target/linux/ramips/patches-3.10/999-memory-detect.patch

   1 --- a/arch/mips/ralink/of.c
   2 +++ b/arch/mips/ralink/of.c
   3 @@ -80,6 +80,16 @@ void __init device_tree_init(void)
   4  }
   5
   6  extern struct boot_param_header __image_dtb;
   7 +static int memory_dtb;
   8 +
   9 +static int __init early_init_dt_find_memory(unsigned long node, const char *uname,
  10 +                                    int depth, void *data)
  11 +{
  12 +       if (depth == 1 && !strcmp(uname, "memory@0"))
  13 +               memory_dtb = 1;
  14 +
  15 +       return 0;
  16 +}
  17
  18  void __init plat_mem_setup(void)
  19  {
  20 @@ -90,8 +100,10 @@ void __init plat_mem_setup(void)
  21          * parsed resulting in our memory appearing
  22          */
  23         __dt_setup_arch(&__image_dtb);
  24 -
  25 -       if (soc_info.mem_size)
  26 +       of_scan_flat_dt(early_init_dt_find_memory, NULL);
  27 +       if (memory_dtb)
  28 +               of_scan_flat_dt(early_init_dt_scan_memory, NULL);
  29 +       else if (soc_info.mem_size)
  30                 add_memory_region(soc_info.mem_base, soc_info.mem_size * SZ_1M,
  31                                   BOOT_MEM_RAM);
  32         else