+ }
+
+ if (unlikely(reg == SDHCI_INT_STATUS)) {
+ if (val & SDHCI_INT_VENDOR_SPEC_DMA_ERR) {
+ val &= ~SDHCI_INT_VENDOR_SPEC_DMA_ERR;
+ val |= SDHCI_INT_ADMA_ERROR;
+ }
+ }
+
return val;
}
@@ -179,13 +219,28 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
writel(v, host->ioaddr + SDHCI_VENDOR_SPEC);
}
+ if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) {
+ if (val & SDHCI_INT_ADMA_ERROR) {
+ val &= ~SDHCI_INT_ADMA_ERROR;
+ val |= SDHCI_INT_VENDOR_SPEC_DMA_ERR;
+ }
+ }
+
writel(val, host->ioaddr + reg);
}
static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
{
- if (unlikely(reg == SDHCI_HOST_VERSION))
- reg ^= 2;
+ if (unlikely(reg == SDHCI_HOST_VERSION)) {
+ u16 val = readw(host->ioaddr + (reg ^ 2));
+ /*
+ * uSDHC supports SDHCI v3.0, but it's encoded as value
+ * 0x3 in host controller version register, which violates
+ * SDHCI_SPEC_300 definition. Work it around here.
+ */
+ if ((val & SDHCI_SPEC_VER_MASK) == 3)
+ return --val;
+ }
return readw(host->ioaddr + reg);
}
@@ -216,8 +271,17 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
if ((host->cmd->opcode == MMC_STOP_TRANSMISSION)
&& (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
val |= SDHCI_CMD_ABORTCMD;
- writel(val << 16 | imx_data->scratchpad,
- host->ioaddr + SDHCI_TRANSFER_MODE);
+
+ if (is_imx6q_usdhc(imx_data)) {
+ u32 m = readl(host->ioaddr + SDHCI_MIX_CTRL);
+ m = imx_data->scratchpad | (m & 0xffff0000);
+ writel(m, host->ioaddr + SDHCI_MIX_CTRL);
+ writel(val << 16,
+ host->ioaddr + SDHCI_TRANSFER_MODE);
+ } else {
+ writel(val << 16 | imx_data->scratchpad,
+ host->ioaddr + SDHCI_TRANSFER_MODE);
+ }
return;
case SDHCI_BLOCK_SIZE:
val &= ~SDHCI_MAKE_BLKSZ(0x7, 0);
@@ -311,9 +375,10 @@ static struct sdhci_ops sdhci_esdhc_ops = {
};
static struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
- .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_ADMA
+ .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_NO_HISPD_BIT
+ | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
+ | SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC
| SDHCI_QUIRK_BROKEN_CARD_DETECTION,
- /* ADMA has issues. Might be fixable */
.ops = &sdhci_esdhc_ops,
};
@@ -405,7 +470,8 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev)
if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
/* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */
- host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK;
+ host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK
+ | SDHCI_QUIRK_BROKEN_ADMA;
if (is_imx53_esdhc(imx_data))
imx_data->flags |= ESDHC_FLAG_MULTIBLK_NO_INT;
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index fe604df65011..59e9d003e589 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -1,7 +1,7 @@
/*
* Freescale eSDHC controller driver.
*
- * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ * Copyright (c) 2007, 2010 Freescale Semiconductor, Inc.
* Copyright (c) 2009 MontaVista Software, Inc.
*
* Authors: Xiaobo Xie <X.Xie@freescale.com>
@@ -15,6 +15,7 @@
#include <linux/io.h>
#include <linux/delay.h>
+#include <linux/module.h>
#include <linux/mmc/host.h>
#include "sdhci-pltfm.h"
#include "sdhci-esdhc.h"
@@ -22,11 +23,21 @@
static u16 esdhc_readw(struct sdhci_host *host, int reg)
{
u16 ret;
+ int base = reg & ~0x3;
+ int shift = (reg & 0x2) * 8;
if (unlikely(reg == SDHCI_HOST_VERSION))
- ret = in_be16(host->ioaddr + reg);
+ ret = in_be32(host->ioaddr + base) & 0xffff;
else
- ret = sdhci_be32bs_readw(host, reg);
+ ret = (in_be32(host->ioaddr + base) >> shift) & 0xffff;
+ return ret;
+}
+
+static u8 esdhc_readb(struct sdhci_host *host, int reg)
+{
+ int base = reg & ~0x3;
+ int shift = (reg & 0x3) * 8;
+ u8 ret = (in_be32(host->ioaddr + base) >> shift) & 0xff;
return ret;
}
@@ -74,7 +85,7 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
static struct sdhci_ops sdhci_esdhc_ops = {
.read_l = sdhci_be32bs_readl,
.read_w = esdhc_readw,
- .read_b = sdhci_be32bs_readb,
+ .read_b = esdhc_readb,
.write_l = sdhci_be32bs_writel,
.write_w = esdhc_writew,
.write_b = esdhc_writeb,
diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
index 735be131dca9..9b0d794a4f69 100644
--- a/drivers/mmc/host/sdhci-of-hlwd.c
+++ b/drivers/mmc/host/sdhci-of-hlwd.c
@@ -20,6 +20,7 @@
*/
#include <linux/delay.h>
+#include <linux/module.h>
#include <linux/mmc/host.h>
#include "sdhci-pltfm.h"
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 26c528648f3c..d833d9c2f7e3 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -14,6 +14,7 @@
#include <linux/delay.h>
#include <linux/highmem.h>
+#include <linux/module.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
@@ -21,6 +22,9 @@
#include <linux/mmc/host.h>
#include <linux/scatterlist.h>
#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/sfi.h>
+#include <linux/pm_runtime.h>
#include "sdhci.h"
@@ -43,6 +47,7 @@ struct sdhci_pci_slot;
struct sdhci_pci_fixes {
unsigned int quirks;
+ bool allow_runtime_pm;
int (*probe) (struct sdhci_pci_chip *);
@@ -59,12 +64,16 @@ struct sdhci_pci_slot {
struct sdhci_host *host;
int pci_bar;
+ int rst_n_gpio;
+ int cd_gpio;
+ int cd_irq;
};
struct sdhci_pci_chip {
struct pci_dev *pdev;
unsigned int quirks;
+ bool allow_runtime_pm;
const struct sdhci_pci_fixes *fixes;
int num_slots; /* Slots on controller */
@@ -163,12 +172,129 @@ static int mrst_hc_probe(struct sdhci_pci_chip *chip)
return 0;
}
+/* Medfield eMMC hardware reset GPIOs */
+static int mfd_emmc0_rst_gpio = -EINVAL;
+static int mfd_emmc1_rst_gpio = -EINVAL;
+
+static int mfd_emmc_gpio_parse(struct sfi_table_header *table)
+{
+ struct sfi_table_simple *sb = (struct sfi_table_simple *)table;
+ struct sfi_gpio_table_entry *entry;
+ int i, num;
+
+ num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
+ entry = (struct sfi_gpio_table_entry *)sb->pentry;
+
+ for (i = 0; i < num; i++, entry++) {
+ if (!strncmp(entry->pin_name, "emmc0_rst", SFI_NAME_LEN))
+ mfd_emmc0_rst_gpio = entry->pin_no;
+ else if (!strncmp(entry->pin_name, "emmc1_rst", SFI_NAME_LEN))
+ mfd_emmc1_rst_gpio = entry->pin_no;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+
+static irqreturn_t mfd_sd_cd(int irq, void *dev_id)
+{
+ struct sdhci_pci_slot *slot = dev_id;
+ struct sdhci_host *host = slot->host;
+
+ mmc_detect_change(host->mmc, msecs_to_jiffies(200));
+ return IRQ_HANDLED;
+}
+
+#define MFLD_SD_CD_PIN 69
+
+static int mfd_sd_probe_slot(struct sdhci_pci_slot *slot)
+{
+ int err, irq, gpio = MFLD_SD_CD_PIN;
+
+ slot->cd_gpio = -EINVAL;
+ slot->cd_irq = -EINVAL;
+
+ err = gpio_request(gpio, "sd_cd");
+ if (err < 0)
+ goto out;
+
+ err = gpio_direction_input(gpio);
+ if (err < 0)
+ goto out_free;
+
+ irq = gpio_to_irq(gpio);
+ if (irq < 0)
+ goto out_free;
+
+ err = request_irq(irq, mfd_sd_cd, IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING, "sd_cd", slot);
+ if (err)
+ goto out_free;
+
+ slot->cd_gpio = gpio;
+ slot->cd_irq = irq;
+ slot->host->quirks2 |= SDHCI_QUIRK2_OWN_CARD_DETECTION;
+
+ return 0;
+
+out_free:
+ gpio_free(gpio);
+out:
+ dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
+ return 0;
+}
+
+static void mfd_sd_remove_slot(struct sdhci_pci_slot *slot, int dead)
+{
+ if (slot->cd_irq >= 0)
+ free_irq(slot->cd_irq, slot);
+ gpio_free(slot->cd_gpio);
+}
+
+#else
+
+#define mfd_sd_probe_slot NULL
+#define mfd_sd_remove_slot NULL
+
+#endif
+
static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
{
- slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
+ const char *name = NULL;
+ int gpio = -EINVAL;
+
+ sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, mfd_emmc_gpio_parse);
+
+ switch (slot->chip->pdev->device) {
+ case PCI_DEVICE_ID_INTEL_MFD_EMMC0:
+ gpio = mfd_emmc0_rst_gpio;
+ name = "eMMC0_reset";
+ break;
+ case PCI_DEVICE_ID_INTEL_MFD_EMMC1:
+ gpio = mfd_emmc1_rst_gpio;
+ name = "eMMC1_reset";
+ break;
+ }
+
+ if (!gpio_request(gpio, name)) {
+ gpio_direction_output(gpio, 1);
+ slot->rst_n_gpio = gpio;
+ slot->host->mmc->caps |= MMC_CAP_HW_RESET;
+ }
+
+ slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
+
+ slot->host->mmc->caps2 = MMC_CAP2_BOOTPART_NOACC;
+
return 0;
}
+static void mfd_emmc_remove_slot(struct sdhci_pci_slot *slot, int dead)
+{
+ gpio_free(slot->rst_n_gpio);
+}
+
static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
.quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
.probe_slot = mrst_hc_probe_slot,
@@ -181,15 +307,21 @@ static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .allow_runtime_pm = true,
+ .probe_slot = mfd_sd_probe_slot,
+ .remove_slot = mfd_sd_remove_slot,
};
static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .allow_runtime_pm = true,
};
static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {
.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .allow_runtime_pm = true,
.probe_slot = mfd_emmc_probe_slot,
+ .remove_slot = mfd_emmc_remove_slot,
};
/* O2Micro extra registers */
@@ -832,9 +964,25 @@ static int sdhci_pci_8bit_width(struct sdhci_host *host, int width)
return 0;
}
+static void sdhci_pci_hw_reset(struct sdhci_host *host)
+{
+ struct sdhci_pci_slot *slot = sdhci_priv(host);
+ int rst_n_gpio = slot->rst_n_gpio;
+
+ if (!gpio_is_valid(rst_n_gpio))
+ return;
+ gpio_set_value_cansleep(rst_n_gpio, 0);
+ /* For eMMC, minimum is 1us but give it 10us for good measure */
+ udelay(10);
+ gpio_set_value_cansleep(rst_n_gpio, 1);
+ /* For eMMC, minimum is 200us but give it 300us for good measure */
+ usleep_range(300, 1000);
+}
+
static struct sdhci_ops sdhci_pci_ops = {
.enable_dma = sdhci_pci_enable_dma,
.platform_8bit_width = sdhci_pci_8bit_width,
+ .hw_reset = sdhci_pci_hw_reset,
};
/*****************************************************************************\
@@ -944,6 +1092,95 @@ static int sdhci_pci_resume(struct pci_dev *pdev)
#endif /* CONFIG_PM */
+#ifdef CONFIG_PM_RUNTIME
+
+static int sdhci_pci_runtime_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+ struct sdhci_pci_chip *chip;
+ struct sdhci_pci_slot *slot;
+ pm_message_t state = { .event = PM_EVENT_SUSPEND };
+ int i, ret;
+
+ chip = pci_get_drvdata(pdev);
+ if (!chip)
+ return 0;
+
+ for (i = 0; i < chip->num_slots; i++) {
+ slot = chip->slots[i];
