mmc: sdhci: Add new quirks for SUPPORT_SINGLE
This patch defines a quirk to disable the block count
for single block transactions.
This is similar to Linux kernel commit d3fc5d71ac4d
("mmc: sdhci: add a quirk for single block transactions").
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index bf989a5..a80ad83 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -211,7 +211,7 @@
unsigned int stat = 0;
int ret = 0;
int trans_bytes = 0, is_aligned = 1;
- u32 mask, flags, mode;
+ u32 mask, flags, mode = 0;
unsigned int time = 0;
int mmc_dev = mmc_get_blk_desc(mmc)->devnum;
ulong start = get_timer(0);
@@ -273,10 +273,12 @@
/* Set Transfer mode regarding to data flag */
if (data) {
sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
- mode = SDHCI_TRNS_BLK_CNT_EN;
+
+ if (!(host->quirks & SDHCI_QUIRK_SUPPORT_SINGLE))
+ mode = SDHCI_TRNS_BLK_CNT_EN;
trans_bytes = data->blocks * data->blocksize;
if (data->blocks > 1)
- mode |= SDHCI_TRNS_MULTI;
+ mode |= SDHCI_TRNS_MULTI | SDHCI_TRNS_BLK_CNT_EN;
if (data->flags == MMC_DATA_READ)
mode |= SDHCI_TRNS_READ;