diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c
index de0c1e397c992651028fdc9d77fb4ef840529691..57e5b608fa1a9bed17d07c1d5967ad2278500bb2 100644
--- a/arch/powerpc/platforms/embedded6xx/wii.c
+++ b/arch/powerpc/platforms/embedded6xx/wii.c
@@ -97,6 +97,9 @@ void __init wii_memory_fixups(void)
 
 	/* reserve the hole */
 	lmb_reserve(wii_hole_start, wii_hole_size);
+
+	/* allow ioremapping the address space in the hole */
+	__allow_ioremap_reserved = 1;
 }
 
 unsigned long __init wii_mmu_mapin_mem2(unsigned long top)