+ if (!slot)
+ continue;
+
+ ret = sdhci_runtime_suspend_host(slot->host);
+
+ if (ret) {
+ for (i--; i >= 0; i--)
+ sdhci_runtime_resume_host(chip->slots[i]->host);
+ return ret;
+ }
+ }
+
+ if (chip->fixes && chip->fixes->suspend) {
+ ret = chip->fixes->suspend(chip, state);
+ if (ret) {
+ for (i = chip->num_slots - 1; i >= 0; i--)
+ sdhci_runtime_resume_host(chip->slots[i]->host);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int sdhci_pci_runtime_resume(struct device *dev)
+{
+ struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+ struct sdhci_pci_chip *chip;
+ struct sdhci_pci_slot *slot;
+ int i, ret;
+
+ chip = pci_get_drvdata(pdev);
+ if (!chip)
+ return 0;
+
+ if (chip->fixes && chip->fixes->resume) {
+ ret = chip->fixes->resume(chip);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < chip->num_slots; i++) {
+ slot = chip->slots[i];
+ if (!slot)
+ continue;
+
+ ret = sdhci_runtime_resume_host(slot->host);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int sdhci_pci_runtime_idle(struct device *dev)
+{
+ return 0;
+}
+
+#else
+
+#define sdhci_pci_runtime_suspend NULL
+#define sdhci_pci_runtime_resume NULL
+#define sdhci_pci_runtime_idle NULL
+
+#endif
+
+static const struct dev_pm_ops sdhci_pci_pm_ops = {
+ .runtime_suspend = sdhci_pci_runtime_suspend,
+ .runtime_resume = sdhci_pci_runtime_resume,
+ .runtime_idle = sdhci_pci_runtime_idle,
+};
+
/*****************************************************************************\
* *
* Device probing/removal *
@@ -988,6 +1225,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(
slot->chip = chip;
slot->host = host;
slot->pci_bar = bar;
+ slot->rst_n_gpio = -EINVAL;
host->hw_name = "PCI";
host->ops = &sdhci_pci_ops;
@@ -1058,6 +1296,21 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
sdhci_free_host(slot->host);
}
+static void __devinit sdhci_pci_runtime_pm_allow(struct device *dev)
+{
+ pm_runtime_put_noidle(dev);
+ pm_runtime_allow(dev);
+ pm_runtime_set_autosuspend_delay(dev, 50);
+ pm_runtime_use_autosuspend(dev);
+ pm_suspend_ignore_children(dev, 1);
+}
+
+static void __devexit sdhci_pci_runtime_pm_forbid(struct device *dev)
+{
+ pm_runtime_forbid(dev);
+ pm_runtime_get_noresume(dev);
+}
+
static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
@@ -1107,8 +1360,10 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
chip->pdev = pdev;
chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;
- if (chip->fixes)
+ if (chip->fixes) {
chip->quirks = chip->fixes->quirks;
+ chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;
+ }
chip->num_slots = slots;
pci_set_drvdata(pdev, chip);
@@ -1133,6 +1388,9 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev,
chip->slots[i] = slot;
}
+ if (chip->allow_runtime_pm)
+ sdhci_pci_runtime_pm_allow(&pdev->dev);
+
return 0;
free:
@@ -1152,6 +1410,9 @@ static void __devexit sdhci_pci_remove(struct pci_dev *pdev)
chip = pci_get_drvdata(pdev);
if (chip) {
+ if (chip->allow_runtime_pm)
+ sdhci_pci_runtime_pm_forbid(&pdev->dev);
+
for (i = 0; i < chip->num_slots; i++)
sdhci_pci_remove_slot(chip->slots[i]);
@@ -1169,6 +1430,9 @@ static struct pci_driver sdhci_driver = {
.remove = __devexit_p(sdhci_pci_remove),
.suspend = sdhci_pci_suspend,
.resume = sdhci_pci_resume,
+ .driver = {
+ .pm = &sdhci_pci_pm_ops
+ },
};
/*****************************************************************************\
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 6414efeddca0..a9e12ea05583 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -29,6 +29,7 @@
*/
#include <linux/err.h>
+#include <linux/module.h>
#include <linux/of.h>
#ifdef CONFIG_PPC
#include <asm/machdep.h>
diff --git a/drivers/mmc/host/sdhci-pxav2.c b/drivers/mmc/host/sdhci-pxav2.c
index 38f58994f79a..d4bf6d30c7ba 100644
--- a/drivers/mmc/host/sdhci-pxav2.c
+++ b/drivers/mmc/host/sdhci-pxav2.c
@@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/module.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/mmc/card.h>
@@ -59,7 +60,7 @@ static void pxav2_set_private_registers(struct sdhci_host *host, u8 mask)
* tune timing of read data/command when crc error happen
* no performance impact
*/
- if (pdata->clk_delay_sel == 1) {
+ if (pdata && pdata->clk_delay_sel == 1) {
tmp = readw(host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP);
tmp &= ~(SDCLK_DELAY_MASK << SDCLK_DELAY_SHIFT);
@@ -71,7 +72,7 @@ static void pxav2_set_private_registers(struct sdhci_host *host, u8 mask)
writew(tmp, host->ioaddr + SD_CLOCK_BURST_SIZE_SETUP);
}
- if (pdata->flags & PXA_FLAG_ENABLE_CLOCK_GATING) {
+ if (pdata && (pdata->flags & PXA_FLAG_ENABLE_CLOCK_GATING)) {
tmp = readw(host->ioaddr + SD_FIFO_PARAM);
tmp &= ~CLK_GATE_SETTING_BITS;
writew(tmp, host->ioaddr + SD_FIFO_PARAM);
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index fc7e4a515629..cff4ad3e7a59 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -27,6 +27,7 @@
#include <linux/platform_data/pxa_sdhci.h>
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/module.h>
#include "sdhci.h"
#include "sdhci-pltfm.h"
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index fe886d6c474a..3d00e722efc9 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -203,17 +203,23 @@ static void sdhci_s3c_set_clock(struct sdhci_host *host, unsigned int clock)
writel(ctrl, host->ioaddr + S3C_SDHCI_CONTROL2);
}
- /* reconfigure the hardware for new clock rate */
-
- {
- struct mmc_ios ios;
-
- ios.clock = clock;
-
- if (ourhost->pdata->cfg_card)
- (ourhost->pdata->cfg_card)(ourhost->pdev, host->ioaddr,
- &ios, NULL);
- }
+ /* reprogram default hardware configuration */
+ writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA,
+ host->ioaddr + S3C64XX_SDHCI_CONTROL4);
+
+ ctrl = readl(host->ioaddr + S3C_SDHCI_CONTROL2);
+ ctrl |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR |
+ S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK |
+ S3C_SDHCI_CTRL2_ENFBCLKRX |
+ S3C_SDHCI_CTRL2_DFCNT_NONE |
+ S3C_SDHCI_CTRL2_ENCLKOUTHOLD);
+ writel(ctrl, host->ioaddr + S3C_SDHCI_CONTROL2);
+
+ /* reconfigure the controller for new clock rate */
+ ctrl = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0);
+ if (clock < 25 * 1000000)
+ ctrl |= (S3C_SDHCI_CTRL3_FCSEL3 | S3C_SDHCI_CTRL3_FCSEL2);
+ writel(ctrl, host->ioaddr + S3C_SDHCI_CONTROL3);
}
/**
@@ -561,8 +567,10 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
err_req_regs:
for (ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
- clk_disable(sc->clk_bus[ptr]);
- clk_put(sc->clk_bus[ptr]);
+ if (sc->clk_bus[ptr]) {
+ clk_disable(sc->clk_bus[ptr]);
+ clk_put(sc->clk_bus[ptr]);
+ }
}
err_no_busclks:
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 60a4c97d3d18..63cc8b6a1c9e 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -17,6 +17,7 @@
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/highmem.h>
+#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
@@ -177,8 +178,6 @@ static int __devinit sdhci_probe(struct platform_device *pdev)
sdhci->data->card_power_gpio);
goto err_pgpio_direction;
}
-
- gpio_set_value(sdhci->data->card_power_gpio, 1);
}
if (sdhci->data->card_int_gpio >= 0) {
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 21b00cefae63..067a4cded9cf 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -17,9 +17,12 @@
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
#include <linux/gpio.h>
#include <linux/mmc/card.h>
#include <linux/mmc/host.h>
+#include <linux/module.h>
#include <asm/gpio.h>
@@ -75,10 +78,8 @@ static void tegra_sdhci_writel(struct sdhci_host *host, u32 val, int reg)
static unsigned int tegra_sdhci_get_ro(struct sdhci_host *sdhci)
{
- struct platform_device *pdev = to_platform_device(mmc_dev(sdhci->mmc));
- struct tegra_sdhci_platform_data *plat;
-
- plat = pdev->dev.platform_data;
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(sdhci);
+ struct tegra_sdhci_platform_data *plat = pltfm_host->priv;
if (!gpio_is_valid(plat->wp_gpio))
return -1;
@@ -96,12 +97,10 @@ static irqreturn_t carddetect_irq(int irq, void *data)
static int tegra_sdhci_8bit(struct sdhci_host *host, int bus_width)
{
- struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc));
- struct tegra_sdhci_platform_data *plat;
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct tegra_sdhci_platform_data *plat = pltfm_host->priv;
u32 ctrl;
- plat = pdev->dev.platform_data;
-
ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
if (plat->is_8bit && bus_width == MMC_BUS_WIDTH_8) {
ctrl &= ~SDHCI_CTRL_4BITBUS;
@@ -133,6 +132,36 @@ static struct sdhci_pltfm_data sdhci_tegra_pdata = {
.ops = &tegra_sdhci_ops,
};
+static const struct of_device_id sdhci_tegra_dt_match[] __devinitdata = {
+ { .compatible = "nvidia,tegra20-sdhci", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, sdhci_dt_ids);
+
+static struct tegra_sdhci_platform_data * __devinit sdhci_tegra_dt_parse_pdata(
+ struct platform_device *pdev)
+{
+ struct tegra_sdhci_platform_data *plat;
+ struct device_node *np = pdev->dev.of_node;
+
+ if (!np)
+ return NULL;
+
+ plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);
+ if (!plat) {
+ dev_err(&pdev->dev, "Can't allocate platform data\n");
+ return NULL;
+ }
+
+ plat->cd_gpio = of_get_named_gpio(np, "cd-gpios", 0);
+ plat->wp_gpio = of_get_named_gpio(np, "wp-gpios", 0);
+ plat->power_gpio = of_get_named_gpio(np, "power-gpios", 0);
+ if (of_find_property(np, "support-8bit", NULL))
+ plat->is_8bit = 1;
+
+ return plat;
+}
+
static int __devinit sdhci_tegra_probe(struct platform_device *pdev)
{
struct sdhci_pltfm_host *pltfm_host;
@@ -149,12 +178,17 @@ static int __devinit sdhci_tegra_probe(struct platform_device *pdev)
plat = pdev->dev.platform_data;
+ if (plat == NULL)
+ plat = sdhci_tegra_dt_parse_pdata(pdev);
+
if (plat == NULL) {
dev_err(mmc_dev(host->mmc), "missing platform data\n");
rc = -ENXIO;
goto err_no_plat;
}
+ pltfm_host->priv = plat;
+
if (gpio_is_valid(plat->power_gpio)) {
rc = gpio_request(plat->power_gpio, "sdhci_power");
if (rc) {
@@ -249,13 +283,11 @@ static int __devexit sdhci_tegra_remove(struct platform_device *pdev)
{
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- struct tegra_sdhci_platform_data *plat;
