ARM: sun7i: dt: 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>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

4 files changed, 47 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index 7bf4935a58a9..4bed1159ceeb 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -13,12 +13,18 @@
 
 /dts-v1/;
 /include/ "sun7i-a20.dtsi"
+/include/ "sunxi-common-regulators.dtsi"
 
 / {
         model = "Cubietech Cubieboard2";
         compatible = "cubietech,cubieboard2", "allwinner,sun7i-a20";
 
         soc@01c00000 {
+                ahci: sata@01c18000 {
+                        target-supply = <&reg_ahci_5v>;
+                        status = "okay";
+                };
+
                 pinctrl@01c20800 {
                         led_pins_cubieboard2: led_pins@0 {
                                 allwinner,pins = "PH20", "PH21";
@@ -74,4 +80,8 @@
                         gpios = <&pio 7 20 0>;
                 };
         };
+
+        reg_ahci_5v: ahci-5v {
+                status = "okay";
+        };
 };
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index 025ce5234692..ef5fed898a1d 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -13,13 +13,26 @@
 
 /dts-v1/;
 /include/ "sun7i-a20.dtsi"
+/include/ "sunxi-common-regulators.dtsi"
 
 / {
         model = "Cubietech Cubietruck";
         compatible = "cubietech,cubietruck", "allwinner,sun7i-a20";
 
         soc@01c00000 {
+                ahci: sata@01c18000 {
+                        target-supply = <&reg_ahci_5v>;
+                        status = "okay";
+                };
+
                 pinctrl@01c20800 {
+                        ahci_pwr_pin_cubietruck: ahci_pwr_pin@1 {
+                                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";
@@ -90,4 +103,10 @@
                         gpios = <&pio 7 7 0>;
                 };
         };
+
+        reg_ahci_5v: ahci-5v {
+                pinctrl-0 = <&ahci_pwr_pin_cubietruck>;
+                gpio = <&pio 7 12 0>;
+                status = "okay";
+        };
 };
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index 9d98316c9928..c9b0f370b03d 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -13,6 +13,7 @@
 
 /dts-v1/;
 /include/ "sun7i-a20.dtsi"
+/include/ "sunxi-common-regulators.dtsi"
 
 / {
         model = "Olimex A20-Olinuxino Micro";
@@ -36,6 +37,11 @@
                         status = "okay";
                 };
 
+                ahci: sata@01c18000 {
+                        target-supply = <&reg_ahci_5v>;
+                        status = "okay";
+                };
+
                 pinctrl@01c20800 {
                         led_pins_olinuxino: led_pins@0 {
                                 allwinner,pins = "PH2";
@@ -105,4 +111,8 @@
                         default-state = "on";
                 };
         };
+
+        reg_ahci_5v: ahci-5v {
+                status = "okay";
+        };
 };
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index fa0e5f8c4483..38916fbffaa8 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -450,6 +450,14 @@
                         #size-cells = <0>;
                 };
 
+                ahci: sata@01c18000 {
+                        compatible = "allwinner,sun4i-a10-ahci";
+                        reg = <0x01c18000 0x1000>;
+                        interrupts = <0 56 4>;
+                        clocks = <&pll6 0>, <&ahb_gates 25>;
+                        status = "disabled";
+                };
+
                 spi3: spi@01c1f000 {
                         compatible = "allwinner,sun4i-a10-spi";
                         reg = <0x01c1f000 0x1000>;