From: Marek Vasut <marek.vasut+renesas@gmail.com>
Date: Sun, 28 Oct 2018 14:30:06 +0000 (+0100)
Subject: mmc: tmio: sdhi: Touch SCC only when UHS capable
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=52e17968836525fdb1e806d482093bd4cfd7b604;p=project%2Fbcm63xx%2Fu-boot.git

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 f8dc5f57ce..7c92bd92ad 100644
--- 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;