+ struct tegra_sdhci_platform_data *plat = pltfm_host->priv;
int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
sdhci_remove_host(host, dead);
- plat = pdev->dev.platform_data;
-
if (gpio_is_valid(plat->wp_gpio)) {
tegra_gpio_disable(plat->wp_gpio);
gpio_free(plat->wp_gpio);
@@ -284,6 +316,7 @@ static struct platform_driver sdhci_tegra_driver = {
.driver = {
.name = "sdhci-tegra",
.owner = THIS_MODULE,
+ .of_match_table = sdhci_tegra_dt_match,
},
.probe = sdhci_tegra_probe,
.remove = __devexit_p(sdhci_tegra_remove),
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0e02cc1df12e..6d8eea323541 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -16,10 +16,12 @@
#include <linux/delay.h>
#include <linux/highmem.h>
#include <linux/io.h>
+#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/scatterlist.h>
#include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
#include <linux/leds.h>
@@ -41,6 +43,7 @@
#define MAX_TUNING_LOOP 40
static unsigned int debug_quirks = 0;
+static unsigned int debug_quirks2;
static void sdhci_finish_data(struct sdhci_host *);
@@ -49,53 +52,67 @@ static void sdhci_finish_command(struct sdhci_host *);
static int sdhci_execute_tuning(struct mmc_host *mmc);
static void sdhci_tuning_timer(unsigned long data);
+#ifdef CONFIG_PM_RUNTIME
+static int sdhci_runtime_pm_get(struct sdhci_host *host);
+static int sdhci_runtime_pm_put(struct sdhci_host *host);
+#else
+static inline int sdhci_runtime_pm_get(struct sdhci_host *host)
+{
+ return 0;
+}
+static inline int sdhci_runtime_pm_put(struct sdhci_host *host)
+{
+ return 0;
+}
+#endif
+
static void sdhci_dumpregs(struct sdhci_host *host)
{
- printk(KERN_DEBUG DRIVER_NAME ": =========== REGISTER DUMP (%s)===========\n",
+ pr_debug(DRIVER_NAME ": =========== REGISTER DUMP (%s)===========\n",
mmc_hostname(host->mmc));
- printk(KERN_DEBUG DRIVER_NAME ": Sys addr: 0x%08x | Version: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Sys addr: 0x%08x | Version: 0x%08x\n",
sdhci_readl(host, SDHCI_DMA_ADDRESS),
sdhci_readw(host, SDHCI_HOST_VERSION));
- printk(KERN_DEBUG DRIVER_NAME ": Blk size: 0x%08x | Blk cnt: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Blk size: 0x%08x | Blk cnt: 0x%08x\n",
sdhci_readw(host, SDHCI_BLOCK_SIZE),
sdhci_readw(host, SDHCI_BLOCK_COUNT));
- printk(KERN_DEBUG DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n",
sdhci_readl(host, SDHCI_ARGUMENT),
sdhci_readw(host, SDHCI_TRANSFER_MODE));
- printk(KERN_DEBUG DRIVER_NAME ": Present: 0x%08x | Host ctl: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Present: 0x%08x | Host ctl: 0x%08x\n",
sdhci_readl(host, SDHCI_PRESENT_STATE),
sdhci_readb(host, SDHCI_HOST_CONTROL));
- printk(KERN_DEBUG DRIVER_NAME ": Power: 0x%08x | Blk gap: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Power: 0x%08x | Blk gap: 0x%08x\n",
sdhci_readb(host, SDHCI_POWER_CONTROL),
sdhci_readb(host, SDHCI_BLOCK_GAP_CONTROL));
- printk(KERN_DEBUG DRIVER_NAME ": Wake-up: 0x%08x | Clock: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Wake-up: 0x%08x | Clock: 0x%08x\n",
sdhci_readb(host, SDHCI_WAKE_UP_CONTROL),
sdhci_readw(host, SDHCI_CLOCK_CONTROL));
- printk(KERN_DEBUG DRIVER_NAME ": Timeout: 0x%08x | Int stat: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Timeout: 0x%08x | Int stat: 0x%08x\n",
sdhci_readb(host, SDHCI_TIMEOUT_CONTROL),
sdhci_readl(host, SDHCI_INT_STATUS));
- printk(KERN_DEBUG DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n",
sdhci_readl(host, SDHCI_INT_ENABLE),
sdhci_readl(host, SDHCI_SIGNAL_ENABLE));
- printk(KERN_DEBUG DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n",
sdhci_readw(host, SDHCI_ACMD12_ERR),
sdhci_readw(host, SDHCI_SLOT_INT_STATUS));
- printk(KERN_DEBUG DRIVER_NAME ": Caps: 0x%08x | Caps_1: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Caps: 0x%08x | Caps_1: 0x%08x\n",
sdhci_readl(host, SDHCI_CAPABILITIES),
sdhci_readl(host, SDHCI_CAPABILITIES_1));
- printk(KERN_DEBUG DRIVER_NAME ": Cmd: 0x%08x | Max curr: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Cmd: 0x%08x | Max curr: 0x%08x\n",
sdhci_readw(host, SDHCI_COMMAND),
sdhci_readl(host, SDHCI_MAX_CURRENT));
- printk(KERN_DEBUG DRIVER_NAME ": Host ctl2: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": Host ctl2: 0x%08x\n",
sdhci_readw(host, SDHCI_HOST_CONTROL2));
if (host->flags & SDHCI_USE_ADMA)
- printk(KERN_DEBUG DRIVER_NAME ": ADMA Err: 0x%08x | ADMA Ptr: 0x%08x\n",
+ pr_debug(DRIVER_NAME ": ADMA Err: 0x%08x | ADMA Ptr: 0x%08x\n",
readl(host->ioaddr + SDHCI_ADMA_ERROR),
readl(host->ioaddr + SDHCI_ADMA_ADDRESS));
- printk(KERN_DEBUG DRIVER_NAME ": ===========================================\n");
+ pr_debug(DRIVER_NAME ": ===========================================\n");
}
/*****************************************************************************\
@@ -132,6 +149,9 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable)
if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
return;
+ if (host->quirks2 & SDHCI_QUIRK2_OWN_CARD_DETECTION)
+ return;
+
present = sdhci_readl(host, SDHCI_PRESENT_STATE) &
SDHCI_CARD_PRESENT;
irqs = present ? SDHCI_INT_CARD_REMOVE : SDHCI_INT_CARD_INSERT;
@@ -180,7 +200,7 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask)
/* hw clears the bit when it's done */
while (sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask) {
if (timeout == 0) {
- printk(KERN_ERR "%s: Reset 0x%x never completed.\n",
+ pr_err("%s: Reset 0x%x never completed.\n",
mmc_hostname(host->mmc), (int)mask);
sdhci_dumpregs(host);
return;
@@ -251,11 +271,14 @@ static void sdhci_led_control(struct led_classdev *led,
spin_lock_irqsave(&host->lock, flags);
+ if (host->runtime_suspended)
+ goto out;
+
if (brightness == LED_OFF)
sdhci_deactivate_led(host);
else
sdhci_activate_led(host);
-
+out:
spin_unlock_irqrestore(&host->lock, flags);
}
#endif
@@ -654,7 +677,7 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd)
}
if (count >= 0xF) {
- printk(KERN_WARNING "%s: Too large timeout requested for CMD%d!\n",
+ pr_warning("%s: Too large timeout requested for CMD%d!\n",
mmc_hostname(host->mmc), cmd->opcode);
count = 0xE;
}
@@ -949,7 +972,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) {
if (timeout == 0) {
- printk(KERN_ERR "%s: Controller never released "
+ pr_err("%s: Controller never released "
"inhibit bit(s).\n", mmc_hostname(host->mmc));
sdhci_dumpregs(host);
cmd->error = -EIO;
@@ -971,7 +994,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
sdhci_set_transfer_mode(host, cmd);
if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
- printk(KERN_ERR "%s: Unsupported response type!\n",
+ pr_err("%s: Unsupported response type!\n",
mmc_hostname(host->mmc));
cmd->error = -EINVAL;
tasklet_schedule(&host->finish_tasklet);
@@ -1121,7 +1144,7 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL))
& SDHCI_CLOCK_INT_STABLE)) {
if (timeout == 0) {
- printk(KERN_ERR "%s: Internal clock never "
+ pr_err("%s: Internal clock never "
"stabilised.\n", mmc_hostname(host->mmc));
sdhci_dumpregs(host);
return;
@@ -1209,6 +1232,8 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
host = mmc_priv(mmc);
+ sdhci_runtime_pm_get(host);
+
spin_lock_irqsave(&host->lock, flags);
WARN_ON(host->mrq != NULL);
@@ -1269,14 +1294,11 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
spin_unlock_irqrestore(&host->lock, flags);
}
-static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
{
- struct sdhci_host *host;
unsigned long flags;
u8 ctrl;
- host = mmc_priv(mmc);
-
spin_lock_irqsave(&host->lock, flags);
if (host->flags & SDHCI_DEVICE_DEAD)
@@ -1426,7 +1448,16 @@ out:
spin_unlock_irqrestore(&host->lock, flags);
}
-static int check_ro(struct sdhci_host *host)
+static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+
+ sdhci_runtime_pm_get(host);
+ sdhci_do_set_ios(host, ios);
+ sdhci_runtime_pm_put(host);
+}
+
+static int sdhci_check_ro(struct sdhci_host *host)
{
unsigned long flags;
int is_readonly;
@@ -1450,19 +1481,16 @@ static int check_ro(struct sdhci_host *host)
#define SAMPLE_COUNT 5
-static int sdhci_get_ro(struct mmc_host *mmc)
+static int sdhci_do_get_ro(struct sdhci_host *host)
{
- struct sdhci_host *host;
int i, ro_count;
- host = mmc_priv(mmc);
-
if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT))
- return check_ro(host);
+ return sdhci_check_ro(host);
ro_count = 0;
for (i = 0; i < SAMPLE_COUNT; i++) {
- if (check_ro(host)) {
+ if (sdhci_check_ro(host)) {
if (++ro_count > SAMPLE_COUNT / 2)
return 1;
}
@@ -1471,38 +1499,64 @@ static int sdhci_get_ro(struct mmc_host *mmc)
return 0;
}
-static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
+static void sdhci_hw_reset(struct mmc_host *mmc)
{
- struct sdhci_host *host;
- unsigned long flags;
+ struct sdhci_host *host = mmc_priv(mmc);
- host = mmc_priv(mmc);
+ if (host->ops && host->ops->hw_reset)
+ host->ops->hw_reset(host);
+}
- spin_lock_irqsave(&host->lock, flags);
+static int sdhci_get_ro(struct mmc_host *mmc)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+ int ret;
+ sdhci_runtime_pm_get(host);
+ ret = sdhci_do_get_ro(host);
+ sdhci_runtime_pm_put(host);
+ return ret;
+}
+
+static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable)
+{
if (host->flags & SDHCI_DEVICE_DEAD)
goto out;
if (enable)
+ host->flags |= SDHCI_SDIO_IRQ_ENABLED;
+ else
+ host->flags &= ~SDHCI_SDIO_IRQ_ENABLED;
+
+ /* SDIO IRQ will be enabled as appropriate in runtime resume */
+ if (host->runtime_suspended)
+ goto out;
+
+ if (enable)
sdhci_unmask_irqs(host, SDHCI_INT_CARD_INT);
else
sdhci_mask_irqs(host, SDHCI_INT_CARD_INT);
out:
mmiowb();
+}
+
+static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+ unsigned long flags;
+ spin_lock_irqsave(&host->lock, flags);
+ sdhci_enable_sdio_irq_nolock(host, enable);
spin_unlock_irqrestore(&host->lock, flags);
}
-static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
- struct mmc_ios *ios)
+static int sdhci_do_start_signal_voltage_switch(struct sdhci_host *host,
+ struct mmc_ios *ios)
{
- struct sdhci_host *host;
u8 pwr;
u16 clk, ctrl;
u32 present_state;
- host = mmc_priv(mmc);
-
/*
* Signal Voltage Switching is only applicable for Host Controllers
* v3.00 and above.
