LXR linux/arch/mips/jz4740/prom.c

   1/*
   2 *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
   3 *  JZ4740 SoC prom code
   4 *
   5 *  This program is free software; you can redistribute it and/or modify it
   6 *  under  the terms of the GNU General  Public License as published by the
   7 *  Free Software Foundation;  either version 2 of the License, or (at your
   8 *  option) any later version.
   9 *
  10 *  You should have received a copy of the GNU General Public License along
  11 *  with this program; if not, write to the Free Software Foundation, Inc.,
  12 *  675 Mass Ave, Cambridge, MA 02139, USA.
  13 *
  14 */
  15
  16#include <linux/module.h>
  17#include <linux/kernel.h>
  18#include <linux/init.h>
  19#include <linux/string.h>
  20
  21#include <linux/serial_reg.h>
  22
  23#include <asm/bootinfo.h>
  24#include <asm/mach-jz4740/base.h>
  25
  26static __init void jz4740_init_cmdline(int argc, char *argv[])
  27{
  28        unsigned int count = COMMAND_LINE_SIZE - 1;
  29        int i;
  30        char *dst = &(arcs_cmdline[0]);
  31        char *src;
  32
  33        for (i = 1; i < argc && count; ++i) {
  34                src = argv[i];
  35                while (*src && count) {
  36                        *dst++ = *src++;
  37                        --count;
  38                }
  39                *dst++ = ' ';
  40        }
  41        if (i > 1)
  42                --dst;
  43
  44        *dst = 0;
  45}
  46
  47void __init prom_init(void)
  48{
  49        jz4740_init_cmdline((int)fw_arg0, (char **)fw_arg1);
  50        mips_machtype = MACH_INGENIC_JZ4740;
  51}
  52
  53void __init prom_free_prom_memory(void)
  54{
  55}
  56