| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * PROM library initialisation code. |
| * |
| * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) |
| */ |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| |
| #include <asm/bootinfo.h> |
| #include <asm/sgialib.h> |
| |
| #undef DEBUG_PROM_INIT |
| |
| /* Master romvec interface. */ |
| struct linux_romvec *romvec; |
| int prom_argc; |
| LONG *_prom_argv, *_prom_envp; |
| |
| void __init prom_init(void) |
| { |
| PSYSTEM_PARAMETER_BLOCK pb = PROMBLOCK; |
| romvec = ROMVECTOR; |
| prom_argc = fw_arg0; |
| _prom_argv = (LONG *) fw_arg1; |
| _prom_envp = (LONG *) fw_arg2; |
| |
| if (pb->magic != 0x53435241) { |
| prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic); |
| while(1) |
| ; |
| } |
| |
| prom_init_cmdline(); |
| prom_identify_arch(); |
| printk(KERN_INFO "PROMLIB: ARC firmware Version %d Revision %d\n", |
| pb->ver, pb->rev); |
| prom_meminit(); |
| |
| #ifdef DEBUG_PROM_INIT |
| prom_printf("Press a key to reboot\n"); |
| prom_getchar(); |
| ArcEnterInteractiveMode(); |
| #endif |
| } |