@@ -1528,7 +1582,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
if (!(ctrl & SDHCI_CTRL_VDD_180))
return 0;
else {
- printk(KERN_INFO DRIVER_NAME ": Switching to 3.3V "
+ pr_info(DRIVER_NAME ": Switching to 3.3V "
"signalling voltage failed\n");
return -EIO;
}
@@ -1587,7 +1641,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
pwr |= SDHCI_POWER_ON;
sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);
- printk(KERN_INFO DRIVER_NAME ": Switching to 1.8V signalling "
+ pr_info(DRIVER_NAME ": Switching to 1.8V signalling "
"voltage failed, retrying with S18R set to 0\n");
return -EAGAIN;
} else
@@ -1595,6 +1649,20 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
return 0;
}
+static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
+ struct mmc_ios *ios)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+ int err;
+
+ if (host->version < SDHCI_SPEC_300)
+ return 0;
+ sdhci_runtime_pm_get(host);
+ err = sdhci_do_start_signal_voltage_switch(host, ios);
+ sdhci_runtime_pm_put(host);
+ return err;
+}
+
static int sdhci_execute_tuning(struct mmc_host *mmc)
{
struct sdhci_host *host;
@@ -1606,6 +1674,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
host = mmc_priv(mmc);
+ sdhci_runtime_pm_get(host);
disable_irq(host->irq);
spin_lock(&host->lock);
@@ -1623,6 +1692,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
else {
spin_unlock(&host->lock);
enable_irq(host->irq);
+ sdhci_runtime_pm_put(host);
return 0;
}
@@ -1648,7 +1718,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
timeout = 150;
do {
struct mmc_command cmd = {0};
- struct mmc_request mrq = {0};
+ struct mmc_request mrq = {NULL};
if (!tuning_loop_counter && !timeout)
break;
@@ -1694,7 +1764,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
spin_lock(&host->lock);
if (!host->tuning_done) {
- printk(KERN_INFO DRIVER_NAME ": Timeout waiting for "
+ pr_info(DRIVER_NAME ": Timeout waiting for "
"Buffer Read Ready interrupt during tuning "
"procedure, falling back to fixed sampling "
"clock\n");
@@ -1724,7 +1794,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc)
sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
} else {
if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) {
- printk(KERN_INFO DRIVER_NAME ": Tuning procedure"
+ pr_info(DRIVER_NAME ": Tuning procedure"
" failed, falling back to fixed sampling"
" clock\n");
err = -EIO;
@@ -1766,18 +1836,16 @@ out:
sdhci_clear_set_irqs(host, SDHCI_INT_DATA_AVAIL, ier);
spin_unlock(&host->lock);
enable_irq(host->irq);
+ sdhci_runtime_pm_put(host);
return err;
}
-static void sdhci_enable_preset_value(struct mmc_host *mmc, bool enable)
+static void sdhci_do_enable_preset_value(struct sdhci_host *host, bool enable)
{
- struct sdhci_host *host;
u16 ctrl;
unsigned long flags;
- host = mmc_priv(mmc);
-
/* Host Controller v3.00 defines preset value registers */
if (host->version < SDHCI_SPEC_300)
return;
@@ -1793,18 +1861,30 @@ static void sdhci_enable_preset_value(struct mmc_host *mmc, bool enable)
if (enable && !(ctrl & SDHCI_CTRL_PRESET_VAL_ENABLE)) {
ctrl |= SDHCI_CTRL_PRESET_VAL_ENABLE;
sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
+ host->flags |= SDHCI_PV_ENABLED;
} else if (!enable && (ctrl & SDHCI_CTRL_PRESET_VAL_ENABLE)) {
ctrl &= ~SDHCI_CTRL_PRESET_VAL_ENABLE;
sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
+ host->flags &= ~SDHCI_PV_ENABLED;
}
spin_unlock_irqrestore(&host->lock, flags);
}
+static void sdhci_enable_preset_value(struct mmc_host *mmc, bool enable)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+
+ sdhci_runtime_pm_get(host);
+ sdhci_do_enable_preset_value(host, enable);
+ sdhci_runtime_pm_put(host);
+}
+
static const struct mmc_host_ops sdhci_ops = {
.request = sdhci_request,
.set_ios = sdhci_set_ios,
.get_ro = sdhci_get_ro,
+ .hw_reset = sdhci_hw_reset,
.enable_sdio_irq = sdhci_enable_sdio_irq,
.start_signal_voltage_switch = sdhci_start_signal_voltage_switch,
.execute_tuning = sdhci_execute_tuning,
@@ -1826,19 +1906,19 @@ static void sdhci_tasklet_card(unsigned long param)
spin_lock_irqsave(&host->lock, flags);
- if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
- if (host->mrq) {
- printk(KERN_ERR "%s: Card removed during transfer!\n",
- mmc_hostname(host->mmc));
- printk(KERN_ERR "%s: Resetting controller.\n",
- mmc_hostname(host->mmc));
+ /* Check host->mrq first in case we are runtime suspended */
+ if (host->mrq &&
+ !(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
+ pr_err("%s: Card removed during transfer!\n",
+ mmc_hostname(host->mmc));
+ pr_err("%s: Resetting controller.\n",
+ mmc_hostname(host->mmc));
- sdhci_reset(host, SDHCI_RESET_CMD);
- sdhci_reset(host, SDHCI_RESET_DATA);
+ sdhci_reset(host, SDHCI_RESET_CMD);
+ sdhci_reset(host, SDHCI_RESET_DATA);
- host->mrq->cmd->error = -ENOMEDIUM;
- tasklet_schedule(&host->finish_tasklet);
- }
+ host->mrq->cmd->error = -ENOMEDIUM;
+ tasklet_schedule(&host->finish_tasklet);
}
spin_unlock_irqrestore(&host->lock, flags);
@@ -1854,14 +1934,16 @@ static void sdhci_tasklet_finish(unsigned long param)
host = (struct sdhci_host*)param;
+ spin_lock_irqsave(&host->lock, flags);
+
/*
* If this tasklet gets rescheduled while running, it will
* be run again afterwards but without any active request.
*/
- if (!host->mrq)
+ if (!host->mrq) {
+ spin_unlock_irqrestore(&host->lock, flags);
return;
-
- spin_lock_irqsave(&host->lock, flags);
+ }
del_timer(&host->timer);
@@ -1905,6 +1987,7 @@ static void sdhci_tasklet_finish(unsigned long param)
spin_unlock_irqrestore(&host->lock, flags);
mmc_request_done(host->mmc, mrq);
+ sdhci_runtime_pm_put(host);
}
static void sdhci_timeout_timer(unsigned long data)
@@ -1917,7 +2000,7 @@ static void sdhci_timeout_timer(unsigned long data)
spin_lock_irqsave(&host->lock, flags);
if (host->mrq) {
- printk(KERN_ERR "%s: Timeout waiting for hardware "
+ pr_err("%s: Timeout waiting for hardware "
"interrupt.\n", mmc_hostname(host->mmc));
sdhci_dumpregs(host);
@@ -1963,7 +2046,7 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
BUG_ON(intmask == 0);
if (!host->cmd) {
- printk(KERN_ERR "%s: Got command interrupt 0x%08x even "
+ pr_err("%s: Got command interrupt 0x%08x even "
"though no command operation was in progress.\n",
mmc_hostname(host->mmc), (unsigned)intmask);
sdhci_dumpregs(host);
@@ -2063,7 +2146,7 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
}
}
- printk(KERN_ERR "%s: Got data interrupt 0x%08x even "
+ pr_err("%s: Got data interrupt 0x%08x even "
"though no data operation was in progress.\n",
mmc_hostname(host->mmc), (unsigned)intmask);
sdhci_dumpregs(host);
@@ -2080,7 +2163,7 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
!= MMC_BUS_TEST_R)
host->data->error = -EILSEQ;
else if (intmask & SDHCI_INT_ADMA_ERROR) {
- printk(KERN_ERR "%s: ADMA error\n", mmc_hostname(host->mmc));
+ pr_err("%s: ADMA error\n", mmc_hostname(host->mmc));
sdhci_show_adma_error(host);
host->data->error = -EIO;
}
@@ -2136,12 +2219,19 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
static irqreturn_t sdhci_irq(int irq, void *dev_id)
{
irqreturn_t result;
- struct sdhci_host* host = dev_id;
+ struct sdhci_host *host = dev_id;
u32 intmask;
int cardint = 0;
spin_lock(&host->lock);
+ if (host->runtime_suspended) {
+ spin_unlock(&host->lock);
+ pr_warning("%s: got irq while runtime suspended\n",
+ mmc_hostname(host->mmc));
+ return IRQ_HANDLED;
+ }
+
intmask = sdhci_readl(host, SDHCI_INT_STATUS);
if (!intmask || intmask == 0xffffffff) {
@@ -2194,7 +2284,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
intmask &= ~SDHCI_INT_ERROR;
if (intmask & SDHCI_INT_BUS_POWER) {
- printk(KERN_ERR "%s: Card is consuming too much power!\n",
+ pr_err("%s: Card is consuming too much power!\n",
mmc_hostname(host->mmc));
sdhci_writel(host, SDHCI_INT_BUS_POWER, SDHCI_INT_STATUS);
}
@@ -2207,7 +2297,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
intmask &= ~SDHCI_INT_CARD_INT;
if (intmask) {
- printk(KERN_ERR "%s: Unexpected interrupt 0x%08x.\n",
+ pr_err("%s: Unexpected interrupt 0x%08x.\n",
mmc_hostname(host->mmc), intmask);
sdhci_dumpregs(host);
@@ -2275,7 +2365,6 @@ int sdhci_resume_host(struct sdhci_host *host)
return ret;
}
-
if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
if (host->ops->enable_dma)
host->ops->enable_dma(host);
@@ -2314,6 +2403,90 @@ EXPORT_SYMBOL_GPL(sdhci_enable_irq_wakeups);
#endif /* CONFIG_PM */
+#ifdef CONFIG_PM_RUNTIME
+
+static int sdhci_runtime_pm_get(struct sdhci_host *host)
+{
+ return pm_runtime_get_sync(host->mmc->parent);
+}
+
+static int sdhci_runtime_pm_put(struct sdhci_host *host)
+{
+ pm_runtime_mark_last_busy(host->mmc->parent);
+ return pm_runtime_put_autosuspend(host->mmc->parent);
+}
+
+int sdhci_runtime_suspend_host(struct sdhci_host *host)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ /* Disable tuning since we are suspending */
+ if (host->version >= SDHCI_SPEC_300 &&
+ host->tuning_mode == SDHCI_TUNING_MODE_1) {
+ del_timer_sync(&host->tuning_timer);
+ host->flags &= ~SDHCI_NEEDS_RETUNING;
+ }
+
+ spin_lock_irqsave(&host->lock, flags);
+ sdhci_mask_irqs(host, SDHCI_INT_ALL_MASK);
+ spin_unlock_irqrestore(&host->lock, flags);
+
+ synchronize_irq(host->irq);
+
+ spin_lock_irqsave(&host->lock, flags);
+ host->runtime_suspended = true;
+ spin_unlock_irqrestore(&host->lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sdhci_runtime_suspend_host);
+
+int sdhci_runtime_resume_host(struct sdhci_host *host)
+{
+ unsigned long flags;
+ int ret = 0, host_flags = host->flags;
+
+ if (host_flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
+ if (host->ops->enable_dma)
+ host->ops->enable_dma(host);
+ }
+
+ sdhci_init(host, 0);
+
+ /* Force clock and power re-program */
+ host->pwr = 0;
+ host->clock = 0;
+ sdhci_do_set_ios(host, &host->mmc->ios);
+
+ sdhci_do_start_signal_voltage_switch(host, &host->mmc->ios);
+ if (host_flags & SDHCI_PV_ENABLED)
+ sdhci_do_enable_preset_value(host, true);
+
+ /* Set the re-tuning expiration flag */
+ if ((host->version >= SDHCI_SPEC_300) && host->tuning_count &&
+ (host->tuning_mode == SDHCI_TUNING_MODE_1))
+ host->flags |= SDHCI_NEEDS_RETUNING;
+
+ spin_lock_irqsave(&host->lock, flags);
+
+ host->runtime_suspended = false;
+
+ /* Enable SDIO IRQ */
+ if ((host->flags & SDHCI_SDIO_IRQ_ENABLED))
+ sdhci_enable_sdio_irq_nolock(host, true);
+
+ /* Enable Card Detection */
+ sdhci_enable_card_detection(host);
+
+ spin_unlock_irqrestore(&host->lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(sdhci_runtime_resume_host);
+
+#endif
+
/*****************************************************************************\
* *
* Device allocation/registration *
@@ -2356,6 +2529,8 @@ int sdhci_add_host(struct sdhci_host *host)
if (debug_quirks)
host->quirks = debug_quirks;
+ if (debug_quirks2)
+ host->quirks2 = debug_quirks2;
sdhci_reset(host, SDHCI_RESET_ALL);
@@ -2363,7 +2538,7 @@ int sdhci_add_host(struct sdhci_host *host)
host->version = (host->version & SDHCI_SPEC_VER_MASK)
>> SDHCI_SPEC_VER_SHIFT;
if (host->version > SDHCI_SPEC_300) {
- printk(KERN_ERR "%s: Unknown controller version (%d). "
+ pr_err("%s: Unknown controller version (%d). "
"You may experience problems.\n", mmc_hostname(mmc),
host->version);
}
@@ -2400,7 +2575,7 @@ int sdhci_add_host(struct sdhci_host *host)
if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
if (host->ops->enable_dma) {
if (host->ops->enable_dma(host)) {
- printk(KERN_WARNING "%s: No suitable DMA "
+ pr_warning("%s: No suitable DMA "
"available. Falling back to PIO.\n",
mmc_hostname(mmc));
host->flags &=
@@ -2420,7 +2595,7 @@ int sdhci_add_host(struct sdhci_host *host)
if (!host->adma_desc || !host->align_buffer) {
kfree(host->adma_desc);
kfree(host->align_buffer);
- printk(KERN_WARNING "%s: Unable to allocate ADMA "
+ pr_warning("%s: Unable to allocate ADMA "
"buffers. Falling back to standard DMA.\n",
mmc_hostname(mmc));
host->flags &= ~SDHCI_USE_ADMA;
@@ -2448,8 +2623,7 @@ int sdhci_add_host(struct sdhci_host *host)
if (host->max_clk == 0 || host->quirks &
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN) {
if (!host->ops->get_max_clock) {
- printk(KERN_ERR
- "%s: Hardware doesn't specify base clock "
+ pr_err("%s: Hardware doesn't specify base clock "
"frequency.\n", mmc_hostname(mmc));
return -ENODEV;
}
@@ -2495,8 +2669,7 @@ int sdhci_add_host(struct sdhci_host *host)
host->timeout_clk = host->ops->get_timeout_clock(host);
} else if (!(host->quirks &
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) {
- printk(KERN_ERR
- "%s: Hardware doesn't specify timeout clock "
+ pr_err("%s: Hardware doesn't specify timeout clock "
"frequency.\n", mmc_hostname(mmc));
return -ENODEV;
}
@@ -2566,6 +2739,15 @@ int sdhci_add_host(struct sdhci_host *host)
if (caps[1] & SDHCI_DRIVER_TYPE_D)
mmc->caps |= MMC_CAP_DRIVER_TYPE_D;
+ /*
+ * If Power Off Notify capability is enabled by the host,
+ * set notify to short power off notify timeout value.
