diff options
| author |   Steve Glendinning <steve.glendinning@shawell.net> | 2012-05-04 00:57:13 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-05-07 23:43:57 -0400 |
| commit | 97138a1ca7917c11431293e668457f916a610ca5 (patch) | |
| tree | 569c875e500efe5c172b17e694c208f67a95a682 /drivers/net/usb/smsc75xx.c | |
| parent | smsc75xx: eliminate unnecessary phy register read (diff) | |
| download | linux-dev-97138a1ca7917c11431293e668457f916a610ca5.tar.xz linux-dev-97138a1ca7917c11431293e668457f916a610ca5.zip | |
smsc75xx: let EEPROM determine GPIO/LED settings
This patch allows the GPIO/LED settings to be configured by the
EEPROM if present, and only sets the default values (LED outputs
for link/activity) when an EEPROM is not detected.
Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/smsc75xx.c')
| -rw-r--r-- | drivers/net/usb/smsc75xx.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c index 72b62b51c46f..fb1a087b101d 100644 --- a/drivers/net/usb/smsc75xx.c +++ b/drivers/net/usb/smsc75xx.c @@ -903,15 +903,20 @@ static int smsc75xx_reset(struct usbnet *dev) netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x", buf); - /* Configure GPIO pins as LED outputs */ - ret = smsc75xx_read_reg(dev, LED_GPIO_CFG, &buf); - check_warn_return(ret, "Failed to read LED_GPIO_CFG: %d", ret); + ret = smsc75xx_read_reg(dev, E2P_CMD, &buf); + check_warn_return(ret, "Failed to read E2P_CMD: %d", ret); - buf &= ~(LED_GPIO_CFG_LED2_FUN_SEL | LED_GPIO_CFG_LED10_FUN_SEL); - buf |= LED_GPIO_CFG_LEDGPIO_EN | LED_GPIO_CFG_LED2_FUN_SEL; + /* only set default GPIO/LED settings if no EEPROM is detected */ + if (!(buf & E2P_CMD_LOADED)) { + ret = smsc75xx_read_reg(dev, LED_GPIO_CFG, &buf); + check_warn_return(ret, "Failed to read LED_GPIO_CFG: %d", ret); - ret = smsc75xx_write_reg(dev, LED_GPIO_CFG, buf); - check_warn_return(ret, "Failed to write LED_GPIO_CFG: %d", ret); + buf &= ~(LED_GPIO_CFG_LED2_FUN_SEL | LED_GPIO_CFG_LED10_FUN_SEL); + buf |= LED_GPIO_CFG_LEDGPIO_EN | LED_GPIO_CFG_LED2_FUN_SEL; + + ret = smsc75xx_write_reg(dev, LED_GPIO_CFG, buf); + check_warn_return(ret, "Failed to write LED_GPIO_CFG: %d", ret); + } ret = smsc75xx_write_reg(dev, FLOW, 0); check_warn_return(ret, "Failed to write FLOW: %d", ret); |