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MX27 3ds: Add SDHC1 support to mx27 3ds

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Add SDHC1 support to MX27 3ds

Signed-off-by: Rogerio Pimentel <rpimentel.silva@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Rogerio Pimentel 2010-10-22 11:03:54 -02:00 committed by Sascha Hauer
parent 71226a4dbf
commit b5ec73eb9a
1 changed files with 38 additions and 0 deletions
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38
arch/arm/mach-imx/mach-mx27_3ds.c
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@ -23,16 +23,20 @@
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/input/matrix_keypad.h> #include <linux/input/matrix_keypad.h>
#include <linux/irq.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <asm/mach/time.h> #include <asm/mach/time.h>
#include <mach/hardware.h> #include <mach/hardware.h>
#include <mach/common.h> #include <mach/common.h>
#include <mach/iomux-mx27.h> #include <mach/iomux-mx27.h>
#include <mach/mmc.h>
#include "devices-imx27.h" #include "devices-imx27.h"
#include "devices.h" #include "devices.h"
#define SD1_EN_GPIO (GPIO_PORTB + 25)
static const int mx27pdk_pins[] __initconst = { static const int mx27pdk_pins[] __initconst = {
/* UART1 */ /* UART1 */
PE12_PF_UART1_TXD, PE12_PF_UART1_TXD,
@ -58,6 +62,14 @@ static const int mx27pdk_pins[] __initconst = {
PD15_AOUT_FEC_COL, PD15_AOUT_FEC_COL,
PD16_AIN_FEC_TX_ER, PD16_AIN_FEC_TX_ER,
PF23_AIN_FEC_TX_EN, 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 = { 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), .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) static void __init mx27pdk_init(void)
{ {
mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
"mx27pdk"); "mx27pdk");
mx27_3ds_sdhc1_enable_level_translator();
imx27_add_imx_uart0(&uart_pdata); imx27_add_imx_uart0(&uart_pdata);
imx27_add_fec(NULL); imx27_add_fec(NULL);
mxc_register_device(&imx_kpp_device, &mx27_3ds_keymap_data); 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) static void __init mx27pdk_timer_init(void)