+ */
+ if (mmc->caps2 & MMC_CAP2_POWEROFF_NOTIFY)
+ mmc->power_notify_type = MMC_HOST_PW_NOTIFY_SHORT;
+ else
+ mmc->power_notify_type = MMC_HOST_PW_NOTIFY_NONE;
+
/* Initial value for re-tuning timer count */
host->tuning_count = (caps[1] & SDHCI_RETUNING_TIMER_COUNT_MASK) >>
SDHCI_RETUNING_TIMER_COUNT_SHIFT;
@@ -2655,7 +2837,7 @@ int sdhci_add_host(struct sdhci_host *host)
mmc->ocr_avail_mmc &= host->ocr_avail_mmc;
if (mmc->ocr_avail == 0) {
- printk(KERN_ERR "%s: Hardware doesn't report any "
+ pr_err("%s: Hardware doesn't report any "
"support voltages.\n", mmc_hostname(mmc));
return -ENODEV;
}
@@ -2703,7 +2885,7 @@ int sdhci_add_host(struct sdhci_host *host)
mmc->max_blk_size = (caps[0] & SDHCI_MAX_BLOCK_MASK) >>
SDHCI_MAX_BLOCK_SHIFT;
if (mmc->max_blk_size >= 3) {
- printk(KERN_WARNING "%s: Invalid maximum block size, "
+ pr_warning("%s: Invalid maximum block size, "
"assuming 512 bytes\n", mmc_hostname(mmc));
mmc->max_blk_size = 0;
}
@@ -2742,7 +2924,7 @@ int sdhci_add_host(struct sdhci_host *host)
host->vmmc = regulator_get(mmc_dev(mmc), "vmmc");
if (IS_ERR(host->vmmc)) {
- printk(KERN_INFO "%s: no vmmc regulator found\n", mmc_hostname(mmc));
+ pr_info("%s: no vmmc regulator found\n", mmc_hostname(mmc));
host->vmmc = NULL;
} else {
regulator_enable(host->vmmc);
@@ -2771,7 +2953,7 @@ int sdhci_add_host(struct sdhci_host *host)
mmc_add_host(mmc);
- printk(KERN_INFO "%s: SDHCI controller on %s [%s] using %s\n",
+ pr_info("%s: SDHCI controller on %s [%s] using %s\n",
mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)),
(host->flags & SDHCI_USE_ADMA) ? "ADMA" :
(host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO");
@@ -2804,7 +2986,7 @@ void sdhci_remove_host(struct sdhci_host *host, int dead)
host->flags |= SDHCI_DEVICE_DEAD;
if (host->mrq) {
- printk(KERN_ERR "%s: Controller removed during "
+ pr_err("%s: Controller removed during "
" transfer!\n", mmc_hostname(host->mmc));
host->mrq->cmd->error = -ENOMEDIUM;
@@ -2863,9 +3045,9 @@ EXPORT_SYMBOL_GPL(sdhci_free_host);
static int __init sdhci_drv_init(void)
{
- printk(KERN_INFO DRIVER_NAME
+ pr_info(DRIVER_NAME
": Secure Digital Host Controller Interface driver\n");
- printk(KERN_INFO DRIVER_NAME ": Copyright(c) Pierre Ossman\n");
+ pr_info(DRIVER_NAME ": Copyright(c) Pierre Ossman\n");
return 0;
}
@@ -2878,9 +3060,11 @@ module_init(sdhci_drv_init);
module_exit(sdhci_drv_exit);
module_param(debug_quirks, uint, 0444);
+module_param(debug_quirks2, uint, 0444);
MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");
MODULE_LICENSE("GPL");
MODULE_PARM_DESC(debug_quirks, "Force certain quirks.");
+MODULE_PARM_DESC(debug_quirks2, "Force certain other quirks.");
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 745c42fa41ed..0a5b65460d8a 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -273,7 +273,7 @@ struct sdhci_ops {
void (*platform_reset_enter)(struct sdhci_host *host, u8 mask);
void (*platform_reset_exit)(struct sdhci_host *host, u8 mask);
int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);
-
+ void (*hw_reset)(struct sdhci_host *host);
};
#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
@@ -379,4 +379,9 @@ extern int sdhci_resume_host(struct sdhci_host *host);
extern void sdhci_enable_irq_wakeups(struct sdhci_host *host);
#endif
+#ifdef CONFIG_PM_RUNTIME
+extern int sdhci_runtime_suspend_host(struct sdhci_host *host);
+extern int sdhci_runtime_resume_host(struct sdhci_host *host);
+#endif
+
#endif /* __SDHCI_HW_H */
diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c
index 496b7efbc6b0..7009f17ad6cd 100644
--- a/drivers/mmc/host/sdricoh_cs.c
+++ b/drivers/mmc/host/sdricoh_cs.c
@@ -26,6 +26,7 @@
*/
#include <linux/delay.h>
#include <linux/highmem.h>
+#include <linux/module.h>
#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/scatterlist.h>
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 557886bee9ce..369366c8e205 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -31,6 +31,7 @@
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/spinlock.h>
+#include <linux/module.h>
#define DRIVER_NAME "sh_mmcif"
#define DRIVER_VERSION "2010-04-28"
@@ -165,6 +166,8 @@ struct sh_mmcif_host {
struct mmc_host *mmc;
struct mmc_data *data;
struct platform_device *pd;
+ struct sh_dmae_slave dma_slave_tx;
+ struct sh_dmae_slave dma_slave_rx;
struct clk *hclk;
unsigned int clk;
int bus_width;
@@ -323,25 +326,35 @@ static bool sh_mmcif_filter(struct dma_chan *chan, void *arg)
static void sh_mmcif_request_dma(struct sh_mmcif_host *host,
struct sh_mmcif_plat_data *pdata)
{
+ struct sh_dmae_slave *tx, *rx;
host->dma_active = false;
/* We can only either use DMA for both Tx and Rx or not use it at all */
if (pdata->dma) {
+ dev_warn(&host->pd->dev,
+ "Update your platform to use embedded DMA slave IDs\n");
+ tx = &pdata->dma->chan_priv_tx;
+ rx = &pdata->dma->chan_priv_rx;
+ } else {
+ tx = &host->dma_slave_tx;
+ tx->slave_id = pdata->slave_id_tx;
+ rx = &host->dma_slave_rx;
+ rx->slave_id = pdata->slave_id_rx;
+ }
+ if (tx->slave_id > 0 && rx->slave_id > 0) {
dma_cap_mask_t mask;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
- host->chan_tx = dma_request_channel(mask, sh_mmcif_filter,
- &pdata->dma->chan_priv_tx);
+ host->chan_tx = dma_request_channel(mask, sh_mmcif_filter, tx);
dev_dbg(&host->pd->dev, "%s: TX: got channel %p\n", __func__,
host->chan_tx);
if (!host->chan_tx)
return;
- host->chan_rx = dma_request_channel(mask, sh_mmcif_filter,
- &pdata->dma->chan_priv_rx);
+ host->chan_rx = dma_request_channel(mask, sh_mmcif_filter, rx);
dev_dbg(&host->pd->dev, "%s: RX: got channel %p\n", __func__,
host->chan_rx);
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index 0c4a672f5db6..41ae6466bd83 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -21,6 +21,7 @@
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
@@ -96,7 +97,8 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
struct tmio_mmc_host *host;
char clk_name[8];
- int i, irq, ret;
+ int irq, ret, i = 0;
+ bool multiplexed_isr = true;
priv = kzalloc(sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
if (priv == NULL) {
@@ -153,27 +155,60 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
if (ret < 0)
goto eprobe;
- for (i = 0; i < 3; i++) {
- irq = platform_get_irq(pdev, i);
- if (irq < 0) {
- if (i) {
- continue;
- } else {
- ret = irq;
- goto eirq;
- }
- }
- ret = request_irq(irq, tmio_mmc_irq, 0,
+ /*
+ * Allow one or more specific (named) ISRs or
+ * one or more multiplexed (un-named) ISRs.
