b920de1b77
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
60 lines
1.7 KiB
ArmAsm
60 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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.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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mov d0,(watchdog_alert_counter)
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ret [],0
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.size touch_nmi_watchdog,.-touch_nmi_watchdog
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