[PATCH 2/2] arm: dts: a37x0: enable sd card support on espressobin

[Pali Rohár]

From: Wilson Ding <dingwei at marvell.com>

Enabled SDIO slot 0 (south bridge) for SD card on
Espressobin board.

Change-Id: I51a2debf9fba276b9c4a2bc6da91328d47f443e3
Signed-off-by: Wilson Ding <dingwei at marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap at marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/60945
Tested-by: iSoC Platform CI <ykjenk at marvell.com>
Reviewed-by: Igal Liberman <igall at marvell.com>
[pali: Define cd-gpios and enable CONFIG_DM_REGULATOR_GPIO]
Signed-off-by: Pali Rohár <pali at kernel.org>
---
 arch/arm/dts/armada-3720-espressobin.dts    | 20 ++++++++++++++++++++
 configs/mvebu_espressobin-88f3720_defconfig |  1 +
 2 files changed, 21 insertions(+)

diff --git a/arch/arm/dts/armada-3720-espressobin.dts b/arch/arm/dts/armada-3720-espressobin.dts
index f10a953ec5..92eddca6c0 100644
--- a/arch/arm/dts/armada-3720-espressobin.dts
+++ b/arch/arm/dts/armada-3720-espressobin.dts
@@ -67,6 +67,17 @@
 		device_type = "memory";
 		reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
 	};
+
+	vcc_sd_reg0: regulator at 0 {
+		compatible = "regulator-gpio";
+		regulator-name = "vcc_sd0";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-type = "voltage";
+		states = <1800000 0x1
+			  3300000 0x0>;
+		gpios = <&gpionb 4 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &comphy {
@@ -110,6 +121,15 @@
 	status = "okay";
 };
 
+&sdhci0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio_pins>;
+	bus-width = <4>;
+	cd-gpios = <&gpionb 3 GPIO_ACTIVE_LOW>;
+	vqmmc-supply = <&vcc_sd_reg0>;
+	status = "okay";
+};
+
 &spi0 {
 	status = "okay";
 	pinctrl-names = "default";
diff --git a/configs/mvebu_espressobin-88f3720_defconfig b/configs/mvebu_espressobin-88f3720_defconfig
index 495faf43a3..933592af88 100644
--- a/configs/mvebu_espressobin-88f3720_defconfig
+++ b/configs/mvebu_espressobin-88f3720_defconfig
@@ -81,3 +81,4 @@ CONFIG_USB_ETHER_SMSC95XX=y
 CONFIG_SHA1=y
 CONFIG_SHA256=y
 CONFIG_MVNETA=y
+CONFIG_DM_REGULATOR_GPIO=y
-- 
2.20.1