diff options
Diffstat (limited to 'drivers/net/ethernet/smsc/smsc911x.c')
| -rw-r--r-- | drivers/net/ethernet/smsc/smsc911x.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c index 174dc8908b72..3ebd0664c697 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -43,8 +43,6 @@ #include <linux/smsc911x.h> #include <linux/device.h> #include <linux/of.h> -#include <linux/of_device.h> -#include <linux/of_gpio.h> #include <linux/of_net.h> #include <linux/acpi.h> #include <linux/pm_runtime.h> @@ -57,6 +55,7 @@ #define SMSC_MDIONAME "smsc911x-mdio" #define SMSC_DRV_VERSION "2008-10-21" +MODULE_DESCRIPTION("SMSC LAN911x/LAN921x Ethernet driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(SMSC_DRV_VERSION); MODULE_ALIAS("platform:smsc911x"); @@ -552,7 +551,7 @@ static void smsc911x_mac_write(struct smsc911x_data *pdata, /* Get a phy register */ static int smsc911x_mii_read(struct mii_bus *bus, int phyaddr, int regidx) { - struct smsc911x_data *pdata = (struct smsc911x_data *)bus->priv; + struct smsc911x_data *pdata = bus->priv; unsigned long flags; unsigned int addr; int i, reg; @@ -591,7 +590,7 @@ out: static int smsc911x_mii_write(struct mii_bus *bus, int phyaddr, int regidx, u16 val) { - struct smsc911x_data *pdata = (struct smsc911x_data *)bus->priv; + struct smsc911x_data *pdata = bus->priv; unsigned long flags; unsigned int addr; int i, reg; @@ -2163,10 +2162,20 @@ static const struct net_device_ops smsc911x_netdev_ops = { static void smsc911x_read_mac_address(struct net_device *dev) { struct smsc911x_data *pdata = netdev_priv(dev); - u32 mac_high16 = smsc911x_mac_read(pdata, ADDRH); - u32 mac_low32 = smsc911x_mac_read(pdata, ADDRL); + u32 mac_high16, mac_low32; u8 addr[ETH_ALEN]; + mac_high16 = smsc911x_mac_read(pdata, ADDRH); + mac_low32 = smsc911x_mac_read(pdata, ADDRL); + + /* The first mac_read in some setups can incorrectly read 0. Re-read it + * to get the full MAC if this is observed. + */ + if (mac_high16 == 0) { + SMSC_TRACE(pdata, probe, "Re-read MAC ADDRH\n"); + mac_high16 = smsc911x_mac_read(pdata, ADDRH); + } + addr[0] = (u8)(mac_low32); addr[1] = (u8)(mac_low32 >> 8); addr[2] = (u8)(mac_low32 >> 16); @@ -2315,7 +2324,7 @@ static int smsc911x_init(struct net_device *dev) return 0; } -static int smsc911x_drv_remove(struct platform_device *pdev) +static void smsc911x_drv_remove(struct platform_device *pdev) { struct net_device *dev; struct smsc911x_data *pdata; @@ -2349,11 +2358,9 @@ static int smsc911x_drv_remove(struct platform_device *pdev) free_netdev(dev); pm_runtime_disable(&pdev->dev); - - return 0; } -/* standard register acces */ +/* standard register access */ static const struct smsc911x_ops standard_smsc911x_ops = { .reg_read = __smsc911x_reg_read, .reg_write = __smsc911x_reg_write, |