ARM: dts: Add HS400 support for exynos5420 and exynos5800

HS400 timing values are added for SMDK5420, exynos5420-peach-pit
and exynos5800-peach-pi boards. This also adds RCLK GPIO line,
this gpio should be in pull-down state.
This also enables HS400 on peach-pi and this updates the clock
frequency to 800MHz to be set as input clock to controller.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
[alim.akhtar@samsung.com: addressed review comments]
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
index ba686e40eac7..8b153166ebdb 100644
--- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
@@ -201,6 +201,13 @@
                         samsung,pin-drv = <3>;
                 };
 
+                sd0_rclk: sd0-rclk {
+                        samsung,pins = "gpc0-7";
+                        samsung,pin-function = <2>;
+                        samsung,pin-pud = <1>;
+                        samsung,pin-drv = <3>;
+                };
+
                 sd1_cmd: sd1-cmd {
                         samsung,pins = "gpc1-1";
                         samsung,pin-function = <2>;