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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 secunet Security Networks AG
* (Written by Nico Huber <nico.huber@secunet.com> for secunet)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/io.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include "i82801jx.h"
static void thermal_init(struct device *dev)
{
if (LPC_IS_MOBILE(pcidev_on_root(0x1f, 0)))
return;
u8 reg8;
u32 reg32;
pci_write_config32(dev, 0x10, (uintptr_t)DEFAULT_TBAR);
reg32 = pci_read_config32(dev, 0x04);
pci_write_config32(dev, 0x04, reg32 | (1 << 1));
write32(DEFAULT_TBAR + 0x04, 0); /* Clear thermal trip points. */
write32(DEFAULT_TBAR + 0x44, 0);
write8(DEFAULT_TBAR + 0x01, 0xba); /* Enable sensor 0 + 1. */
write8(DEFAULT_TBAR + 0x41, 0xba);
reg8 = read8(DEFAULT_TBAR + 0x08); /* Lock thermal registers. */
write8(DEFAULT_TBAR + 0x08, reg8 | (1 << 7));
reg8 = read8(DEFAULT_TBAR + 0x48);
write8(DEFAULT_TBAR + 0x48, reg8 | (1 << 7));
reg32 = pci_read_config32(dev, 0x04);
pci_write_config32(dev, 0x04, reg32 & ~(1 << 1));
pci_write_config32(dev, 0x10, 0);
}
static void thermal_set_subsystem(struct device *dev, unsigned vendor,
unsigned device)
{
if (!vendor || !device) {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
pci_read_config32(dev, PCI_VENDOR_ID));
} else {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
}
static struct pci_operations thermal_pci_ops = {
.set_subsystem = thermal_set_subsystem,
};
static struct device_operations device_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = thermal_init,
.scan_bus = 0,
.ops_pci = &thermal_pci_ops,
};
static const unsigned short pci_device_ids[] = {
0x3a32,
0x3a62,
0
};
static const struct pci_driver ich10_thermal __pci_driver = {
.ops = &device_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
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