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mmc: sh_sdhi: Add SDHI support

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R-Car Gen3 series have four SD card interfaces (SDHI0 to SDHI3),
two of which can also be used as MMC interfaces (SDHI2 and SDHI3).
This adds High-speed mode SD clock frequency between 25MHz and 50MHz,
8bit/4bit bus width, high capacity and low voltage device support.

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Kouei Abe
2017-05-13 15:51:18 +02:00
committed by Jaehoon Chung
parent 91a16c3b2f
commit a5950f8dfb
1 changed files with 14 additions and 0 deletions
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14
drivers/mmc/sh_sdhi.c
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@@ -698,6 +698,19 @@ static const struct mmc_ops sh_sdhi_ops = {
.init = sh_sdhi_initialize, .init = sh_sdhi_initialize,
}; };
#ifdef CONFIG_RCAR_GEN3
static struct mmc_config sh_sdhi_cfg = {
.name = DRIVER_NAME,
.ops = &sh_sdhi_ops,
.f_min = CLKDEV_INIT,
.f_max = CLKDEV_HS_DATA,
.voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34,
.host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HS |
MMC_MODE_HS_52MHz,
.part_type = PART_TYPE_DOS,
.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
};
#else
static struct mmc_config sh_sdhi_cfg = { static struct mmc_config sh_sdhi_cfg = {
.name = DRIVER_NAME, .name = DRIVER_NAME,
.ops = &sh_sdhi_ops, .ops = &sh_sdhi_ops,
@@ -708,6 +721,7 @@ static struct mmc_config sh_sdhi_cfg = {
.part_type = PART_TYPE_DOS, .part_type = PART_TYPE_DOS,
.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT, .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
}; };
#endif
int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks) int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks)
{ {