| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2004 Tyan Computer |
| * Written by Yinghai Lu <yhlu@tyan.com> for Tyan Computer. |
| * |
| * 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 <console/console.h> |
| #include <device/device.h> |
| #include <device/resource.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include "chip.h" |
| |
| static void pci_init(struct device *dev) |
| { |
| u32 dword; |
| device_t pci_domain_dev; |
| struct resource *mem, *pref; |
| |
| dword = pci_read_config32(dev, 0x04); |
| dword |= (1 << 8); /* System error enable */ |
| dword |= (1 << 30); /* Clear possible errors */ |
| pci_write_config32(dev, 0x04, dword); |
| |
| #if 0 |
| word = pci_read_config16(dev, 0x48); |
| word |= (1 << 0); /* MRL2MRM */ |
| word |= (1 << 2); /* MR2MRM */ |
| pci_write_config16(dev, 0x48, word); |
| #endif |
| |
| #if 1 |
| dword = pci_read_config32(dev, 0x4c); |
| dword |= 0x00440000; /* TABORT_SER_ENABLE Park Last Enable. */ |
| pci_write_config32(dev, 0x4c, dword); |
| #endif |
| |
| pci_domain_dev = dev->bus->dev; |
| while (pci_domain_dev) { |
| if (pci_domain_dev->path.type == DEVICE_PATH_DOMAIN) |
| break; |
| pci_domain_dev = pci_domain_dev->bus->dev; |
| } |
| |
| if (!pci_domain_dev) |
| return; /* Impossible */ |
| |
| pref = probe_resource(pci_domain_dev, IOINDEX_SUBTRACTIVE(2,0)); |
| mem = probe_resource(pci_domain_dev, IOINDEX_SUBTRACTIVE(1,0)); |
| |
| if (!mem) |
| return; /* Impossible */ |
| |
| if (!pref || pref->base > mem->base) { |
| dword = mem->base & (0xffff0000UL); |
| printk(BIOS_DEBUG, "PCI DOMAIN mem base = 0x%010Lx\n", mem->base); |
| } else { |
| dword = pref->base & (0xffff0000UL); |
| printk(BIOS_DEBUG, "PCI DOMAIN pref base = 0x%010Lx\n", pref->base); |
| } |
| |
| printk(BIOS_DEBUG, "[0x50] <-- 0x%08x\n", dword); |
| pci_write_config32(dev, 0x50, dword); /* TOM */ |
| } |
| |
| static struct device_operations pci_ops = { |
| .read_resources = pci_bus_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_bus_enable_resources, |
| .init = pci_init, |
| .scan_bus = pci_scan_bridge, |
| }; |
| |
| static const struct pci_driver pci_driver __pci_driver = { |
| .ops = &pci_ops, |
| .vendor = PCI_VENDOR_ID_NVIDIA, |
| .device = PCI_DEVICE_ID_NVIDIA_CK804_PCI, |
| }; |