lib_blackfin/cache.c

   1 /*
   2  * U-boot - cache.c
   3  *
   4  * Copyright (c) 2005-2007 Analog Devices Inc.
   5  *
   6  * (C) Copyright 2000-2004
   7  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   8  *
   9  * See file CREDITS for list of people who contributed to this
  10  * project.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License as
  14  * published by the Free Software Foundation; either version 2 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  25  * MA 02110-1301 USA
  26  */
  27
  28 /* for now: just dummy functions to satisfy the linker */
  29 #include <config.h>
  30 #include <common.h>
  31 #include <asm/blackfin.h>
  32 #include "cache.h"
  33
  34 void flush_cache(unsigned long dummy1, unsigned long dummy2)
  35 {
  36         if ((dummy1 >= L1_ISRAM) && (dummy1 < L1_ISRAM_END))
  37                 return;
  38         if ((dummy1 >= DATA_BANKA_SRAM) && (dummy1 < DATA_BANKA_SRAM_END))
  39                 return;
  40         if ((dummy1 >= DATA_BANKB_SRAM) && (dummy1 < DATA_BANKB_SRAM_END))
  41                 return;
  42
  43         if (icache_status())
  44                 blackfin_icache_flush_range((void*)dummy1, (void*)(dummy1 + dummy2));
  45         if (dcache_status())
  46                 blackfin_dcache_flush_range((void*)dummy1, (void*)(dummy1 + dummy2));
  47
  48         return;
  49 }