target/linux/brcm47xx/patches-2.6.30/170-128MB_ram_bugfix.patch

   1 --- a/arch/mips/bcm47xx/prom.c
   2 +++ b/arch/mips/bcm47xx/prom.c
   3 @@ -141,6 +141,14 @@ static __init void prom_init_mem(void)
   4                         break;
   5         }
   6
   7 +       /* Ignoring the last page when ddr size is 128M. Cached
   8 +        * accesses to last page is causing the processor to prefetch
   9 +        * using address above 128M stepping out of the ddr address
  10 +        * space.
  11 +        */
  12 +       if (mem == 0x8000000)
  13 +               mem -= 0x1000;
  14 +
  15         add_memory_region(0, mem, BOOT_MEM_RAM);
  16  }
  17