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>
diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index d295dc5..c8649df 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -651,10 +651,10 @@
 
 			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)