5f46af6325
Some of these can be changed from #if to if(), but that will happen in a follow-on commmit. Change-Id: I9f4155285529ec28e826637a61436478f648704c Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/20335 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2006 Indrek Kruusa <indrek.kruusa@artecdesign.ee>
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* Copyright (C) 2006 Ronald G. Minnich <rminnich@gmail.com>
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* Copyright (C) 2007 Advanced Micro Devices, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/**
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* StartTimer1
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*
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* Entry: none
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* Exit: Starts Timer 1 for port 61 use
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* Destroys: Al,
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*/
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static void StartTimer1(void)
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{
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outb(0x56, 0x43);
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outb(0x12, 0x41);
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}
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void SystemPreInit(void)
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{
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/* they want a jump ... */
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#if !IS_ENABLED(CONFIG_CACHE_AS_RAM)
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__asm__ __volatile__("jmp .+2\ninvd\njmp .+2\n");
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#endif
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StartTimer1();
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}
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