[PATCH] arm: omap: cm-t3530: Add MMC2/SDIO/WLAN support

[Stefan Roese]

Add support for the MMC2/SDIO WiFi Libertas (Marvell) module available
on the CM-T3530 SOM.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Dmitry Lifshitz <lifshitz at compulab.co.il>
Cc: Igor Grinberg <grinberg at compulab.co.il>
Cc: Tony Lindgren <tony at atomide.com>
---
This patch is based on current mainline (v3.14-rc6) plus this compulab patch
series from Dmitry:

[PATCH 00/11] ARM: dts: sbc-t3x: add support for more boards
http://www.spinics.net/lists/arm-kernel/msg300078.html

Thanks,
Stefan

 arch/arm/boot/dts/omap3-cm-t3530.dts | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-cm-t3530.dts b/arch/arm/boot/dts/omap3-cm-t3530.dts
index 9faf1cd..d145849 100644
--- a/arch/arm/boot/dts/omap3-cm-t3530.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3530.dts
@@ -9,4 +9,40 @@
 / {
 	model = "CompuLab CM-T3530";
 	compatible = "compulab,omap3-cm-t3530", "ti,omap34xx", "ti,omap3";
+
+	/* Regulator to trigger the reset signal of the Wifi module */
+	mmc2_sdio_reset: regulator-mmc2-sdio-reset {
+		compatible = "regulator-fixed";
+		regulator-name = "regulator-mmc2-sdio-reset";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&twl_gpio 2 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&omap3_pmx_core {
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2158, PIN_INPUT_PULLUP | MUX_MODE0)		/* sdmmc2_clk.sdmmc2_clk */
+			OMAP3_CORE1_IOPAD(0x215a, PIN_INPUT_PULLUP | MUX_MODE0)		/* sdmmc2_cmd.sdmmc2_cmd */
+			OMAP3_CORE1_IOPAD(0x215c, PIN_INPUT_PULLUP | MUX_MODE0)		/* sdmmc2_dat0.sdmmc2_dat0 */
+			OMAP3_CORE1_IOPAD(0x215e, PIN_INPUT_PULLUP | MUX_MODE0)		/* sdmmc2_dat1.sdmmc2_dat1 */
+			OMAP3_CORE1_IOPAD(0x2160, PIN_INPUT_PULLUP | MUX_MODE0)		/* sdmmc2_dat2.sdmmc2_dat2 */
+			OMAP3_CORE1_IOPAD(0x2162, PIN_INPUT_PULLUP | MUX_MODE0)		/* sdmmc2_dat3.sdmmc2_dat3 */
+			OMAP3_CORE1_IOPAD(0x2164, PIN_OUTPUT | MUX_MODE1)		/* sdmmc2_dat4.sdmmc2_dir_dat0 */
+			OMAP3_CORE1_IOPAD(0x2166, PIN_OUTPUT | MUX_MODE1)		/* sdmmc2_dat5.sdmmc2_dir_dat1 */
+			OMAP3_CORE1_IOPAD(0x2168, PIN_OUTPUT | MUX_MODE1)		/* sdmmc2_dat6.sdmmc2_dir_cmd */
+			OMAP3_CORE1_IOPAD(0x216a, PIN_INPUT | MUX_MODE1)		/* sdmmc2_dat7.sdmmc2_clkin */
+		>;
+	};
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+	vmmc-supply = <&mmc2_sdio_reset>;
+	non-removable;
+	bus-width = <4>;
+	cap-power-off-card;
 };
-- 
1.8.5.5