openwrtv4/target/linux/sunxi/patches-3.13/162-2-dt-sun7i-add-ahci-nodes.patch

From 4ce1f4c3ab04a697e9861b77582077b905b3f8a0 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 3 Jan 2014 10:27:51 +0100
Subject: [PATCH] ARM: sun7i: dts: Add ahci / sata support

This patch adds sunxi sata support to A20 boards that have such a connector.
Some boards also feature a regulator via a GPIO and support for this is also
added.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts     | 27 +++++++++++++++++++++++++
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts      | 27 +++++++++++++++++++++++++
 arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts | 26 ++++++++++++++++++++++++
 arch/arm/boot/dts/sun7i-a20.dtsi                |  9 +++++++++
 4 files changed, 89 insertions(+)

--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -43,7 +43,19 @@
 			status = "okay";
 		};
 
+		sata: ahci@01c18000 {
+			pwr-supply = <&reg_ahci_5v>;
+			status = "okay";
+		};
+
 		pinctrl@01c20800 {
+			ahci_pwr_pin_cubieboard2: ahci_pwr_pin@0 {
+				allwinner,pins = "PB8";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
 			mmc0_cd_pin_cubieboard2: mmc0_cd_pin@0 {
 				allwinner,pins = "PH1";
 				allwinner,function = "gpio_in";
@@ -93,4 +105,19 @@
 			gpios = <&pio 7 20 0>;
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		pinctrl-names = "default";
+
+		reg_ahci_5v: ahci-5v {
+			compatible = "regulator-fixed";
+			regulator-name = "ahci-5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			pinctrl-0 = <&ahci_pwr_pin_cubieboard2>;
+			gpio = <&pio 1 8 0>;
+			enable-active-high;
+		};
+	};
 };
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -43,6 +43,11 @@
 			status = "okay";
 		};
 
+		sata: ahci@01c18000 {
+			pwr-supply = <&reg_ahci_5v>;
+			status = "okay";
+		};
+
 		pinctrl@01c20800 {
 			mmc0_cd_pin_cubietruck: mmc0_cd_pin@0 {
 				allwinner,pins = "PH1";
@@ -58,6 +63,13 @@
 				allwinner,pull = <0>;
 			};
 
+			ahci_pwr_pin_cubietruck: ahci_pwr_pin@0 {
+				allwinner,pins = "PH12";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
 			led_pins_cubietruck: led_pins@0 {
 				allwinner,pins = "PH7", "PH11", "PH20", "PH21";
 				allwinner,function = "gpio_out";
@@ -149,4 +161,19 @@
 			gpio = <&pio 7 3 0>;
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+		pinctrl-names = "default";
+
+		reg_ahci_5v: ahci-5v {
+			compatible = "regulator-fixed";
+			regulator-name = "ahci-5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			pinctrl-0 = <&ahci_pwr_pin_cubietruck>;
+			gpio = <&pio 7 12 0>;
+			enable-active-high;
+		};
+	};
 };
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -52,7 +52,19 @@
 			status = "okay";
 		};
 
+		sata: ahci@01c18000 {
+			pwr-supply = <&reg_ahci_5v>;
+			status = "okay";
+		};
+
 		pinctrl@01c20800 {
+			ahci_pwr_pin_olinuxinom: ahci_pwr_pin@0 {
+				allwinner,pins = "PB8";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
 			mmc0_cd_pin_olinuxinom: mmc0_cd_pin@0 {
 				allwinner,pins = "PH1";
 				allwinner,function = "gpio_in";
@@ -123,4 +135,18 @@
 			default-state = "on";
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_ahci_5v: ahci-5v {
+			compatible = "regulator-fixed";
+			regulator-name = "ahci-5v";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			pinctrl-0 = <&ahci_pwr_pin_olinuxinom>;
+			gpio = <&pio 1 8 0>;
+			enable-active-high;
+		};
+	};
 };
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -433,6 +433,15 @@
 			};
 		};
 
+		sata: ahci@01c18000 {
+			compatible = "allwinner,sun4i-a10-ahci";
+			reg = <0x01c18000 0x1000>;
+			interrupts = <0 56 1>;
+			clocks = <&ahb_gates 25>, <&pll6 0>;
+			clock-names = "ahb_sata", "pll6_sata";
+			status = "disabled";
+		};
+
 		timer@01c20c00 {
 			compatible = "allwinner,sun4i-timer";
 			reg = <0x01c20c00 0x90>;