/* * 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, };