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