diff options
| author | Dinh Nguyen <Dinh.Nguyen@freescale.com> | 2010-10-23 09:12:47 -0500 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-10-26 16:24:05 +0200 |
| commit | f2d36ecbca2f7a4cde2821a8a70f6f799442e33f (patch) | |
| tree | 5ba7258948b160dc167b38aa9857979a1dbd3d49 /arch/arm/mach-mx5/board-mx51_babbage.c | |
| parent | 47c5382287c863473ac2c11d18d6f4100e9dd5b8 (diff) | |
ARM: mx5: Add gpio-keys to mx51 babbage board
Add functionality for the power button on MX51 Babbage board.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx5/board-mx51_babbage.c')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_babbage.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c index cbf07ff34d2b..1ea54e992774 100644 --- a/arch/arm/mach-mx5/board-mx51_babbage.c +++ b/arch/arm/mach-mx5/board-mx51_babbage.c @@ -18,6 +18,8 @@ #include <linux/io.h> #include <linux/fsl_devices.h> #include <linux/fec.h> +#include <linux/gpio_keys.h> +#include <linux/input.h> #include <mach/common.h> #include <mach/hardware.h> @@ -38,6 +40,7 @@ #define BABBAGE_USBH1_STP (0*32 + 27) /* GPIO_1_27 */ #define BABBAGE_PHY_RESET (1*32 + 5) /* GPIO_2_5 */ #define BABBAGE_FEC_PHY_RESET (1*32 + 14) /* GPIO_2_14 */ +#define BABBAGE_POWER_KEY (1*32 + 21) /* GPIO_2_21 */ /* USB_CTRL_1 */ #define MX51_USB_CTRL_1_OFFSET 0x10 @@ -47,6 +50,21 @@ #define MX51_USB_PLL_DIV_19_2_MHZ 0x01 #define MX51_USB_PLL_DIV_24_MHZ 0x02 +static struct gpio_keys_button babbage_buttons[] = { + { + .gpio = BABBAGE_POWER_KEY, + .code = BTN_0, + .desc = "PWR", + .active_low = 1, + .wakeup = 1, + }, +}; + +static const struct gpio_keys_platform_data imx_button_data __initconst = { + .buttons = babbage_buttons, + .nbuttons = ARRAY_SIZE(babbage_buttons), +}; + static struct pad_desc mx51babbage_pads[] = { /* UART1 */ MX51_PAD_UART1_RXD__UART1_RXD, @@ -298,6 +316,7 @@ __setup("otg_mode=", babbage_otg_mode); static void __init mxc_board_init(void) { struct pad_desc usbh1stp = MX51_PAD_USBH1_STP__USBH1_STP; + struct pad_desc power_key = MX51_PAD_EIM_A27__GPIO_2_21; #if defined(CONFIG_CPU_FREQ_IMX) get_cpu_op = mx51_get_cpu_op; @@ -308,6 +327,11 @@ static void __init mxc_board_init(void) babbage_fec_reset(); imx51_add_fec(NULL); + /* Set the PAD settings for the pwr key. */ + power_key.pad_ctrl = MX51_GPIO_PAD_CTRL_2; + mxc_iomux_v3_setup_pad(&power_key); + imx51_add_gpio_keys(&imx_button_data); + imx51_add_imx_i2c(0, &babbage_i2c_data); imx51_add_imx_i2c(1, &babbage_i2c_data); mxc_register_device(&mxc_hsi2c_device, &babbage_hsi2c_data); |