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 */ |
17 | unsigned long __maybe_unused _loongson_addrwincfg_base; |
18 | |
19 | static void __init mips_nmi_setup(void) |
20 | { |
21 | void *base; |
22 | |
23 | base = (void *)(CAC_BASE + 0x380); |
24 | memcpy(base, except_vec_nmi, 0x80); |
25 | flush_icache_range(start: (unsigned long)base, end: (unsigned long)base + 0x80); |
26 | } |
27 | |
28 | void __init prom_init(void) |
29 | { |
30 | #ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG |
31 | _loongson_addrwincfg_base = (unsigned long) |
32 | ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE); |
33 | #endif |
34 | |
35 | fw_init_cmdline(); |
36 | prom_init_machtype(); |
37 | prom_init_env(); |
38 | |
39 | /* init base address of io space */ |
40 | set_io_port_base((unsigned long) |
41 | ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE)); |
42 | prom_init_memory(); |
43 | |
44 | /*init the uart base address */ |
45 | prom_init_uart_base(); |
46 | board_nmi_handler_setup = mips_nmi_setup; |
47 | } |
48 | |