From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 2 May 2013 13:53:51 +0000 (+0200)
Subject: microblaze: Fix initrd support
X-Git-Tag: firefly_0821_release~3680^2~501^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5eec2f0228e40318e452d83a5e91052986437d3b;p=firefly-linux-kernel-4.4.55.git

microblaze: Fix initrd support

Initrd/ramdisk support has been never validated.

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

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 */