diff --git a/arch/ppc64/mm/init.c b/arch/ppc64/mm/init.c
index a14ab87df49114dbc9d02566b5014d4e91d0b939..c2157c9c3acbfc585f1cf3a729a28be861564259 100644
--- a/arch/ppc64/mm/init.c
+++ b/arch/ppc64/mm/init.c
@@ -554,12 +554,12 @@ void __init do_init_bootmem(void)
 	 * present.
 	 */
 	for (i=0; i < lmb.memory.cnt; i++)
-		free_bootmem(lmb_start_pfn(&lmb.memory, i),
+		free_bootmem(lmb.memory.region[i].base,
 			     lmb_size_bytes(&lmb.memory, i));
 
 	/* reserve the sections we're already using */
 	for (i=0; i < lmb.reserved.cnt; i++)
-		reserve_bootmem(lmb_start_pfn(&lmb.reserved, i),
+		reserve_bootmem(lmb.reserved.region[i].base,
 				lmb_size_bytes(&lmb.reserved, i));
 
 	for (i=0; i < lmb.memory.cnt; i++)