8c4cf18fc4
Change-Id: I10135b37a6cef460be9bfbfd34746140310859a6 Signed-off-by: Florian Zumbiehl <florz@florz.de> Reviewed-on: http://review.coreboot.org/381 Tested-by: build bot (Jenkins) Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
150 lines
4.3 KiB
C
150 lines
4.3 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz>
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* Copyright (C) 2011 Alexandru Gagniuc <mr.nuke.me@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ops.h>
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#include <device/pci_ids.h>
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#include <console/console.h>
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#include "k8x8xx.h"
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static void host_old_enable(struct device *dev)
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{
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int agp3;
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/* some HT tweaking */
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pci_write_config8(dev, 0x50, 0x03);
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pci_write_config8(dev, 0x55, 0x2c);
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/* AGP setup */
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pci_write_config8(dev, 0xac, 0x06);
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pci_write_config8(dev, 0xad, 0x08);
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pci_write_config8(dev, 0xfd, 0x02);
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pci_write_config8(dev, 0x85, 0xb0);
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pci_write_config8(dev, 0x87, 0x07);
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pci_write_config8(dev, 0xfd, 0x06); // this is required for the following write to work
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pci_write_config8(dev, 0xaf, 0x88);
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pci_write_config8(dev, 0xfd, 0x04); // select AGP 3.0
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agp3 = pci_read_config8(dev, 0x84) & 0x08;
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pci_write_config8(dev, 0xb1, agp3 ? 0x00 : 0x9B);
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pci_write_config8(dev, 0xb3, agp3 ? 0x00 : 0x9B);
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pci_write_config8(dev, 0xb0, 0x40);
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pci_write_config8(dev, 0xb2, 0x11);
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pci_write_config8(dev, 0xed, 0x40);
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}
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static void host_old_init(struct device *dev)
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{
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k8x8xx_vt8237r_cfg(dev, NULL);
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}
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static void host_enable(struct device *dev)
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{
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/* Multiple function control */
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pci_write_config8(dev, K8T890_MULTIPLE_FN_EN, 0x01);
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print_debug(" VIA_X_0 device dump:\n");
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dump_south(dev);
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}
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static void host_init(struct device *dev)
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{
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u8 reg;
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/* AGP Capability Header Control */
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reg = pci_read_config8(dev, 0x4d);
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reg |= 0x20; /* GART access enabled by either D0F0 Rx90[8] or D1F0 Rx90[8] */
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pci_write_config8(dev, 0x4d, reg);
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/* GD Output Stagger Delay */
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reg = pci_read_config8(dev, 0x42);
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reg |= 0x10; /* AD[31:16] with 1ns */
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pci_write_config8(dev, 0x42, reg);
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/* AGP Control */
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reg = pci_read_config8(dev, 0xbc);
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reg |= 0x20; /* AGP Read Snoop DRAM Post-Write Buffer */
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pci_write_config8(dev, 0xbc, reg);
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}
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static const struct device_operations host_ops_old = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.enable = host_old_enable,
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.init = host_old_init,
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.ops_pci = 0,
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};
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static const struct device_operations host_ops_t = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.enable = host_enable,
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.ops_pci = 0,
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};
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static const struct device_operations host_ops_m = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.enable = host_enable,
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.init = host_init,
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.ops_pci = 0,
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};
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static const struct pci_driver northbridge_driver_t800_old __pci_driver = {
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.ops = &host_ops_old,
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.vendor = PCI_VENDOR_ID_VIA,
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.device = PCI_DEVICE_ID_VIA_K8T800_AGP,
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};
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static const struct pci_driver northbridge_driver_t800 __pci_driver = {
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.ops = &host_ops_t,
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.vendor = PCI_VENDOR_ID_VIA,
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.device = PCI_DEVICE_ID_VIA_K8T800_HT_AGP_CTR,
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};
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static const struct pci_driver northbridge_driver_m800 __pci_driver = {
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.ops = &host_ops_m,
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.vendor = PCI_VENDOR_ID_VIA,
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.device = PCI_DEVICE_ID_VIA_K8M800_HT_AGP_CTR,
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};
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static const struct pci_driver northbridge_driver_t890 __pci_driver = {
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.ops = &host_ops_t,
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.vendor = PCI_VENDOR_ID_VIA,
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.device = PCI_DEVICE_ID_VIA_K8T890CE_0,
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};
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static const struct pci_driver northbridge_driver_t890cf __pci_driver = {
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.ops = &host_ops_t,
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.vendor = PCI_VENDOR_ID_VIA,
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.device = PCI_DEVICE_ID_VIA_K8T890CF_0,
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};
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static const struct pci_driver northbridge_driver_m890 __pci_driver = {
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.ops = &host_ops_m,
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.vendor = PCI_VENDOR_ID_VIA,
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.device = PCI_DEVICE_ID_VIA_K8M890CE_0,
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};
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