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arm:goni:mmc: Add sd card detection and initialization.

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This change allow to use sd card on Goni the same like mmc 0.
SD card is mmc dev 1, so it can be used like this: "fatls mmc 1:2".
SD card is inited even if eMMC initialization fails.

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Przemyslaw Marczak 2013-09-10 11:34:49 +02:00 • committed by Minkyu Kang
parent 7324907082
commit 5c18a1cf3e
1 changed files with 31 additions and 2 deletions

33
board/samsung/goni/goni.c
View file

@ -68,7 +68,7 @@ int checkboard(void)
#ifdef CONFIG_GENERIC_MMC
int board_mmc_init(bd_t *bis)
{
int i;
int i, ret, ret_sd = 0;
/* MASSMEMORY_EN: XMSMDATA7: GPJ2[7] output high */
s5p_gpio_direction_output(&s5pc110_gpio->j2, 7, 1);
@ -91,7 +91,36 @@ int board_mmc_init(bd_t *bis)
s5p_gpio_set_drv(&s5pc110_gpio->g0, i, GPIO_DRV_4X);
}
return s5p_mmc_init(0, 4);
ret = s5p_mmc_init(0, 4);
if (ret)
error("MMC: Failed to init MMC:0.\n");
/*
* SD card (T_FLASH) detect and init
* T_FLASH_DETECT: EINT28: GPH3[4] input mode
*/
s5p_gpio_cfg_pin(&s5pc110_gpio->h3, 4, GPIO_INPUT);
s5p_gpio_set_pull(&s5pc110_gpio->h3, 4, GPIO_PULL_UP);
if (!s5p_gpio_get_value(&s5pc110_gpio->h3, 4)) {
for (i = 0; i < 7; i++) {
if (i == 2)
continue;
/* GPG2[0:6] special function 2 */
s5p_gpio_cfg_pin(&s5pc110_gpio->g2, i, 0x2);
/* GPG2[0:6] pull disable */
s5p_gpio_set_pull(&s5pc110_gpio->g2, i, GPIO_PULL_NONE);
/* GPG2[0:6] drv 4x */
s5p_gpio_set_drv(&s5pc110_gpio->g2, i, GPIO_DRV_4X);
}
ret_sd = s5p_mmc_init(2, 4);
if (ret_sd)
error("MMC: Failed to init SD card (MMC:2).\n");
}
return ret & ret_sd;
}
#endif