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mmc: sh_mmcif: Add support rmobile

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Renesas R-Mobile/R-Car ARM SoC of MMC has the same IP that are supported by
sh_mmcif. This adds support R-Mobile/R-Car ARM SoC with the setting of the
clock support.

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 2014-12-03 17:57:48 +09:00 committed by Nobuhiro Iwamatsu
parent 7a7eb983a4
commit 9675f61077
2 changed files with 7 additions and 2 deletions
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2
drivers/mmc/sh_mmcif.c
View file

@ -596,7 +596,7 @@ int mmcif_mmc_init(void)
host->clk = CONFIG_SH_MMCIF_CLK;
sh_mmcif_cfg.f_min = MMC_CLK_DIV_MIN(host->clk);
sh_mmcif_cfg.f_max = MMC_CLK_DIV_MAX;
sh_mmcif_cfg.f_max = MMC_CLK_DIV_MAX(host->clk);
mmc = mmc_create(&sh_mmcif_cfg, host);
if (mmc == NULL) {

7
drivers/mmc/sh_mmcif.h
View file

@ -199,8 +199,13 @@ struct sh_mmcif_regs {
#define SOFT_RST_OFF (0 << 31)
#define CLKDEV_EMMC_DATA 52000000 /* 52MHz */
#ifdef CONFIG_RMOBILE
#define MMC_CLK_DIV_MIN(clk) (clk / (1 << 9))
#define MMC_CLK_DIV_MAX(clk) (clk / (1 << 1))
#else
#define MMC_CLK_DIV_MIN(clk) (clk / (1 << 8))
#define MMC_CLK_DIV_MAX CLKDEV_EMMC_DATA
#define MMC_CLK_DIV_MAX(clk) CLKDEV_EMMC_DATA
#endif
#define MMC_BUS_WIDTH_1 0
#define MMC_BUS_WIDTH_4 2