162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2009 Lemote Inc. 462306a36Sopenharmony_ci * Author: Wu Zhangjin, wuzhangjin@gmail.com 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <linux/memblock.h> 862306a36Sopenharmony_ci#include <asm/bootinfo.h> 962306a36Sopenharmony_ci#include <asm/traps.h> 1062306a36Sopenharmony_ci#include <asm/smp-ops.h> 1162306a36Sopenharmony_ci#include <asm/cacheflush.h> 1262306a36Sopenharmony_ci#include <asm/fw/fw.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci#include <loongson.h> 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci/* Loongson CPU address windows config space base address */ 1762306a36Sopenharmony_ciunsigned long __maybe_unused _loongson_addrwincfg_base; 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_cistatic void __init mips_nmi_setup(void) 2062306a36Sopenharmony_ci{ 2162306a36Sopenharmony_ci void *base; 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci base = (void *)(CAC_BASE + 0x380); 2462306a36Sopenharmony_ci memcpy(base, except_vec_nmi, 0x80); 2562306a36Sopenharmony_ci flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); 2662306a36Sopenharmony_ci} 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_civoid __init prom_init(void) 2962306a36Sopenharmony_ci{ 3062306a36Sopenharmony_ci#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG 3162306a36Sopenharmony_ci _loongson_addrwincfg_base = (unsigned long) 3262306a36Sopenharmony_ci ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE); 3362306a36Sopenharmony_ci#endif 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci fw_init_cmdline(); 3662306a36Sopenharmony_ci prom_init_machtype(); 3762306a36Sopenharmony_ci prom_init_env(); 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci /* init base address of io space */ 4062306a36Sopenharmony_ci set_io_port_base((unsigned long) 4162306a36Sopenharmony_ci ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE)); 4262306a36Sopenharmony_ci prom_init_memory(); 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ci /*init the uart base address */ 4562306a36Sopenharmony_ci prom_init_uart_base(); 4662306a36Sopenharmony_ci board_nmi_handler_setup = mips_nmi_setup; 4762306a36Sopenharmony_ci} 48