ARM: dts: Add micro SD card SDHCI node for exynos4412-trats

Add SDHCI node for supporting the micro SD card. On Trats2 board the
SDHCI does not use sd2_cd pins (gpk2-2) for card detect but gpx3-4
instead.

Power is supplied from LDO21 regulator which in off state is controlled
by external GPIO pin.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index dd9ac66..8ee20bd 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -563,6 +563,16 @@
                cap-mmc-highspeed;
        };
 
+       sdhci@12530000 {
+               bus-width = <4>;
+               cd-gpios = <&gpx3 4 0>;
+               cd-inverted;
+               pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4>;
+               pinctrl-names = "default";
+               vmmc-supply = <&ldo21_reg>;
+               status = "okay";
+       };
+
        serial@13800000 {
                status = "okay";
        };