mmc: sh_sdhi: Add SDHI support

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>

diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
index c64beb6e2a965aacdba12b6872a26a684c9a7616..d181b6390586683cb61503fc136e8543f66951f7 100644 (file)
--- a/drivers/mmc/sh_sdhi.c
+++ b/drivers/mmc/sh_sdhi.c
@@ -698,6 +698,19 @@ static const struct mmc_ops sh_sdhi_ops = {
        .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 = {
        .name           = DRIVER_NAME,
        .ops            = &sh_sdhi_ops,
@@ -708,6 +721,7 @@ static struct mmc_config sh_sdhi_cfg = {
        .part_type      = PART_TYPE_DOS,
        .b_max          = CONFIG_SYS_MMC_MAX_BLK_COUNT,
 };
+#endif
 
 int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks)
 {