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>

diff --git a/arch/arm/boot/dts/omap3-cm-t3530.dts b/arch/arm/boot/dts/omap3-cm-t3530.dts
index 9faf1cd1dcaac263f84fe1c9837f8fc165bba7fb..d1458496520e7ec49ec278cde6d1ff32cbcc7008 100644 (file)
--- 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;
 };