diff options
author | Vishal Mahaveer <vishalm@ti.com> | 2011-07-05 03:38:23 -0700 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2011-07-05 03:38:23 -0700 |
commit | 6de8bae86c0459a881cead6735cd6971334cadd3 (patch) | |
tree | 082726ae4578ed93fcf02832be83bb724149b07a /arch/arm/mach-omap2/board-4430sdp.c | |
parent | 27a69d709e63efc23df18cc411fa341749de750e (diff) | |
download | linux-6de8bae86c0459a881cead6735cd6971334cadd3.tar.bz2 |
omap: blaze: add mmc5/wl1283 device support
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@wizery.com>
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
[tony@atomide.com: improved formatting a bit]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-4430sdp.c')
-rw-r--r-- | 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 5e03ddb0eb17..e5e8bbb00359 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" @@ -51,6 +53,9 @@ #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), @@ -326,6 +331,14 @@ static struct omap2_hsmmc_info mmc[] = { .gpio_cd = -EINVAL, .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 */ }; @@ -337,6 +350,37 @@ static struct regulator_consumer_supply sdp4430_vmmc_supply[] = { REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"), }; +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; @@ -511,6 +555,7 @@ static struct regulator_init_data sdp4430_vusb = { static struct regulator_init_data sdp4430_clk32kg = { .constraints = { .valid_ops_mask = REGULATOR_CHANGE_STATUS, + .always_on = true, }, }; @@ -715,6 +760,41 @@ 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; @@ -731,6 +811,7 @@ 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); |