mtd: nand: mxs invalidate dcache before DMA read

[karo-tx-uboot.git] / drivers / mtd / nand / mxs_nand.c

diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
index fd008f49fec70a477618f7fd28909b013efa5441..3fdcebd5d97fa5da3a57d194d503c67da2a39588 100644 (file)
--- a/drivers/mtd/nand/mxs_nand.c
+++ b/drivers/mtd/nand/mxs_nand.c
@@ -617,6 +617,10 @@ static void mxs_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int length)
 
        mxs_dma_desc_append(channel, d);
 #endif
+
+       /* Invalidate caches */
+       mxs_nand_inval_data_buf(nand_info);
+
        /* Execute the DMA chain. */
        ret = mxs_dma_go(channel);
        if (ret) {
@@ -795,6 +799,9 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand,
 
        mxs_dma_desc_append(channel, d);
 
+       /* Invalidate caches */
+       mxs_nand_inval_data_buf(nand_info);
+
        /* Execute the DMA chain. */
        ret = mxs_dma_go(channel);
        if (ret) {