According to latest specification rev.0026, when HOST_MODE bit 0 (WMODE) is not set, HOST_MODE bit 8 (BUSWIDTH) is ignored. Clear HOST_MODE bit 8 in such case and align the code with Linux and avoid possible unforeseen issues.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Masahiro Yamada yamada.masahiro@socionext.com --- drivers/mmc/tmio-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/tmio-common.c b/drivers/mmc/tmio-common.c index 6e656e5a9b..01d8c2b925 100644 --- a/drivers/mmc/tmio-common.c +++ b/drivers/mmc/tmio-common.c @@ -707,7 +707,7 @@ static void tmio_sd_host_init(struct tmio_sd_priv *priv) */ if (priv->version >= 0x10) { if (priv->caps & TMIO_SD_CAP_64BIT) - tmio_sd_writel(priv, 0x100, TMIO_SD_HOST_MODE); + tmio_sd_writel(priv, 0x000, TMIO_SD_HOST_MODE); else tmio_sd_writel(priv, 0x101, TMIO_SD_HOST_MODE); } else {