diff options
| author | Tapani <tapani@vmail.me> | 2013-01-17 11:19:15 +0100 |
|---|---|---|
| committer | Tapani <tapani@vmail.me> | 2013-01-17 11:19:15 +0100 |
| commit | 703dd543b839c10827727c5f8ac8c52ff823326e (patch) | |
| tree | 675019926571399f11be702bb8a4d96b191c282c /arch | |
| parent | 27ec007a250b2043c0f38dcd56799c0813aaec34 (diff) | |
Wandboard : Add wifi support to board file
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-mx6/board-wand.c | 54 |
1 files changed, 52 insertions, 2 deletions
diff --git a/arch/arm/mach-mx6/board-wand.c b/arch/arm/mach-mx6/board-wand.c index 4a754c7adf51..25fc6b4976b8 100644 --- a/arch/arm/mach-mx6/board-wand.c +++ b/arch/arm/mach-mx6/board-wand.c @@ -31,6 +31,12 @@ #define WAND_USB_OTG_PWR IMX_GPIO_NR(3, 22) #define WAND_USB_H1_OC IMX_GPIO_NR(3, 30) +#define WAND_WL_REF_ON IMX_GPIO_NR(2, 29) +#define WAND_WL_RST_N IMX_GPIO_NR(5, 2) +#define WAND_WL_REG_ON IMX_GPIO_NR(1, 26) +#define WAND_WL_HOST_WAKE IMX_GPIO_NR(1, 29) +#define WAND_WL_WAKE IMX_GPIO_NR(1, 30) + /* Syntactic sugar for pad configuration */ #define WAND_SETUP_PADS(p) \ mxc_iomux_v3_setup_multiple_pads((p), ARRAY_SIZE(p)) @@ -144,8 +150,8 @@ static int wand_sd_speed_change(unsigned int sd, int clock) { pad_speed[sd] = 100; return WAND_SETUP_PADS(wand_sd_pads[sd][1]); } else { - if (pad_speed[sd] == 25) return 0; - pad_speed[sd] = 25; + if (pad_speed[sd] == 50) return 0; + pad_speed[sd] = 50; return WAND_SETUP_PADS(wand_sd_pads[sd][0]); } } @@ -162,6 +168,7 @@ static const struct esdhc_platform_data wand_sd_data[3] = { }, { .cd_gpio =-EINVAL, .wp_gpio =-EINVAL, + .keep_power_at_suspend = 1, .platform_pad_change = wand_sd_speed_change, }, { .cd_gpio = WAND_SD3_CD, @@ -580,6 +587,48 @@ static void wand_init_hdmi(void) { } +/**************************************************************************** + * + * WiFi + * + ****************************************************************************/ + +static const __initdata iomux_v3_cfg_t wand_wifi_pads[] = { + /* ref_on, enable 32k clock */ + MX6DL_PAD_EIM_EB1__GPIO_2_29, + /* Wifi reset (resets when low!) */ + MX6DL_PAD_EIM_A25__GPIO_5_2, + /* reg on, signal to FDC6331L */ + MX6DL_PAD_ENET_RXD1__GPIO_1_26, + /* host wake */ + MX6DL_PAD_ENET_TXD1__GPIO_1_29, + /* wl wake - nc */ + MX6DL_PAD_ENET_TXD0__GPIO_1_30, +}; + +/* ------------------------------------------------------------------------ */ + +/* assumes SD/MMC pins are set; call after wand_init_sd() */ +static __init void wand_init_wifi(void) { + WAND_SETUP_PADS(wand_wifi_pads); + + gpio_request(WAND_WL_RST_N, "wl_rst_n"); + gpio_direction_output(WAND_WL_RST_N, 1); + + gpio_request(WAND_WL_REF_ON, "wl_ref_on"); + gpio_direction_output(WAND_WL_REF_ON, 1); + + gpio_request(WAND_WL_REG_ON, "wl_reg_on"); + gpio_direction_output(WAND_WL_REG_ON, 1); + + gpio_request(WAND_WL_WAKE, "wl_wake"); + gpio_direction_output(WAND_WL_WAKE, 1); + + gpio_request(WAND_WL_HOST_WAKE, "wl_host_wake"); + gpio_direction_input(WAND_WL_HOST_WAKE); +} + + /***************************************************************************** * * Init clocks and early boot console @@ -622,6 +671,7 @@ static void __init wand_board_init(void) { wand_init_usb(); wand_init_ipu(); wand_init_hdmi(); + wand_init_wifi(); } /* ------------------------------------------------------------------------ */ |