openwrtv4/target/linux/ar7/patches-4.1/200-free-mem-below-kernel-offset.patch
Jonas Gorski 7f3182da16 ar7: add linux 4.1 support
Compile tested only.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 46186
2015-07-05 21:32:44 +00:00

15 lines
461 B
Diff

--- a/arch/mips/ar7/memory.c
+++ b/arch/mips/ar7/memory.c
@@ -66,5 +66,11 @@ void __init prom_meminit(void)
void __init prom_free_prom_memory(void)
{
- /* Nothing to free */
+ /* adapted from arch/mips/txx9/generic/setup.c */
+ unsigned long saddr = PHYS_OFFSET + PAGE_SIZE;
+ unsigned long eaddr = __pa_symbol(&_text);
+
+ /* free memory between prom-record and kernel _text base */
+ if (saddr < eaddr)
+ free_init_pages("prom memory", saddr, eaddr);
}