arch/mips64/arc/init.c

   1 /* $Id: init.c,v 1.3 1999/11/19 23:29:05 ralf Exp $
   2  *
   3  * This file is subject to the terms and conditions of the GNU General Public
   4  * License.  See the file "COPYING" in the main directory of this archive
   5  * for more details.
   6  *
   7  * PROM library initialisation code.
   8  *
   9  * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
  10  */
  11 #include <linux/init.h>
  12 #include <linux/kernel.h>
  13
  14 #include <asm/sgialib.h>
  15
  16 #undef DEBUG_PROM_INIT
  17
  18 /* Master romvec interface. */
  19 struct linux_romvec *romvec;
  20 PSYSTEM_PARAMETER_BLOCK sgi_pblock;
  21 int prom_argc;
  22 LONG *_prom_argv, *_prom_envp;
  23 unsigned short prom_vers, prom_rev;
  24
  25 extern void prom_testtree(void);
  26
  27 int __init
  28 prom_init(int argc, char **argv, char **envp)
  29 {
  30         PSYSTEM_PARAMETER_BLOCK pb;
  31
  32         romvec = ROMVECTOR;
  33         pb = sgi_pblock = PROMBLOCK;
  34         prom_argc = argc;
  35         _prom_argv = (LONG *) argv;
  36         _prom_envp = (LONG *) envp;
  37
  38         if(pb->magic != 0x53435241) {
  39                 prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic);
  40                 while(1)
  41                         ;
  42         }
  43
  44         prom_init_cmdline();
  45
  46         prom_vers = pb->ver;
  47         prom_rev = pb->rev;
  48         prom_identify_arch();
  49         printk("PROMLIB: ARC firmware Version %d Revision %d\n",
  50                     prom_vers, prom_rev);
  51         prom_meminit();
  52
  53 #ifdef DEBUG_PROM_INIT
  54         {
  55                 prom_printf("Press a key to reboot\n");
  56                 (void) prom_getchar();
  57                 ArcEnterInteractiveMode();
  58         }
  59 #endif
  60         return 0;
  61 }