diff options
| author | Preetham Chandru <pchandru@nvidia.com> | 2011-11-29 17:53:13 +0530 |
|---|---|---|
| committer | Varun Wadekar <vwadekar@nvidia.com> | 2011-12-08 16:54:46 +0530 |
| commit | b9acd4bb941790c9e654e031d9818b35e74b0256 (patch) | |
| tree | 3f120570abcb5d73edfca274934892eb4067b715 /arch/arm/mach-tegra/board-harmony.h | |
| parent | d6f914ce0a6043b8fcbe642b826eeea3a4d3d4cf (diff) | |
tegra: harmony: wifi: add board support for WiFi
The SDIO WiFi module requires power from external PMU and 1.2V regulator.
The module gets powered on if - (1) all power sources are enabled, and
(2) power (down) and reset (down) pins are enabled as per spec.
To enable mmc/SDIO driver to detect the WiFi hardware, the WiFi chip has
to be powered-up before mmc driver does probing. So, steps should be as
following: (1) required regulators are on, (2) power/reset of WiFi are
enabled, (3) mmc does probing. Later time, when WiFi driver module is
loaded and registers with SDIO, the SDIO driver knows which H/W the driver
has to be associated with.
Bug: 908534
Change-Id: I6510bced5fa9b8b3314c00180f2694903b23145c
Reviewed-on: http://git-master/r/#change,47808,patchset=2
Signed-off-by: Preetham Chandru <pchandru@nvidia.com>
Reviewed-on: http://git-master/r/67121
Reviewed-by: Mursalin Akon <makon@nvidia.com>
Reviewed-by: Allen Martin <amartin@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/board-harmony.h')
| -rw-r--r-- | arch/arm/mach-tegra/board-harmony.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-harmony.h b/arch/arm/mach-tegra/board-harmony.h index 618c336257be..c7a081dfe3b9 100644 --- a/arch/arm/mach-tegra/board-harmony.h +++ b/arch/arm/mach-tegra/board-harmony.h @@ -31,6 +31,15 @@ #define TEGRA_GPIO_HP_DET TEGRA_GPIO_PW2 #define TEGRA_GPIO_INT_MIC_EN TEGRA_GPIO_PX0 #define TEGRA_GPIO_EXT_MIC_EN TEGRA_GPIO_PX1 +/* fixed voltage regulator enable/mode gpios */ +#define TPS_GPIO_EN_1V5 (HARMONY_GPIO_TPS6586X(0)) +#define TPS_GPIO_EN_1V2 (HARMONY_GPIO_TPS6586X(1)) +#define TPS_GPIO_EN_1V05 (HARMONY_GPIO_TPS6586X(2)) +#define TPS_GPIO_MODE_1V05 (HARMONY_GPIO_TPS6586X(3)) + +/* WLAN pwr and reset gpio */ +#define TEGRA_GPIO_WLAN_PWR_LOW TEGRA_GPIO_PK5 +#define TEGRA_GPIO_WLAN_RST_LOW TEGRA_GPIO_PK6 void harmony_pinmux_init(void); int harmony_regulator_init(void); |