+ */
+
+ irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_CARD_DETECT);
+ if (irq >= 0) {
+ multiplexed_isr = false;
+ ret = request_irq(irq, tmio_mmc_card_detect_irq, 0,
+ dev_name(&pdev->dev), host);
+ if (ret)
+ goto eirq_card_detect;
+ }
+
+ irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDIO);
+ if (irq >= 0) {
+ multiplexed_isr = false;
+ ret = request_irq(irq, tmio_mmc_sdio_irq, 0,
+ dev_name(&pdev->dev), host);
+ if (ret)
+ goto eirq_sdio;
+ }
+
+ irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDCARD);
+ if (irq >= 0) {
+ multiplexed_isr = false;
+ ret = request_irq(irq, tmio_mmc_sdcard_irq, 0,
dev_name(&pdev->dev), host);
- if (ret) {
- while (i--) {
- irq = platform_get_irq(pdev, i);
- if (irq >= 0)
- free_irq(irq, host);
- }
- goto eirq;
+ if (ret)
+ goto eirq_sdcard;
+ } else if (!multiplexed_isr) {
+ dev_err(&pdev->dev,
+ "Principal SD-card IRQ is missing among named interrupts\n");
+ ret = irq;
+ goto eirq_sdcard;
+ }
+
+ if (multiplexed_isr) {
+ while (1) {
+ irq = platform_get_irq(pdev, i);
+ if (irq < 0)
+ break;
+ i++;
+ ret = request_irq(irq, tmio_mmc_irq, 0,
+ dev_name(&pdev->dev), host);
+ if (ret)
+ goto eirq_multiplexed;
}
+
+ /* There must be at least one IRQ source */
+ if (!i)
+ goto eirq_multiplexed;
}
+
dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
mmc_hostname(host->mmc), (unsigned long)
(platform_get_resource(pdev,IORESOURCE_MEM, 0)->start),
@@ -181,7 +216,20 @@ static int __devinit sh_mobile_sdhi_probe(struct platform_device *pdev)
return ret;
-eirq:
+eirq_multiplexed:
+ while (i--) {
+ irq = platform_get_irq(pdev, i);
+ free_irq(irq, host);
+ }
+eirq_sdcard:
+ irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDIO);
+ if (irq >= 0)
+ free_irq(irq, host);
+eirq_sdio:
+ irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_CARD_DETECT);
+ if (irq >= 0)
+ free_irq(irq, host);
+eirq_card_detect:
tmio_mmc_host_remove(host);
eprobe:
clk_disable(priv->clk);
@@ -197,16 +245,17 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev)
struct tmio_mmc_host *host = mmc_priv(mmc);
struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
- int i, irq;
+ int i = 0, irq;
p->pdata = NULL;
tmio_mmc_host_remove(host);
- for (i = 0; i < 3; i++) {
- irq = platform_get_irq(pdev, i);
- if (irq >= 0)
- free_irq(irq, host);
+ while (1) {
+ irq = platform_get_irq(pdev, i++);
+ if (irq < 0)
+ break;
+ free_irq(irq, host);
}
clk_disable(priv->clk);
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 457c26ea09de..f70d04664cac 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -16,6 +16,7 @@
#include <linux/mmc/host.h>
#include <linux/highmem.h>
#include <linux/scatterlist.h>
+#include <linux/module.h>
#include <asm/io.h>
#define DRIVER_NAME "tifm_sd"
@@ -631,7 +632,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
}
if (host->req) {
- printk(KERN_ERR "%s : unfinished request detected\n",
+ pr_err("%s : unfinished request detected\n",
dev_name(&sock->dev));
mrq->cmd->error = -ETIMEDOUT;
goto err_out;
@@ -671,7 +672,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
r_data->flags & MMC_DATA_WRITE
? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE)) {
- printk(KERN_ERR "%s : scatterlist map failed\n",
+ pr_err("%s : scatterlist map failed\n",
dev_name(&sock->dev));
mrq->cmd->error = -ENOMEM;
goto err_out;
@@ -683,7 +684,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq)
? PCI_DMA_TODEVICE
: PCI_DMA_FROMDEVICE);
if (host->sg_len < 1) {
- printk(KERN_ERR "%s : scatterlist map failed\n",
+ pr_err("%s : scatterlist map failed\n",
dev_name(&sock->dev));
tifm_unmap_sg(sock, &host->bounce_buf, 1,
r_data->flags & MMC_DATA_WRITE
@@ -747,7 +748,7 @@ static void tifm_sd_end_cmd(unsigned long data)
host->req = NULL;
if (!mrq) {
- printk(KERN_ERR " %s : no request to complete?\n",
+ pr_err(" %s : no request to complete?\n",
dev_name(&sock->dev));
spin_unlock_irqrestore(&sock->lock, flags);
return;
@@ -786,8 +787,7 @@ static void tifm_sd_abort(unsigned long data)
{
struct tifm_sd *host = (struct tifm_sd*)data;
- printk(KERN_ERR
- "%s : card failed to respond for a long period of time "
+ pr_err("%s : card failed to respond for a long period of time "
"(%x, %x)\n",
dev_name(&host->dev->dev), host->req->cmd->opcode, host->cmd_flags);
@@ -905,7 +905,7 @@ static int tifm_sd_initialize_host(struct tifm_sd *host)
}
if (rc) {
- printk(KERN_ERR "%s : controller failed to reset\n",
+ pr_err("%s : controller failed to reset\n",
dev_name(&sock->dev));
return -ENODEV;
}
@@ -931,8 +931,7 @@ static int tifm_sd_initialize_host(struct tifm_sd *host)
}
if (rc) {
- printk(KERN_ERR
- "%s : card not ready - probe failed on initialization\n",
+ pr_err("%s : card not ready - probe failed on initialization\n",
dev_name(&sock->dev));
return -ENODEV;
}
@@ -953,7 +952,7 @@ static int tifm_sd_probe(struct tifm_dev *sock)
if (!(TIFM_SOCK_STATE_OCCUPIED
& readl(sock->addr + SOCK_PRESENT_STATE))) {
- printk(KERN_WARNING "%s : card gone, unexpectedly\n",
+ pr_warning("%s : card gone, unexpectedly\n",
dev_name(&sock->dev));
return rc;
}
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 44a9668c4b7a..a4ea10242787 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -88,8 +88,8 @@ static int __devinit tmio_mmc_probe(struct platform_device *pdev)
if (ret)
goto cell_disable;
- ret = request_irq(irq, tmio_mmc_irq, IRQF_DISABLED |
- IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), host);
+ ret = request_irq(irq, tmio_mmc_irq, IRQF_TRIGGER_FALLING,
+ dev_name(&pdev->dev), host);
if (ret)
goto host_remove;
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index eeaf64391fbe..3020f98218f0 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -79,6 +79,10 @@ struct tmio_mmc_host {
struct delayed_work delayed_reset_work;
struct work_struct done;
+ /* Cache IRQ mask */
+ u32 sdcard_irq_mask;
+ u32 sdio_irq_mask;
+
spinlock_t lock; /* protect host private data */
unsigned long last_req_ts;
struct mutex ios_lock; /* protect set_ios() context */
@@ -93,6 +97,9 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
irqreturn_t tmio_mmc_irq(int irq, void *devid);
+irqreturn_t tmio_mmc_sdcard_irq(int irq, void *devid);
+irqreturn_t tmio_mmc_card_detect_irq(int irq, void *devid);
+irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid);
static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
unsigned long *flags)
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index 1f16357e7301..d85a60cda167 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -48,14 +48,14 @@
void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
- u32 mask = sd_ctrl_read32(host, CTL_IRQ_MASK) & ~(i & TMIO_MASK_IRQ);
- sd_ctrl_write32(host, CTL_IRQ_MASK, mask);
+ host->sdcard_irq_mask &= ~(i & TMIO_MASK_IRQ);
+ sd_ctrl_write32(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
}
void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
{
- u32 mask = sd_ctrl_read32(host, CTL_IRQ_MASK) | (i & TMIO_MASK_IRQ);
- sd_ctrl_write32(host, CTL_IRQ_MASK, mask);
+ host->sdcard_irq_mask |= (i & TMIO_MASK_IRQ);
+ sd_ctrl_write32(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
}
static void tmio_mmc_ack_mmc_irqs(struct tmio_mmc_host *host, u32 i)
@@ -92,7 +92,7 @@ static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
static void pr_debug_status(u32 status)
{
int i = 0;
- printk(KERN_DEBUG "status: %08x = ", status);
+ pr_debug("status: %08x = ", status);
STATUS_TO_TEXT(CARD_REMOVE, status, i);
STATUS_TO_TEXT(CARD_INSERT, status, i);
STATUS_TO_TEXT(SIGSTATE, status, i);
@@ -127,11 +127,13 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
if (enable) {
host->sdio_irq_enabled = 1;
+ host->sdio_irq_mask = TMIO_SDIO_MASK_ALL &
+ ~TMIO_SDIO_STAT_IOIRQ;
sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);
- sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK,
- (TMIO_SDIO_MASK_ALL & ~TMIO_SDIO_STAT_IOIRQ));
+ sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
} else {
- sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, TMIO_SDIO_MASK_ALL);
+ host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
+ sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0000);
host->sdio_irq_enabled = 0;
}
@@ -543,45 +545,20 @@ out:
spin_unlock(&host->lock);
}
-irqreturn_t tmio_mmc_irq(int irq, void *devid)
+static void tmio_mmc_card_irq_status(struct tmio_mmc_host *host,
+ int *ireg, int *status)
{
- struct tmio_mmc_host *host = devid;
- struct mmc_host *mmc = host->mmc;
- struct tmio_mmc_data *pdata = host->pdata;
- unsigned int ireg, irq_mask, status;
- unsigned int sdio_ireg, sdio_irq_mask, sdio_status;
-
- pr_debug("MMC IRQ begin\n");
-
- status = sd_ctrl_read32(host, CTL_STATUS);
- irq_mask = sd_ctrl_read32(host, CTL_IRQ_MASK);
- ireg = status & TMIO_MASK_IRQ & ~irq_mask;
-
- sdio_ireg = 0;
- if (!ireg && pdata->flags & TMIO_MMC_SDIO_IRQ) {
- sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
- sdio_irq_mask = sd_ctrl_read16(host, CTL_SDIO_IRQ_MASK);
- sdio_ireg = sdio_status & TMIO_SDIO_MASK_ALL & ~sdio_irq_mask;
+ *status = sd_ctrl_read32(host, CTL_STATUS);
+ *ireg = *status & TMIO_MASK_IRQ & ~host->sdcard_irq_mask;
- sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status & ~TMIO_SDIO_MASK_ALL);
-
- if (sdio_ireg && !host->sdio_irq_enabled) {
- pr_warning("tmio_mmc: Spurious SDIO IRQ, disabling! 0x%04x 0x%04x 0x%04x\n",
- sdio_status, sdio_irq_mask, sdio_ireg);
- tmio_mmc_enable_sdio_irq(mmc, 0);
- goto out;
- }
-
- if (mmc->caps & MMC_CAP_SDIO_IRQ &&
- sdio_ireg & TMIO_SDIO_STAT_IOIRQ)
- mmc_signal_sdio_irq(mmc);
-
- if (sdio_ireg)
- goto out;
- }
+ pr_debug_status(*status);
+ pr_debug_status(*ireg);
+}
- pr_debug_status(status);
- pr_debug_status(ireg);
+static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
+ int ireg, int status)
+{
+ struct mmc_host *mmc = host->mmc;
/* Card insert / remove attempts */
if (ireg & (TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE)) {
@@ -591,43 +568,102 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid)
((ireg & TMIO_STAT_CARD_INSERT) && !mmc->card)) &&
!work_pending(&mmc->detect.work))
mmc_detect_change(host->mmc, msecs_to_jiffies(100));
- goto out;
+ return true;
}
- /* CRC and other errors */
-/* if (ireg & TMIO_STAT_ERR_IRQ)
- * handled |= tmio_error_irq(host, irq, stat);
- */
+ return false;
+}
+
+irqreturn_t tmio_mmc_card_detect_irq(int irq, void *devid)
+{
+ unsigned int ireg, status;
+ struct tmio_mmc_host *host = devid;
+
+ tmio_mmc_card_irq_status(host, &ireg, &status);
+ __tmio_mmc_card_detect_irq(host, ireg, status);
+ return IRQ_HANDLED;
+}
+EXPORT_SYMBOL(tmio_mmc_card_detect_irq);
+
+static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host,
+ int ireg, int status)
+{
/* Command completion */
if (ireg & (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT)) {
tmio_mmc_ack_mmc_irqs(host,
TMIO_STAT_CMDRESPEND |
TMIO_STAT_CMDTIMEOUT);
tmio_mmc_cmd_irq(host, status);
- goto out;
+ return true;
}
/* Data transfer */
if (ireg & (TMIO_STAT_RXRDY | TMIO_STAT_TXRQ)) {
tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_RXRDY | TMIO_STAT_TXRQ);
tmio_mmc_pio_irq(host);
- goto out;
+ return true;
}
/* Data transfer completion */
if (ireg & TMIO_STAT_DATAEND) {
tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_DATAEND);
tmio_mmc_data_irq(host);
- goto out;
+ return true;
}
- pr_warning("tmio_mmc: Spurious irq, disabling! "
- "0x%08x 0x%08x 0x%08x\n", status, irq_mask, ireg);
- pr_debug_status(status);
- tmio_mmc_disable_mmc_irqs(host, status & ~irq_mask);
+ return false;
+}
+
+irqreturn_t tmio_mmc_sdcard_irq(int irq, void *devid)
+{
+ unsigned int ireg, status;
+ struct tmio_mmc_host *host = devid;
+
+ tmio_mmc_card_irq_status(host, &ireg, &status);
+ __tmio_mmc_sdcard_irq(host, ireg, status);
+
+ return IRQ_HANDLED;
+}
+EXPORT_SYMBOL(tmio_mmc_sdcard_irq);
+
+irqreturn_t tmio_mmc_sdio_irq(int irq, void *devid)
+{
+ struct tmio_mmc_host *host = devid;
+ struct mmc_host *mmc = host->mmc;
+ struct tmio_mmc_data *pdata = host->pdata;
+ unsigned int ireg, status;
+
+ if (!(pdata->flags & TMIO_MMC_SDIO_IRQ))
+ return IRQ_HANDLED;
+
+ status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
+ ireg = status & TMIO_SDIO_MASK_ALL & ~host->sdcard_irq_mask;
+
+ sd_ctrl_write16(host, CTL_SDIO_STATUS, status & ~TMIO_SDIO_MASK_ALL);
+
+ if (mmc->caps & MMC_CAP_SDIO_IRQ && ireg & TMIO_SDIO_STAT_IOIRQ)
+ mmc_signal_sdio_irq(mmc);
+
+ return IRQ_HANDLED;
+}
+EXPORT_SYMBOL(tmio_mmc_sdio_irq);
+
+irqreturn_t tmio_mmc_irq(int irq, void *devid)
+{
+ struct tmio_mmc_host *host = devid;
+ unsigned int ireg, status;
+
+ pr_debug("MMC IRQ begin\n");
+
+ tmio_mmc_card_irq_status(host, &ireg, &status);
+ if (__tmio_mmc_card_detect_irq(host, ireg, status))
+ return IRQ_HANDLED;
+ if (__tmio_mmc_sdcard_irq(host, ireg, status))
+ return IRQ_HANDLED;
+
+ tmio_mmc_sdio_irq(irq, devid);
-out:
return IRQ_HANDLED;
}
EXPORT_SYMBOL(tmio_mmc_irq);
@@ -882,6 +918,7 @@ int __devinit tmio_mmc_host_probe(struct tmio_mmc_host **host,
tmio_mmc_clk_stop(_host);
tmio_mmc_reset(_host);
+ _host->sdcard_irq_mask = sd_ctrl_read32(_host, CTL_IRQ_MASK);
tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL);
if (pdata->flags & TMIO_MMC_SDIO_IRQ)
tmio_mmc_enable_sdio_irq(mmc, 0);
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 4dfe2c02ea91..4b83c43f950d 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -9,6 +9,7 @@
*/
#include <linux/pci.h>
+#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/highmem.h>
#include <linux/delay.h>
@@ -1191,7 +1192,7 @@ static void __devexit via_sd_remove(struct pci_dev *pcidev)
mmiowb();
if (sdhost->mrq) {
- printk(KERN_ERR "%s: Controller removed during "
+ pr_err("%s: Controller removed during "
"transfer\n", mmc_hostname(sdhost->mmc));
/* make sure all DMA is stopped */
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 62e5a4d171e1..64acd9ce141c 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -194,7 +194,7 @@ static void wbsd_reset(struct wbsd_host *host)
{
u8 setup;
- printk(KERN_ERR "%s: Resetting chip\n", mmc_hostname(host->mmc));
+ pr_err("%s: Resetting chip\n", mmc_hostname(host->mmc));
/*
* Soft reset of chip (SD/MMC part).
