[PATCH v5 13/14] ARM: sun4i: dts: Add ahci / sata support
Hans de Goede
hdegoede at redhat.com
Wed Jan 22 14:04:48 EST 2014
From: Oliver Schinagl <oliver at schinagl.nl>
This patch adds sunxi sata support to A10 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 at schinagl.nl>
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
arch/arm/boot/dts/sun4i-a10-a1000.dts | 4 ++++
arch/arm/boot/dts/sun4i-a10-cubieboard.dts | 6 +++++
arch/arm/boot/dts/sun4i-a10.dtsi | 8 +++++++
arch/arm/boot/dts/sunxi-ahci-reg.dtsi | 38 ++++++++++++++++++++++++++++++
4 files changed, 56 insertions(+)
create mode 100644 arch/arm/boot/dts/sunxi-ahci-reg.dtsi
diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts
index aef8207..3fb7305 100644
--- a/arch/arm/boot/dts/sun4i-a10-a1000.dts
+++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts
@@ -48,6 +48,10 @@
status = "okay";
};
+ ahci: sata at 01c18000 {
+ status = "okay";
+ };
+
pinctrl at 01c20800 {
mmc0_cd_pin_a1000: mmc0_cd_pin at 0 {
allwinner,pins = "PH1";
diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index f50fb2b..6ae1110 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -12,6 +12,7 @@
/dts-v1/;
/include/ "sun4i-a10.dtsi"
+/include/ "sunxi-ahci-reg.dtsi"
/ {
model = "Cubietech Cubieboard";
@@ -51,6 +52,11 @@
status = "okay";
};
+ ahci: sata at 01c18000 {
+ target-supply = <®_ahci_5v>;
+ status = "okay";
+ };
+
pinctrl at 01c20800 {
mmc0_cd_pin_cubieboard: mmc0_cd_pin at 0 {
allwinner,pins = "PH1";
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 4736dd2..198dcda 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -331,6 +331,14 @@
status = "disabled";
};
+ ahci: sata at 01c18000 {
+ compatible = "allwinner,sun4i-a10-ahci";
+ reg = <0x01c18000 0x1000>;
+ interrupts = <56>;
+ clocks = <&pll6 0>, <&ahb_gates 25>;
+ status = "disabled";
+ };
+
intc: interrupt-controller at 01c20400 {
compatible = "allwinner,sun4i-ic";
reg = <0x01c20400 0x400>;
diff --git a/arch/arm/boot/dts/sunxi-ahci-reg.dtsi b/arch/arm/boot/dts/sunxi-ahci-reg.dtsi
new file mode 100644
index 0000000..955b197
--- /dev/null
+++ b/arch/arm/boot/dts/sunxi-ahci-reg.dtsi
@@ -0,0 +1,38 @@
+/*
+ * sunxi boards sata target power supply common code
+ *
+ * Copyright 2014 - Hans de Goede <hdegoede at redhat.com>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/ {
+ soc at 01c00000 {
+ ahci_pwr_pin_a: ahci_pwr_pin at 0 {
+ allwinner,pins = "PB8";
+ allwinner,function = "gpio_out";
+ allwinner,drive = <0>;
+ allwinner,pull = <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_a>;
+ gpio = <&pio 1 8 0>;
+ enable-active-high;
+ };
+ };
+};
--
1.8.5.3
More information about the linux-arm-kernel
mailing list