From: Marek Vasut <marek.vasut@gmail.com>
Date: Fri, 31 May 2019 13:22:44 +0000 (+0200)
Subject: mmc: Avoid HS400 mode when accessing boot partitions
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=72119aa14a1c81b5dd2996fc86c80f8d0e2c456d;p=project%2Fbcm63xx%2Fu-boot.git

mmc: Avoid HS400 mode when accessing boot partitions

U-Boot code currently only applies this restriction to HS200 mode,
extend this to HS400 mode as well.

Currently U-Boot code not support accessing boot partition in HS200/400
mode. This needs more check.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jean-Jacques Hiblot <jjhiblot@ti.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 456c1b4cc9..71b52c6cf2 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -905,14 +905,14 @@ static int mmc_set_capacity(struct mmc *mmc, int part_num)
 	return 0;
 }
 
-#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT)
+#if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) || CONFIG_IS_ENABLED(MMC_HS400_SUPPORT)
 static int mmc_boot_part_access_chk(struct mmc *mmc, unsigned int part_num)
 {
 	int forbidden = 0;
 	bool change = false;
 
 	if (part_num & PART_ACCESS_MASK)
-		forbidden = MMC_CAP(MMC_HS_200);
+		forbidden = MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_HS_400);
 
 	if (MMC_CAP(mmc->selected_mode) & forbidden) {
 		pr_debug("selected mode (%s) is forbidden for part %d\n",