/* * This file is part of the coreboot project. * * Copyright (C) 2004 Ronald G. Minnich * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <console/console.h> #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> #include <device/pci_ops.h> #include "i82801dx.h" typedef struct southbridge_intel_i82801dx_config config_t; static void ide_init(struct device *dev) { /* Get the chip configuration */ config_t *config = dev->chip_info; /* Enable IDE devices so the Linux IDE driver will work. */ uint16_t ideTimingConfig; ideTimingConfig = pci_read_config16(dev, IDE_TIM_PRI); ideTimingConfig &= ~IDE_DECODE_ENABLE; if (!config || config->ide0_enable) { /* Enable primary IDE interface. */ ideTimingConfig |= IDE_DECODE_ENABLE; printk(BIOS_DEBUG, "IDE0: Primary IDE interface is enabled\n"); } else { printk(BIOS_INFO, "IDE0: Primary IDE interface is disabled\n"); } pci_write_config16(dev, IDE_TIM_PRI, ideTimingConfig); ideTimingConfig = pci_read_config16(dev, IDE_TIM_SEC); ideTimingConfig &= ~IDE_DECODE_ENABLE; if (!config || config->ide1_enable) { /* Enable secondary IDE interface. */ ideTimingConfig |= IDE_DECODE_ENABLE; printk(BIOS_DEBUG, "IDE1: Secondary IDE interface is enabled\n"); } else { printk(BIOS_INFO, "IDE1: Secondary IDE interface is disabled\n"); } pci_write_config16(dev, IDE_TIM_SEC, ideTimingConfig); } static struct device_operations ide_ops = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .init = ide_init, .scan_bus = 0, .enable = i82801dx_enable, }; /* 82801DB */ static const struct pci_driver i82801db_ide __pci_driver = { .ops = &ide_ops, .vendor = PCI_VENDOR_ID_INTEL, .device = 0x24cb, }; /* 82801DBM */ static const struct pci_driver i82801dbm_ide __pci_driver = { .ops = &ide_ops, .vendor = PCI_VENDOR_ID_INTEL, .device = 0x24ca, };