MIPS: Alchemy: change dbdma to accept physical memory addresses

DMA can only be done from physical addresses; move the "virt_to_phys"
source/destination buffer address translation from the dbdma queueing
functions (since the hardware can only DMA to/from physical addresses)
to their respective users.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

drivers/mmc/host/au1xmmc.c

@@ -651,10 +651,10 @@ static int au1xmmc_prepare_data(struct au1xmmc_host *host,
 
 			if (host->flags & HOST_F_XMIT) {
 				ret = au1xxx_dbdma_put_source(channel,
-					(void *)sg_virt(sg), len, flags);
+					sg_phys(sg), len, flags);
 			} else {
 				ret = au1xxx_dbdma_put_dest(channel,
-					(void *)sg_virt(sg), len, flags);
+					sg_phys(sg), len, flags);
 			}
 
 			if (!ret)