arch/mips/vr4181/osprey/prom.c

   1 /*
   2  * Copyright 2001 MontaVista Software Inc.
   3  * Author: jsun@mvista.com or jsun@junsun.net
   4  *
   5  * arch/mips/vr4181/osprey/prom.c
   6  *     prom code for osprey.
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  *
  13  */
  14 #include <linux/init.h>
  15 #include <linux/kernel.h>
  16 #include <linux/string.h>
  17 #include <linux/mm.h>
  18 #include <linux/bootmem.h>
  19 #include <asm/bootinfo.h>
  20 #include <asm/addrspace.h>
  21
  22 const char *get_system_type(void)
  23 {
  24         return "NEC_Vr41xx Osprey";
  25 }
  26
  27 /*
  28  * [jsun] right now we assume it is the nec debug monitor, which does
  29  * not pass any arguments.
  30  */
  31 void __init prom_init(void)
  32 {
  33         // cmdline is now set in default config
  34         // strcpy(arcs_cmdline, "ip=bootp ");
  35         // strcat(arcs_cmdline, "ether=46,0x03fe0300,eth0 ");
  36         // strcpy(arcs_cmdline, "ether=0,0x0300,eth0 "
  37         // strcat(arcs_cmdline, "video=vr4181fb:xres:240,yres:320,bpp:8 ");
  38
  39         mips_machgroup = MACH_GROUP_NEC_VR41XX;
  40         mips_machtype = MACH_NEC_OSPREY;
  41
  42         /* 16MB fixed */
  43         add_memory_region(0, 16 << 20, BOOT_MEM_RAM);
  44 }
  45
  46 unsigned long __init prom_free_prom_memory(void)
  47 {
  48         return 0;
  49 }