arch/microblaze/lib/cache.c

   1 /*
   2  * (C) Copyright 2004 Atmark Techno, Inc.
   3  *
   4  * Yasushi SHOJI <yashi@atmark-techno.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
  27 void flush_cache (ulong addr, ulong size)
  28 {
  29         int i;
  30         for (i = 0; i < size; i += 4)
  31                 asm volatile (
  32 #ifdef CONFIG_ICACHE
  33                                 "wic    %0, r0;"
  34 #endif
  35                                 "nop;"
  36 #ifdef CONFIG_DCACHE
  37                                 "wdc    %0, r0;"
  38 #endif
  39                                 "nop;"
  40                                 :
  41                                 : "r" (addr + i)
  42                                 : "memory");
  43 }