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| author | Rogerio Pimentel <rpimentel.silva@gmail.com> | 2010-10-22 13:03:54 (GMT) |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-10-22 18:14:44 (GMT) |
| commit | b5ec73eb9a3d9eac7a883c1ffb0a7e7fd332f8b4 (patch) | |
| tree | 3ab5df20b76e9480b398eaf980ee056c50f240db /arch/arm/mach-imx/mach-mx27_3ds.c | |
| parent | 71226a4dbf84e6134be6876b71af04bb5d7353be (diff) | |
| download | linux-b5ec73eb9a3d9eac7a883c1ffb0a7e7fd332f8b4.tar.xz | |
MX27 3ds: Add SDHC1 support to mx27 3ds
Add SDHC1 support to MX27 3ds
Signed-off-by: Rogerio Pimentel <rpimentel.silva@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/mach-mx27_3ds.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-mx27_3ds.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c index a69dba2..a02a00a 100644 --- a/arch/arm/mach-imx/mach-mx27_3ds.c +++ b/arch/arm/mach-imx/mach-mx27_3ds.c @@ -23,16 +23,20 @@ #include <linux/platform_device.h> #include <linux/gpio.h> #include <linux/input/matrix_keypad.h> +#include <linux/irq.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> #include <mach/hardware.h> #include <mach/common.h> #include <mach/iomux-mx27.h> +#include <mach/mmc.h> #include "devices-imx27.h" #include "devices.h" +#define SD1_EN_GPIO (GPIO_PORTB + 25) + static const int mx27pdk_pins[] __initconst = { /* UART1 */ PE12_PF_UART1_TXD, @@ -58,6 +62,14 @@ static const int mx27pdk_pins[] __initconst = { PD15_AOUT_FEC_COL, PD16_AIN_FEC_TX_ER, PF23_AIN_FEC_TX_EN, + /* SDHC1 */ + PE18_PF_SD1_D0, + PE19_PF_SD1_D1, + PE20_PF_SD1_D2, + PE21_PF_SD1_D3, + PE22_PF_SD1_CMD, + PE23_PF_SD1_CLK, + SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT, }; static const struct imxuart_platform_data uart_pdata __initconst = { @@ -85,13 +97,39 @@ static struct matrix_keymap_data mx27_3ds_keymap_data = { .keymap_size = ARRAY_SIZE(mx27_3ds_keymap), }; +static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq, + void *data) +{ + return request_irq(IRQ_GPIOB(26), detect_irq, IRQF_TRIGGER_FALLING | + IRQF_TRIGGER_RISING, "sdhc1-card-detect", data); +} + +static void mx27_3ds_sdhc1_exit(struct device *dev, void *data) +{ + free_irq(IRQ_GPIOB(26), data); +} + +static struct imxmmc_platform_data sdhc1_pdata = { + .init = mx27_3ds_sdhc1_init, + .exit = mx27_3ds_sdhc1_exit, +}; + +static void mx27_3ds_sdhc1_enable_level_translator(void) +{ + /* Turn on TXB0108 OE pin */ + gpio_request(SD1_EN_GPIO, "sd1_enable"); + gpio_direction_output(SD1_EN_GPIO, 1); +} + static void __init mx27pdk_init(void) { mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), "mx27pdk"); + mx27_3ds_sdhc1_enable_level_translator(); imx27_add_imx_uart0(&uart_pdata); imx27_add_fec(NULL); mxc_register_device(&imx_kpp_device, &mx27_3ds_keymap_data); + mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata); } static void __init mx27pdk_timer_init(void) |