powerpc/corenet: Enable muxing MDIO buses via GPIO

Signed-off-by: Andy Fleming <afleming@gmail.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Shruti Kanetkar <Kanetkar.Shruti@gmail.com>
Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

arch/powerpc/configs/corenet32_smp_defconfig

@@ -99,6 +99,7 @@ CONFIG_E1000E=y
 CONFIG_AT803X_PHY=y
 CONFIG_VITESSE_PHY=y
 CONFIG_FIXED_PHY=y
+CONFIG_MDIO_BUS_MUX_GPIO=y
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set

arch/powerpc/configs/corenet64_smp_defconfig

@@ -93,6 +93,7 @@ CONFIG_FSL_XGMAC_MDIO=y
 CONFIG_E1000E=y
 CONFIG_VITESSE_PHY=y
 CONFIG_FIXED_PHY=y
+CONFIG_MDIO_BUS_MUX_GPIO=y
 CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set

arch/powerpc/platforms/85xx/corenet_generic.c

@@ -87,6 +87,9 @@ static const struct of_device_id of_device_ids[] = {
 	{
 		.compatible	= "simple-bus"
 	},
+	{
+		.compatible	= "mdio-mux-gpio"
+	},
 	{
 		.compatible	= "fsl,srio",
 	},