LXR linux/arch/mips/loongson64/setup.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
   4 * Author: Fuxin Zhang, zhangfx@lemote.com
   5 */
   6#include <linux/export.h>
   7#include <linux/init.h>
   8
   9#include <asm/wbflush.h>
  10#include <asm/bootinfo.h>
  11#include <linux/libfdt.h>
  12#include <linux/of_fdt.h>
  13
  14#include <asm/prom.h>
  15
  16#include <loongson.h>
  17
  18void *loongson_fdt_blob;
  19
  20static void wbflush_loongson(void)
  21{
  22        asm(".set\tpush\n\t"
  23            ".set\tnoreorder\n\t"
  24            ".set mips3\n\t"
  25            "sync\n\t"
  26            "nop\n\t"
  27            ".set\tpop\n\t"
  28            ".set mips0\n\t");
  29}
  30
  31void (*__wbflush)(void) = wbflush_loongson;
  32EXPORT_SYMBOL(__wbflush);
  33
  34void __init plat_mem_setup(void)
  35{
  36        if (loongson_fdt_blob)
  37                __dt_setup_arch(loongson_fdt_blob);
  38}
  39
  40void __init device_tree_init(void)
  41{
  42        if (!initial_boot_params)
  43                return;
  44
  45        unflatten_and_copy_device_tree();
  46}
  47