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Commit b5ec73eb authored by Rogerio Pimentel's avatar Rogerio Pimentel Committed by Sascha Hauer
Browse files

MX27 3ds: Add SDHC1 support to mx27 3ds 



Add SDHC1 support to MX27 3ds

Signed-off-by: default avatarRogerio Pimentel <rpimentel.silva@gmail.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 71226a4d

arch/arm/mach-imx/mach-mx27_3ds.c

+38 −0
Original line number Diff line number Diff line
@@ -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)