diff --git a/drivers/net/pcnet.c b/drivers/net/pcnet.c
index 59241c9..e7d6c8d 100644
--- a/drivers/net/pcnet.c
+++ b/drivers/net/pcnet.c
@@ -332,7 +332,9 @@
 		addr = (unsigned long)memalign(ARCH_DMA_MINALIGN,
 					       sizeof(*lp->uc));
 		flush_dcache_range(addr, addr + sizeof(*lp->uc));
-		addr = UNCACHED_SDRAM(addr);
+		addr = (unsigned long)map_physmem(addr,
+				roundup(sizeof(*lp->uc), ARCH_DMA_MINALIGN),
+				MAP_NOCACHE);
 		lp->uc = (struct pcnet_uncached_priv *)addr;
 
 		addr = (unsigned long)memalign(ARCH_DMA_MINALIGN,