arch/mips/netlogic/xlp/of.c

   1 #include <linux/bootmem.h>
   2 #include <linux/init.h>
   3 #include <linux/io.h>
   4 #include <linux/of_fdt.h>
   5 #include <asm/byteorder.h>
   6
   7 static int __init reserve_mem_mach(unsigned long addr, unsigned long size)
   8 {
   9         return reserve_bootmem(addr, size, BOOTMEM_DEFAULT);
  10 }
  11
  12 void __init free_mem_mach(unsigned long addr, unsigned long size)
  13 {
  14         return free_bootmem(addr, size);
  15 }
  16
  17 void __init device_tree_init(void)
  18 {
  19         unsigned long base, size;
  20
  21         if (!initial_boot_params)
  22                 return;
  23
  24         base = virt_to_phys((void *)initial_boot_params);
  25         size = be32_to_cpu(initial_boot_params->totalsize);
  26
  27         /* Before we do anything, lets reserve the dt blob */
  28         reserve_mem_mach(base, size);
  29
  30         unflatten_device_tree();
  31
  32         /* free the space reserved for the dt blob */
  33         free_mem_mach(base, size);
  34 }