Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 4 | * Copyright (C) 2010-2017 Advanced Micro Devices, Inc. |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 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. |
| 14 | */ |
| 15 | |
| 16 | #include <console/console.h> |
| 17 | |
| 18 | #include <arch/io.h> |
Marshall Dawson | 8a906df | 2017-06-13 14:19:02 -0600 | [diff] [blame] | 19 | #include <bootstate.h> |
Marshall Dawson | e9b862e | 2017-09-22 15:14:46 -0600 | [diff] [blame] | 20 | #include <cpu/x86/smm.h> |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 21 | #include <device/device.h> |
| 22 | #include <device/pci.h> |
| 23 | #include <device/pci_ids.h> |
| 24 | #include <device/pci_ops.h> |
| 25 | #include <cbmem.h> |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 26 | #include <elog.h> |
Richard Spiegel | 2bbc3dc | 2017-12-06 16:14:58 -0700 | [diff] [blame] | 27 | #include <amdblocks/amd_pci_util.h> |
Richard Spiegel | 7108107 | 2018-07-26 10:51:38 -0700 | [diff] [blame] | 28 | #include <amdblocks/agesawrapper.h> |
Nico Huber | 73c1119 | 2018-10-06 18:20:47 +0200 | [diff] [blame] | 29 | #include <amdblocks/reset.h> |
Marc Jones | dfeb1c4 | 2017-08-07 19:08:24 -0600 | [diff] [blame] | 30 | #include <soc/southbridge.h> |
Richard Spiegel | b40e193 | 2018-10-24 12:51:21 -0700 | [diff] [blame] | 31 | #include <soc/smbus.h> |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 32 | #include <soc/smi.h> |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 33 | #include <soc/amd_pci_int_defs.h> |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 34 | #include <delay.h> |
| 35 | #include <soc/pci_devs.h> |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 36 | #include <agesa_headers.h> |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 37 | #include <soc/nvs.h> |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 38 | |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 39 | /* |
| 40 | * Table of devices that need their AOAC registers enabled and waited |
| 41 | * upon (usually about .55 milliseconds). Instead of individual delays |
| 42 | * waiting for each device to become available, a single delay will be |
Richard Spiegel | 6dfbb59 | 2018-03-15 15:45:44 -0700 | [diff] [blame] | 43 | * executed. |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 44 | */ |
| 45 | const static struct stoneyridge_aoac aoac_devs[] = { |
| 46 | { (FCH_AOAC_D3_CONTROL_UART0 + CONFIG_UART_FOR_CONSOLE * 2), |
| 47 | (FCH_AOAC_D3_STATE_UART0 + CONFIG_UART_FOR_CONSOLE * 2) }, |
| 48 | { FCH_AOAC_D3_CONTROL_AMBA, FCH_AOAC_D3_STATE_AMBA }, |
| 49 | { FCH_AOAC_D3_CONTROL_I2C0, FCH_AOAC_D3_STATE_I2C0 }, |
| 50 | { FCH_AOAC_D3_CONTROL_I2C1, FCH_AOAC_D3_STATE_I2C1 }, |
| 51 | { FCH_AOAC_D3_CONTROL_I2C2, FCH_AOAC_D3_STATE_I2C2 }, |
| 52 | { FCH_AOAC_D3_CONTROL_I2C3, FCH_AOAC_D3_STATE_I2C3 } |
| 53 | }; |
| 54 | |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 55 | static int is_sata_config(void) |
| 56 | { |
Richard Spiegel | bdd272a | 2018-10-16 13:53:05 -0700 | [diff] [blame] | 57 | return !((SataNativeIde == CONFIG_STONEYRIDGE_SATA_MODE) |
| 58 | || (SataLegacyIde == CONFIG_STONEYRIDGE_SATA_MODE)); |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 59 | } |
| 60 | |
Richard Spiegel | 7ea8e02 | 2018-01-16 14:40:10 -0700 | [diff] [blame] | 61 | static inline int sb_sata_enable(void) |
| 62 | { |
| 63 | /* True if IDE or AHCI. */ |
Richard Spiegel | bdd272a | 2018-10-16 13:53:05 -0700 | [diff] [blame] | 64 | return (SataNativeIde == CONFIG_STONEYRIDGE_SATA_MODE) || |
| 65 | (SataAhci == CONFIG_STONEYRIDGE_SATA_MODE); |
Richard Spiegel | 7ea8e02 | 2018-01-16 14:40:10 -0700 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | static inline int sb_ide_enable(void) |
| 69 | { |
| 70 | /* True if IDE or LEGACY IDE. */ |
Richard Spiegel | bdd272a | 2018-10-16 13:53:05 -0700 | [diff] [blame] | 71 | return (SataNativeIde == CONFIG_STONEYRIDGE_SATA_MODE) || |
| 72 | (SataLegacyIde == CONFIG_STONEYRIDGE_SATA_MODE); |
Richard Spiegel | 7ea8e02 | 2018-01-16 14:40:10 -0700 | [diff] [blame] | 73 | } |
