1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * Copyright (C) 2011 Andes Technology Corporation 4 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> 5 */ 6 7#include <asm/arch-ag101/ag101.h> 8#include <linux/linkage.h> 9 10.text 11 12#ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG 13ENTRY(turnoff_watchdog) 14 15#define WD_CR 0xC 16#define WD_ENABLE 0x1 17 18 ! Turn off the watchdog, according to Faraday FTWDT010 spec 19 li $p0, (CONFIG_FTWDT010_BASE+WD_CR) ! Get the addr of WD CR 20 lwi $p1, [$p0] ! Get the config of WD 21 andi $p1, $p1, 0x1f ! Wipe out useless bits 22 li $r0, ~WD_ENABLE 23 and $p1, $p1, $r0 ! Set WD disable 24 sw $p1, [$p0] ! Write back to WD CR 25 26 ! Disable Interrupts by clear GIE in $PSW reg 27 setgie.d 28 29 ret 30 31ENDPROC(turnoff_watchdog) 32#endif 33