On 08/11/2010 01:12 AM, ext Ohad Ben-Cohen wrote:
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<o...@wizery.com>
---
arch/arm/mach-omap2/board-zoom-peripherals.c | 34 ++++++++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c
b/arch/arm/mach-omap2/board-zoom-peripherals.c
index de88635..82776bc 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -17,6 +17,8 @@
#include<linux/i2c/twl.h>
#include<linux/regulator/machine.h>
#include<linux/regulator/fixed.h>
+#include<linux/mmc/host.h>
+#include<linux/wl12xx.h>
#include<asm/mach-types.h>
#include<asm/mach/arch.h>
@@ -29,6 +31,7 @@
#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 +188,28 @@ static struct platform_device omap_vwlan_device = {
},
};
+struct wl12xx_platform_data omap_zoom_wlan_data = {
+ /* ZOOM ref clock is 26 MHz */
+ .board_ref_clock = 1,
+};
+
+static struct resource omap_zoom_wl1271_resources[] = {
+ {
+ .start = OMAP_GPIO_IRQ(OMAP_ZOOM_WLAN_IRQ_GPIO),
+ .end = OMAP_GPIO_IRQ(OMAP_ZOOM_WLAN_IRQ_GPIO),
+ .flags = IORESOURCE_IRQ,
+ }
+};
+static struct platform_device omap_zoom_wl1271 = {
+ .name = "wl1271_plat.2",
+ .id = -1,
+ .resource = omap_zoom_wl1271_resources,
+ .num_resources = ARRAY_SIZE(omap_zoom_wl1271_resources),
+ .dev = {
+ .platform_data =&omap_zoom_wlan_data,
+ },
+};
+
static struct omap2_hsmmc_info mmc[] __initdata = {
{
.name = "external",
@@ -202,6 +227,14 @@ static struct omap2_hsmmc_info mmc[] __initdata = {
.nonremovable = true,
.power_saving = true,
},
+ {
+ .name = "wl1271",
+ .mmc = 3,
+ .wires = 4,
+ .gpio_wp = -EINVAL,
+ .gpio_cd = -EINVAL,
+ .ocr_mask = MMC_VDD_165_195,
Do we really need to specify ocr_mask here?
It seems to be set in omap_hsmmc_reg_get() by calling
mmc_regulator_get_ocrmask().
This should automatically pick the right mask if you have defined the "vmmc"
regulator output voltage correctly.
regards,
-roger
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