@@ -357,6 +357,7 @@ static void mxs_mmc_bc(struct mxs_mmc_host *host)
host->ssp_pio_words[1] = cmd0;
host->ssp_pio_words[2] = cmd1;
host->dma_dir = DMA_NONE;
+ host->slave_dirn = DMA_TRANS_NONE;
desc = mxs_mmc_prep_dma(host, 0);
if (!desc)
goto out;
@@ -396,6 +397,7 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host)
host->ssp_pio_words[1] = cmd0;
host->ssp_pio_words[2] = cmd1;
host->dma_dir = DMA_NONE;
+ host->slave_dirn = DMA_TRANS_NONE;
desc = mxs_mmc_prep_dma(host, 0);
if (!desc)
goto out;
@@ -514,6 +516,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host)
host->ssp_pio_words[1] = cmd0;
host->ssp_pio_words[2] = cmd1;
host->dma_dir = DMA_NONE;
+ host->slave_dirn = DMA_TRANS_NONE;
desc = mxs_mmc_prep_dma(host, 0);
if (!desc)
goto out;
The commit 05f5799 (mmc-host: move to dma_transfer_direction) left out the DMA_NONE, in turn breaks the driver as below. [ 0.650000] mxs-mmc mxs-mmc.0: initialized [ 0.650000] mxs-mmc mxs-mmc.1: initialized [ 0.690000] mxs-dma mxs-dma-apbh: maximum bytes for sg entry exceeded: -55906 7475 > 65280 [ 0.690000] mxs-mmc mxs-mmc.0: mxs_mmc_ac: failed to prep dma Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- drivers/mmc/host/mxs-mmc.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)