ARM: dts: omap3-igep0020: Add SMSC911x LAN chip support

The IGEPv2 board has an SMSC LAN9221i ethernet chip connected to
the OMAP3 processor though the General-Purpose Memory Controller.

This patch adds a device node for the ethernet chip as a GPMC child
and all its dependencies (regulators, GPIO and pin muxs).
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

arch/arm/boot/dts/omap3-igep.dtsi

@@ -62,6 +62,12 @@ mmc1_pins: pinmux_mmc1_pins {
 			0x126 0x0100	/* sdmmc1_dat7.sdmmc1_dat7 INPUT | MODE 0 */
 		>;
 	};
+
+	smsc911x_pins: pinmux_smsc911x_pins {
+		pinctrl-single,pins = <
+                        0x1a2 0x0104    /* mcspi1_cs2.gpio_176 INPUT | MODE4 */
+		>;
+	};
 };
 
 &i2c1 {

arch/arm/boot/dts/omap3-igep0020.dts

@@ -40,6 +40,18 @@ user2 {
 			gpios = <&twl_gpio 19 1>;
 		};
 	};
+
+	vddvario: regulator-vddvario {
+		  compatible = "regulator-fixed";
+		  regulator-name = "vddvario";
+		  regulator-always-on;
+	};
+
+	vdd33a: regulator-vdd33a {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd33a";
+		regulator-always-on;
+	};
 };
 
 &i2c3 {
@@ -54,3 +66,44 @@ eeprom@50 {
 		reg = <0x50>;
 	};
 };
+
+&gpmc {
+	ranges = <5 0 0x2c000000 0x1000000>;
+	ethernet@5,0 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&smsc911x_pins>;
+		compatible = "smsc,lan9221", "smsc,lan9115";
+		reg = <5 0 0xff>;
+		bank-width = <2>;
+
+		gpmc,mux-add-data;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <186>;
+		gpmc,cs-wr-off-ns = <186>;
+		gpmc,adv-on-ns = <12>;
+		gpmc,adv-rd-off-ns = <48>;
+		gpmc,adv-wr-off-ns = <48>;
+		gpmc,oe-on-ns = <54>;
+		gpmc,oe-off-ns = <168>;
+		gpmc,we-on-ns = <54>;
+		gpmc,we-off-ns = <168>;
+		gpmc,rd-cycle-ns = <186>;
+		gpmc,wr-cycle-ns = <186>;
+		gpmc,access-ns = <114>;
+		gpmc,page-burst-access-ns = <6>;
+		gpmc,bus-turnaround-ns = <12>;
+		gpmc,cycle2cycle-delay-ns = <18>;
+		gpmc,wr-data-mux-bus-ns = <90>;
+		gpmc,wr-access-ns = <186>;
+		gpmc,cycle2cycle-samecsen;
+		gpmc,cycle2cycle-diffcsen;
+
+		interrupt-parent = <&gpio6>;
+		interrupts = <16 8>;
+		vmmc-supply = <&vddvario>;
+		vmmc_aux-supply = <&vdd33a>;
+		reg-io-width = <4>;
+
+		smsc,save-mac-address;
+	};
+};