1 files changed, 7 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/fixmap.h
index 90f604bbcd19..4508b322f2cd 100644
--- a/arch/powerpc/include/asm/fixmap.h
+++ b/arch/powerpc/include/asm/fixmap.h
@@ -51,6 +51,13 @@ enum fixed_addresses {
         FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
         FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
 #endif
+#ifdef CONFIG_PPC_8xx
+        /* For IMMR we need an aligned 512K area */
+#define FIX_IMMR_SIZE   (512 * 1024 / PAGE_SIZE)
+        FIX_IMMR_START,
+        FIX_IMMR_BASE = __ALIGN_MASK(FIX_IMMR_START, FIX_IMMR_SIZE - 1) - 1 +
+                       FIX_IMMR_SIZE,
+#endif
         /* FIX_PCIE_MCFG, */
         __end_of_fixed_addresses
 };