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authorYaniv Rosner <yanivr@broadcom.com>2011-08-02 22:59:32 +0000
committerDavid S. Miller <davem@davemloft.net>2011-08-03 03:22:17 -0700
commit157fa283a7cb5bc6a55dd4e0daf6eeef66adf354 (patch)
tree40c5e3948438124045acd346f4c0672a7c4a1df3 /drivers/net/bnx2x
parentde6f3377d2da3b384ca3d716ffb8687ad175788a (diff)
bnx2x: Fix BCM578xx-B0 MDIO access
Fix MDIO access to Warpcore on new chip version of 578xx. Signed-off-by: Yaniv Rosner <yanivr@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bnx2x')
-rw-r--r--drivers/net/bnx2x/bnx2x_link.c16
-rw-r--r--drivers/net/bnx2x/bnx2x_link.h1
-rw-r--r--drivers/net/bnx2x/bnx2x_reg.h4
3 files changed, 18 insertions, 3 deletions
diff --git a/drivers/net/bnx2x/bnx2x_link.c b/drivers/net/bnx2x/bnx2x_link.c
index 8e68e1582ec2..45255bdc5136 100644
--- a/drivers/net/bnx2x/bnx2x_link.c
+++ b/drivers/net/bnx2x/bnx2x_link.c
@@ -2953,7 +2953,9 @@ static int bnx2x_cl45_read(struct bnx2x *bp, struct bnx2x_phy *phy,
u32 val;
u16 i;
int rc = 0;
-
+ if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
+ bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
+ EMAC_MDIO_STATUS_10MB);
/* address */
val = ((phy->addr << 21) | (devad << 16) | reg |
EMAC_MDIO_COMM_COMMAND_ADDRESS |
@@ -3007,6 +3009,9 @@ static int bnx2x_cl45_read(struct bnx2x *bp, struct bnx2x_phy *phy,
}
}
+ if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
+ bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
+ EMAC_MDIO_STATUS_10MB);
return rc;
}
@@ -3016,6 +3021,9 @@ static int bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
u32 tmp;
u8 i;
int rc = 0;
+ if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
+ bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
+ EMAC_MDIO_STATUS_10MB);
/* address */
@@ -3069,7 +3077,9 @@ static int bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
}
}
-
+ if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
+ bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
+ EMAC_MDIO_STATUS_10MB);
return rc;
}
@@ -11118,6 +11128,8 @@ static int bnx2x_populate_int_phy(struct bnx2x *bp, u32 shmem_base, u8 port,
*/
if (CHIP_REV(bp) == CHIP_REV_Ax)
phy->flags |= FLAGS_MDC_MDIO_WA;
+ else
+ phy->flags |= FLAGS_MDC_MDIO_WA_B0;
} else {
switch (switch_cfg) {
case SWITCH_CFG_1G:
diff --git a/drivers/net/bnx2x/bnx2x_link.h b/drivers/net/bnx2x/bnx2x_link.h
index 7ee6b51f4fb8..c12db6da213e 100644
--- a/drivers/net/bnx2x/bnx2x_link.h
+++ b/drivers/net/bnx2x/bnx2x_link.h
@@ -145,6 +145,7 @@ struct bnx2x_phy {
#define FLAGS_SFP_NOT_APPROVED (1<<7)
#define FLAGS_MDC_MDIO_WA (1<<8)
#define FLAGS_DUMMY_READ (1<<9)
+#define FLAGS_MDC_MDIO_WA_B0 (1<<10)
#define FLAGS_TX_ERROR_CHECK (1<<12)
/* preemphasis values for the rx side */
diff --git a/drivers/net/bnx2x/bnx2x_reg.h b/drivers/net/bnx2x/bnx2x_reg.h
index d84642aca450..27b5ecb11830 100644
--- a/drivers/net/bnx2x/bnx2x_reg.h
+++ b/drivers/net/bnx2x/bnx2x_reg.h
@@ -5624,8 +5624,9 @@
#define EMAC_MDIO_COMM_START_BUSY (1L<<29)
#define EMAC_MDIO_MODE_AUTO_POLL (1L<<4)
#define EMAC_MDIO_MODE_CLAUSE_45 (1L<<31)
-#define EMAC_MDIO_MODE_CLOCK_CNT (0x3fL<<16)
+#define EMAC_MDIO_MODE_CLOCK_CNT (0x3ffL<<16)
#define EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT 16
+#define EMAC_MDIO_STATUS_10MB (1L<<1)
#define EMAC_MODE_25G_MODE (1L<<5)
#define EMAC_MODE_HALF_DUPLEX (1L<<1)
#define EMAC_MODE_PORT_GMII (2L<<2)
@@ -5636,6 +5637,7 @@
#define EMAC_REG_EMAC_MAC_MATCH 0x10
#define EMAC_REG_EMAC_MDIO_COMM 0xac
#define EMAC_REG_EMAC_MDIO_MODE 0xb4
+#define EMAC_REG_EMAC_MDIO_STATUS 0xb0
#define EMAC_REG_EMAC_MODE 0x0
#define EMAC_REG_EMAC_RX_MODE 0xc8
#define EMAC_REG_EMAC_RX_MTU_SIZE 0x9c

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