Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| 5 | * Copyright (C) 2008-2009 coresystems GmbH |
| 6 | * Copyright (C) 2014 Google Inc. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; version 2 of the License. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 16 | */ |
| 17 | |
| 18 | #include <console/console.h> |
| 19 | #include <device/device.h> |
Jonathan A. Kollasch | ec505ad2 | 2015-07-07 12:57:46 -0500 | [diff] [blame] | 20 | #include <device/azalia_device.h> |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 21 | #include <device/pci.h> |
| 22 | #include <device/pci_ids.h> |
| 23 | #include <device/pci_ops.h> |
| 24 | #include <arch/io.h> |
| 25 | #include <delay.h> |
| 26 | #include <soc/intel/common/hda_verb.h> |
Julius Werner | 4ee4bd5 | 2014-10-20 13:46:39 -0700 | [diff] [blame] | 27 | #include <soc/pch.h> |
| 28 | #include <soc/ramstage.h> |
| 29 | #include <soc/rcba.h> |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 30 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 31 | static void codecs_init(u8 *base, u32 codec_mask) |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 32 | { |
| 33 | int i; |
| 34 | |
| 35 | /* Can support up to 4 codecs */ |
| 36 | for (i = 3; i >= 0; i--) { |
| 37 | if (codec_mask & (1 << i)) |
| 38 | hda_codec_init(base, i, |
| 39 | cim_verb_data_size, |
| 40 | cim_verb_data); |
| 41 | } |
| 42 | |
Jonathan A. Kollasch | ec505ad2 | 2015-07-07 12:57:46 -0500 | [diff] [blame] | 43 | if (pc_beep_verbs_size) |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 44 | hda_codec_write(base, pc_beep_verbs_size, pc_beep_verbs); |
| 45 | } |
| 46 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 47 | static void hda_pch_init(struct device *dev, u8 *base) |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 48 | { |
| 49 | u8 reg8; |
| 50 | u16 reg16; |
| 51 | u32 reg32; |
| 52 | |
| 53 | if (RCBA32(0x2030) & (1 << 31)) { |
| 54 | reg32 = pci_read_config32(dev, 0x120); |
| 55 | reg32 &= 0xf8ffff01; |
| 56 | reg32 |= (1 << 25); |
| 57 | reg32 |= RCBA32(0x2030) & 0xfe; |
| 58 | pci_write_config32(dev, 0x120, reg32); |
| 59 | } else |
| 60 | printk(BIOS_DEBUG, "HDA: V1CTL disabled.\n"); |
| 61 | |
| 62 | reg32 = pci_read_config32(dev, 0x114); |
| 63 | reg32 &= ~0xfe; |
| 64 | pci_write_config32(dev, 0x114, reg32); |
| 65 | |
| 66 | // Set VCi enable bit |
| 67 | if (pci_read_config32(dev, 0x120) & ((1 << 24) | |
| 68 | (1 << 25) | (1 << 26))) { |
| 69 | reg32 = pci_read_config32(dev, 0x120); |
| 70 | reg32 &= ~(1 << 31); |
| 71 | pci_write_config32(dev, 0x120, reg32); |
| 72 | } |
| 73 | |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 74 | /* Additional programming steps */ |
| 75 | reg32 = pci_read_config32(dev, 0xc4); |
| 76 | reg32 |= (1 << 24); |
| 77 | pci_write_config32(dev, 0xc4, reg32); |
| 78 | |
| 79 | reg8 = pci_read_config8(dev, 0x40); // Audio Control |
| 80 | reg8 |= 1; // Select HDA mode |
| 81 | pci_write_config8(dev, 0x40, reg8); |
| 82 | |
| 83 | reg8 = pci_read_config8(dev, 0x4d); // Docking Status |
| 84 | reg8 &= ~(1 << 7); // Docking not supported |
| 85 | pci_write_config8(dev, 0x4d, reg8); |
| 86 | |
| 87 | reg16 = read32(base + 0x0012); |
| 88 | reg16 |= (1 << 0); |
| 89 | write32(base + 0x0012, reg16); |
| 90 | |
| 91 | /* disable Auto Voltage Detector */ |
