Add Read Strobe RDQS pin configuration for eMMC to support higher data rate
read/write.
Signed-off-by: Anand Moon <linux.am...@gmail.com>
---
arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 6 ++++++
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 2 +-
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
index b82af7c89654..4fb3865e082a 100644
--- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
@@ -206,6 +206,12 @@
samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
};
+ sd0_rdqs: sd0-rdqs {
+ samsung,pins = "gpc0-7";
+ samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+ samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
+ };
+
sd1_clk: sd1-clk {
samsung,pins = "gpc1-0";
samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index b299e541cac0..d41397748ed2 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -411,7 +411,7 @@
samsung,dw-mshc-hs400-timing = <0 2>;
samsung,read-strobe-delay = <90>;
pinctrl-names = "default";
- pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_cd
&sd0_rclk>;
+ pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_rdqs &sd0_bus1 &sd0_bus4 &sd0_bus8
&sd0_cd &sd0_rclk>;
bus-width = <8>;
cap-mmc-highspeed;
mmc-hs200-1_8v;
--
2.20.1
