Angel Pons | 182dbde | 2020-04-02 23:49:05 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 2 | |
| 3 | #include <console/console.h> |
| 4 | #include <device/device.h> |
| 5 | #include <device/pci.h> |
| 6 | #include <device/pci_ids.h> |
| 7 | #include <device/pci_ops.h> |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame] | 8 | #include <device/mmio.h> |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 9 | #include <delay.h> |
Vladimir Serbinenko | 75c8387 | 2014-09-05 01:01:31 +0200 | [diff] [blame] | 10 | #include <device/azalia_device.h> |
Kyösti Mälkki | 12b121c | 2019-08-18 16:33:39 +0300 | [diff] [blame] | 11 | #include "chip.h" |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 12 | #include "i82801gx.h" |
| 13 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 14 | static int codec_detect(u8 *base) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 15 | { |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 16 | u32 reg32; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 17 | |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 18 | /* Set Bit 0 to 0 to enter reset state (BAR + 0x8)[0] */ |
Angel Pons | 61dd836 | 2020-12-05 18:02:32 +0100 | [diff] [blame] | 19 | if (azalia_set_bits(base + HDA_GCTL_REG, HDA_GCTL_CRST, 0) < 0) |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 20 | goto no_codec; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 21 | |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 22 | /* Set Bit 0 to 1 to exit reset state (BAR + 0x8)[0] */ |
Angel Pons | 61dd836 | 2020-12-05 18:02:32 +0100 | [diff] [blame] | 23 | if (azalia_set_bits(base + HDA_GCTL_REG, HDA_GCTL_CRST, HDA_GCTL_CRST) < 0) |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 24 | goto no_codec; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 25 | |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 26 | /* Read in Codec location (BAR + 0xe)[2..0] */ |
Elyes HAOUAS | f1da909 | 2020-08-03 15:35:16 +0200 | [diff] [blame] | 27 | reg32 = read32(base + HDA_STATESTS_REG); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 28 | reg32 &= 0x0f; |
| 29 | if (!reg32) |
| 30 | goto no_codec; |
Stefan Reinauer | 109ab31 | 2009-08-12 16:08:05 +0000 | [diff] [blame] | 31 | |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 32 | return reg32; |
| 33 | |
| 34 | no_codec: |
| 35 | /* Codec Not found */ |
| 36 | /* Put HDA back in reset (BAR + 0x8) [0] */ |
Angel Pons | 61dd836 | 2020-12-05 18:02:32 +0100 | [diff] [blame] | 37 | azalia_set_bits(base + HDA_GCTL_REG, 1, 0); |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 38 | printk(BIOS_DEBUG, "Azalia: No codec!\n"); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 39 | return 0; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 40 | } |
| 41 | |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 42 | /* |
| 43 | * Wait 50usec for the codec to indicate it is ready. |
| 44 | * No response would imply that the codec is non-operative. |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 45 | */ |
| 46 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 47 | static int wait_for_ready(u8 *base) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 48 | { |
Elyes HAOUAS | 92646ea | 2020-04-04 13:43:03 +0200 | [diff] [blame] | 49 | /* Use a 50 usec timeout - the Linux kernel uses the same duration */ |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 50 | int timeout = 50; |
| 51 | |
Elyes HAOUAS | ba28e8d | 2016-08-31 19:22:16 +0200 | [diff] [blame] | 52 | while (timeout--) { |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 53 | u32 reg32 = read32(base + HDA_ICII_REG); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 54 | if (!(reg32 & HDA_ICII_BUSY)) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 55 | return 0; |
| 56 | udelay(1); |
| 57 | } |
| 58 | |
| 59 | return -1; |
| 60 | } |
| 61 | |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 62 | /* |
| 63 | * Wait 50usec for the codec to indicate that it accepted the previous command. |
| 64 | * No response would imply that the code is non-operative. |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 65 | */ |
| 66 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 67 | static int wait_for_valid(u8 *base) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 68 | { |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 69 | u32 reg32; |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 70 | /* Use a 50 usec timeout - the Linux kernel uses the same duration */ |
| 71 | int timeout = 50; |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 72 | |
| 73 | /* Send the verb to the codec */ |
Elyes HAOUAS | f1da909 | 2020-08-03 15:35:16 +0200 | [diff] [blame] | 74 | reg32 = read32(base + HDA_ICII_REG); |
| 75 | reg32 |= HDA_ICII_BUSY | HDA_ICII_VALID; |
