arch/mips/kernel/mips_machine.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
   4  */
   5 #include <linux/mm.h>
   6 #include <linux/string.h>
   7 #include <linux/slab.h>
   8
   9 #include <asm/mips_machine.h>
  10 #include <asm/prom.h>
  11
  12 static struct mips_machine *mips_machine __initdata;
  13
  14 #define for_each_machine(mach) \
  15         for ((mach) = (struct mips_machine *)&__mips_machines_start; \
  16              (mach) && \
  17              (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \
  18              (mach)++)
  19
  20 __init int mips_machtype_setup(char *id)
  21 {
  22         struct mips_machine *mach;
  23
  24         for_each_machine(mach) {
  25                 if (mach->mach_id == NULL)
  26                         continue;
  27
  28                 if (strcmp(mach->mach_id, id) == 0) {
  29                         mips_machtype = mach->mach_type;
  30                         return 0;
  31                 }
  32         }
  33
  34         pr_err("MIPS: no machine found for id '%s', supported machines:\n", id);
  35         pr_err("%-24s %s\n", "id", "name");
  36         for_each_machine(mach)
  37                 pr_err("%-24s %s\n", mach->mach_id, mach->mach_name);
  38
  39         return 1;
  40 }
  41
  42 __setup("machtype=", mips_machtype_setup);
  43
  44 __init void mips_machine_setup(void)
  45 {
  46         struct mips_machine *mach;
  47
  48         for_each_machine(mach) {
  49                 if (mips_machtype == mach->mach_type) {
  50                         mips_machine = mach;
  51                         break;
  52                 }
  53         }
  54
  55         if (!mips_machine)
  56                 return;
  57
  58         mips_set_machine_name(mips_machine->mach_name);
  59
  60         if (mips_machine->mach_setup)
  61                 mips_machine->mach_setup();
  62 }