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 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html