@@ -721,7 +721,7 @@ static void wbsd_finish_data(struct wbsd_host *host, struct mmc_data *data)
* Any leftover data?
*/
if (count) {
- printk(KERN_ERR "%s: Incomplete DMA transfer. "
+ pr_err("%s: Incomplete DMA transfer. "
"%d bytes left.\n",
mmc_hostname(host->mmc), count);
@@ -803,7 +803,7 @@ static void wbsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
default:
#ifdef CONFIG_MMC_DEBUG
- printk(KERN_WARNING "%s: Data command %d is not "
+ pr_warning("%s: Data command %d is not "
"supported by this controller.\n",
mmc_hostname(host->mmc), cmd->opcode);
#endif
@@ -1029,7 +1029,7 @@ static void wbsd_tasklet_card(unsigned long param)
host->flags &= ~WBSD_FCARD_PRESENT;
if (host->mrq) {
- printk(KERN_ERR "%s: Card removed during transfer!\n",
+ pr_err("%s: Card removed during transfer!\n",
mmc_hostname(host->mmc));
wbsd_reset(host);
@@ -1429,7 +1429,7 @@ free:
free_dma(dma);
err:
- printk(KERN_WARNING DRIVER_NAME ": Unable to allocate DMA %d. "
+ pr_warning(DRIVER_NAME ": Unable to allocate DMA %d. "
"Falling back on FIFO.\n", dma);
}
@@ -1664,7 +1664,7 @@ static int __devinit wbsd_init(struct device *dev, int base, int irq, int dma,
ret = wbsd_scan(host);
if (ret) {
if (pnp && (ret == -ENODEV)) {
- printk(KERN_WARNING DRIVER_NAME
+ pr_warning(DRIVER_NAME
": Unable to confirm device presence. You may "
"experience lock-ups.\n");
} else {
@@ -1688,7 +1688,7 @@ static int __devinit wbsd_init(struct device *dev, int base, int irq, int dma,
*/
if (pnp) {
if ((host->config != 0) && !wbsd_chip_validate(host)) {
- printk(KERN_WARNING DRIVER_NAME
+ pr_warning(DRIVER_NAME
": PnP active but chip not configured! "
"You probably have a buggy BIOS. "
"Configuring chip manually.\n");
@@ -1720,7 +1720,7 @@ static int __devinit wbsd_init(struct device *dev, int base, int irq, int dma,
mmc_add_host(mmc);
- printk(KERN_INFO "%s: W83L51xD", mmc_hostname(mmc));
+ pr_info("%s: W83L51xD", mmc_hostname(mmc));
if (host->chip_id != 0)
printk(" id %x", (int)host->chip_id);
printk(" at 0x%x irq %d", (int)host->base, (int)host->irq);
@@ -1909,7 +1909,7 @@ static int wbsd_pnp_resume(struct pnp_dev *pnp_dev)
*/
if (host->config != 0) {
if (!wbsd_chip_validate(host)) {
- printk(KERN_WARNING DRIVER_NAME
+ pr_warning(DRIVER_NAME
": PnP active but chip not configured! "
"You probably have a buggy BIOS. "
"Configuring chip manually.\n");
@@ -1973,9 +1973,9 @@ static int __init wbsd_drv_init(void)
{
int result;
- printk(KERN_INFO DRIVER_NAME
+ pr_info(DRIVER_NAME
": Winbond W83L51xD SD/MMC card interface driver\n");
- printk(KERN_INFO DRIVER_NAME ": Copyright(c) Pierre Ossman\n");
+ pr_info(DRIVER_NAME ": Copyright(c) Pierre Ossman\n");
#ifdef CONFIG_PNP
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 3e09b345f4d6..4c7a4b2104bf 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -1,7 +1,7 @@
#ifndef __LINUX_ATMEL_MCI_H
#define __LINUX_ATMEL_MCI_H
-#define ATMEL_MCI_MAX_NR_SLOTS 2
+#define ATMCI_MAX_NR_SLOTS 2
/**
* struct mci_slot_pdata - board-specific per-slot configuration
@@ -33,7 +33,7 @@ struct mci_slot_pdata {
*/
struct mci_platform_data {
struct mci_dma_data *dma_slave;
- struct mci_slot_pdata slot[ATMEL_MCI_MAX_NR_SLOTS];
+ struct mci_slot_pdata slot[ATMCI_MAX_NR_SLOTS];
};
#endif /* __LINUX_ATMEL_MCI_H */
diff --git a/include/linux/atmel_pdc.h b/include/linux/atmel_pdc.h
index 5058a31d2ce8..63499ce806ea 100644
--- a/include/linux/atmel_pdc.h
+++ b/include/linux/atmel_pdc.h
@@ -33,4 +33,6 @@
#define ATMEL_PDC_PTSR 0x124 /* Transfer Status Register */
+#define ATMEL_PDC_SCND_BUF_OFF 0x10 /* Offset between first and second buffer registers */
+
#endif
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index b460fc2af8a1..415f2db414e1 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -50,8 +50,12 @@ struct mmc_ext_csd {
u8 rel_sectors;
u8 rel_param;
u8 part_config;
+ u8 cache_ctrl;
+ u8 rst_n_function;
unsigned int part_time; /* Units: ms */
unsigned int sa_timeout; /* Units: 100ns */
+ unsigned int generic_cmd6_time; /* Units: 10ms */
+ unsigned int power_off_longtime; /* Units: ms */
unsigned int hs_max_dtr;
unsigned int sectors;
unsigned int card_type;
@@ -63,11 +67,15 @@ struct mmc_ext_csd {
bool enhanced_area_en; /* enable bit */
unsigned long long enhanced_area_offset; /* Units: Byte */
unsigned int enhanced_area_size; /* Units: KB */
- unsigned int boot_size; /* in bytes */
+ unsigned int cache_size; /* Units: KB */
+ bool hpi_en; /* HPI enablebit */
+ bool hpi; /* HPI support bit */
+ unsigned int hpi_cmd; /* cmd used as HPI */
u8 raw_partition_support; /* 160 */
u8 raw_erased_mem_count; /* 181 */
u8 raw_ext_csd_structure; /* 194 */
u8 raw_card_type; /* 196 */
+ u8 out_of_int_time; /* 198 */
u8 raw_s_a_timeout; /* 217 */
u8 raw_hc_erase_gap_size; /* 221 */
u8 raw_erase_timeout_mult; /* 223 */
@@ -77,6 +85,9 @@ struct mmc_ext_csd {
u8 raw_sec_feature_support;/* 231 */
u8 raw_trim_mult; /* 232 */
u8 raw_sectors[4]; /* 212 - 4 bytes */
+
+ unsigned int feature_support;
+#define MMC_DISCARD_FEATURE BIT(0) /* CMD38 feature */
};
struct sd_scr {
@@ -157,6 +168,24 @@ struct sdio_func_tuple;
#define SDIO_MAX_FUNCS 7
+/* The number of MMC physical partitions. These consist of:
+ * boot partitions (2), general purpose partitions (4) in MMC v4.4.
+ */
+#define MMC_NUM_BOOT_PARTITION 2
+#define MMC_NUM_GP_PARTITION 4
+#define MMC_NUM_PHY_PARTITION 6
+#define MAX_MMC_PART_NAME_LEN 20
+
+/*
+ * MMC Physical partitions
+ */
+struct mmc_part {
+ unsigned int size; /* partition size (in bytes) */
+ unsigned int part_cfg; /* partition type */
+ char name[MAX_MMC_PART_NAME_LEN];
+ bool force_ro; /* to make boot parts RO by default */
+};
+
/*
* MMC device
*/
@@ -188,6 +217,13 @@ struct mmc_card {
#define MMC_QUIRK_DISABLE_CD (1<<5) /* disconnect CD/DAT[3] resistor */
#define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */
#define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */
+#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */
+ /* byte mode */
+ unsigned int poweroff_notify_state; /* eMMC4.5 notify feature */
+#define MMC_NO_POWER_NOTIFICATION 0
+#define MMC_POWERED_ON 1
+#define MMC_POWEROFF_SHORT 2
+#define MMC_POWEROFF_LONG 3
unsigned int erase_size; /* erase size in sectors */
unsigned int erase_shift; /* if erase unit is power 2 */
@@ -216,9 +252,24 @@ struct mmc_card {
unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */
struct dentry *debugfs_root;
+ struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */
+ unsigned int nr_parts;
};
/*
+ * This function fill contents in mmc_part.
+ */
+static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
+ unsigned int part_cfg, char *name, int idx, bool ro)
+{
+ card->part[card->nr_parts].size = size;
+ card->part[card->nr_parts].part_cfg = part_cfg;
+ sprintf(card->part[card->nr_parts].name, name, idx);
+ card->part[card->nr_parts].force_ro = ro;
+ card->nr_parts++;
+}
+
+/*
* The world is not perfect and supplies us with broken mmc/sdio devices.
* For at least some of these bugs we need a work-around.
*/
@@ -377,6 +428,11 @@ static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
}
+static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
+{
+ return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
+}
+
#define mmc_card_name(c) ((c)->cid.prod_name)
#define mmc_card_id(c) (dev_name(&(c)->dev))
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index b8b1b7a311f1..174a844a5dda 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -136,6 +136,7 @@ struct mmc_async_req;
extern struct mmc_async_req *mmc_start_req(struct mmc_host *,
struct mmc_async_req *, int *);
+extern int mmc_interrupt_hpi(struct mmc_card *);
extern void mmc_wait_for_req(struct mmc_host *, struct mmc_request *);
extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int);
extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *);
@@ -146,6 +147,7 @@ extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
#define MMC_ERASE_ARG 0x00000000
#define MMC_SECURE_ERASE_ARG 0x80000000
#define MMC_TRIM_ARG 0x00000001
+#define MMC_DISCARD_ARG 0x00000003
#define MMC_SECURE_TRIM1_ARG 0x80000001
#define MMC_SECURE_TRIM2_ARG 0x80008000
@@ -156,12 +158,17 @@ extern int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
unsigned int arg);
extern int mmc_can_erase(struct mmc_card *card);
extern int mmc_can_trim(struct mmc_card *card);
+extern int mmc_can_discard(struct mmc_card *card);
+extern int mmc_can_sanitize(struct mmc_card *card);
extern int mmc_can_secure_erase_trim(struct mmc_card *card);
extern int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from,
unsigned int nr);
extern unsigned int mmc_calc_max_discard(struct mmc_card *card);
extern int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen);
+extern int mmc_hw_reset(struct mmc_host *host);
+extern int mmc_hw_reset_check(struct mmc_host *host);
+extern int mmc_can_reset(struct mmc_card *card);
extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *);
extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int);
@@ -171,6 +178,8 @@ extern void mmc_release_host(struct mmc_host *host);
extern void mmc_do_release_host(struct mmc_host *host);
extern int mmc_try_claim_host(struct mmc_host *host);
+extern int mmc_flush_cache(struct mmc_card *);
+
/**
* mmc_claim_host - exclusively claim a host
* @host: mmc host to claim
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 6b46819705d1..6dc9b80568a0 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -72,6 +72,8 @@ struct mmc_data;
* rate and timeout calculations.
* @current_speed: Configured rate of the controller.
* @num_slots: Number of slots available.
+ * @verid: Denote Version ID.
+ * @data_offset: Set the offset of DATA register according to VERID.
