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mmc: tmio: sdhi: Filter out HS400 on certain SoCs

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Filter out HS400 support on SoCs where HS400 is not supported yet.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Marek Vasut 2018-06-13 08:02:55 +02:00 committed by Marek Vasut
parent ed427dab2e
commit d34bd2deda
1 changed files with 20 additions and 0 deletions
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20
drivers/mmc/renesas-sdhi.c
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@ -363,6 +363,23 @@ static ulong renesas_sdhi_clk_get_rate(struct tmio_sd_priv *priv)
return clk_get_rate(&priv->clk);
}
static void renesas_sdhi_filter_caps(struct udevice *dev)
{
struct tmio_sd_plat *plat = dev_get_platdata(dev);
struct tmio_sd_priv *priv = dev_get_priv(dev);
if (!(priv->caps & TMIO_SD_CAP_RCAR_GEN3))
return;
/* HS400 is not supported on H3 ES1.x and M3W ES1.0,ES1.1 */
if (((rmobile_get_cpu_type() == RMOBILE_CPU_TYPE_R8A7795) &&
(rmobile_get_cpu_rev_integer() <= 1)) ||
((rmobile_get_cpu_type() == RMOBILE_CPU_TYPE_R8A7796) &&
(rmobile_get_cpu_rev_integer() == 1) &&
(rmobile_get_cpu_rev_fraction() <= 1)))
plat->cfg.host_caps &= ~MMC_MODE_HS400;
}
static int renesas_sdhi_probe(struct udevice *dev)
{
struct tmio_sd_priv *priv = dev_get_priv(dev);
@ -407,6 +424,9 @@ static int renesas_sdhi_probe(struct udevice *dev)
}
ret = tmio_sd_probe(dev, quirks);
renesas_sdhi_filter_caps(dev);
#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
if (!ret && (priv->caps & TMIO_SD_CAP_RCAR_UHS))
renesas_sdhi_reset_tuning(priv);