[MMC] sdhci: reset sdhci controller early
The specification states that the capabilities register might need a reset to
get correct values after boot up.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index e37c814..06dec74 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -1132,6 +1132,8 @@
goto release;
}
+ sdhci_reset(host, SDHCI_RESET_ALL);
+
version = readw(host->ioaddr + SDHCI_HOST_VERSION);
version = (version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT;
if (version != 0) {