| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007, 2008 Rudolf Marek <r.marek@assembler.cz> |
| * |
| * 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> |
| |
| #define SATA_MISC_CTRL 0x45 |
| |
| static void sata_i_init(struct device *dev) |
| { |
| u8 reg; |
| |
| printk(BIOS_DEBUG, "Configuring VIA SATA controller\n"); |
| |
| /* Class IDE Disk */ |
| reg = pci_read_config8(dev, SATA_MISC_CTRL); |
| reg &= 0x7f; /* Sub Class Write Protect off */ |
| pci_write_config8(dev, SATA_MISC_CTRL, reg); |
| |
| /* Change the device class to SATA from RAID. */ |
| pci_write_config8(dev, PCI_CLASS_DEVICE, 0x1); |
| reg |= 0x80; /* Sub Class Write Protect on */ |
| pci_write_config8(dev, SATA_MISC_CTRL, reg); |
| |
| return; |
| } |
| |
| static void sata_ii_init(struct device *dev) |
| { |
| u8 reg; |
| |
| sata_i_init(dev); |
| |
| /* |
| * Analog black magic, you may or may not need to adjust 0x60-0x6f, |
| * depends on PCB. |
| */ |
| |
| /* |
| * Analog PHY - gen1 |
| * CDR bandwidth [6:5] = 3 |
| * Squelch Window Select [4:3] = 1 |
| * CDR Charge Pump [2:0] = 1 |
| */ |
| |
| pci_write_config8(dev, 0x64, 0x49); |
| |
| /* Adjust driver current source value to 9. */ |
| reg = pci_read_config8(dev, 0x65); |
| reg &= 0xf0; |
| reg |= 0x9; |
| pci_write_config8(dev, 0x65, reg); |
| |
| /* Set all manual termination 50ohm bits [2:0] and enable [4]. */ |
| reg = pci_read_config8(dev, 0x6a); |
| reg |= 0xf; |
| pci_write_config8(dev, 0x6a, reg); |
| |
| /* |
| * Analog PHY - gen2 |
| * CDR bandwidth [5:4] = 2 |
| * Pre / De-emphasis Level [7:6] controls bits [3:2], rest in 0x6e |
| * CDR Charge Pump [2:0] = 1 |
| */ |
| |
| reg = pci_read_config8(dev, 0x6f); |
| reg &= 0x08; |
| reg |= 0x61; |
| pci_write_config8(dev, 0x6f, reg); |
| |
| /* Check if staggered spinup is supported. */ |
| reg = pci_read_config8(dev, 0x83); |
| if ((reg & 0x8) == 0) { |
| /* Start OOB sequence on both drives. */ |
| reg |= 0x30; |
| pci_write_config8(dev, 0x83, reg); |
| } |
| } |
| |
| |
| static void vt8237_set_subsystem(device_t dev, unsigned vendor, unsigned device) |
| { |
| pci_write_config16(dev, 0xd4, vendor); |
| pci_write_config16(dev, 0xd6, device); |
| } |
| |
| static struct pci_operations lops_pci = { |
| .set_subsystem = vt8237_set_subsystem, |
| }; |
| |
| static const struct device_operations sata_i_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sata_i_init, |
| .enable = 0, |
| .ops_pci = &lops_pci, |
| }; |
| |
| static const struct device_operations sata_ii_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sata_ii_init, |
| .enable = 0, |
| .ops_pci = &lops_pci, |
| }; |
| |
| static const struct pci_driver northbridge_driver_ii __pci_driver = { |
| .ops = &sata_ii_ops, |
| .vendor = PCI_VENDOR_ID_VIA, |
| .device = PCI_DEVICE_ID_VIA_VT8237_SATA, |
| }; |
| |
| static const struct pci_driver northbridge_driver_i_a __pci_driver = { |
| .ops = &sata_i_ops, |
| .vendor = PCI_VENDOR_ID_VIA, |
| .device = PCI_DEVICE_ID_VIA_VT8237A_SATA, |
| }; |
| |
| static const struct pci_driver northbridge_driver_i __pci_driver = { |
| .ops = &sata_i_ops, |
| .vendor = PCI_VENDOR_ID_VIA, |
| .device = PCI_DEVICE_ID_VIA_VT6420_SATA, |
| }; |