* @pdev: Platform device associated with the MMC controller.
* @pdata: Platform data associated with the MMC controller.
* @slot: Slots sharing this MMC controller.
@@ -147,6 +149,8 @@ struct dw_mci {
u32 current_speed;
u32 num_slots;
u32 fifoth_val;
+ u16 verid;
+ u16 data_offset;
struct platform_device *pdev;
struct dw_mci_board *pdata;
struct dw_mci_slot *slot[MAX_MCI_SLOTS];
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 1d09562ccf73..a3ac9c48e5de 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -12,6 +12,7 @@
#include <linux/leds.h>
#include <linux/sched.h>
+#include <linux/fault-inject.h>
#include <linux/mmc/core.h>
#include <linux/mmc/pm.h>
@@ -108,6 +109,9 @@ struct mmc_host_ops {
* It is optional for the host to implement pre_req and post_req in
* order to support double buffering of requests (prepare one
* request while another request is active).
+ * pre_req() must always be followed by a post_req().
+ * To undo a call made to pre_req(), call post_req() with
+ * a nonzero err condition.
*/
void (*post_req)(struct mmc_host *host, struct mmc_request *req,
int err);
@@ -147,6 +151,7 @@ struct mmc_host_ops {
int (*execute_tuning)(struct mmc_host *host);
void (*enable_preset_value)(struct mmc_host *host, bool enable);
int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv);
+ void (*hw_reset)(struct mmc_host *host);
};
struct mmc_card;
@@ -229,8 +234,20 @@ struct mmc_host {
#define MMC_CAP_MAX_CURRENT_600 (1 << 28) /* Host max current limit is 600mA */
#define MMC_CAP_MAX_CURRENT_800 (1 << 29) /* Host max current limit is 800mA */
#define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */
+#define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */
+
+ unsigned int caps2; /* More host capabilities */
+
+#define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */
+#define MMC_CAP2_CACHE_CTRL (1 << 1) /* Allow cache control */
+#define MMC_CAP2_POWEROFF_NOTIFY (1 << 2) /* Notify poweroff supported */
+#define MMC_CAP2_NO_MULTI_READ (1 << 3) /* Multiblock reads don't work */
mmc_pm_flag_t pm_caps; /* supported pm features */
+ unsigned int power_notify_type;
+#define MMC_HOST_PW_NOTIFY_NONE 0
+#define MMC_HOST_PW_NOTIFY_SHORT 1
+#define MMC_HOST_PW_NOTIFY_LONG 2
#ifdef CONFIG_MMC_CLKGATE
int clk_requests; /* internal reference counter */
@@ -302,6 +319,10 @@ struct mmc_host {
struct mmc_async_req *areq; /* active async req */
+#ifdef CONFIG_FAIL_MMC_REQUEST
+ struct fault_attr fail_mmc_request;
+#endif
+
unsigned long private[0] ____cacheline_aligned;
};
@@ -330,6 +351,8 @@ extern int mmc_power_restore_host(struct mmc_host *host);
extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
+extern int mmc_cache_ctrl(struct mmc_host *, u8);
+
static inline void mmc_signal_sdio_irq(struct mmc_host *host)
{
host->ops->enable_sdio_irq(host, 0);
@@ -394,4 +417,10 @@ static inline int mmc_host_cmd23(struct mmc_host *host)
{
return host->caps & MMC_CAP_CMD23;
}
+
+static inline int mmc_boot_partition_access(struct mmc_host *host)
+{
+ return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC);
+}
+
#endif /* LINUX_MMC_HOST_H */
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 5a794cb503ea..0e7135697d11 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -270,18 +270,31 @@ struct _mmc_csd {
* EXT_CSD fields
*/
+#define EXT_CSD_FLUSH_CACHE 32 /* W */
+#define EXT_CSD_CACHE_CTRL 33 /* R/W */
+#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */
+#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */
+#define EXT_CSD_HPI_MGMT 161 /* R/W */
+#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
+#define EXT_CSD_SANITIZE_START 165 /* W */
#define EXT_CSD_WR_REL_PARAM 166 /* RO */
#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
#define EXT_CSD_PART_CONFIG 179 /* R/W */
#define EXT_CSD_ERASED_MEM_CONT 181 /* RO */
#define EXT_CSD_BUS_WIDTH 183 /* R/W */
#define EXT_CSD_HS_TIMING 185 /* R/W */
+#define EXT_CSD_POWER_CLASS 187 /* R/W */
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_STRUCTURE 194 /* RO */
#define EXT_CSD_CARD_TYPE 196 /* RO */
+#define EXT_CSD_OUT_OF_INTERRUPT_TIME 198 /* RO */
#define EXT_CSD_PART_SWITCH_TIME 199 /* RO */
+#define EXT_CSD_PWR_CL_52_195 200 /* RO */
+#define EXT_CSD_PWR_CL_26_195 201 /* RO */
+#define EXT_CSD_PWR_CL_52_360 202 /* RO */
+#define EXT_CSD_PWR_CL_26_360 203 /* RO */
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
#define EXT_CSD_S_A_TIMEOUT 217 /* RO */
#define EXT_CSD_REL_WR_SEC_C 222 /* RO */
@@ -293,6 +306,14 @@ struct _mmc_csd {
#define EXT_CSD_SEC_ERASE_MULT 230 /* RO */
#define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */
#define EXT_CSD_TRIM_MULT 232 /* RO */
+#define EXT_CSD_PWR_CL_200_195 236 /* RO */
+#define EXT_CSD_PWR_CL_200_360 237 /* RO */
+#define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */
+#define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */
+#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */
+#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */
+#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
+#define EXT_CSD_HPI_FEATURES 503 /* RO */
/*
* EXT_CSD field definitions
@@ -302,7 +323,9 @@ struct _mmc_csd {
#define EXT_CSD_PART_CONFIG_ACC_MASK (0x7)
#define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1)
-#define EXT_CSD_PART_CONFIG_ACC_BOOT1 (0x2)
+#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4)
+
+#define EXT_CSD_PART_SUPPORT_PART_EN (0x1)
#define EXT_CSD_CMD_SET_NORMAL (1<<0)
#define EXT_CSD_CMD_SET_SECURE (1<<1)
@@ -327,7 +350,20 @@ struct _mmc_csd {
#define EXT_CSD_SEC_ER_EN BIT(0)
#define EXT_CSD_SEC_BD_BLK_EN BIT(2)
#define EXT_CSD_SEC_GB_CL_EN BIT(4)
+#define EXT_CSD_SEC_SANITIZE BIT(6) /* v4.5 only */
+
+#define EXT_CSD_RST_N_EN_MASK 0x3
+#define EXT_CSD_RST_N_ENABLED 1 /* RST_n is enabled on card */
+
+#define EXT_CSD_NO_POWER_NOTIFICATION 0
+#define EXT_CSD_POWER_ON 1
+#define EXT_CSD_POWER_OFF_SHORT 2
+#define EXT_CSD_POWER_OFF_LONG 3
+#define EXT_CSD_PWR_CL_8BIT_MASK 0xF0 /* 8 bit PWR CLS */
+#define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */
+#define EXT_CSD_PWR_CL_8BIT_SHIFT 4
+#define EXT_CSD_PWR_CL_4BIT_SHIFT 0
/*
* MMC_SWITCH access modes
*/
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 5666f3abfab7..e4b69353678d 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -88,6 +88,10 @@ struct sdhci_host {
/* The read-only detection via SDHCI_PRESENT_STATE register is unstable */
#define SDHCI_QUIRK_UNSTABLE_RO_DETECT (1<<31)
+ unsigned int quirks2; /* More deviations from spec. */
+
+#define SDHCI_QUIRK2_OWN_CARD_DETECTION (1<<0)
+
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
@@ -115,6 +119,8 @@ struct sdhci_host {
#define SDHCI_NEEDS_RETUNING (1<<5) /* Host needs retuning */
#define SDHCI_AUTO_CMD12 (1<<6) /* Auto CMD12 support */
#define SDHCI_AUTO_CMD23 (1<<7) /* Auto CMD23 support */
+#define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */
+#define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */
unsigned int version; /* SDHCI spec. version */
@@ -125,6 +131,8 @@ struct sdhci_host {
unsigned int clock; /* Current clock (MHz) */
u8 pwr; /* Current voltage */
+ bool runtime_suspended; /* Host is runtime suspended */
+
struct mmc_request *mrq; /* Current request */
struct mmc_command *cmd; /* Current command */
struct mmc_data *data; /* Current data request */
diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 2a2e9905a247..e0b1123497b9 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -72,11 +72,13 @@
#define SDIO_CCCR_REV_1_00 0 /* CCCR/FBR Version 1.00 */
#define SDIO_CCCR_REV_1_10 1 /* CCCR/FBR Version 1.10 */
#define SDIO_CCCR_REV_1_20 2 /* CCCR/FBR Version 1.20 */
+#define SDIO_CCCR_REV_3_00 3 /* CCCR/FBR Version 3.00 */
#define SDIO_SDIO_REV_1_00 0 /* SDIO Spec Version 1.00 */
#define SDIO_SDIO_REV_1_10 1 /* SDIO Spec Version 1.10 */
#define SDIO_SDIO_REV_1_20 2 /* SDIO Spec Version 1.20 */
#define SDIO_SDIO_REV_2_00 3 /* SDIO Spec Version 2.00 */
+#define SDIO_SDIO_REV_3_00 4 /* SDIO Spec Version 3.00 */
#define SDIO_CCCR_SD 0x01
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index 0222cd8ebe76..04ff452bf5c3 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -41,7 +41,9 @@ struct sh_mmcif_plat_data {
void (*set_pwr)(struct platform_device *pdev, int state);
void (*down_pwr)(struct platform_device *pdev);
int (*get_cd)(struct platform_device *pdef);
- struct sh_mmcif_dma *dma;
+ struct sh_mmcif_dma *dma; /* Deprecated. Instead */
+ unsigned int slave_id_tx; /* use embedded slave_id_[tr]x */
+ unsigned int slave_id_rx;
u8 sup_pclk; /* 1 :SH7757, 0: SH7724/SH7372 */
unsigned long caps;
u32 ocr;
diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h
index bd50b365167f..71b805451bd8 100644
--- a/include/linux/mmc/sh_mobile_sdhi.h
+++ b/include/linux/mmc/sh_mobile_sdhi.h
@@ -6,6 +6,10 @@
struct platform_device;
struct tmio_mmc_data;
+#define SH_MOBILE_SDHI_IRQ_CARD_DETECT "card_detect"
+#define SH_MOBILE_SDHI_IRQ_SDCARD "sdcard"
+#define SH_MOBILE_SDHI_IRQ_SDIO "sdio"
+
struct sh_mobile_sdhi_info {
int dma_slave_tx;
int dma_slave_rx;
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 75330bd87565..c583a57cddfe 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1070,6 +1070,17 @@ config FAIL_IO_TIMEOUT
Only works with drivers that use the generic timeout handling,
for others it wont do anything.
+config FAIL_MMC_REQUEST
+ bool "Fault-injection capability for MMC IO"
+ select DEBUG_FS
+ depends on FAULT_INJECTION && MMC
+ help
+ Provide fault-injection capability for MMC IO.
+ This will make the mmc core return data errors. This is
+ useful to test the error handling in the mmc block device
+ and to test how the mmc host driver handles retries from
+ the block device.
+
config FAULT_INJECTION_DEBUG_FS
bool "Debugfs entries for fault-injection capabilities"
depends on FAULT_INJECTION && SYSFS && DEBUG_FS
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index f193b7796449..4f7554025e30 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -14,7 +14,7 @@
* setup_fault_attr() is a helper function for various __setup handlers, so it
* returns 0 on error, because that is what __setup handlers do.
*/
-int __init setup_fault_attr(struct fault_attr *attr, char *str)
+int setup_fault_attr(struct fault_attr *attr, char *str)
{
unsigned long probability;
unsigned long interval;
@@ -36,6 +36,7 @@ int __init setup_fault_attr(struct fault_attr *attr, char *str)
return 1;
}
+EXPORT_SYMBOL_GPL(setup_fault_attr);
static void fail_dump(struct fault_attr *attr)
{
@@ -130,6 +131,7 @@ bool should_fail(struct fault_attr *attr, ssize_t size)
return true;
}
+EXPORT_SYMBOL_GPL(should_fail);
#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
@@ -243,5 +245,6 @@ fail:
return ERR_PTR(-ENOMEM);
}
+EXPORT_SYMBOL_GPL(fault_create_debugfs_attr);
#endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */

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