cpu/sh4/cpu.c

   1 /*
   2  * (C) Copyright 2007
   3  * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <command.h>
  26 #include <asm/processor.h>
  27 #include <asm/cache.h>
  28
  29 int checkcpu(void)
  30 {
  31         puts("CPU: SH4\n");
  32         return 0;
  33 }
  34
  35 int cpu_init (void)
  36 {
  37         return 0;
  38 }
  39
  40 int cleanup_before_linux (void)
  41 {
  42         disable_interrupts();
  43         return 0;
  44 }
  45
  46 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  47 {
  48         disable_interrupts();
  49         reset_cpu (0);
  50         return 0;
  51 }
  52
  53 void flush_cache (unsigned long addr, unsigned long size)
  54 {
  55         dcache_invalid_range( addr , addr + size );
  56 }
  57
  58 void icache_enable (void)
  59 {
  60         cache_control(0);
  61 }
  62
  63 void icache_disable (void)
  64 {
  65         cache_control(1);
  66 }
  67
  68 int icache_status (void)
  69 {
  70         return 0;
  71 }
  72
  73 void dcache_enable (void)
  74 {
  75 }
  76
  77 void dcache_disable (void)
  78 {
  79 }
  80
  81 int dcache_status (void)
  82 {
  83         return 0;
  84 }