diff options
| -rw-r--r-- | drivers/net/tc35815.c | 50 |
1 files changed, 45 insertions, 5 deletions
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c index 463d600ed83d..75655add3f34 100644 --- a/drivers/net/tc35815.c +++ b/drivers/net/tc35815.c @@ -23,9 +23,9 @@ */ #ifdef TC35815_NAPI -#define DRV_VERSION "1.35-NAPI" +#define DRV_VERSION "1.36-NAPI" #else -#define DRV_VERSION "1.35" +#define DRV_VERSION "1.36" #endif static const char *version = "tc35815.c:v" DRV_VERSION "\n"; #define MODNAME "tc35815" @@ -49,6 +49,7 @@ static const char *version = "tc35815.c:v" DRV_VERSION "\n"; #include <linux/pci.h> #include <linux/mii.h> #include <linux/ethtool.h> +#include <linux/platform_device.h> #include <asm/io.h> #include <asm/byteorder.h> @@ -597,13 +598,46 @@ static int tc_mdio_read(struct net_device *dev, int phy_id, int location); static void tc_mdio_write(struct net_device *dev, int phy_id, int location, int val); -static void __devinit tc35815_init_dev_addr (struct net_device *dev) +#ifdef CONFIG_CPU_TX49XX +/* + * Find a platform_device providing a MAC address. The platform code + * should provide a "tc35815-mac" device with a MAC address in its + * platform_data. + */ +static int __devinit tc35815_mac_match(struct device *dev, void *data) +{ + struct platform_device *plat_dev = to_platform_device(dev); + struct pci_dev *pci_dev = data; + unsigned int id = (pci_dev->bus->number << 8) | pci_dev->devfn; + return !strcmp(plat_dev->name, "tc35815-mac") && plat_dev->id == id; +} + +static int __devinit tc35815_read_plat_dev_addr(struct net_device *dev) +{ + struct tc35815_local *lp = dev->priv; + struct device *pd = bus_find_device(&platform_bus_type, NULL, + lp->pci_dev, tc35815_mac_match); + if (pd) { + if (pd->platform_data) + memcpy(dev->dev_addr, pd->platform_data, ETH_ALEN); + put_device(pd); + return is_valid_ether_addr(dev->dev_addr) ? 0 : -ENODEV; + } + return -ENODEV; +} +#else +static int __devinit tc35815_read_plat_dev_addr(struct device *dev) +{ + return -ENODEV; +} +#endif + +static int __devinit tc35815_init_dev_addr (struct net_device *dev) { struct tc35815_regs __iomem *tr = (struct tc35815_regs __iomem *)dev->base_addr; int i; - /* dev_addr will be overwritten on NETDEV_REGISTER event */ while (tc_readl(&tr->PROM_Ctl) & PROM_Busy) ; for (i = 0; i < 6; i += 2) { @@ -615,6 +649,9 @@ static void __devinit tc35815_init_dev_addr (struct net_device *dev) dev->dev_addr[i] = data & 0xff; dev->dev_addr[i+1] = data >> 8; } + if (!is_valid_ether_addr(dev->dev_addr)) + return tc35815_read_plat_dev_addr(dev); + return 0; } static int __devinit tc35815_init_one (struct pci_dev *pdev, @@ -724,7 +761,10 @@ static int __devinit tc35815_init_one (struct pci_dev *pdev, tc35815_chip_reset(dev); /* Retrieve the ethernet address. */ - tc35815_init_dev_addr(dev); + if (tc35815_init_dev_addr(dev)) { + dev_warn(&pdev->dev, "not valid ether addr\n"); + random_ether_addr(dev->dev_addr); + } rc = register_netdev (dev); if (rc) |