892e9f6030
Use of device_t has been abandoned in ramstage. Change-Id: I661b2435d9f0306b246a3e89aac24eb30c959085 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/26253 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
52 lines
1.4 KiB
C
52 lines
1.4 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 John Dufresne <jon.dufresne@gmail.com>
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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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#include <console/console.h>
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#include <arch/io.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <watchdog.h>
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/* TODO: I'm fairly sure the same functionality is provided elsewhere. */
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void watchdog_off(void)
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{
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struct device *dev;
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unsigned long value, base;
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/* Turn off the ICH5 watchdog. */
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dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
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/* Enable I/O space. */
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value = pci_read_config16(dev, 0x04);
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value |= (1 << 10);
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pci_write_config16(dev, 0x04, value);
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/* Get TCO base. */
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base = (pci_read_config32(dev, 0x40) & 0x0fffe) + 0x60;
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/* Disable the watchdog timer. */
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value = inw(base + 0x08);
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value |= 1 << 11;
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outw(value, base + 0x08);
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/* Clear TCO timeout status. */
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outw(0x0008, base + 0x04);
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outw(0x0002, base + 0x06);
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printk(BIOS_DEBUG, "ICH Watchdog disabled\n");
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}
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