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

Commit ef782d8d authored by Victor Rodriguez's avatar Victor Rodriguez Committed by Kevin Hilman
Browse files

davinci: MMC/SD support for Omapl138-Hawkboard 



This patch adds MMC/SD support for the Hawkboard-L138 system

Signed-off-by: default avatarVictor Rodriguez <vm.rod25@gmail.com>
Tested-by: default avatarRene Gonzalez <renegs.2378@gmail.com>
Acked-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent fe358d6a

arch/arm/mach-davinci/board-omapl138-hawk.c

+72 −0
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ 
#include <mach/mux.h>



#define HAWKBOARD_PHY_ID		"0:07"

#define DA850_HAWK_MMCSD_CD_PIN		GPIO_TO_PIN(3, 12)

#define DA850_HAWK_MMCSD_WP_PIN		GPIO_TO_PIN(3, 13)



static short omapl138_hawk_mii_pins[] __initdata = {

	DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
@@ -110,6 +112,74 @@ static struct edma_rsv_info *da850_edma_rsv[2] = { 
	&da850_edma_cc1_rsv,

};



static const short hawk_mmcsd0_pins[] = {

	DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,

	DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,

	DA850_GPIO3_12, DA850_GPIO3_13,

	-1

};



static int da850_hawk_mmc_get_ro(int index)

{

	return gpio_get_value(DA850_HAWK_MMCSD_WP_PIN);

}



static int da850_hawk_mmc_get_cd(int index)

{

	return !gpio_get_value(DA850_HAWK_MMCSD_CD_PIN);

}



static struct davinci_mmc_config da850_mmc_config = {

	.get_ro		= da850_hawk_mmc_get_ro,

	.get_cd		= da850_hawk_mmc_get_cd,

	.wires		= 4,

	.max_freq	= 50000000,

	.caps		= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,

	.version	= MMC_CTLR_VERSION_2,

};



static __init void omapl138_hawk_mmc_init(void)

{

	int ret;



	ret = davinci_cfg_reg_list(hawk_mmcsd0_pins);

	if (ret) {

		pr_warning("%s: MMC/SD0 mux setup failed: %d\n",

			__func__, ret);

		return;

	}



	ret = gpio_request_one(DA850_HAWK_MMCSD_CD_PIN,

			GPIOF_DIR_IN, "MMC CD");

	if (ret < 0) {

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

			__func__, DA850_HAWK_MMCSD_CD_PIN);

		return;

	}



	ret = gpio_request_one(DA850_HAWK_MMCSD_WP_PIN,

			GPIOF_DIR_IN, "MMC WP");

	if (ret < 0) {

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

			__func__, DA850_HAWK_MMCSD_WP_PIN);

		goto mmc_setup_wp_fail;

	}



	ret = da8xx_register_mmcsd0(&da850_mmc_config);

	if (ret) {

		pr_warning("%s: MMC/SD0 registration failed: %d\n",

			__func__, ret);

		goto mmc_setup_mmcsd_fail;

	}



	return;



mmc_setup_mmcsd_fail:

	gpio_free(DA850_HAWK_MMCSD_WP_PIN);

mmc_setup_wp_fail:

	gpio_free(DA850_HAWK_MMCSD_CD_PIN);

}



static struct davinci_uart_config omapl138_hawk_uart_config __initdata = {

	.enabled_uarts = 0x7,

};
@@ -127,6 +197,8 @@ static __init void omapl138_hawk_init(void) 
		pr_warning("%s: EDMA registration failed: %d\n",

			__func__, ret);



	omapl138_hawk_mmc_init();



	ret = da8xx_register_watchdog();

	if (ret)

		pr_warning("omapl138_hawk_init: "