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 <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> --- 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 { -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
