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arm: rmobile: gose: Add support SDHI

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Gose board has three SDHI port.
This adds GPIO configuration and initialization function of SDHI, and
enables MMC command.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Nobuhiro Iwamatsu 2014-11-12 11:29:39 +09:00 committed by Nobuhiro Iwamatsu
parent 11e329106b
commit e2abab698f
3 changed files with 74 additions and 0 deletions
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67
board/renesas/gose/gose.c
View File

@ -18,6 +18,7 @@
#include <asm/gpio.h>
#include <asm/arch/rmobile.h>
#include <asm/arch/rcar-mstp.h>
#include <asm/arch/sh_sdhi.h>
#include <netdev.h>
#include <miiphy.h>
#include <i2c.h>
@ -48,6 +49,14 @@ void s_init(void)
#define SCIF0_MSTP721 (1 << 21)
#define ETHER_MSTP813 (1 << 13)
#define SDHI0_MSTP314 (1 << 14)
#define SDHI1_MSTP312 (1 << 12)
#define SDHI2_MSTP311 (1 << 11)
#define SD1CKCR 0xE6150078
#define SD2CKCR 0xE615026C
#define SD_97500KHZ 0x7
int board_early_init_f(void)
{
/* TMU0 */
@ -59,6 +68,12 @@ int board_early_init_f(void)
/* ETHER */
mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);
/* SDHI */
mstp_clrbits_le32(MSTPSR3, SMSTPCR3,
SDHI0_MSTP314 | SDHI1_MSTP312 | SDHI2_MSTP311);
writel(SD_97500KHZ, SD1CKCR);
writel(SD_97500KHZ, SD2CKCR);
return 0;
}
@ -126,6 +141,58 @@ int board_eth_init(bd_t *bis)
return ret;
}
int board_mmc_init(bd_t *bis)
{
int ret = -ENODEV;
#ifdef CONFIG_SH_SDHI
gpio_request(GPIO_FN_SD0_DATA0, NULL);
gpio_request(GPIO_FN_SD0_DATA1, NULL);
gpio_request(GPIO_FN_SD0_DATA2, NULL);
gpio_request(GPIO_FN_SD0_DATA3, NULL);
gpio_request(GPIO_FN_SD0_CLK, NULL);
gpio_request(GPIO_FN_SD0_CMD, NULL);
gpio_request(GPIO_FN_SD0_CD, NULL);
gpio_request(GPIO_FN_SD2_DATA0, NULL);
gpio_request(GPIO_FN_SD2_DATA1, NULL);
gpio_request(GPIO_FN_SD2_DATA2, NULL);
gpio_request(GPIO_FN_SD2_DATA3, NULL);
gpio_request(GPIO_FN_SD2_CLK, NULL);
gpio_request(GPIO_FN_SD2_CMD, NULL);
gpio_request(GPIO_FN_SD2_CD, NULL);
/* SDHI 0 */
gpio_request(GPIO_GP_7_17, NULL);
gpio_request(GPIO_GP_2_12, NULL);
gpio_direction_output(GPIO_GP_7_17, 1); /* power on */
gpio_direction_output(GPIO_GP_2_12, 1); /* 1: 3.3V, 0: 1.8V */
ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI0_BASE, 0,
SH_SDHI_QUIRK_16BIT_BUF);
if (ret)
return ret;
/* SDHI 1 */
gpio_request(GPIO_GP_7_18, NULL);
gpio_request(GPIO_GP_2_13, NULL);
gpio_direction_output(GPIO_GP_7_18, 1); /* power on */
gpio_direction_output(GPIO_GP_2_13, 1); /* 1: 3.3V, 0: 1.8V */
ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI1_BASE, 1, 0);
if (ret)
return ret;
/* SDHI 2 */
gpio_request(GPIO_GP_7_19, NULL);
gpio_request(GPIO_GP_2_26, NULL);
gpio_direction_output(GPIO_GP_7_19, 1); /* power on */
gpio_direction_output(GPIO_GP_2_26, 1); /* 1: 3.3V, 0: 1.8V */
ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI2_BASE, 2, 0);
#endif
return ret;
}
int dram_init(void)
{
gd->ram_size = CONFIG_SYS_SDRAM_SIZE;

1
configs/gose_defconfig
View File

@ -3,3 +3,4 @@ CONFIG_RMOBILE=y
CONFIG_TARGET_GOSE=y
CONFIG_DM=y
CONFIG_DM_SERIAL=y
CONFIG_SH_SDHI=y

6
include/configs/gose.h
View File

@ -98,4 +98,10 @@
/* SCIF0 */
#define CONFIG_SMSTP7_ENA 0x00200000
/* SDHI */
#define CONFIG_MMC
#define CONFIG_CMD_MMC
#define CONFIG_GENERIC_MMC
#define CONFIG_SH_SDHI_FREQ 97500000
#endif /* __GOSE_H */