Add MMC5 support on 4430SDP/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 on the patch for mmc3/wl1271 device support for zoom by Ohad Ben-Cohen <[email protected]> Signed-off-by: Vishal Mahaveer <[email protected]> --- arch/arm/mach-omap2/board-4430sdp.c | 76 +++++++++++++++++++++++++++++++++++ 1 files changed, 76 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 63de2d3..555d4f8 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -24,6 +24,7 @@ #include <linux/regulator/machine.h> #include <linux/leds.h> #include <linux/leds_pwm.h> +#include <linux/wl12xx.h> #include <mach/hardware.h> #include <mach/omap4-common.h> @@ -51,6 +52,8 @@ #define OMAP4_SFH7741_ENABLE_GPIO 188 #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), @@ -306,6 +309,26 @@ static struct omap_musb_board_data musb_board_data = { .power = 100, }; +static int wifi_set_power(struct device *dev, int slot, int power_on, int vdd) +{ + static int power_state; + + pr_debug("Powering %s wifi", (power_on ? "on" : "off")); + + if (power_on == power_state) + return 0; + power_state = power_on; + + if (power_on) { + gpio_set_value(GPIO_WIFI_PMENA, 1); + mdelay(70); + } else { + gpio_set_value(GPIO_WIFI_PMENA, 0); + } + + return 0; +} + static struct twl4030_usb_data omap4_usbphy_data = { .phy_init = omap4430_phy_init, .phy_exit = omap4430_phy_exit, @@ -329,6 +352,14 @@ 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 */ }; @@ -361,6 +392,11 @@ static int omap4_twl6030_hsmmc_late_init(struct device *dev) MMCDETECT_INTR_OFFSET; pdata->slots[0].card_detect = twl6030_mmc_card_detect; } + + /* Set the MMC5 (wlan) power function */ + if (pdev->id == 4) + pdata->slots[0].set_power = wifi_set_power; + return ret; } @@ -519,6 +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, }, }; @@ -723,6 +760,43 @@ static inline void board_serial_init(void) } #endif + +static void omap4_4430sdp_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_4430sdp_wlan_data __initdata = { + .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ), + .board_ref_clock = WL12XX_REFCLOCK_26, + .board_tcxo_clock = 1, +}; + +static void omap4_4430sdp_wifi_init(void) +{ + omap4_4430sdp_wifi_mux_init(); + if (gpio_request_one(GPIO_WIFI_PMENA, GPIOF_OUT_INIT_LOW, "wl12xx")) + pr_err("Error initializing up WLAN_EN\n"); + if (wl12xx_set_platform_data(&omap4_4430sdp_wlan_data)) + pr_err("Error setting wl12xx data\n"); +} + static void __init omap_4430sdp_init(void) { int status; @@ -741,6 +815,8 @@ static void __init omap_4430sdp_init(void) board_serial_init(); omap4_twl6030_hsmmc_init(mmc); + omap4_4430sdp_wifi_init(); + usb_musb_init(&musb_board_data); status = omap_ethernet_init(); -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
