[U-Boot] {PATCH v3 4/4] board: trats2: Enable device tree on Trats2

[Beomho Seo <beomho.seo@samsung.com>]

This patch add dwmmc emmc controller node on exynos4 and exynos4412 device tree.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Piotr Wilczek <p.wilczek@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Piotr Wilczek <p.wilczek@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
---
Changes for v3:
- Subtract one from div to set accurate frequency.

Changes for v2:
- None.

 arch/arm/dts/exynos4.dtsi          |    8 ++++++++
 arch/arm/dts/exynos4412-trats2.dts |    8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm/dts/exynos4.dtsi b/arch/arm/dts/exynos4.dtsi
index 71dc7eb..ab99906 100644
--- a/arch/arm/dts/exynos4.dtsi
+++ b/arch/arm/dts/exynos4.dtsi
@@ -128,6 +128,14 @@
 		interrupts = <0 78 0>;
 	};

+	dwmmc at 12550000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "samsung,exynos4412-dwmmc";
+		reg = <0x12550000 0x1000>;
+		interrupts = <0 131 0>;
+	};
+
 	gpio: gpio {
 		gpio-controller;
 		#gpio-cells = <2>;
diff --git a/arch/arm/dts/exynos4412-trats2.dts b/arch/arm/dts/exynos4412-trats2.dts
index 7d32067..438e70e 100644
--- a/arch/arm/dts/exynos4412-trats2.dts
+++ b/arch/arm/dts/exynos4412-trats2.dts
@@ -31,6 +31,7 @@
 		console = "/serial at 13820000";
 		mmc0 = "sdhci at 12510000";
 		mmc2 = "sdhci at 12530000";
+		mmc4 = "dwmmc at 12550000";
 	};

 	i2c at 138d0000 {
@@ -431,4 +432,11 @@
 	sdhci at 12540000 {
 		status = "disabled";
 	};
+
+	dwmmc at 12550000 {
+		samsung,bus-width = <8>;
+		samsung,timing = <0 1 0>;
+		pwr-gpios = <&gpio 0x2004002 0>;
+		index = <4>;
+	};
 };
-- 
1.7.9.5