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-rw-r--r--drivers/mmc/mxsmmc.c4
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);
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