This patch modified the DMA threshold.
I didn't know exactly why need this threshold.
But if this value is 16, we didn't read SCR register for SD card.
Because in mmc_app_send_scr this values are used data.blocks=1 and data.blksz=8.
(data.blocks * data.blksz = 8...so return -EINVAL)
We didn't read the SCR register, then maybe should be set with wrong configuration.
Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/mmc/host/dw_mmc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0ed1d28..64e08e2 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -47,7 +47,7 @@
DW_MCI_CMD_ERROR_FLAGS | SDMMC_INT_HLE)
#define DW_MCI_SEND_STATUS 1
#define DW_MCI_RECV_STATUS 2
-#define DW_MCI_DMA_THRESHOLD 16
+#define DW_MCI_DMA_THRESHOLD 8
#ifdef CONFIG_MMC_DW_IDMAC
struct idmac_desc {
--
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