| /* | |
| * (C) Copyright 2002 | |
| * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
| * Marius Groeger <mgroeger@sysgo.de> | |
| * | |
| * (C) Copyright 2002 | |
| * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> | |
| * | |
| * See file CREDITS for list of people who contributed to this | |
| * project. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License as | |
| * published by the Free Software Foundation; either version 2 of | |
| * the License, or (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| * MA 02111-1307 USA | |
| */ | |
| /* | |
| * CPU specific code | |
| */ | |
| #include <common.h> | |
| #include <command.h> | |
| #include <asm/system.h> | |
| static void cache_flush(void); | |
| int cleanup_before_linux (void) | |
| { | |
| /* | |
| * this function is called just before we call linux | |
| * it prepares the processor for linux | |
| * | |
| * we turn off caches etc ... | |
| */ | |
| disable_interrupts (); | |
| /* turn off I/D-cache */ | |
| icache_disable(); | |
| dcache_disable(); | |
| /* flush I/D-cache */ | |
| cache_flush(); | |
| return 0; | |
| } | |
| /* flush I/D-cache */ | |
| static void cache_flush (void) | |
| { | |
| unsigned long i = 0; | |
| asm ("mcr p15, 0, %0, c7, c7, 0": :"r" (i)); | |
| } |