arch/mips/kernel/mips_machine.c

   1 /*
   2  *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
   3  *
   4  *  This program is free software; you can redistribute it and/or modify it
   5  *  under the terms of the GNU General Public License version 2 as published
   6  *  by the Free Software Foundation.
   7  *
   8  */
   9 #include <linux/mm.h>
  10 #include <linux/string.h>
  11 #include <linux/slab.h>
  12
  13 #include <asm/mips_machine.h>
  14 #include <asm/prom.h>
  15
  16 static struct mips_machine *mips_machine __initdata;
  17
  18 #define for_each_machine(mach) \
  19         for ((mach) = (struct mips_machine *)&__mips_machines_start; \
  20              (mach) && \
  21              (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
  22              (mach)++)
  23
  24 __init int mips_machtype_setup(char *id)
  25 {
  26         struct mips_machine *mach;
  27
  28         for_each_machine(mach) {
  29                 if (mach->mach_id == NULL)
  30                         continue;
  31
  32                 if (strcmp(mach->mach_id, id) == 0) {
  33                         mips_machtype = mach->mach_type;
  34                         return 0;
  35                 }
  36         }
  37
  38         pr_err("MIPS: no machine found for id '%s', supported machines:\n", id);
  39         pr_err("%-24s %s\n", "id", "name");
  40         for_each_machine(mach)
  41                 pr_err("%-24s %s\n", mach->mach_id, mach->mach_name);
  42
  43         return 1;
  44 }
  45
  46 __setup("machtype=", mips_machtype_setup);
  47
  48 __init void mips_machine_setup(void)
  49 {
  50         struct mips_machine *mach;
  51
  52         for_each_machine(mach) {
  53                 if (mips_machtype == mach->mach_type) {
  54                         mips_machine = mach;
  55                         break;
  56                 }
  57         }
  58
  59         if (!mips_machine)
  60                 return;
  61
  62         mips_set_machine_name(mips_machine->mach_name);
  63
  64         if (mips_machine->mach_setup)
  65                 mips_machine->mach_setup();
  66 }