| 76 | write32(base + HDA_ICII_REG, reg32); |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 77 | |
Elyes HAOUAS | ba28e8d | 2016-08-31 19:22:16 +0200 | [diff] [blame] | 78 | while (timeout--) { |
Stefan Reinauer | 9fe4d79 | 2010-01-16 17:53:38 +0000 | [diff] [blame] | 79 | reg32 = read32(base + HDA_ICII_REG); |
Elyes HAOUAS | 92646ea | 2020-04-04 13:43:03 +0200 | [diff] [blame] | 80 | if ((reg32 & (HDA_ICII_VALID | HDA_ICII_BUSY)) == HDA_ICII_VALID) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 81 | return 0; |
| 82 | udelay(1); |
| 83 | } |
| 84 | |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 85 | return -1; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 86 | } |
| 87 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 88 | static void codec_init(struct device *dev, u8 *base, int addr) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 89 | { |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 90 | u32 reg32; |
Stefan Reinauer | c4f1a77 | 2010-06-05 10:03:08 +0000 | [diff] [blame] | 91 | const u32 *verb; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 92 | u32 verb_size; |
| 93 | int i; |
| 94 | |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 95 | printk(BIOS_DEBUG, "Azalia: Initializing codec #%d\n", addr); |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 96 | |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 97 | /* 1 */ |
Angel Pons | 554713e | 2020-10-24 23:23:07 +0200 | [diff] [blame] | 98 | if (wait_for_ready(base) < 0) { |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 99 | printk(BIOS_DEBUG, " codec not ready.\n"); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 100 | return; |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 101 | } |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 102 | |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 103 | reg32 = (addr << 28) | 0x000f0000; |
Elyes HAOUAS | f1da909 | 2020-08-03 15:35:16 +0200 | [diff] [blame] | 104 | write32(base + HDA_IC_REG, reg32); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 105 | |
Angel Pons | 554713e | 2020-10-24 23:23:07 +0200 | [diff] [blame] | 106 | if (wait_for_valid(base) < 0) { |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 107 | printk(BIOS_DEBUG, " codec not valid.\n"); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 108 | return; |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 109 | } |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 110 | |
| 111 | /* 2 */ |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 112 | reg32 = read32(base + HDA_IR_REG); |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 113 | printk(BIOS_DEBUG, "Azalia: codec viddid: %08x\n", reg32); |
Angel Pons | d425ddd | 2020-12-05 18:22:58 +0100 | [diff] [blame^] | 114 | verb_size = azalia_find_verb(cim_verb_data, cim_verb_data_size, reg32, &verb); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 115 | |
| 116 | if (!verb_size) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 117 | printk(BIOS_DEBUG, "Azalia: No verb!\n"); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 118 | return; |
| 119 | } |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 120 | printk(BIOS_DEBUG, "Azalia: verb_size: %d\n", verb_size); |
Stefan Reinauer | aca6ec6 | 2009-10-26 17:12:21 +0000 | [diff] [blame] | 121 | |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 122 | /* 3 */ |
| 123 | for (i = 0; i < verb_size; i++) { |
Angel Pons | 554713e | 2020-10-24 23:23:07 +0200 | [diff] [blame] | 124 | if (wait_for_ready(base) < 0) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 125 | return; |
| 126 | |
Elyes HAOUAS | f1da909 | 2020-08-03 15:35:16 +0200 | [diff] [blame] | 127 | write32(base + HDA_IC_REG, verb[i]); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 128 | |
Angel Pons | 554713e | 2020-10-24 23:23:07 +0200 | [diff] [blame] | 129 | if (wait_for_valid(base) < 0) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 130 | return; |
| 131 | } |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 132 | printk(BIOS_DEBUG, "Azalia: verb loaded.\n"); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 133 | } |
| 134 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 135 | static void codecs_init(struct device *dev, u8 *base, u32 codec_mask) |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 136 | { |
| 137 | int i; |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 138 | |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 139 | for (i = 2; i >= 0; i--) { |
| 140 | if (codec_mask & (1 << i)) |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 141 | codec_init(dev, base, i); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 142 | } |
| 143 | } |
| 144 | |
| 145 | static void azalia_init(struct device *dev) |
| 146 | { |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 147 | u8 *base; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 148 | struct resource *res; |
