| /* |
| * (C) Copyright 2002 |
| * Sysgo Real-Time Solutions, GmbH <www.elinos.com> |
| * Marius Groeger <mgroeger@sysgo.de> |
| * |
| * (C) Copyright 2002 |
| * Gary Jennejohn, DENX Software Engineering, <gj@denx.de> |
| * |
| * Copyright (C) 2011 Andes Technology Corporation |
| * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com> |
| * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> |
| * |
| * 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 <watchdog.h> |
| #include <asm/cache.h> |
| |
| #include <faraday/ftwdt010_wdt.h> |
| |
| /* |
| * cleanup_before_linux() is called just before we call linux |
| * it prepares the processor for linux |
| * |
| * we disable interrupt and caches. |
| */ |
| int cleanup_before_linux(void) |
| { |
| disable_interrupts(); |
| |
| #ifdef CONFIG_MMU |
| /* turn off I/D-cache */ |
| icache_disable(); |
| dcache_disable(); |
| |
| /* flush I/D-cache */ |
| invalidate_icac(); |
| invalidate_dcac(); |
| #endif |
| |
| return 0; |
| } |
| |
| int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| disable_interrupts(); |
| |
| /* |
| * reset to the base addr of andesboot. |
| * currently no ROM loader at addr 0. |
| * do not use reset_cpu(0); |
| */ |
| #ifdef CONFIG_FTWDT010_WATCHDOG |
| /* |
| * workaround: if we use CONFIG_HW_WATCHDOG with ftwdt010, will lead |
| * automatic hardware reset when booting Linux. |
| * Please do not use CONFIG_HW_WATCHDOG and WATCHDOG_RESET() here. |
| */ |
| ftwdt010_wdt_reset(); |
| #endif /* CONFIG_FTWDT010_WATCHDOG */ |
| hang(); |
| |
| /*NOTREACHED*/ |
| } |
