mirror of https://gitee.com/openkylin/linux.git
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
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/*
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* Copyright 2001 MontaVista Software Inc.
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* Author: jsun@mvista.com or jsun@junsun.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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#include <linux/bootmem.h>
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#include <asm/addrspace.h>
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#include <asm/bootinfo.h>
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#include <asm/pmon.h>
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struct callvectors* debug_vectors;
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extern unsigned long gt64120_base;
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const char *get_system_type(void)
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{
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return "Momentum Ocelot";
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}
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/* [jsun@junsun.net] PMON passes arguments in C main() style */
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void __init prom_init(void)
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{
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int argc = fw_arg0;
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char **arg = (char **) fw_arg1;
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char **env = (char **) fw_arg2;
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struct callvectors *cv = (struct callvectors *) fw_arg3;
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uint32_t tmp;
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int i;
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/* save the PROM vectors for debugging use */
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debug_vectors = cv;
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/* arg[0] is "g", the rest is boot parameters */
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arcs_cmdline[0] = '\0';
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for (i = 1; i < argc; i++) {
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if (strlen(arcs_cmdline) + strlen(arg[i] + 1)
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>= sizeof(arcs_cmdline))
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break;
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strcat(arcs_cmdline, arg[i]);
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strcat(arcs_cmdline, " ");
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}
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mips_machgroup = MACH_GROUP_MOMENCO;
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mips_machtype = MACH_MOMENCO_OCELOT;
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while (*env) {
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if (strncmp("gtbase", *env, 6) == 0) {
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gt64120_base = simple_strtol(*env + strlen("gtbase="),
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NULL, 16);
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break;
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}
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*env++;
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}
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debug_vectors->printf("Booting Linux kernel...\n");
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/* All the boards have at least 64MiB. If there's more, we
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detect and register it later */
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add_memory_region(0, 64 << 20, BOOT_MEM_RAM);
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}
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unsigned long __init prom_free_prom_memory(void)
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{
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return 0;
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}
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