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authorDoug Anderson <dianders@chromium.org>2015-03-12 01:15:17 +0300
committerHeiko Stuebner <heiko@sntech.de>2015-04-27 10:27:41 +0300
commite565abe10b851bd1c90f8a39e2e4695f337f3cb0 (patch)
tree7705292fd5eb850c746bfee2f6a9f3d125ad4f55 /arch/arm/boot/dts/rk3288-evb.dtsi
parentf18407800e5d211028858f86f1e78aacbedad298 (diff)
downloadlinux-e565abe10b851bd1c90f8a39e2e4695f337f3cb0.tar.xz
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>
Diffstat (limited to 'arch/arm/boot/dts/rk3288-evb.dtsi')
-rw-r--r--arch/arm/boot/dts/rk3288-evb.dtsi23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 4a457518d861..41f5f2a02387 100644
--- 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 {