57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin, wuzhangjin@gmail.com
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*/
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#include <linux/memblock.h>
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#include <asm/bootinfo.h>
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#include <asm/traps.h>
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#include <asm/smp-ops.h>
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#include <asm/cacheflush.h>
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#include <loongson.h>
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/* Loongson CPU address windows config space base address */
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unsigned long __maybe_unused _loongson_addrwincfg_base;
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static void __init mips_nmi_setup(void)
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{
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void *base;
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extern char except_vec_nmi;
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base = (void *)(CAC_BASE + 0x380);
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memcpy(base, &except_vec_nmi, 0x80);
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flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
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}
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void __init prom_init(void)
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{
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#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
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_loongson_addrwincfg_base = (unsigned long)
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ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE);
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#endif
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prom_init_cmdline();
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prom_init_env();
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/* init base address of io space */
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set_io_port_base((unsigned long)
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ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE));
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#ifdef CONFIG_NUMA
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prom_init_numa_memory();
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#else
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prom_init_memory();
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#endif
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/*init the uart base address */
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prom_init_uart_base();
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register_smp_ops(&loongson3_smp_ops);
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board_nmi_handler_setup = mips_nmi_setup;
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}
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void __init prom_free_prom_memory(void)
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{
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}
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