target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch

   1 --- a/arch/mips/ar7/memory.c
   2 +++ b/arch/mips/ar7/memory.c
   3 @@ -66,5 +66,11 @@ void __init prom_meminit(void)
   4
   5  void __init prom_free_prom_memory(void)
   6  {
   7 -       /* Nothing to free */
   8 +       /* adapted from arch/mips/txx9/generic/setup.c */
   9 +       unsigned long saddr = PHYS_OFFSET + PAGE_SIZE;
  10 +       unsigned long eaddr = __pa_symbol(&_text);
  11 +
  12 +       /* free memory between prom-record and kernel _text base */
  13 +       if (saddr < eaddr)
  14 +               free_init_pages("prom memory", saddr, eaddr);
  15  }