powerpc32: Limit memory to lowmem if !CONFIG_HIGHMEM.

This trims off the extra unusable memory from the lmb structure,
so we don't try to use it.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index aa6a5440cec..8dd1f7d0e23 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -154,10 +154,13 @@ void __init MMU_init(void)
          * in the fixed entries */
         adjust_total_lowmem();
 #endif /* CONFIG_FSL_BOOKE */
+
         if (total_lowmem > __max_low_memory) {
                 total_lowmem = __max_low_memory;
 #ifndef CONFIG_HIGHMEM
                 total_memory = total_lowmem;
+                lmb_enforce_memory_limit(total_lowmem);
+                lmb_analyze();
 #endif /* CONFIG_HIGHMEM */
         }