From a5950f8dfb87622176e01be41642db66bef8b817 Mon Sep 17 00:00:00 2001
From: Kouei Abe <kouei.abe.cp@renesas.com>
Date: Sat, 13 May 2017 15:51:18 +0200
Subject: [PATCH] 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>
---
drivers/mmc/sh_sdhi.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c
index c64beb6e2a..d181b63905 100644
--- 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)
{
--
2.39.5