5b97f65136
Some bootloaders (e.g. PSPBoot on AC49x) have a load-offset, this frees that memory region so it is usable for Linux. Signed-off-by: Daniel Golle <dgolle@allnet.de> Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34383
16 lines
461 B
Diff
16 lines
461 B
Diff
--- a/arch/mips/ar7/memory.c
|
|
+++ b/arch/mips/ar7/memory.c
|
|
@@ -67,5 +67,11 @@ 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);
|
|
}
|