2 * (C) Copyright 2008 Texas Insturments
5 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
11 * See file CREDITS for list of people who contributed to this
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
36 #include <asm/system.h>
37 #include <asm/cache.h>
39 #include <asm/arch/sys_proto.h>
42 static void cache_flush(void);
44 int cleanup_before_linux(void)
49 * this function is called just before we call linux
50 * it prepares the processor for linux
52 * we turn off caches etc ...
56 /* turn off I/D-cache */
60 /* invalidate I-cache */
64 /* turn off L2 cache */
66 /* invalidate L2 cache also */
67 invalidate_dcache(get_device_type());
70 /* mem barrier to sync up things */
71 asm("mcr p15, 0, %0, c7, c10, 4": :"r"(i));
80 static void cache_flush(void)
82 asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (0));