arch/mips/dec/prom/cmdline.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * cmdline.c: read the command line passed to us by the PROM.
   4  *
   5  * Copyright (C) 1998 Harald Koerfgen
   6  * Copyright (C) 2002, 2004  Maciej W. Rozycki
   7  */
   8 #include <linux/init.h>
   9 #include <linux/kernel.h>
  10 #include <linux/string.h>
  11 #include <linux/types.h>
  12
  13 #include <asm/bootinfo.h>
  14 #include <asm/dec/prom.h>
  15
  16 #undef PROM_DEBUG
  17
  18 void __init prom_init_cmdline(s32 argc, s32 *argv, u32 magic)
  19 {
  20         char *arg;
  21         int start_arg, i;
  22
  23         /*
  24          * collect args and prepare cmd_line
  25          */
  26         if (!prom_is_rex(magic))
  27                 start_arg = 1;
  28         else
  29                 start_arg = 2;
  30         for (i = start_arg; i < argc; i++) {
  31                 arg = (void *)(long)(argv[i]);
  32                 strcat(arcs_cmdline, arg);
  33                 if (i < (argc - 1))
  34                         strcat(arcs_cmdline, " ");
  35         }
  36
  37 #ifdef PROM_DEBUG
  38         printk("arcs_cmdline: %s\n", &(arcs_cmdline[0]));
  39 #endif
  40 }