ARM: dts: Add MMC2/SDIO/WLAN support for cm-t3530

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

Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap3-cm-t3530.dts b/arch/arm/boot/dts/omap3-cm-t3530.dts
index 9faf1cd1dcaa..d1458496520e 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;
 };