3 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4 * Marius Groeger <mgroeger@sysgo.de>
7 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
8 * Alex Zuepke <azu@sysgo.de>
10 * See file CREDITS for list of people who contributed to this
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
36 #include <asm/hardware.h>
37 #include <asm/system.h>
39 int cleanup_before_linux (void)
42 * this function is called just before we call linux
43 * it prepares the processor for linux
45 * we turn off caches etc ...
46 * and we set the CPU-speed to 73 MHz - see start.S for details
49 #if defined(CONFIG_NETARM) || defined(CONFIG_S3C4510B) || defined(CONFIG_LPC2292)
50 disable_interrupts ();
51 /* Nothing more needed */
52 #elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
53 /* No cleanup before linux for IntegratorAP/CM720T as yet */
54 #elif defined(CONFIG_TEGRA)
55 /* No cleanup before linux for tegra as yet */
57 #error No cleanup_before_linux() defined for this CPU type