In host-control register, DMA select bit field is present.
BUt in sdhci.c, didn't select for DMA.
if set CONFIG_MMC_SDMA, we need to set SDMA-select bit.
Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
drivers/mmc/sdhci.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 9329874..15b4686 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -82,6 +82,13 @@ static int sdhci_transfer_data(struct sdhci_host *host,
struct mmc_data *data,
unsigned int start_addr)
{
unsigned int stat, rdy, mask, timeout, block = 0;
+#ifdef CONFIG_MMC_SDMA
+ unsigned char ctrl;
+ ctrl = sdhci_readl(host, SDHCI_HOST_CONTROL);
+ ctrl &= ~SDHCI_CTRL_DMA_MASK;
+ ctrl |= SDHCI_CTRL_SDMA;
+ sdhci_writel(host, ctrl, SDHCI_HOST_CONTROL);
+#endif
timeout = 1000000;
rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL;
--
1.7.4.1
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