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