48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014 Vladimir Serbinenko
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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 License as
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* published by the Free Software Foundation; version 2 of
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* the License, or (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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <arch/io.h>
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#include "pch.h"
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/* Early thermal init, must be done prior to giving ME its memory
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which is done at the end of raminit. */
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void early_thermal_init(void)
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{
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device_t dev;
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dev = PCI_DEV(0x0, 0x1f, 0x6);
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/* Program address for temporary BAR. */
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pci_write_config32(dev, 0x40, 0x40000000);
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pci_write_config32(dev, 0x44, 0x0);
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/* Activate temporary BAR. */
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pci_write_config32(dev, 0x40,
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pci_read_config32(dev, 0x40) | 5);
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/* Perform init. */
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write16(0x4000001a, (read16(0x4000001a) & ~0xf) | 0x10f0);
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/* Disable temporary BAR. */
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pci_write_config32(dev, 0x40,
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pci_read_config32(dev, 0x40) & ~1);
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pci_write_config32(dev, 0x40, 0);
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}
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