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authorDavid Daney <david.daney@cavium.com>2012-07-05 18:12:40 +0200
committerRalf Baechle <ralf@linux-mips.org>2012-07-23 13:54:53 +0100
commitdf9244c5365c12d0cd1452323d3dc3ef91d80173 (patch)
tree8dafc6533b6fbcf334e556e771c112c7751dd46c /drivers/staging/octeon/ethernet.c
parent368bec0d4a84f78f8c2be8441916d905a8da73c2 (diff)
staging: octeon_ethernet: Convert to use device tree.
Get MAC address and PHY connection from the device tree. The driver is converted to a platform driver. Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: linux-mips@linux-mips.org Cc: devicetree-discuss@lists.ozlabs.org Cc: Rob Herring <rob.herring@calxeda.com> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/3940/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'drivers/staging/octeon/ethernet.c')
-rw-r--r--drivers/staging/octeon/ethernet.c153
1 files changed, 99 insertions, 54 deletions
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 18f7a790f73d..683bedc74dde 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -24,6 +24,7 @@
* This file may also be available under a different license from Cavium.
* Contact Cavium Networks for more information
**********************************************************************/
+#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
@@ -32,6 +33,7 @@
#include <linux/phy.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/of_net.h>
#include <net/dst.h>
@@ -113,15 +115,6 @@ int rx_napi_weight = 32;
module_param(rx_napi_weight, int, 0444);
MODULE_PARM_DESC(rx_napi_weight, "The NAPI WEIGHT parameter.");
-/*
- * The offset from mac_addr_base that should be used for the next port
- * that is configured. By convention, if any mgmt ports exist on the
- * chip, they get the first mac addresses, The ports controlled by
- * this driver are numbered sequencially following any mgmt addresses
- * that may exist.
- */
-static unsigned int cvm_oct_mac_addr_offset;
-
/**
* cvm_oct_poll_queue - Workqueue for polling operations.
*/
@@ -176,7 +169,7 @@ static void cvm_oct_periodic_worker(struct work_struct *work)
queue_delayed_work(cvm_oct_poll_queue, &priv->port_periodic_work, HZ);
}
-static __init void cvm_oct_configure_common_hw(void)
+static __devinit void cvm_oct_configure_common_hw(void)
{
/* Setup the FPA */
cvmx_fpa_enable();
@@ -396,23 +389,21 @@ static void cvm_oct_common_set_multicast_list(struct net_device *dev)
* Returns Zero on success
*/
-static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
+static int cvm_oct_set_mac_filter(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
union cvmx_gmxx_prtx_cfg gmx_cfg;
int interface = INTERFACE(priv->port);
int index = INDEX(priv->port);
- memcpy(dev->dev_addr, addr + 2, 6);
-
if ((interface < 2)
&& (cvmx_helper_interface_get_mode(interface) !=
CVMX_HELPER_INTERFACE_MODE_SPI)) {
int i;
- uint8_t *ptr = addr;
+ uint8_t *ptr = dev->dev_addr;
uint64_t mac = 0;
for (i = 0; i < 6; i++)
- mac = (mac << 8) | (uint64_t) (ptr[i + 2]);
+ mac = (mac << 8) | (uint64_t)ptr[i];
gmx_cfg.u64 =
cvmx_read_csr(CVMX_GMXX_PRTX_CFG(index, interface));
@@ -421,17 +412,17 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
cvmx_write_csr(CVMX_GMXX_SMACX(index, interface), mac);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM0(index, interface),
- ptr[2]);
+ ptr[0]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM1(index, interface),
- ptr[3]);
+ ptr[1]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM2(index, interface),
- ptr[4]);
+ ptr[2]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM3(index, interface),
- ptr[5]);
+ ptr[3]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM4(index, interface),
- ptr[6]);
+ ptr[4]);
cvmx_write_csr(CVMX_GMXX_RXX_ADR_CAM5(index, interface),
- ptr[7]);
+ ptr[5]);
cvm_oct_common_set_multicast_list(dev);
cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface),
gmx_cfg.u64);
@@ -439,6 +430,15 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
return 0;
}
+static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
+{
+ int r = eth_mac_addr(dev, addr);
+
+ if (r)
+ return r;
+ return cvm_oct_set_mac_filter(dev);
+}
+
/**
* cvm_oct_common_init - per network device initialization
* @dev: Device to initialize
@@ -448,26 +448,17 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr)
int cvm_oct_common_init(struct net_device *dev)
{
struct octeon_ethernet *priv = netdev_priv(dev);
- struct sockaddr sa;
- u64 mac = ((u64)(octeon_bootinfo->mac_addr_base[0] & 0xff) << 40) |
- ((u64)(octeon_bootinfo->mac_addr_base[1] & 0xff) << 32) |
- ((u64)(octeon_bootinfo->mac_addr_base[2] & 0xff) << 24) |
- ((u64)(octeon_bootinfo->mac_addr_base[3] & 0xff) << 16) |
