omap: zoom: add mmc3/wl1271 device support

Add MMC3 support on ZOOM, which has the wl1271 device hardwired to.

The wl1271 is a 4-wire, 1.8V, embedded SDIO WLAN device with an
external IRQ line, and power-controlled by a GPIO-based fixed regulator.

Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index f5df9a2b1465..6aa0728fa15d 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -17,6 +17,7 @@
 #include <linux/i2c/twl.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
+#include <linux/wl12xx.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -29,6 +30,7 @@
 #include "hsmmc.h"
 
 #define OMAP_ZOOM_WLAN_PMENA_GPIO       (101)
+#define OMAP_ZOOM_WLAN_IRQ_GPIO         (162)
 
 /* Zoom2 has Qwerty keyboard*/
 static int board_keymap[] = {
@@ -185,6 +187,12 @@ static struct platform_device omap_vwlan_device = {
         },
 };
 
+struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
+        .irq = OMAP_GPIO_IRQ(OMAP_ZOOM_WLAN_IRQ_GPIO),
+        /* ZOOM ref clock is 26 MHz */
+        .board_ref_clock = 1,
+};
+
 static struct omap2_hsmmc_info mmc[] __initdata = {
         {
                 .name           = "external",
@@ -202,6 +210,14 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
                 .nonremovable   = true,
                 .power_saving   = true,
         },
+        {
+                .name           = "wl1271",
+                .mmc            = 3,
+                .wires          = 4,
+                .gpio_wp        = -EINVAL,
+                .gpio_cd        = -EINVAL,
+                .nonremovable   = true,
+        },
         {}      /* Terminator */
 };
 
@@ -313,6 +329,9 @@ static void enable_board_wakeup_source(void)
 
 void __init zoom_peripherals_init(void)
 {
+        if (wl12xx_set_platform_data(&omap_zoom_wlan_data))
+                pr_err("error setting wl12xx data\n");
+
         omap_i2c_init();
         platform_device_register(&omap_vwlan_device);
         usb_musb_init(&musb_board_data);