+static int mmc_omap_get_dma_sync_dev(struct mmc_omap_host *host,
+ struct mmc_data *data)
+{
+ int sync_dev;
+
+ if (data->flags & MMC_DATA_WRITE)
+ sync_dev = host->dma_line_tx;
+ else
+ sync_dev = host->dma_line_rx;
+ return sync_dev;
+}
+
+static void mmc_omap_config_dma_params(struct mmc_omap_host *host,
+ struct mmc_data *data,
+ struct scatterlist *sgl)
+{
+ int blksz, nblk, dma_ch;
+
+ dma_ch = host->dma_ch;
+ if (data->flags & MMC_DATA_WRITE) {
+ omap_set_dma_dest_params(dma_ch, 0, OMAP_DMA_AMODE_CONSTANT,
+ (host->mapbase + OMAP_HSMMC_DATA), 0, 0);
+ omap_set_dma_src_params(dma_ch, 0, OMAP_DMA_AMODE_POST_INC,
+ sg_dma_address(sgl), 0, 0);
+ } else {
+ omap_set_dma_src_params(dma_ch, 0, OMAP_DMA_AMODE_CONSTANT,
+ (host->mapbase + OMAP_HSMMC_DATA), 0, 0);
+ omap_set_dma_dest_params(dma_ch, 0, OMAP_DMA_AMODE_POST_INC,
+ sg_dma_address(sgl), 0, 0);
+ }
+
+ blksz = host->data->blksz;
+ nblk = sg_dma_len(sgl) / blksz;
+
+ omap_set_dma_transfer_params(dma_ch, OMAP_DMA_DATA_TYPE_S32,
+ blksz / 4, nblk, OMAP_DMA_SYNC_FRAME,
+ mmc_omap_get_dma_sync_dev(host, data),
+ !(data->flags & MMC_DATA_WRITE));
+
+ omap_start_dma(dma_ch);
+}
+