From 225da7e65a03d7b730ccb201f8acb6afde5eb40b Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Thu, 5 Feb 2015 00:35:58 +0900 Subject: [PATCH] ARM: dts: add eMMC reset line for exynos4412-odroid-common 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 Signed-off-by: Kukjin Kim --- 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 de80b5bba204..3c5a7ab23c6b 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -75,10 +75,18 @@ }; }; + 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>; @@ -413,6 +421,12 @@ }; }; +/* 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"; -- 2.20.1