| /* |
| * 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 "i82801ix.h" |
| |
| static void thermal_init(struct device *dev) |
| { |
| if (LPC_IS_MOBILE(dev_find_slot(0, PCI_DEVFN(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(device_t 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 struct pci_driver ich9_thermal __pci_driver = { |
| .ops = &device_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = 0x2932, |
| }; |