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From: Michal Simek <michal.simek@xilinx.com>
Subject: [LINUX PATCH 3/3] microblaze: Fix initrd support
Initrd/ramdisk support has been never validated.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
arch/microblaze/mm/init.c | 20 ++++++--------------
1 file changed, 6 insertions(+), 14 deletions(-)
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 09affec..f394ad8 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -258,16 +258,7 @@ static void free_init_pages(char *what, unsigned long start, unsigned long end)
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- int pages = 0;
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- pages++;
- }
- printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n",
- (int)(pages * (PAGE_SIZE / 1024)));
+ free_init_pages("initrd memory", start, end);
}
#endif
@@ -438,10 +429,11 @@ 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 */
--
1.8.2.1
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