arch/nds32/cpu/n1213/ae3xx/cpu.c

   1 /*
   2  * (C) Copyright 2002
   3  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
   4  * Marius Groeger <mgroeger@sysgo.de>
   5  *
   6  * (C) Copyright 2002
   7  * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
   8  *
   9  * Copyright (C) 2011 Andes Technology Corporation
  10  * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
  11  * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
  12  *
  13  * SPDX-License-Identifier:     GPL-2.0+
  14  */
  15
  16 /* CPU specific code */
  17 #include <common.h>
  18 #include <command.h>
  19 #include <watchdog.h>
  20 #include <asm/cache.h>
  21
  22 #include <faraday/ftwdt010_wdt.h>
  23
  24 /*
  25  * cleanup_before_linux() is called just before we call linux
  26  * it prepares the processor for linux
  27  *
  28  * we disable interrupt and caches.
  29  */
  30 int cleanup_before_linux(void)
  31 {
  32         disable_interrupts();
  33
  34         /* turn off I/D-cache */
  35         cache_flush();
  36         icache_disable();
  37         dcache_disable();
  38         return 0;
  39 }
  40
  41 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  42 {
  43         disable_interrupts();
  44         panic("AE3XX wdt not support yet.\n");
  45 }