Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 364cd540 authored by Daniel Mack's avatar Daniel Mack Committed by Sascha Hauer
Browse files

ARM: MX3: add MMC/SDHC support to mx31lite-db.c 



Signed-off-by: default avatarDaniel Mack <daniel@caiaq.de>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent b7d91a62

arch/arm/mach-mx3/mx31lite-db.c

+70 −0
Original line number Original line Diff line number Diff line
@@ -38,6 +38,7 @@ 
#include <mach/imx-uart.h>

#include <mach/imx-uart.h>

#include <mach/iomux-mx3.h>

#include <mach/iomux-mx3.h>

#include <mach/board-mx31lite.h>

#include <mach/board-mx31lite.h>

#include <mach/mmc.h>





#include "devices.h"

#include "devices.h"
@@ -61,11 +62,80 @@ static struct imxuart_platform_data uart_pdata __initdata = { 
	.flags = IMXUART_HAVE_RTSCTS,

	.flags = IMXUART_HAVE_RTSCTS,

};

};





/* MMC */



static int gpio_det, gpio_wp;



#define MMC_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \

			PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)



static int mxc_mmc1_get_ro(struct device *dev)

{

	return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_LCS0));

}



static int mxc_mmc1_init(struct device *dev,

			 irq_handler_t detect_irq, void *data)

{

	int ret;



	gpio_det = IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1);

	gpio_wp = IOMUX_TO_GPIO(MX31_PIN_GPIO1_6);



	mxc_iomux_set_pad(MX31_PIN_SD1_DATA0, MMC_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SD1_DATA1, MMC_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SD1_DATA2, MMC_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SD1_DATA3, MMC_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SD1_CLK, MMC_PAD_CFG);

	mxc_iomux_set_pad(MX31_PIN_SD1_CMD, MMC_PAD_CFG);



	ret = gpio_request(gpio_det, "MMC detect");

	if (ret)

		return ret;



	ret = gpio_request(gpio_wp, "MMC w/p");

	if (ret)

		goto exit_free_det;



	gpio_direction_input(gpio_det);

	gpio_direction_input(gpio_wp);



	ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_DCD_DCE1), detect_irq,

			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,

			  "MMC detect", data);

	if (ret)

		goto exit_free_wp;



	return 0;



exit_free_wp:

	gpio_free(gpio_wp);



exit_free_det:

	gpio_free(gpio_det);



	return ret;

}



static void mxc_mmc1_exit(struct device *dev, void *data)

{

	gpio_free(gpio_det);

	gpio_free(gpio_wp);

	free_irq(IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), data);

}



static struct imxmmc_platform_data mmc_pdata = {

	.get_ro	 = mxc_mmc1_get_ro,

	.init	   = mxc_mmc1_init,

	.exit	   = mxc_mmc1_exit,

};



void __init mx31lite_db_init(void)

void __init mx31lite_db_init(void)

{

{

	mxc_iomux_setup_multiple_pins(litekit_db_board_pins,

	mxc_iomux_setup_multiple_pins(litekit_db_board_pins,

					ARRAY_SIZE(litekit_db_board_pins),

					ARRAY_SIZE(litekit_db_board_pins),

					"development board pins");

					"development board pins");

	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	mxc_register_device(&mxc_uart_device0, &uart_pdata);

	mxc_register_device(&mxcsdhc_device0, &mmc_pdata);

}

}