mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 06:33:41 +00:00
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
--- a/arch/mips/bcm47xx/prom.c
|
|
+++ b/arch/mips/bcm47xx/prom.c
|
|
@@ -1,6 +1,7 @@
|
|
/*
|
|
* Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org>
|
|
* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
|
|
+ * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
@@ -128,6 +129,7 @@ static __init void prom_init_mem(void)
|
|
{
|
|
unsigned long mem;
|
|
unsigned long max;
|
|
+ unsigned long off;
|
|
struct cpuinfo_mips *c = ¤t_cpu_data;
|
|
|
|
/* Figure out memory size by finding aliases.
|
|
@@ -145,15 +147,15 @@ static __init void prom_init_mem(void)
|
|
* max contains the biggest possible address supported by the platform.
|
|
* If the method wants to try something above we assume 128MB ram.
|
|
*/
|
|
- max = ((unsigned long)(prom_init) | ((128 << 20) - 1));
|
|
+ off = (unsigned long)prom_init;
|
|
+ max = off | ((128 << 20) - 1);
|
|
for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) {
|
|
- if (((unsigned long)(prom_init) + mem) > max) {
|
|
+ if ((off + mem) > max) {
|
|
mem = (128 << 20);
|
|
printk(KERN_DEBUG "assume 128MB RAM\n");
|
|
break;
|
|
}
|
|
- if (*(unsigned long *)((unsigned long)(prom_init) + mem) ==
|
|
- *(unsigned long *)(prom_init))
|
|
+ if (!memcmp(prom_init, prom_init + mem, 32))
|
|
break;
|
|
}
|
|
|