Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 1 | /* |
Stefan Reinauer | 7e61e45 | 2008-01-18 10:35:56 +0000 | [diff] [blame] | 2 | * This file is part of the coreboot project. |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 3 | * |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 4 | * Copyright (C) 2007, 2008 Rudolf Marek <r.marek@assembler.cz> |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
Uwe Hermann | c70e9fc | 2010-02-15 23:10:19 +0000 | [diff] [blame] | 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <console/console.h> |
| 17 | #include <device/device.h> |
| 18 | #include <device/pci.h> |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 19 | #include <device/pci_ids.h> |
| 20 | |
| 21 | #define SATA_MISC_CTRL 0x45 |
| 22 | |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 23 | static void sata_i_init(struct device *dev) |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 24 | { |
| 25 | u8 reg; |
| 26 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 27 | printk(BIOS_DEBUG, "Configuring VIA SATA controller\n"); |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 28 | |
| 29 | /* Class IDE Disk */ |
| 30 | reg = pci_read_config8(dev, SATA_MISC_CTRL); |
| 31 | reg &= 0x7f; /* Sub Class Write Protect off */ |
| 32 | pci_write_config8(dev, SATA_MISC_CTRL, reg); |
| 33 | |
| 34 | /* Change the device class to SATA from RAID. */ |
| 35 | pci_write_config8(dev, PCI_CLASS_DEVICE, 0x1); |
| 36 | reg |= 0x80; /* Sub Class Write Protect on */ |
| 37 | pci_write_config8(dev, SATA_MISC_CTRL, reg); |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 38 | |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 39 | return; |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 40 | } |
| 41 | |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 42 | static void sata_ii_init(struct device *dev) |
| 43 | { |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 44 | u8 reg; |
| 45 | |
| 46 | sata_i_init(dev); |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 47 | |
| 48 | /* |
| 49 | * Analog black magic, you may or may not need to adjust 0x60-0x6f, |
| 50 | * depends on PCB. |
| 51 | */ |
| 52 | |
| 53 | /* |
| 54 | * Analog PHY - gen1 |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 55 | * CDR bandwidth [6:5] = 3 |
| 56 | * Squelch Window Select [4:3] = 1 |
| 57 | * CDR Charge Pump [2:0] = 1 |
| 58 | */ |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 59 | |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 60 | pci_write_config8(dev, 0x64, 0x49); |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 61 | |
| 62 | /* Adjust driver current source value to 9. */ |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 63 | reg = pci_read_config8(dev, 0x65); |
| 64 | reg &= 0xf0; |
| 65 | reg |= 0x9; |
| 66 | pci_write_config8(dev, 0x65, reg); |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 67 | |
| 68 | /* Set all manual termination 50ohm bits [2:0] and enable [4]. */ |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 69 | reg = pci_read_config8(dev, 0x6a); |
| 70 | reg |= 0xf; |
| 71 | pci_write_config8(dev, 0x6a, reg); |
| 72 | |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 73 | /* |
| 74 | * Analog PHY - gen2 |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 75 | * CDR bandwidth [5:4] = 2 |
| 76 | * Pre / De-emphasis Level [7:6] controls bits [3:2], rest in 0x6e |
| 77 | * CDR Charge Pump [2:0] = 1 |
| 78 | */ |
| 79 | |
| 80 | reg = pci_read_config8(dev, 0x6f); |
| 81 | reg &= 0x08; |
| 82 | reg |= 0x61; |
| 83 | pci_write_config8(dev, 0x6f, reg); |
| 84 | |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 85 | /* Check if staggered spinup is supported. */ |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 86 | reg = pci_read_config8(dev, 0x83); |
| 87 | if ((reg & 0x8) == 0) { |
Uwe Hermann | 0a20c41 | 2008-10-12 14:40:23 +0000 | [diff] [blame] | 88 | /* Start OOB sequence on both drives. */ |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 89 | reg |= 0x30; |
| 90 | pci_write_config8(dev, 0x83, reg); |
| 91 | } |
| 92 | } |
| 93 | |
Rudolf Marek | 0f1dc4e | 2011-04-22 20:48:21 +0200 | [diff] [blame] | 94 | |
| 95 | static void vt8237_set_subsystem(device_t dev, unsigned vendor, unsigned device) |
| 96 | { |
| 97 | pci_write_config16(dev, 0xd4, vendor); |
| 98 | pci_write_config16(dev, 0xd6, device); |
| 99 | } |
| 100 | |
| 101 | static struct pci_operations lops_pci = { |
| 102 | .set_subsystem = vt8237_set_subsystem, |
| 103 | }; |
| 104 | |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 105 | static const struct device_operations sata_i_ops = { |
Uwe Hermann | f7daa0b | 2007-11-04 04:04:01 +0000 | [diff] [blame] | 106 | .read_resources = pci_dev_read_resources, |
| 107 | .set_resources = pci_dev_set_resources, |
| 108 | .enable_resources = pci_dev_enable_resources, |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 109 | .init = sata_i_init, |
Uwe Hermann | f7daa0b | 2007-11-04 04:04:01 +0000 | [diff] [blame] | 110 | .enable = 0, |
Rudolf Marek | 0f1dc4e | 2011-04-22 20:48:21 +0200 | [diff] [blame] | 111 | .ops_pci = &lops_pci, |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 112 | }; |
| 113 | |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 114 | static const struct device_operations sata_ii_ops = { |
| 115 | .read_resources = pci_dev_read_resources, |
| 116 | .set_resources = pci_dev_set_resources, |
| 117 | .enable_resources = pci_dev_enable_resources, |
| 118 | .init = sata_ii_init, |
| 119 | .enable = 0, |
Rudolf Marek | 0f1dc4e | 2011-04-22 20:48:21 +0200 | [diff] [blame] | 120 | .ops_pci = &lops_pci, |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 121 | }; |
| 122 | |
| 123 | static const struct pci_driver northbridge_driver_ii __pci_driver = { |
| 124 | .ops = &sata_ii_ops, |
| 125 | .vendor = PCI_VENDOR_ID_VIA, |
| 126 | .device = PCI_DEVICE_ID_VIA_VT8237_SATA, |
| 127 | }; |
| 128 | |
Tobias Diedrich | e080bca | 2010-11-11 05:08:33 +0000 | [diff] [blame] | 129 | static const struct pci_driver northbridge_driver_i_a __pci_driver = { |
| 130 | .ops = &sata_i_ops, |
| 131 | .vendor = PCI_VENDOR_ID_VIA, |
| 132 | .device = PCI_DEVICE_ID_VIA_VT8237A_SATA, |
| 133 | }; |
| 134 | |
Rudolf Marek | d9f29c8 | 2008-09-05 18:20:57 +0000 | [diff] [blame] | 135 | static const struct pci_driver northbridge_driver_i __pci_driver = { |
| 136 | .ops = &sata_i_ops, |
Uwe Hermann | f7daa0b | 2007-11-04 04:04:01 +0000 | [diff] [blame] | 137 | .vendor = PCI_VENDOR_ID_VIA, |
| 138 | .device = PCI_DEVICE_ID_VIA_VT6420_SATA, |
Rudolf Marek | 418bc91 | 2007-10-30 03:09:39 +0000 | [diff] [blame] | 139 | }; |