ARM: dts: Add dwmmc DT nodes for exynos5420 SOC

This patch adds the mmc 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.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

3 files changed, 74 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index c67b975c8906..532b1d440abc 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
diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index 79524c74c603..fb5a1e25c632 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -31,6 +31,39 @@
                 };
         };
 
+        mmc@12200000 {
+                status = "okay";
+                broken-cd;
+                supports-highspeed;
+                card-detect-delay = <200>;
+                samsung,dw-mshc-ciu-div = <3>;
+                samsung,dw-mshc-sdr-timing = <0 4>;
+                samsung,dw-mshc-ddr-timing = <0 2>;
+                pinctrl-names = "default";
+                pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
+
+                slot@0 {
+                        reg = <0>;
+                        bus-width = <8>;
+                };
+        };
+
+        mmc@12220000 {
+                status = "okay";
+                supports-highspeed;
+                card-detect-delay = <200>;
+                samsung,dw-mshc-ciu-div = <3>;
+                samsung,dw-mshc-sdr-timing = <2 3>;
+                samsung,dw-mshc-ddr-timing = <1 2>;
+                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 09aa06cb3d3a..3ac3afe0c609 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -22,6 +22,9 @@
         compatible = "samsung,exynos5420";
 
         aliases {
+                mshc0 = &mmc_0;
+                mshc1 = &mmc_1;
+                mshc2 = &mmc_2;
                 pinctrl0 = &pinctrl_0;
                 pinctrl1 = &pinctrl_1;
                 pinctrl2 = &pinctrl_2;
@@ -88,6 +91,42 @@
                 clock-names = "mfc";
         };
 
+        mmc_0: mmc@12200000 {
+                compatible = "samsung,exynos5420-dw-mshc-smu";
+                interrupts = <0 75 0>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                reg = <0x12200000 0x2000>;
+                clocks = <&clock 351>, <&clock 132>;
+                clock-names = "biu", "ciu";
+                fifo-depth = <0x40>;
+                status = "disabled";
+        };
+
+        mmc_1: mmc@12210000 {
+                compatible = "samsung,exynos5420-dw-mshc-smu";
+                interrupts = <0 76 0>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                reg = <0x12210000 0x2000>;
+                clocks = <&clock 352>, <&clock 133>;
+                clock-names = "biu", "ciu";
+                fifo-depth = <0x40>;
+                status = "disabled";
+        };
+
+        mmc_2: mmc@12220000 {
+                compatible = "samsung,exynos5420-dw-mshc";
+                interrupts = <0 77 0>;
+                #address-cells = <1>;
+                #size-cells = <0>;
+                reg = <0x12220000 0x1000>;
+                clocks = <&clock 353>, <&clock 134>;
+                clock-names = "biu", "ciu";
+                fifo-depth = <0x40>;
+                status = "disabled";
+        };
+
         mct@101C0000 {
                 compatible = "samsung,exynos4210-mct";
                 reg = <0x101C0000 0x800>;