1 files changed, 3 insertions, 4 deletions

diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 0c66a9fe63f5..1d7e5b8ade6a 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -59,8 +59,8 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 unsigned long total_memory;
 unsigned long total_lowmem;
 
-unsigned long ppc_memstart;
-unsigned long ppc_memoffset = PAGE_OFFSET;
+phys_addr_t memstart_addr;
+phys_addr_t lowmem_end_addr;
 
 int boot_mapsize;
 #ifdef CONFIG_PPC_PMAC
@@ -145,8 +145,7 @@ void __init MMU_init(void)
                 printk(KERN_WARNING "Only using first contiguous memory region");
         }
 
-        total_memory = lmb_end_of_DRAM();
-        total_lowmem = total_memory;
+        total_lowmem = total_memory = lmb_end_of_DRAM() - memstart_addr;
 
 #ifdef CONFIG_FSL_BOOKE
         /* Freescale Book-E parts expect lowmem to be mapped by fixed TLB