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Commit 2eb30c81 authored by David A. Griego's avatar David A. Griego Committed by Kevin Hilman
Browse files

davinci: Add MMC/SD support for DA830/OMAP-L137 EVM 



Add pinmux settings, etc. to enable the MMC/SC hardware.

Signed-off-by: default avatarDavid A. Griego <dgriego@mvista.com>
Signed-off-by: default avatarMark A. Greer <mgreer@mvista.com>
Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent f63dd12d

arch/arm/mach-davinci/board-da830-evm.c

+54 −0
Original line number Original line Diff line number Diff line
@@ -23,6 +23,7 @@ 
#include <mach/irqs.h>

#include <mach/irqs.h>

#include <mach/cp_intc.h>

#include <mach/cp_intc.h>

#include <mach/mux.h>

#include <mach/mux.h>

#include <mach/gpio.h>

#include <mach/da8xx.h>

#include <mach/da8xx.h>

#include <mach/asp.h>

#include <mach/asp.h>
@@ -83,6 +84,57 @@ static struct snd_platform_data da830_evm_snd_data = { 
	.rxnumevt	= 1,

	.rxnumevt	= 1,

};

};





/*

 * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.

 */

static const short da830_evm_mmc_sd_pins[] = {

	DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,

	DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,

	DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,

	DA830_MMCSD_CMD,   DA830_GPIO2_1,     DA830_GPIO2_2,

	-1

};



#define DA830_MMCSD_WP_PIN		GPIO_TO_PIN(2, 1)



static int da830_evm_mmc_get_ro(int index)

{

	return gpio_get_value(DA830_MMCSD_WP_PIN);

}



static struct davinci_mmc_config da830_evm_mmc_config = {

	.get_ro			= da830_evm_mmc_get_ro,

	.wires			= 4,

	.version		= MMC_CTLR_VERSION_2,

};



static inline void da830_evm_init_mmc(void)

{

	int ret;



	ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);

	if (ret) {

		pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",

				ret);

		return;

	}



	ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");

	if (ret) {

		pr_warning("da830_evm_init: can not open GPIO %d\n",

			   DA830_MMCSD_WP_PIN);

		return;

	}

	gpio_direction_input(DA830_MMCSD_WP_PIN);



	ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);

	if (ret) {

		pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",

				ret);

		gpio_free(DA830_MMCSD_WP_PIN);

	}

}



static __init void da830_evm_init(void)

static __init void da830_evm_init(void)

{

{

	struct davinci_soc_info *soc_info = &davinci_soc_info;

	struct davinci_soc_info *soc_info = &davinci_soc_info;
@@ -132,6 +184,8 @@ static __init void da830_evm_init(void) 
				ret);

				ret);





	da8xx_register_mcasp(1, &da830_evm_snd_data);

	da8xx_register_mcasp(1, &da830_evm_snd_data);



	da830_evm_init_mmc();

}

}





#ifdef CONFIG_SERIAL_8250_CONSOLE

#ifdef CONFIG_SERIAL_8250_CONSOLE