ARM: dts: rockchip: Specify VMMC and VQMMC on rk3288-evb

Specifying these rails should eventually let us do UHS.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 4a45751..41f5f2a 100644 (file)
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -112,6 +112,23 @@
                regulator-always-on;
                regulator-boot-on;
        };
+
+       /*
+        * NOTE: vcc_sd isn't hooked up on v1.0 boards where power comes from
+        * vcc_io directly.  Those boards won't be able to power cycle SD cards
+        * but it shouldn't hurt to toggle this pin there anyway.
+        */
+       vcc_sd: sdmmc-regulator {
+               compatible = "regulator-fixed";
+               gpio = <&gpio7 11 GPIO_ACTIVE_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&sdmmc_pwr>;
+               regulator-name = "vcc_sd";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               startup-delay-us = <100000>;
+               vin-supply = <&vcc_io>;
+       };
 };
 
 &emmc {
@@ -141,6 +158,8 @@
        pinctrl-names = "default";
        pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;
        status = "okay";
+       vmmc-supply = <&vcc_sd>;
+       vqmmc-supply = <&vccio_sd>;
 };
 
 &i2c0 {
@@ -232,6 +251,10 @@
                sdmmc_cmd: sdmmc-cmd {
                        rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
                };
+
+               sdmmc_pwr: sdmmc-pwr {
+                       rockchip,pins = <7 11 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
        };
 
        usb {