- ((u64)(octeon_bootinfo->mac_addr_base[4] & 0xff) << 8) |
- (u64)(octeon_bootinfo->mac_addr_base[5] & 0xff);
-
- mac += cvm_oct_mac_addr_offset;
- sa.sa_data[0] = (mac >> 40) & 0xff;
- sa.sa_data[1] = (mac >> 32) & 0xff;
- sa.sa_data[2] = (mac >> 24) & 0xff;
- sa.sa_data[3] = (mac >> 16) & 0xff;
- sa.sa_data[4] = (mac >> 8) & 0xff;
- sa.sa_data[5] = mac & 0xff;
-
- if (cvm_oct_mac_addr_offset >= octeon_bootinfo->mac_addr_count)
- printk(KERN_DEBUG "%s: Using MAC outside of the assigned range:"
- " %pM\n", dev->name, sa.sa_data);
- cvm_oct_mac_addr_offset++;
+ const u8 *mac = NULL;
+
+ if (priv->of_node)
+ mac = of_get_mac_address(priv->of_node);
+
+ if (mac && is_valid_ether_addr(mac)) {
+ memcpy(dev->dev_addr, mac, ETH_ALEN);
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
+ } else {
+ eth_hw_addr_random(dev);
+ }
/*
* Force the interface to use the POW send if always_use_pow
@@ -488,7 +479,7 @@ int cvm_oct_common_init(struct net_device *dev)
SET_ETHTOOL_OPS(dev, &cvm_oct_ethtool_ops);
cvm_oct_phy_setup_device(dev);
- dev->netdev_ops->ndo_set_mac_address(dev, &sa);
+ cvm_oct_set_mac_filter(dev);
dev->netdev_ops->ndo_change_mtu(dev, dev->mtu);
/*
@@ -595,22 +586,55 @@ static const struct net_device_ops cvm_oct_pow_netdev_ops = {
extern void octeon_mdiobus_force_mod_depencency(void);
-static int __init cvm_oct_init_module(void)
+static struct device_node * __devinit cvm_oct_of_get_child(const struct device_node *parent,
+ int reg_val)
+{
+ struct device_node *node = NULL;
+ int size;
+ const __be32 *addr;
+
+ for (;;) {
+ node = of_get_next_child(parent, node);
+ if (!node)
+ break;
+ addr = of_get_property(node, "reg", &size);
+ if (addr && (be32_to_cpu(*addr) == reg_val))
+ break;
+ }
+ return node;
+}
+
+static struct device_node * __devinit cvm_oct_node_for_port(struct device_node *pip,
+ int interface, int port)
+{
+ struct device_node *ni, *np;
+
+ ni = cvm_oct_of_get_child(pip, interface);
+ if (!ni)
+ return NULL;
+
+ np = cvm_oct_of_get_child(ni, port);
+ of_node_put(ni);
+
+ return np;
+}
+
+static int __devinit cvm_oct_probe(struct platform_device *pdev)
{
int num_interfaces;
int interface;
int fau = FAU_NUM_PACKET_BUFFERS_TO_FREE;
int qos;
+ struct device_node *pip;
octeon_mdiobus_force_mod_depencency();
pr_notice("cavium-ethernet %s\n", OCTEON_ETHERNET_VERSION);
- if (OCTEON_IS_MODEL(OCTEON_CN52XX))
- cvm_oct_mac_addr_offset = 2; /* First two are the mgmt ports. */
- else if (OCTEON_IS_MODEL(OCTEON_CN56XX))
- cvm_oct_mac_addr_offset = 1; /* First one is the mgmt port. */
- else
- cvm_oct_mac_addr_offset = 0;
+ pip = pdev->dev.of_node;
+ if (!pip) {
+ pr_err("Error: No 'pip' in /aliases\n");
+ return -EINVAL;
+ }
cvm_oct_poll_queue = create_singlethread_workqueue("octeon-ethernet");
if (cvm_oct_poll_queue == NULL) {
@@ -689,10 +713,11 @@ static int __init cvm_oct_init_module(void)
cvmx_helper_interface_get_mode(interface);
int num_ports = cvmx_helper_ports_on_interface(interface);
int port;
+ int port_index;
- for (port = cvmx_helper_get_ipd_port(interface, 0);
+ for (port_index = 0, port = cvmx_helper_get_ipd_port(interface, 0);
port < cvmx_helper_get_ipd_port(interface, num_ports);
- port++) {
+ port_index++, port++) {
struct octeon_ethernet *priv;
struct net_device *dev =
alloc_etherdev(sizeof(struct octeon_ethernet));
@@ -703,6 +728,7 @@ static int __init cvm_oct_init_module(void)
/* Initialize the device private structure. */
priv = netdev_priv(dev);
+ priv->of_node = cvm_oct_node_for_port(pip, interface, port_index);
INIT_DELAYED_WORK(&priv->port_periodic_work,
cvm_oct_periodic_worker);
@@ -787,7 +813,7 @@ static int __init cvm_oct_init_module(void)
return 0;
}
-static void __exit cvm_oct_cleanup_module(void)
+static int __devexit cvm_oct_remove(struct platform_device *pdev)
{
int port;
@@ -835,10 +861,29 @@ static void __exit cvm_oct_cleanup_module(void)
if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL,
CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128);
+ return 0;
}
+static struct of_device_id cvm_oct_match[] = {
+ {
+ .compatible = "cavium,octeon-3860-pip",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, cvm_oct_match);
+
+static struct platform_driver cvm_oct_driver = {
+ .probe = cvm_oct_probe,
+ .remove = __devexit_p(cvm_oct_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = KBUILD_MODNAME,
+ .of_match_table = cvm_oct_match,
+ },
+};
+
+module_platform_driver(cvm_oct_driver);
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Cavium Networks <support@caviumnetworks.com>");
MODULE_DESCRIPTION("Cavium Networks Octeon ethernet driver.");
-module_init(cvm_oct_init_module);
-module_exit(cvm_oct_cleanup_module);

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