kernel: b53: use hard coded switch reset gpio on some boards.

The Linksys wrt310n v1 does not have a robo_reset config variable in
nvram, but GPIO Pin 8 is the pin needed for resetting the external
switch, Linksys hard coded it into their source code.

Thank you Devastator for testing.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 37988

target/linux/generic/files/drivers/net/phy/b53/b53_priv.h

@@ -286,10 +286,18 @@ static inline int b53_write64(struct b53_device *dev, u8 page, u8 reg,
 #ifdef CONFIG_BCM47XX
 
 #include <bcm47xx_nvram.h>
+#include <bcm47xx_board.h>
 static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
 {
+	enum bcm47xx_board board = bcm47xx_board_get();
+
+	switch (board) {
+	case BCM47XX_BOARD_LINKSYS_WRT310NV1:
+		return 8;
+	default:
 		return bcm47xx_nvram_gpio_pin("robo_reset");
 	}
+}
 #else
 static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
 {