+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE))
+ continue;
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_RUN | DMA_DONE | DMA_ERR);
+ bfin_write_MDMA_D0_CONFIG(0);
+ bfin_write_MDMA_S0_CONFIG(0);
+}
+/* We should do a dcache invalidate on the destination after the dma, but since
+ * we lack such hardware capability, we'll flush/invalidate the destination
+ * before the dma and bank on the idea that u-boot is single threaded.
+ */
+void *dma_memcpy(void *dst, const void *src, size_t count)
+{
+ if (dcache_status()) {
+ blackfin_dcache_flush_range(src, src + count);
+ blackfin_dcache_flush_invalidate_range(dst, dst + count);
+ }