1/*
2 * Copyright (C) 2011 Andes Technology Corporation
3 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <asm/arch-ag101/ag101.h>
25#include <linux/linkage.h>
26
27.text
28
29#ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG
30ENTRY(turnoff_watchdog)
31
32#define WD_CR		0xC
33#define WD_ENABLE	0x1
34
35	! Turn off the watchdog, according to Faraday FTWDT010 spec
36	li 	$p0, (CONFIG_FTWDT010_BASE+WD_CR)	! Get the addr of WD CR
37	lwi	$p1, [$p0]				! Get the config of WD
38	andi	$p1, $p1, 0x1f				! Wipe out useless bits
39	li	$r0, ~WD_ENABLE
40	and	$p1, $p1, $r0				! Set WD disable
41	sw	$p1, [$p0]				! Write back to WD CR
42
43	! Disable Interrupts by clear GIE in $PSW reg
44	setgie.d
45
46	ret
47
48ENDPROC(turnoff_watchdog)
49#endif
50