From: Alim Akhtar <alim.akh...@samsung.com>
Hardware locked error set when the dw_mmc controller cannot load a
command issued by software. When software sets the start_cmd bit in the
CMD register, the controller tries to load the command. If the command
buffer is already filled with a command, this error is raised. Currently
driver does not handle HLE interrupt, which results in a system hang.
HLE can be simulated by quickly inserting and removing sd card in card
slot (30 ~ 40 times in say 20 secs)
Reviewed-by: Doug Anderson <diand...@chromium.org>
Signed-off-by: Alim Akhtar <alim.akh...@samsung.com>
---
drivers/mmc/host/dw_mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0a6a512..24b4a52 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -44,7 +44,7 @@
SDMMC_INT_HTO | SDMMC_INT_SBE | \
SDMMC_INT_EBE)
#define DW_MCI_CMD_ERROR_FLAGS (SDMMC_INT_RTO | SDMMC_INT_RCRC | \
- SDMMC_INT_RESP_ERR)
+ SDMMC_INT_RESP_ERR | SDMMC_INT_HLE)
#define DW_MCI_ERROR_FLAGS (DW_MCI_DATA_ERROR_FLAGS | \
DW_MCI_CMD_ERROR_FLAGS | SDMMC_INT_HLE)
#define DW_MCI_SEND_STATUS 1
--
1.7.12.4
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