Add MMC5 support on BLAZE, which has the wl1283 device hardwired to.
The wl1283 is a 4-wire, 1.8V, embedded SDIO WLAN device with an external IRQ line,
and power-controlled by a GPIO-based fixed regulator.
Based on the patch for zoom by Ohad Ben-Cohen <ohad@xxxxxxxxxx>
Signed-off-by: Vishal Mahaveer <vishalm@xxxxxx>
---
arch/arm/mach-omap2/board-4430sdp.c | 81 +++++++++++++++++++++++++++++++++++
1 files changed, 81 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 63de2d3..189aa65 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -22,6 +22,7 @@
#include <linux/i2c/twl.h>
#include <linux/gpio_keys.h>
#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
#include <linux/leds.h>
#include <linux/leds_pwm.h>
@@ -37,6 +38,7 @@
#include <plat/mmc.h>
#include <plat/omap4-keypad.h>
#include <video/omapdss.h>
+#include <linux/wl12xx.h>
#include "mux.h"
#include "hsmmc.h"
@@ -52,6 +54,9 @@
#define HDMI_GPIO_HPD 60 /* Hot plug pin for HDMI */
#define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
+#define GPIO_WIFI_PMENA 54
+#define GPIO_WIFI_IRQ 53
+
static const int sdp4430_keymap[] = {
KEY(0, 0, KEY_E),
KEY(0, 1, KEY_R),
@@ -329,6 +334,14 @@ static struct omap2_hsmmc_info mmc[] = {
.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
.gpio_wp = -EINVAL,
},
+ {
+ .mmc = 5,
+ .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
+ .gpio_cd = -EINVAL,
+ .gpio_wp = -EINVAL,
+ .ocr_mask = MMC_VDD_165_195,
+ .nonremovable = true,
+ },
{} /* Terminator */
};
@@ -345,6 +358,37 @@ static struct regulator_consumer_supply sdp4430_vmmc_supply[] = {
},
};
+static struct regulator_consumer_supply omap4_sdp4430_vmmc5_supply = {
+ .supply = "vmmc",
+ .dev_name = "omap_hsmmc.4",
+};
+
+static struct regulator_init_data sdp4430_vmmc5 = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &omap4_sdp4430_vmmc5_supply,
+};
+
+static struct fixed_voltage_config sdp4430_vwlan = {
+ .supply_name = "vwl1271",
+ .microvolts = 1800000, /* 1.8V */
+ .gpio = GPIO_WIFI_PMENA,
+ .startup_delay = 70000, /* 70msec */
+ .enable_high = 1,
+ .enabled_at_boot = 0,
+ .init_data = &sdp4430_vmmc5,
+};
+
+static struct platform_device omap_vwlan_device = {
+ .name = "reg-fixed-voltage",
+ .id = 1,
+ .dev = {
+ .platform_data = &sdp4430_vwlan,
+ },
+};
+
static int omap4_twl6030_hsmmc_late_init(struct device *dev)
{
int ret = 0;
@@ -519,6 +563,7 @@ static struct regulator_init_data sdp4430_vusb = {
static struct regulator_init_data sdp4430_clk32kg = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .always_on = true,
},
};
@@ -723,6 +768,41 @@ static inline void board_serial_init(void)
}
#endif
+static void omap4_sdp4430_wifi_mux_init(void)
+{
+ omap_mux_init_gpio(GPIO_WIFI_IRQ, OMAP_PIN_INPUT |
+ OMAP_PIN_OFF_WAKEUPENABLE);
+ omap_mux_init_gpio(GPIO_WIFI_PMENA, OMAP_PIN_OUTPUT);
+
+ omap_mux_init_signal("sdmmc5_cmd.sdmmc5_cmd",
+ OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("sdmmc5_clk.sdmmc5_clk",
+ OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("sdmmc5_dat0.sdmmc5_dat0",
+ OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("sdmmc5_dat1.sdmmc5_dat1",
+ OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("sdmmc5_dat2.sdmmc5_dat2",
+ OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP);
+ omap_mux_init_signal("sdmmc5_dat3.sdmmc5_dat3",
+ OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP);
+
+}
+
+static struct wl12xx_platform_data omap4_sdp4430_wlan_data __initdata = {
+ .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
+ .board_ref_clock = WL12XX_REFCLOCK_26,
+ .board_tcxo_clock = WL12XX_TCXOCLOCK_26,
+};
+
+static void omap4_sdp4430_wifi_init(void)
+{
+ omap4_sdp4430_wifi_mux_init();
+ if (wl12xx_set_platform_data(&omap4_sdp4430_wlan_data))
+ pr_err("Error setting wl12xx data\n");
+ platform_device_register(&omap_vwlan_device);
+}
+
static void __init omap_4430sdp_init(void)
{
int status;
@@ -739,6 +819,7 @@ static void __init omap_4430sdp_init(void)
omap_sfh7741prox_init();
platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices));
board_serial_init();
+ omap4_sdp4430_wifi_init();
omap4_twl6030_hsmmc_init(mmc);
usb_musb_init(&musb_board_data);
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
