60 lines
1.7 KiB
ArmAsm
60 lines
1.7 KiB
ArmAsm
###############################################################################
|
|
#
|
|
# MN10300 Watchdog interrupt handler
|
|
#
|
|
# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
|
|
# Written by David Howells (dhowells@redhat.com)
|
|
#
|
|
# This program is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU General Public Licence
|
|
# as published by the Free Software Foundation; either version
|
|
# 2 of the Licence, or (at your option) any later version.
|
|
#
|
|
###############################################################################
|
|
#include <linux/sys.h>
|
|
#include <linux/linkage.h>
|
|
#include <asm/intctl-regs.h>
|
|
#include <asm/timer-regs.h>
|
|
#include <asm/frame.inc>
|
|
|
|
.text
|
|
|
|
###############################################################################
|
|
#
|
|
# Watchdog handler entry point
|
|
# - special non-maskable interrupt
|
|
#
|
|
###############################################################################
|
|
.globl watchdog_handler
|
|
.type watchdog_handler,@function
|
|
watchdog_handler:
|
|
add -4,sp
|
|
SAVE_ALL
|
|
|
|
mov 0xffffffff,d0
|
|
mov d0,(REG_ORIG_D0,fp)
|
|
|
|
mov fp,d0
|
|
lsr 2,d1
|
|
call watchdog_interrupt[],0 # watchdog_interrupt(regs,irq)
|
|
|
|
jmp ret_from_intr
|
|
|
|
.size watchdog_handler,.-watchdog_handler
|
|
|
|
###############################################################################
|
|
#
|
|
# Watchdog touch entry point
|
|
# - kept to absolute minimum (unfortunately, it's prototyped in linux/nmi.h so
|
|
# we can't inline it)
|
|
#
|
|
###############################################################################
|
|
.globl touch_nmi_watchdog
|
|
.type touch_nmi_watchdog,@function
|
|
touch_nmi_watchdog:
|
|
clr d0
|
|
mov d0,(watchdog_alert_counter)
|
|
ret [],0
|
|
|
|
.size touch_nmi_watchdog,.-touch_nmi_watchdog
|