diff options
Diffstat (limited to 'drivers/mmc/mxsmmc.c')
| -rw-r--r-- | drivers/mmc/mxsmmc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index 9a98c6b85b..c80b41b192 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -119,6 +119,10 @@ static int mxsmmc_send_cmd_dma(struct mxsmmc_priv *priv, struct mmc_data *data) (uint32_t)(priv->desc->cmd.address + cache_data_count)); } + /* Invalidate the area, so no writeback into the RAM races with DMA */ + invalidate_dcache_range((uint32_t)priv->desc->cmd.address, + (uint32_t)(priv->desc->cmd.address + cache_data_count)); + priv->desc->cmd.data |= MXS_DMA_DESC_IRQ | MXS_DMA_DESC_DEC_SEM | (data_count << MXS_DMA_DESC_BYTES_OFFSET); |