LXR uboot/cpu/leon3/cpu.c

   1/* CPU specific code for the LEON3 CPU
   2 *
   3 * (C) Copyright 2007
   4 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
   5 *
   6 * See file CREDITS for list of people who contributed to this
   7 * project.
   8 *
   9 * This program is free software; you can redistribute it and/or
  10 * modify it under the terms of the GNU General Public License as
  11 * published by the Free Software Foundation; either version 2 of
  12 * the License, or (at your option) any later version.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22 * MA 02111-1307 USA
  23 */
  24
  25#include <common.h>
  26#include <watchdog.h>
  27#include <command.h>
  28#include <netdev.h>
  29
  30#include <asm/io.h>
  31#include <asm/processor.h>
  32
  33DECLARE_GLOBAL_DATA_PTR;
  34
  35extern void _reset_reloc(void);
  36
  37int checkcpu(void)
  38{
  39        /* check LEON version here */
  40        printf("CPU: LEON3\n");
  41        return 0;
  42}
  43
  44/* ------------------------------------------------------------------------- */
  45
  46void cpu_reset(void)
  47{
  48        /* Interrupts off */
  49        disable_interrupts();
  50
  51        /* jump to restart in flash */
  52        _reset_reloc();
  53}
  54
  55int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  56{
  57        cpu_reset();
  58
  59        return 1;
  60
  61}
  62
  63u64 flash_read64(void *addr)
  64{
  65        return __raw_readq(addr);
  66}
  67
  68/* ------------------------------------------------------------------------- */
  69
  70#ifdef CONFIG_GRETH
  71int cpu_eth_init(bd_t *bis)
  72{
  73        return greth_initialize(bis);
  74}
  75#endif
  76