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>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
[Alim: addressed review comments]

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index c47bb70665c1652c6b907e8d3d05cea077781079..072824d5bf1d4f0441281ec0c459e77bfa4acab9 100644 (file)
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -659,8 +659,10 @@
        samsung,dw-mshc-ciu-div = <3>;
        samsung,dw-mshc-sdr-timing = <0 4>;
        samsung,dw-mshc-ddr-timing = <0 2>;
+       samsung,dw-mshc-hs400-timing = <0 2>;
+       samsung,read-strobe-delay = <90>;
        pinctrl-names = "default";
-       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
+       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8 &sd0_rclk>;
        bus-width = <8>;
 };
 

diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
index ba686e40eac7965942555a1f5eca9a81bb57ef39..8b153166ebdb430e6c827ab1a80d5bd9da316e47 100644 (file)
--- 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>;

diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 8be3d7b489ff3585dad03e38f8177a300cbef00f..2078a1fea0dd9f7ce63ec4187ee7cb4a49c6a252 100644 (file)
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -80,8 +80,10 @@
                samsung,dw-mshc-ciu-div = <3>;
                samsung,dw-mshc-sdr-timing = <0 4>;
                samsung,dw-mshc-ddr-timing = <0 2>;
+               samsung,dw-mshc-hs400-timing = <0 2>;
+               samsung,read-strobe-delay = <90>;
                pinctrl-names = "default";
-               pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
+               pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8 &sd0_rclk>;
                bus-width = <8>;
                cap-mmc-highspeed;
        };

diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 06737c60d33366b78eb74f16df8e0c113091a2bd..911caad5c8846398c31e0d3c6133c2edd0834e4d 100644 (file)
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -641,15 +641,18 @@
        num-slots = <1>;
        broken-cd;
        mmc-hs200-1_8v;
+       mmc-hs400-1_8v;
        cap-mmc-highspeed;
        non-removable;
        card-detect-delay = <200>;
-       clock-frequency = <400000000>;
+       clock-frequency = <800000000>;
        samsung,dw-mshc-ciu-div = <3>;
        samsung,dw-mshc-sdr-timing = <0 4>;
        samsung,dw-mshc-ddr-timing = <0 2>;
+       samsung,dw-mshc-hs400-timing = <0 2>;
+       samsung,read-strobe-delay = <90>;
        pinctrl-names = "default";
-       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
+       pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8 &sd0_rclk>;
        bus-width = <8>;
 };