microblaze: mm: Use ZONE_DMA instead of ZONE_NORMAL

We should use ZONE_DMA because all address space is dma-able.

Signed-off-by: Michal Simek <monstr@monstr.eu>

2 files changed, 4 insertions, 5 deletions

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index c8d6efb99db..8e9da3d4281 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -27,6 +27,9 @@ config SWAP
 config RWSEM_GENERIC_SPINLOCK
         def_bool y
 
+config ZONE_DMA
+        def_bool y
+
 config RWSEM_XCHGADD_ALGORITHM
         bool
 
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 565d193c7eb..a72f42498c2 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -58,11 +58,7 @@ static void __init paging_init(void)
         /* Clean every zones */
         memset(zones_size, 0, sizeof(zones_size));
 
-        /*
-         * old: we can DMA to/from any address.put all page into ZONE_DMA
-         * We use only ZONE_NORMAL
-         */
-        zones_size[ZONE_NORMAL] = max_mapnr;
+        zones_size[ZONE_DMA] = max_mapnr;
 
         free_area_init(zones_size);
 }