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smsc95xx: configure LED outputs

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SMSC LAN9500 has dual purpose GPIO/LED pins, and by default at power-on
these are configured as GPIOs.  This means that if LEDs are fitted they
won't ever light.

This patch sets them to be LED outputs for speed, duplex and
link/activity.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steve Glendinning 2009-05-01 05:46:51 +00:00 committed by David S. Miller
parent 2382b15bcc
commit f293501c61
2 changed files with 13 additions and 0 deletions
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10
drivers/net/usb/smsc95xx.c
View file

@ -941,6 +941,16 @@ static int smsc95xx_reset(struct usbnet *dev)
if (netif_msg_ifup(dev))
devdbg(dev, "ID_REV = 0x%08x", read_buf);
/* Configure GPIO pins as LED outputs */
write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
LED_GPIO_CFG_FDX_LED;
ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf);
if (ret < 0) {
devwarn(dev, "Failed to write LED_GPIO_CFG register, ret=%d",
ret);
return ret;
}
/* Init Tx */
write_buf = 0;
ret = smsc95xx_write_reg(dev, FLOW, write_buf);

3
drivers/net/usb/smsc95xx.h
View file

@ -99,6 +99,9 @@
#define PM_CTL_WUPS_MULTI_ (0x00000003)
#define LED_GPIO_CFG (0x24)
#define LED_GPIO_CFG_SPD_LED (0x01000000)
#define LED_GPIO_CFG_LNK_LED (0x00100000)
#define LED_GPIO_CFG_FDX_LED (0x00010000)
#define GPIO_CFG (0x28)