[PATCH v2 2/3] ARM: dts: exynos4412-odroid*: add eMMC reset line

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This patch adds reset-gpios property to the eMMC slot, so the MMC driver
is able to properly reset eMMC card on system restart and thus fixes
system hang on software reboot.

Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
 arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index ffcf17bbf63b..c97ffbf0a6be 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -57,10 +57,18 @@
 				<19200000>;
 	};
 
+	emmc_pwrseq: pwrseq {
+		pinctrl-0 = <&sd1_cd>;
+		pinctrl-names = "default";
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpk1 2 1>;
+	};
+
 	mmc@12550000 {
 		pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
 		pinctrl-names = "default";
 		vmmc-supply = <&ldo20_reg &buck8_reg>;
+		mmc-pwrseq = <&emmc_pwrseq>;
 		status = "okay";
 
 		num-slots = <1>;
@@ -392,6 +400,12 @@
 	};
 };
 
+/* RSTN signal for eMMC */
+&sd1_cd {
+	samsung,pin-pud = <0>;
+	samsung,pin-drv = <0>;
+};
+
 &pinctrl_1 {
 	gpio_power_key: power_key {
 		samsung,pins = "gpx1-3";
-- 
1.9.2

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