| 92 | reg8 = pci_read_config8(dev, 0x42); |
| 93 | reg8 |= (1 << 2); |
| 94 | pci_write_config8(dev, 0x42, reg8); |
| 95 | } |
| 96 | |
| 97 | static void hda_init(struct device *dev) |
| 98 | { |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 99 | u8 *base; |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 100 | struct resource *res; |
| 101 | u32 codec_mask; |
| 102 | u32 reg32; |
| 103 | |
| 104 | /* Find base address */ |
| 105 | res = find_resource(dev, PCI_BASE_ADDRESS_0); |
| 106 | if (!res) |
| 107 | return; |
| 108 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 109 | base = res2mmio(res, 0, 0); |
| 110 | printk(BIOS_DEBUG, "HDA: base = %p\n", base); |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 111 | |
| 112 | /* Set Bus Master */ |
| 113 | reg32 = pci_read_config32(dev, PCI_COMMAND); |
| 114 | pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER); |
| 115 | |
| 116 | hda_pch_init(dev, base); |
| 117 | |
| 118 | codec_mask = hda_codec_detect(base); |
| 119 | |
| 120 | if (codec_mask) { |
| 121 | printk(BIOS_DEBUG, "HDA: codec_mask = %02x\n", codec_mask); |
| 122 | codecs_init(base, codec_mask); |
| 123 | } |
| 124 | } |
| 125 | |
Duncan Laurie | 6168027 | 2014-05-05 12:42:35 -0500 | [diff] [blame] | 126 | static void hda_enable(struct device *dev) |
| 127 | { |
| 128 | u32 reg32; |
Duncan Laurie | 446fb8e | 2014-08-08 09:59:43 -0700 | [diff] [blame] | 129 | u8 reg8; |
| 130 | |
| 131 | reg8 = pci_read_config8(dev, 0x43); |
| 132 | reg8 |= 0x6f; |
| 133 | pci_write_config8(dev, 0x43, reg8); |
Duncan Laurie | 6168027 | 2014-05-05 12:42:35 -0500 | [diff] [blame] | 134 | |
| 135 | if (!dev->enabled) { |
| 136 | /* Route I/O buffers to ADSP function */ |
Duncan Laurie | 446fb8e | 2014-08-08 09:59:43 -0700 | [diff] [blame] | 137 | reg8 = pci_read_config8(dev, 0x42); |
| 138 | reg8 |= (1 << 7) | (1 << 6); |
| 139 | pci_write_config8(dev, 0x42, reg8); |
Duncan Laurie | 6168027 | 2014-05-05 12:42:35 -0500 | [diff] [blame] | 140 | |
| 141 | printk(BIOS_INFO, "HDA disabled, I/O buffers routed to ADSP\n"); |
| 142 | |
| 143 | /* Ensure memory, io, and bus master are all disabled */ |
| 144 | reg32 = pci_read_config32(dev, PCI_COMMAND); |
| 145 | reg32 &= ~(PCI_COMMAND_MASTER | |
| 146 | PCI_COMMAND_MEMORY | PCI_COMMAND_IO); |
| 147 | pci_write_config32(dev, PCI_COMMAND, reg32); |
| 148 | |
| 149 | /* Disable this device */ |
| 150 | pch_disable_devfn(dev); |
| 151 | } |
| 152 | } |
| 153 | |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 154 | static struct device_operations hda_ops = { |
| 155 | .read_resources = &pci_dev_read_resources, |
| 156 | .set_resources = &pci_dev_set_resources, |
| 157 | .enable_resources = &pci_dev_enable_resources, |
| 158 | .init = &hda_init, |
Duncan Laurie | 6168027 | 2014-05-05 12:42:35 -0500 | [diff] [blame] | 159 | .enable = &hda_enable, |
Duncan Laurie | c88c54c | 2014-04-30 16:36:13 -0700 | [diff] [blame] | 160 | .ops_pci = &broadwell_pci_ops, |
| 161 | }; |
| 162 | |
| 163 | static const unsigned short pci_device_ids[] = { |
| 164 | 0x9c20, /* LynxPoint-LP */ |
| 165 | 0x9ca0, /* WildcatPoint */ |
| 166 | 0 |
| 167 | }; |
| 168 | |
| 169 | static const struct pci_driver pch_hda __pci_driver = { |
| 170 | .ops = &hda_ops, |
| 171 | .vendor = PCI_VENDOR_ID_INTEL, |
| 172 | .devices = pci_device_ids, |
| 173 | }; |