HS400 timing value set is added for SMDK5420.
And GPIO line for RCLK should be pull-down state.
Signed-off-by: Seungwon Jeon <tgih....@samsung.com>
---
.../devicetree/bindings/mmc/exynos-dw-mshc.txt | 6 ++++++
arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 7 +++++++
arch/arm/boot/dts/exynos5420-smdk5420.dts | 5 ++++-
3 files changed, 17 insertions(+), 1 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index ca1914f..39c3014 100644
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
@@ -29,6 +29,9 @@ Required Properties:
data rate mode operation. Refer notes below for the order of the cells and
the
valid values.
+* samsung,dw-mshc-hs200-timing: Similar with dw-mshc-sdr-timing.
+* samsung,dw-mshc-hs400-timing: Similar with dw-mshc-ddr-timing.
+
Notes for the sdr-timing and ddr-timing values:
The order of the cells should be
@@ -45,6 +48,9 @@ Required Properties:
- if CIU clock divider value is 0 (that is divide by 1), both tx and rx
phase shift clocks should be 0.
+* read-strobe-delay: RCLK (Data strobe) delay to control HS400 mode
+ (Latency value for delay line in Read path)
+
Required properties for a slot:
* gpios: specifies a list of gpios used for command, clock and data bus. The
diff --git a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
index e62c8eb..51233ee 100644
--- a/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5420-pinctrl.dtsi
@@ -194,6 +194,13 @@
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_clk: sd1-clk {
samsung,pins = "gpc1-0";
samsung,pin-function = <2>;
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts
b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 3ad4ef3..4796d44 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -38,8 +38,11 @@
card-detect-delay = <200>;
samsung,dw-mshc-sdr-timing = <0 4 3>;
samsung,dw-mshc-ddr-timing = <0 2 3>;
+ samsung,dw-mshc-hs200-timing = <0 2 3>;
+ samsung,dw-mshc-hs400-timing = <0 2 1>;
+ 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>;
slot@0 {
reg = <0>;
--
1.7.4.1
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