| 149 | u32 codec_mask; |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 150 | u8 reg8; |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 151 | |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 152 | // ESD |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 153 | pci_update_config32(dev, 0x134, ~(0xff << 16), 2 << 16); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 154 | |
| 155 | // Link1 description |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 156 | pci_update_config32(dev, 0x140, ~(0xff << 16), 2 << 16); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 157 | |
| 158 | // Port VC0 Resource Control Register |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 159 | pci_update_config32(dev, 0x114, ~(0xff << 0), 1); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 160 | |
| 161 | // VCi traffic class |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 162 | pci_or_config8(dev, 0x44, 7 << 0); // TC7 |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 163 | |
| 164 | // VCi Resource Control |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 165 | pci_or_config32(dev, 0x120, (1 << 31) | (1 << 24) | (0x80 << 0)); /* VCi ID and map */ |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 166 | |
| 167 | /* Set Bus Master */ |
Elyes HAOUAS | 1234925 | 2020-04-27 05:08:26 +0200 | [diff] [blame] | 168 | pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 169 | |
| 170 | pci_write_config8(dev, 0x3c, 0x0a); // unused? |
| 171 | |
| 172 | // TODO Actually check if we're AC97 or HDA instead of hardcoding this |
Stefan Reinauer | 38f147e | 2010-02-08 12:20:50 +0000 | [diff] [blame] | 173 | // here, in devicetree.cb and/or romstage.c. |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 174 | reg8 = pci_read_config8(dev, 0x40); |
| 175 | reg8 |= (1 << 3); // Clear Clock Detect Bit |
| 176 | pci_write_config8(dev, 0x40, reg8); |
| 177 | reg8 &= ~(1 << 3); // Keep CLKDETCLR from clearing the bit over and over |
| 178 | pci_write_config8(dev, 0x40, reg8); |
| 179 | reg8 |= (1 << 2); // Enable clock detection |
| 180 | pci_write_config8(dev, 0x40, reg8); |
| 181 | mdelay(1); |
| 182 | reg8 = pci_read_config8(dev, 0x40); |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 183 | printk(BIOS_DEBUG, "Azalia: codec type: %s\n", (reg8 & (1 << 1))?"Azalia":"AC97"); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 184 | |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 185 | // Select Azalia mode. This needs to be controlled via devicetree.cb |
| 186 | pci_or_config8(dev, 0x40, 1); // Audio Control |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 187 | |
Angel Pons | d19332c | 2020-06-08 12:32:54 +0200 | [diff] [blame] | 188 | // Docking not supported |
| 189 | pci_and_config8(dev, 0x4d, (u8)~(1 << 7)); // Docking Status |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 190 | |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 191 | res = find_resource(dev, PCI_BASE_ADDRESS_0); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 192 | if (!res) |
| 193 | return; |
| 194 | |
Elyes HAOUAS | 6ea24ff | 2020-08-11 09:21:24 +0200 | [diff] [blame] | 195 | // NOTE this will break as soon as the Azalia get's a bar above 4G. |
| 196 | // Is there anything we can do about it? |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 197 | base = res2mmio(res, 0, 0); |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 198 | printk(BIOS_DEBUG, "Azalia: base = %08x\n", (u32)base); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 199 | codec_mask = codec_detect(base); |
| 200 | |
| 201 | if (codec_mask) { |
Stefan Reinauer | c02b4fc | 2010-03-22 11:42:32 +0000 | [diff] [blame] | 202 | printk(BIOS_DEBUG, "Azalia: codec_mask = %02x\n", codec_mask); |
Stefan Reinauer | a8e1168 | 2009-03-11 14:54:18 +0000 | [diff] [blame] | 203 | codecs_init(dev, base, codec_mask); |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 204 | } |
| 205 | } |
| 206 | |
| 207 | static struct device_operations azalia_ops = { |
| 208 | .read_resources = pci_dev_read_resources, |
| 209 | .set_resources = pci_dev_set_resources, |
| 210 | .enable_resources = pci_dev_enable_resources, |
| 211 | .init = azalia_init, |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 212 | .enable = i82801gx_enable, |
Angel Pons | 1fc0edd | 2020-05-31 00:03:28 +0200 | [diff] [blame] | 213 | .ops_pci = &pci_dev_ops_pci, |
Stefan Reinauer | 679c9f9 | 2009-01-20 22:54:59 +0000 | [diff] [blame] | 214 | }; |
| 215 | |
| 216 | /* 82801GB/GR/GDH/GBM/GHM (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH) */ |
| 217 | static const struct pci_driver i82801gx_azalia __pci_driver = { |
| 218 | .ops = &azalia_ops, |
| 219 | .vendor = PCI_VENDOR_ID_INTEL, |
| 220 | .device = 0x27d8, |
| 221 | }; |