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Commit f293501c authored by Steve Glendinning's avatar Steve Glendinning Committed by David S. Miller
Browse files

smsc95xx: configure LED outputs 



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: default avatarSteve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2382b15b

drivers/net/usb/smsc95xx.c

+10 −0
Original line number Original line Diff line number Diff line
@@ -941,6 +941,16 @@ static int smsc95xx_reset(struct usbnet *dev) 
	if (netif_msg_ifup(dev))

	if (netif_msg_ifup(dev))

		devdbg(dev, "ID_REV = 0x%08x", read_buf);

		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 */

	/* Init Tx */

	write_buf = 0;

	write_buf = 0;

	ret = smsc95xx_write_reg(dev, FLOW, write_buf);

	ret = smsc95xx_write_reg(dev, FLOW, write_buf);

drivers/net/usb/smsc95xx.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -99,6 +99,9 @@ 
#define PM_CTL_WUPS_MULTI_		(0x00000003)

#define PM_CTL_WUPS_MULTI_		(0x00000003)





#define LED_GPIO_CFG			(0x24)

#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)

#define GPIO_CFG			(0x28)