LXR linux/arch/mips/kernel/mips

   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
  15static struct mips_machine *mips_machine __initdata;
  16static char *mips_machine_name = "Unknown";
  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 void mips_set_machine_name(const char *name)
  25{
  26        char *p;
  27
  28        if (name == NULL)
  29                return;
  30
  31        p = kstrdup(name, GFP_KERNEL);
  32        if (!p)
  33                pr_err("MIPS: no memory for machine_name\n");
  34
  35        mips_machine_name = p;
  36}
  37
  38char *mips_get_machine_name(void)
  39{
  40        return mips_machine_name;
  41}
  42
  43__init int mips_machtype_setup(char *id)
  44{
  45        struct mips_machine *mach;
  46
  47        for_each_machine(mach) {
  48                if (mach->mach_id == NULL)
  49                        continue;
  50
  51                if (strcmp(mach->mach_id, id) == 0) {
  52                        mips_machtype = mach->mach_type;
  53                        return 0;
  54                }
  55        }
  56
  57        pr_err("MIPS: no machine found for id '%s', supported machines:\n", id);
  58        pr_err("%-24s %s\n", "id", "name");
  59        for_each_machine(mach)
  60                pr_err("%-24s %s\n", mach->mach_id, mach->mach_name);
  61
  62        return 1;
  63}
  64
  65__setup("machtype=", mips_machtype_setup);
  66
  67__init void mips_machine_setup(void)
  68{
  69        struct mips_machine *mach;
  70
  71        for_each_machine(mach) {
  72                if (mips_machtype == mach->mach_type) {
  73                        mips_machine = mach;
  74                        break;
  75                }
  76        }
  77
  78        if (!mips_machine)
  79                return;
  80
  81        mips_set_machine_name(mips_machine->mach_name);
  82        pr_info("MIPS: machine is %s\n", mips_machine_name);
  83
  84        if (mips_machine->mach_setup)
  85                mips_machine->mach_setup();
  86}
  87