ARM: dts: am335x-sl50: use phy-phandle declarations

phy-phandle is now a preferred method to reference a PHY device. The new
method also allows you to specify a reset gpio which is required for
this board.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am335x-sl50.dts

@@ -256,6 +256,8 @@ davinci_mdio_default: davinci_mdio_default {
 			/* MDIO */
 			AM33XX_IOPAD(0x948, PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
 			AM33XX_IOPAD(0x94c, PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+			/* Ethernet */
+			AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE7)	/* Ethernet_nRST - gpmc_ad14.gpio1_14 */
 		>;
 	};
 
@@ -327,7 +329,6 @@ AM33XX_IOPAD(0x9a4, PIN_OUTPUT | MUX_MODE7)	/* SoundPA_en - mcasp0_fsr.gpio3_19
 			AM33XX_IOPAD(0x828, PIN_OUTPUT | MUX_MODE7)	/* nKbdOnC - gpmc_ad10.gpio0_26 */
 			AM33XX_IOPAD(0x830, PIN_INPUT_PULLUP | MUX_MODE7)	/* nKbdInt - gpmc_ad12.gpio1_12 */
 			AM33XX_IOPAD(0x834, PIN_INPUT_PULLUP | MUX_MODE7)	/* nKbdReset - gpmc_ad13.gpio1_13 */
-			AM33XX_IOPAD(0x838, PIN_INPUT_PULLUP | MUX_MODE7)	/* nDispReset - gpmc_ad14.gpio1_14 */
 			AM33XX_IOPAD(0x844, PIN_INPUT_PULLUP | MUX_MODE7)	/* USB1_enPower - gpmc_a1.gpio1_17 */
 			/* PDI Bus - Battery system */
 			AM33XX_IOPAD(0x840, PIN_INPUT_PULLUP | MUX_MODE7)	/* nBattReset  gpmc_a0.gpio1_16 */
@@ -556,13 +557,8 @@ ldo4_reg: regulator@6 {
 };
 
 &cpsw_emac0 {
-	phy_id = <&davinci_mdio>, <0>;
-	phy-mode = "mii";
-};
-
-&cpsw_emac1 {
-	phy_id = <&davinci_mdio>, <1>;
 	phy-mode = "mii";
+	phy-handle = <&ethphy0>;
 };
 
 &mac {
@@ -577,6 +573,12 @@ &davinci_mdio {
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&davinci_mdio_default>;
 	pinctrl-1 = <&davinci_mdio_sleep>;
+	reset-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+	reset-delay-us = <100>;   /* PHY datasheet states 100us min */
+
+	ethphy0: ethernet-phy@0 {
+		reg = <0>;
+	};
 };
 
 &sham {