Hi Alim, On 10/03/2013 06:18 PM, alim akhtar wrote: > 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. When SDMMC_INT_HLE is set into CMD_ERROR_FLAGS, then could driver handle the HLE interrupt?
Best Regards, Jaehoon Chung > > 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
