diff options
| author | Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> | 2014-11-21 10:19:32 +0900 |
|---|---|---|
| committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2015-02-25 13:13:49 +0900 |
| commit | acdfecbbb44bea1bc265397d7dcfa32db6760528 (patch) | |
| tree | 4b198f9d8dc7300779d1a50273a5d0bb48af225e /board/renesas | |
| parent | e2abab698f5246bc2ff68901e310b9f558fba623 (diff) | |
arm: rmobile: lager: Add support SDHI
Lager board has two SDHI port as SDHI0 and SDHI2.
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>
Diffstat (limited to 'board/renesas')
| -rw-r--r-- | board/renesas/lager/lager.c | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/board/renesas/lager/lager.c b/board/renesas/lager/lager.c index d35d20f130a..83260a1c1a4 100644 --- a/board/renesas/lager/lager.c +++ b/board/renesas/lager/lager.c @@ -22,6 +22,7 @@ #include <asm/arch/rmobile.h> #include <asm/arch/rcar-mstp.h> #include <asm/arch/mmc.h> +#include <asm/arch/sh_sdhi.h> #include <miiphy.h> #include <i2c.h> #include <mmc.h> @@ -60,6 +61,15 @@ void s_init(void) #define ETHER_MSTP813 (1 << 13) #define MMC1_MSTP305 (1 << 5) +#define MSTPSR3 0xE6150048 +#define SMSTPCR3 0xE615013C +#define SDHI0_MSTP314 (1 << 14) +#define SDHI1_MSTP313 (1 << 13) +#define SDHI2_MSTP312 (1 << 12) + +#define SD2CKCR 0xE6150078 +#define SD2_97500KHZ 0x7 + int board_early_init_f(void) { /* TMU0 */ @@ -70,6 +80,14 @@ int board_early_init_f(void) mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813); /* eMMC */ mstp_clrbits_le32(MSTPSR3, SMSTPCR3, MMC1_MSTP305); + /* SDHI0, 2 */ + mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI0_MSTP314 | SDHI2_MSTP312); + + /* + * SD0 clock is set to 97.5MHz by default. + * Set SD2 to the 97.5MHz as well. + */ + writel(SD2_97500KHZ, SD2CKCR); return 0; } @@ -150,7 +168,7 @@ int board_phy_config(struct phy_device *phydev) int board_mmc_init(bd_t *bis) { - int ret = 0; + int ret = -ENODEV; #ifdef CONFIG_SH_MMCIF gpio_request(GPIO_FN_MMC1_D0, NULL); @@ -166,6 +184,45 @@ int board_mmc_init(bd_t *bis) ret = mmcif_mmc_init(); #endif + +#ifdef CONFIG_SH_SDHI + gpio_request(GPIO_FN_SD0_DAT0, NULL); + gpio_request(GPIO_FN_SD0_DAT1, NULL); + gpio_request(GPIO_FN_SD0_DAT2, NULL); + gpio_request(GPIO_FN_SD0_DAT3, 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_DAT0, NULL); + gpio_request(GPIO_FN_SD2_DAT1, NULL); + gpio_request(GPIO_FN_SD2_DAT2, NULL); + gpio_request(GPIO_FN_SD2_DAT3, NULL); + gpio_request(GPIO_FN_SD2_CLK, NULL); + gpio_request(GPIO_FN_SD2_CMD, NULL); + gpio_request(GPIO_FN_SD2_CD, NULL); + + /* + * SDHI 0 + * need JP3 set to pin-1 side on board. + */ + gpio_request(GPIO_GP_5_24, NULL); + gpio_request(GPIO_GP_5_29, NULL); + gpio_direction_output(GPIO_GP_5_24, 1); /* power on */ + gpio_direction_output(GPIO_GP_5_29, 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 2 */ + gpio_request(GPIO_GP_5_25, NULL); + gpio_request(GPIO_GP_5_30, NULL); + gpio_direction_output(GPIO_GP_5_25, 1); /* power on */ + gpio_direction_output(GPIO_GP_5_30, 1); /* 1: 3.3V, 0: 1.8V */ + + ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI2_BASE, 2, 0); +#endif return ret; } |