microblaze: Fix initrd support

Initrd/ramdisk support has been never validated.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 4ec137d13ad7..b38ae3acfeb4 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -404,10 +404,11 @@ asmlinkage void __init mmu_init(void)
 
 #if defined(CONFIG_BLK_DEV_INITRD)
         /* Remove the init RAM disk from the available memory. */
-/*      if (initrd_start) {
-                mem_pieces_remove(&phys_avail, __pa(initrd_start),
-                                  initrd_end - initrd_start, 1);
-        }*/
+        if (initrd_start) {
+                unsigned long size;
+                size = initrd_end - initrd_start;
+                memblock_reserve(virt_to_phys(initrd_start), size);
+        }
 #endif /* CONFIG_BLK_DEV_INITRD */
 
         /* Initialize the MMU hardware */