[U-Boot] [PATCH 2/2] cmd: mmc: Invalidate MMC block cache after init

Marek Vasut marek.vasut at gmail.com
Thu Jan 3 21:09:44 UTC 2019


Make sure the block cache is cleared for the MMC device after it was
reinitialized to avoid having any stale data in the cache, like e.g.
partition tables or such.

Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
Cc: Jaehoon Chung <jh80.chung at samsung.com>
---
 cmd/mmc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cmd/mmc.c b/cmd/mmc.c
index ca8f982f53..9951315f91 100644
--- a/cmd/mmc.c
+++ b/cmd/mmc.c
@@ -108,6 +108,12 @@ static struct mmc *init_mmc_device(int dev, bool force_init)
 		mmc->has_init = 0;
 	if (mmc_init(mmc))
 		return NULL;
+
+#ifdef CONFIG_BLOCK_CACHE
+	struct blk_desc *bd = mmc_get_blk_desc(mmc);
+	blkcache_invalidate(bd->if_type, bd->devnum);
+#endif
+
 	return mmc;
 }
 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-- 
2.19.2



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