This patch adds the device tree node entries for exynos5420 SOC.
Exynos5420 has a different version of DWMMC controller,so a new
compatible string is used to distinguish it from the prior SOC's.
changes since V2:
1.dropped num-slots property from node as its not required
if number of card slots available is 1.
2.Move the below properties
a.fifo-depth
b.card-detect-delay
c.samsung,dw-mshc-ciu-div
d.samsung,dw-mshc-sdr-timing
e.samsung,dw-mshc-ddr-timing
from board dts to SOC dts,as these are not board specific properties.
3.Updated the binding document exynos-dw-mshc.txt.
changes since V1:
1.disable node by status = disabled in SOC file
2.enable node by status = okay in board specific file
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@xxxxxxxxxxx>
---
.../devicetree/bindings/mmc/exynos-dw-mshc.txt | 4 ++
arch/arm/boot/dts/exynos5420-smdk5420.dts | 26 ++++++++++
arch/arm/boot/dts/exynos5420.dtsi | 51 ++++++++++++++++++++
3 files changed, 81 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index 6d1c098..25368e8 100644
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
@@ -16,6 +16,8 @@ Required Properties:
specific extensions.
- "samsung,exynos5250-dw-mshc": for controllers with Samsung Exynos5250
specific extensions.
+ - "samsung,exynos5420-dw-mshc": for controllers with Samsung Exynos5420
+ specific extensions.
* samsung,dw-mshc-ciu-div: Specifies the divider value for the card interface
unit (ciu) clock. This property is applicable only for Exynos5 SoC's and
@@ -31,6 +33,8 @@ Required Properties:
data rate mode operation. Refer notes below for the order of the cells and the
valid values.
+* bypass-smu: Bypass Security Management Unit of eMMC channel 0 and channel 1.
+
Notes for the sdr-timing and ddr-timing values:
The order of the cells should be
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index bafba25..bc604d4 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -31,6 +31,32 @@
};
};
+ dwmmc0@12200000 {
+ status = "okay";
+ broken-cd;
+ bypass-smu;
+ supports-highspeed;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <8>;
+ };
+ };
+
+ dwmmc2@12220000 {
+ status = "okay";
+ supports-highspeed;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
+
dp-controller@145B0000 {
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd>;
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 5353e32..1f08d1b 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -22,6 +22,9 @@
compatible = "samsung,exynos5420";
aliases {
+ mshc0 = &dwmmc_0;
+ mshc1 = &dwmmc_1;
+ mshc2 = &dwmmc_2;
pinctrl0 = &pinctrl_0;
pinctrl1 = &pinctrl_1;
pinctrl2 = &pinctrl_2;
@@ -84,6 +87,54 @@
clock-names = "mfc";
};
+ dwmmc_0: dwmmc0@12200000 {
+ compatible = "samsung,exynos5420-dw-mshc";
+ interrupts = <0 75 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x12200000 0x2000>;
+ clocks = <&clock 351>, <&clock 132>;
+ clock-names = "biu", "ciu";
+ fifo-depth = <0x80>;
+ card-detect-delay = <200>;
+ samsung,dw-mshc-ciu-div = <3>;
+ samsung,dw-mshc-sdr-timing = <0 4>;
+ samsung,dw-mshc-ddr-timing = <0 2>;
+ status = "disabled";
+ };
+
+ dwmmc_1: dwmmc1@12210000 {
+ compatible = "samsung,exynos5420-dw-mshc";
+ interrupts = <0 76 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x12210000 0x2000>;
+ clocks = <&clock 352>, <&clock 133>;
+ clock-names = "biu", "ciu";
+ fifo-depth = <0x80>;
+ card-detect-delay = <200>;
+ samsung,dw-mshc-ciu-div = <3>;
+ samsung,dw-mshc-sdr-timing = <0 4>;
+ samsung,dw-mshc-ddr-timing = <0 2>;
+ status = "disabled";
+ };
+
+ dwmmc_2: dwmmc2@12220000 {
+ compatible = "samsung,exynos5420-dw-mshc";
+ interrupts = <0 77 0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x12220000 0x2000>;
+ clocks = <&clock 353>, <&clock 134>;
+ clock-names = "biu", "ciu";
+ fifo-depth = <0x80>;
+ card-detect-delay = <200>;
+ samsung,dw-mshc-ciu-div = <3>;
+ samsung,dw-mshc-sdr-timing = <2 3>;
+ samsung,dw-mshc-ddr-timing = <1 2>;
+ status = "disabled";
+ };
+
mct@101C0000 {
compatible = "samsung,exynos4210-mct";
reg = <0x101C0000 0x800>;
--
1.7.9.5
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