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