The former implement, dw_mmc will push and pop the redundant data to
FIFO, we should transfer it according to the real size.
Signed-off-by: Ziyuan Xu <xzy...@rock-chips.com>
---
drivers/mmc/dw_mmc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index 2cf7bae..38d4a64 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -126,6 +126,7 @@ static int dwmci_data_transfer(struct dwmci_host *host,
struct mmc_data *data)
len = dwmci_readl(host, DWMCI_STATUS);
len = (len >> DWMCI_FIFO_SHIFT) &
DWMCI_FIFO_MASK;
+ len = min(size, len);
for (i = 0; i < len; i++)
*buf++ =
dwmci_readl(host, DWMCI_DATA);
@@ -139,6 +140,7 @@ static int dwmci_data_transfer(struct dwmci_host *host,
struct mmc_data *data)
len = fifo_depth - ((len >>
DWMCI_FIFO_SHIFT) &
DWMCI_FIFO_MASK);
+ len = min(size, len);
for (i = 0; i < len; i++)
dwmci_writel(host, DWMCI_DATA,
*buf++);
--
1.9.1
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