368dd5acd1
Implement the Panasonic MN10300 AM34 CPU subarch and implement SMP support for MN10300. Also implement support for the MN2WS0060 processor and the ASB2364 evaluation board which are AM34 based. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com>
67 lines
1.7 KiB
ArmAsm
67 lines
1.7 KiB
ArmAsm
###############################################################################
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#
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# MN10300 Watchdog interrupt handler
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#
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# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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# Written by David Howells (dhowells@redhat.com)
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public Licence
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# as published by the Free Software Foundation; either version
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# 2 of the Licence, or (at your option) any later version.
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#
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###############################################################################
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#include <linux/sys.h>
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#include <linux/linkage.h>
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#include <asm/intctl-regs.h>
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#include <asm/timer-regs.h>
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#include <asm/frame.inc>
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#include <linux/threads.h>
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.text
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###############################################################################
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#
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# Watchdog handler entry point
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# - special non-maskable interrupt
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#
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###############################################################################
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.globl watchdog_handler
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.type watchdog_handler,@function
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watchdog_handler:
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add -4,sp
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SAVE_ALL
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mov 0xffffffff,d0
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mov d0,(REG_ORIG_D0,fp)
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mov fp,d0
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lsr 2,d1
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call watchdog_interrupt[],0 # watchdog_interrupt(regs,irq)
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jmp ret_from_intr
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.size watchdog_handler,.-watchdog_handler
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###############################################################################
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#
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# Watchdog touch entry point
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# - kept to absolute minimum (unfortunately, it's prototyped in linux/nmi.h so
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# we can't inline it)
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#
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###############################################################################
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.globl touch_nmi_watchdog
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.type touch_nmi_watchdog,@function
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touch_nmi_watchdog:
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clr d0
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clr d1
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mov watchdog_alert_counter, a0
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setlb
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mov d0, (a0+)
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inc d1
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cmp NR_CPUS, d1
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lne
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ret [],0
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.size touch_nmi_watchdog,.-touch_nmi_watchdog
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