1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2009 Lemote Inc.
4 * Author: Wu Zhangjin, wuzhangjin@gmail.com
5 */
6
7#include <linux/memblock.h>
8#include <asm/bootinfo.h>
9#include <asm/traps.h>
10#include <asm/smp-ops.h>
11#include <asm/cacheflush.h>
12#include <asm/fw/fw.h>
13
14#include <loongson.h>
15
16/* Loongson CPU address windows config space base address */
17unsigned long __maybe_unused _loongson_addrwincfg_base;
18
19static void __init mips_nmi_setup(void)
20{
21	void *base;
22	extern char except_vec_nmi[];
23
24	base = (void *)(CAC_BASE + 0x380);
25	memcpy(base, except_vec_nmi, 0x80);
26	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
27}
28
29void __init prom_init(void)
30{
31#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
32	_loongson_addrwincfg_base = (unsigned long)
33		ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE);
34#endif
35
36	fw_init_cmdline();
37	prom_init_machtype();
38	prom_init_env();
39
40	/* init base address of io space */
41	set_io_port_base((unsigned long)
42		ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE));
43	prom_init_memory();
44
45	/*init the uart base address */
46	prom_init_uart_base();
47	board_nmi_handler_setup = mips_nmi_setup;
48}
49
50void __init prom_free_prom_memory(void)
51{
52}
53