ARM: dts: alt: add SDHI0 and 1 support

Define the Alt board dependent part of the SDHI0 and 1
device nodes along with the necessary voltage regulators.

Based on work by the original patch by Vladimir Barinov and
Sergei Shtylyov for the Silk board.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7794-alt.dts b/arch/arm/boot/dts/r8a7794-alt.dts
index 1ad37d4..fe7c128 100644 (file)
--- a/arch/arm/boot/dts/r8a7794-alt.dts
+++ b/arch/arm/boot/dts/r8a7794-alt.dts
@@ -10,6 +10,7 @@
 
 /dts-v1/;
 #include "r8a7794.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
        model = "Alt";
@@ -29,6 +30,54 @@
                reg = <0 0x40000000 0 0x40000000>;
        };
 
+       vcc_sdhi0: regulator-vcc-sdhi0 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "SDHI0 Vcc";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&gpio2 26 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+       };
+
+       vccq_sdhi0: regulator-vccq-sdhi0 {
+               compatible = "regulator-gpio";
+
+               regulator-name = "SDHI0 VccQ";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
+               gpios-states = <1>;
+               states = <3300000 1
+                         1800000 0>;
+       };
+
+       vcc_sdhi1: regulator-vcc-sdhi1 {
+               compatible = "regulator-fixed";
+
+               regulator-name = "SDHI1 Vcc";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpio = <&gpio4 26 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+       };
+
+       vccq_sdhi1: regulator-vccq-sdhi1 {
+               compatible = "regulator-gpio";
+
+               regulator-name = "SDHI1 VccQ";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+
+               gpios = <&gpio4 29 GPIO_ACTIVE_HIGH>;
+               gpios-states = <1>;
+               states = <3300000 1
+                         1800000 0>;
+       };
+
        lbsc {
                #address-cells = <1>;
                #size-cells = <1>;
@@ -140,6 +189,16 @@
                groups = "vin0_data8", "vin0_clk";
                function = "vin0";
        };
+
+       sdhi0_pins: sd0 {
+               groups = "sdhi0_data4", "sdhi0_ctrl";
+               function = "sdhi0";
+       };
+
+       sdhi1_pins: sd1 {
+               groups = "sdhi1_data4", "sdhi1_ctrl";
+               function = "sdhi1";
+       };
 };
 
 &cmt0 {
@@ -169,6 +228,28 @@
        };
 };
 
+&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_LOW>;
+       status = "okay";
+};
+
+&sdhi1 {
+       pinctrl-0 = <&sdhi1_pins>;
+       pinctrl-names = "default";
+
+       vmmc-supply = <&vcc_sdhi1>;
+       vqmmc-supply = <&vccq_sdhi1>;
+       cd-gpios = <&gpio6 14 GPIO_ACTIVE_LOW>;
+       wp-gpios = <&gpio6 15 GPIO_ACTIVE_LOW>;
+       status = "okay";
+};
+
 &i2c1 {
        pinctrl-0 = <&i2c1_pins>;
        pinctrl-names = "default";