LXR linux/arch/mips/mti-sead3/sead3-setup.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
   7 */
   8#include <linux/init.h>
   9#include <linux/of_platform.h>
  10#include <linux/of_fdt.h>
  11#include <linux/bootmem.h>
  12
  13#include <asm/mips-boards/generic.h>
  14
  15const char *get_system_type(void)
  16{
  17        return "MIPS SEAD3";
  18}
  19
  20void __init plat_mem_setup(void)
  21{
  22        /*
  23         * Load the builtin devicetree. This causes the chosen node to be
  24         * parsed resulting in our memory appearing
  25         */
  26        __dt_setup_arch(&__dtb_start);
  27}
  28
  29void __init device_tree_init(void)
  30{
  31        unsigned long base, size;
  32
  33        if (!initial_boot_params)
  34                return;
  35
  36        base = virt_to_phys((void *)initial_boot_params);
  37        size = be32_to_cpu(initial_boot_params->totalsize);
  38
  39        /* Before we do anything, lets reserve the dt blob */
  40        reserve_bootmem(base, size, BOOTMEM_DEFAULT);
  41
  42        unflatten_device_tree();
  43}
  44