mtd: omap2: tune dma parameters

seems to give a small improvement

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 1a62f71..fc86521 100644 (file)
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -388,7 +388,8 @@ static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr,
                                                        dma_addr, 0, 0);
            omap_set_dma_transfer_params(info->dma_ch, OMAP_DMA_DATA_TYPE_S32,
                                        0x10, buf_len, OMAP_DMA_SYNC_FRAME,
-                                       OMAP24XX_DMA_GPMC, OMAP_DMA_DST_SYNC);
+                                       OMAP24XX_DMA_GPMC,
+                                       OMAP_DMA_DST_SYNC_PREFETCH);
        } else {
            omap_set_dma_src_params(info->dma_ch, 0, OMAP_DMA_AMODE_CONSTANT,
                                                info->phys_base, 0, 0);
@@ -971,8 +972,10 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
                } else {
                        omap_set_dma_dest_burst_mode(info->dma_ch,
                                        OMAP_DMA_DATA_BURST_16);
+                       omap_set_dma_dest_data_pack(info->dma_ch, 1);
                        omap_set_dma_src_burst_mode(info->dma_ch,
                                        OMAP_DMA_DATA_BURST_16);
+                       omap_set_dma_src_data_pack(info->dma_ch, 1);
 
                        info->nand.read_buf   = omap_read_buf_dma_pref;
                        info->nand.write_buf  = omap_write_buf_dma_pref;