ARM: dts: Add support for dra72-evm rev C (SR2.0)

DRA72-EVM now has an upgrade to Rev C with SR2.0 silicon. As part of
this change, a few updates were factored in that were software
incompatible with previous board in few areas:
- We now use DP83867 ethernet phy instead of older DP838865 which fails
  in certain use cases.
- Two Ethernet ports now instead of the single one in rev B.
- polarities changed for certain pcf gpios
- Due to SoC phy current requirements, VDDA supplies are split between
 ldo3 and ldo2 (ldo2 was previously unused). NOTE: DSS (VDDA_VIDEO) is
 still supplied by ldo5, HDMI is now supplied by LDO2 instead of using
 LDO3.

NOTE: It does not make much sense to spin off a new board compatible
flag since there is no real benefit for the same.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/Makefile

@@ -530,7 +530,8 @@ dtb-$(CONFIG_SOC_DRA7XX) += \
 	am57xx-sbc-am57x.dtb \
 	am572x-idk.dtb \
 	dra7-evm.dtb \
-	dra72-evm.dtb
+	dra72-evm.dtb \
+	dra72-evm-revc.dtb
 dtb-$(CONFIG_ARCH_ORION5X) += \
 	orion5x-lacie-d2-network.dtb \
 	orion5x-lacie-ethernet-disk-mini-v2.dtb \

arch/arm/boot/dts/dra72-evm-revc.dts

+/*
+ * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include "dra72-evm-common.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
+
+/ {
+	model = "TI DRA722 Rev C EVM";
+
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x80000000>; /* 2GB */
+	};
+};
+
+&tps65917_regulators {
+	ldo2_reg: ldo2 {
+		/* LDO2_OUT --> VDDA_1V8_PHY2 */
+		regulator-name = "ldo2";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+};
+
+&hdmi {
+	vdda-supply = <&ldo2_reg>;
+};
+
+&pcf_gpio_21 {
+	interrupt-parent = <&gpio3>;
+	interrupts = <30 IRQ_TYPE_EDGE_FALLING>;
+};
+
+&mac {
+	mode-gpios = <&pcf_gpio_21 4 GPIO_ACTIVE_LOW>,
+		     <&pcf_hdmi 9 GPIO_ACTIVE_LOW>,	/* P11 */
+		     <&pcf_hdmi 10 GPIO_ACTIVE_LOW>;	/* P12 */
+	dual_emac;
+};
+
+&cpsw_emac0 {
+	phy_id = <&davinci_mdio>, <2>;
+	phy-mode = "rgmii-id";
+	dual_emac_res_vlan = <1>;
+};
+
+&cpsw_emac1 {
+	phy_id = <&davinci_mdio>, <3>;
+	phy-mode = "rgmii-id";
+	dual_emac_res_vlan = <2>;
+};
+
+&davinci_mdio {
+	dp83867_0: ethernet-phy@2 {
+		reg = <2>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+		ti,tx-internal-delay = <DP83867_RGMIIDCTL_1_NS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
+	};
+
+	dp83867_1: ethernet-phy@3 {
+		reg = <3>;
+		ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
+		ti,tx-internal-delay = <DP83867_RGMIIDCTL_1_NS>;
+		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_8_B_NIB>;
+	};
+};