openwrtv3/target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch
Michael Büsch c97341b761 bcm47xx: Add basic 2.6.32 support.
SVN-Revision: 19062
2010-01-07 16:06:05 +00:00

17 lines
433 B
Diff

--- a/arch/mips/bcm47xx/prom.c
+++ b/arch/mips/bcm47xx/prom.c
@@ -141,6 +141,14 @@ static __init void prom_init_mem(void)
break;
}
+ /* Ignoring the last page when ddr size is 128M. Cached
+ * accesses to last page is causing the processor to prefetch
+ * using address above 128M stepping out of the ddr address
+ * space.
+ */
+ if (mem == 0x8000000)
+ mem -= 0x1000;
+
add_memory_region(0, mem, BOOT_MEM_RAM);
}