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authorSergei Shtylyov <sergei.shtylyov@cogentembedded.com>2014-05-03 21:04:34 +0400
committerSimon Horman <horms+renesas@verge.net.au>2014-05-11 09:20:17 +0900
commit1299df03d7191ab4356c995dde8b912d3c8922e9 (patch)
treea8a5bb667c7b3b700506728778b6cb6858ee76f1 /arch/arm/boot/dts/r8a7791-henninger.dts
parent2af0d93762e91d4496cc2e63761c70ae9f50f997 (diff)
downloadlinux-linaro-stable-1299df03d7191ab4356c995dde8b912d3c8922e9.tar.gz
ARM: shmobile: henninger: add SDHI0/2 DT support
Define the Henninger board dependent part of the SDHI0/2 device nodes along with the necessary voltage regulators (note that the Vcc regulators are dummy -- they are required but don't actually exist on the board). Also, GPIOs have to be used for the CD and WP signals due to the SDHI driver constraints... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/boot/dts/r8a7791-henninger.dts')
-rw-r--r--arch/arm/boot/dts/r8a7791-henninger.dts76
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7791-henninger.dts b/arch/arm/boot/dts/r8a7791-henninger.dts
index 0a655231d531..2e45c06dd96b 100644
--- a/arch/arm/boot/dts/r8a7791-henninger.dts
+++ b/arch/arm/boot/dts/r8a7791-henninger.dts
@@ -11,6 +11,7 @@
/dts-v1/;
#include "r8a7791.dtsi"
+#include <dt-bindings/gpio/gpio.h>
/ {
model = "Henninger";
@@ -33,6 +34,50 @@
device_type = "memory";
reg = <2 0x00000000 0 0x40000000>;
};
+
+ vcc_sdhi0: regulator@0 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "SDHI0 Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vccq_sdhi0: regulator@1 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI0 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio2 12 GPIO_ACTIVE_HIGH>;
+ gpios-states = <1>;
+ states = <3300000 1
+ 1800000 0>;
+ };
+
+ vcc_sdhi2: regulator@2 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "SDHI2 Vcc";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vccq_sdhi2: regulator@3 {
+ compatible = "regulator-gpio";
+
+ regulator-name = "SDHI2 VccQ";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
+ gpios-states = <1>;
+ states = <3300000 1
+ 1800000 0>;
+ };
};
&extal_clk {
@@ -54,6 +99,16 @@
renesas,groups = "intc_irq0";
renesas,function = "intc";
};
+
+ sdhi0_pins: sd0 {
+ renesas,groups = "sdhi0_data4", "sdhi0_ctrl";
+ renesas,function = "sdhi0";
+ };
+
+ sdhi2_pins: sd2 {
+ renesas,groups = "sdhi2_data4", "sdhi2_ctrl";
+ renesas,function = "sdhi2";
+ };
};
&scif0 {
@@ -82,3 +137,24 @@
&sata0 {
status = "okay";
};
+
+&sdhi0 {
+ pinctrl-0 = <&sdhi0_pins>;
+ pinctrl-names = "default";
+
+ vmmc-supply = <&vcc_sdhi0>;
+ vqmmc-supply = <&vccq_sdhi0>;
+ cd-gpios = <&gpio6 6 GPIO_ACTIVE_LOW>;
+ wp-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+&sdhi2 {
+ pinctrl-0 = <&sdhi2_pins>;
+ pinctrl-names = "default";
+
+ vmmc-supply = <&vcc_sdhi2>;
+ vqmmc-supply = <&vccq_sdhi2>;
+ cd-gpios = <&gpio6 22 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};