mmc: tmio: sdhi: Touch SCC only when UHS capable

Add check to avoid touching the SCC tuning registers in case the IP
doesn't support them or if the support isn't in place yet.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/drivers/mmc/renesas-sdhi.c b/drivers/mmc/renesas-sdhi.c
index f8dc5f5..7c92bd9 100644 (file)
--- a/drivers/mmc/renesas-sdhi.c
+++ b/drivers/mmc/renesas-sdhi.c
@@ -294,7 +294,8 @@ static int renesas_sdhi_set_ios(struct udevice *dev)
 #if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
        struct tmio_sd_priv *priv = dev_get_priv(dev);
 
-       renesas_sdhi_reset_tuning(priv);
+       if (priv->caps & TMIO_SD_CAP_RCAR_UHS)
+               renesas_sdhi_reset_tuning(priv);
 #endif
 
        return ret;
@@ -373,7 +374,7 @@ static int renesas_sdhi_probe(struct udevice *dev)
 
        ret = tmio_sd_probe(dev, quirks);
 #if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
-       if (!ret)
+       if (!ret && (priv->caps & TMIO_SD_CAP_RCAR_UHS))
                renesas_sdhi_reset_tuning(priv);
 #endif
        return ret;