| 74 | |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 75 | void SetFchResetParams(FCH_RESET_INTERFACE *params) |
| 76 | { |
Kyösti Mälkki | e737755 | 2018-06-21 16:20:55 +0300 | [diff] [blame] | 77 | const struct device *dev = pcidev_path_on_root(SATA_DEVFN); |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 78 | params->Xhci0Enable = IS_ENABLED(CONFIG_STONEYRIDGE_XHCI_ENABLE); |
Richard Spiegel | bb18b43 | 2018-08-03 10:37:28 -0700 | [diff] [blame] | 79 | if (dev && dev->enabled) { |
| 80 | params->SataEnable = sb_sata_enable(); |
| 81 | params->IdeEnable = sb_ide_enable(); |
| 82 | } else { |
| 83 | params->SataEnable = FALSE; |
| 84 | params->IdeEnable = FALSE; |
| 85 | } |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | void SetFchEnvParams(FCH_INTERFACE *params) |
| 89 | { |
Kyösti Mälkki | e737755 | 2018-06-21 16:20:55 +0300 | [diff] [blame] | 90 | const struct device *dev = pcidev_path_on_root(SATA_DEVFN); |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 91 | params->AzaliaController = AzEnable; |
| 92 | params->SataClass = CONFIG_STONEYRIDGE_SATA_MODE; |
Richard Spiegel | bb18b43 | 2018-08-03 10:37:28 -0700 | [diff] [blame] | 93 | if (dev && dev->enabled) { |
| 94 | params->SataEnable = is_sata_config(); |
| 95 | params->IdeEnable = !params->SataEnable; |
| 96 | params->SataIdeMode = (CONFIG_STONEYRIDGE_SATA_MODE == |
| 97 | SataLegacyIde); |
| 98 | } else { |
| 99 | params->SataEnable = FALSE; |
| 100 | params->IdeEnable = FALSE; |
| 101 | params->SataIdeMode = FALSE; |
| 102 | } |
Marshall Dawson | 2942db6 | 2017-12-14 10:00:27 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | void SetFchMidParams(FCH_INTERFACE *params) |
| 106 | { |
| 107 | SetFchEnvParams(params); |
| 108 | } |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 109 | |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 110 | /* |
| 111 | * Table of APIC register index and associated IRQ name. Using IDX_XXX_NAME |
Jonathan Neuschäfer | 5268b76 | 2018-02-12 12:24:25 +0100 | [diff] [blame] | 112 | * provides a visible association with the index, therefore helping |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 113 | * maintainability of table. If a new index/name is defined in |
| 114 | * amd_pci_int_defs.h, just add the pair at the end of this table. |
| 115 | * Order is not important. |
| 116 | */ |
| 117 | const static struct irq_idx_name irq_association[] = { |
Richard Spiegel | e89d444 | 2017-12-08 07:52:42 -0700 | [diff] [blame] | 118 | { PIRQ_A, "INTA#" }, |
| 119 | { PIRQ_B, "INTB#" }, |
| 120 | { PIRQ_C, "INTC#" }, |
| 121 | { PIRQ_D, "INTD#" }, |
| 122 | { PIRQ_E, "INTE#" }, |
| 123 | { PIRQ_F, "INTF#" }, |
| 124 | { PIRQ_G, "INTG#" }, |
| 125 | { PIRQ_H, "INTH#" }, |
| 126 | { PIRQ_MISC, "Misc" }, |
| 127 | { PIRQ_MISC0, "Misc0" }, |
| 128 | { PIRQ_MISC1, "Misc1" }, |
| 129 | { PIRQ_MISC2, "Misc2" }, |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 130 | { PIRQ_SIRQA, "Ser IRQ INTA" }, |
| 131 | { PIRQ_SIRQB, "Ser IRQ INTB" }, |
| 132 | { PIRQ_SIRQC, "Ser IRQ INTC" }, |
| 133 | { PIRQ_SIRQD, "Ser IRQ INTD" }, |
Richard Spiegel | e89d444 | 2017-12-08 07:52:42 -0700 | [diff] [blame] | 134 | { PIRQ_SCI, "SCI" }, |
| 135 | { PIRQ_SMBUS, "SMBUS" }, |
| 136 | { PIRQ_ASF, "ASF" }, |
| 137 | { PIRQ_HDA, "HDA" }, |
| 138 | { PIRQ_FC, "FC" }, |
| 139 | { PIRQ_PMON, "PerMon" }, |
| 140 | { PIRQ_SD, "SD" }, |
| 141 | { PIRQ_SDIO, "SDIOt" }, |
Richard Spiegel | e89d444 | 2017-12-08 07:52:42 -0700 | [diff] [blame] | 142 | { PIRQ_EHCI, "EHCI" }, |
| 143 | { PIRQ_XHCI, "XHCI" }, |
| 144 | { PIRQ_SATA, "SATA" }, |
| 145 | { PIRQ_GPIO, "GPIO" }, |
| 146 | { PIRQ_I2C0, "I2C0" }, |
| 147 | { PIRQ_I2C1, "I2C1" }, |
| 148 | { PIRQ_I2C2, "I2C2" }, |
| 149 | { PIRQ_I2C3, "I2C3" }, |
| 150 | { PIRQ_UART0, "UART0" }, |
| 151 | { PIRQ_UART1, "UART1" }, |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 152 | }; |
| 153 | |
Richard Spiegel | ebf3aa8 | 2017-11-24 07:47:42 -0700 | [diff] [blame] | 154 | /* |
| 155 | * Structure to simplify code obtaining the total of used wide IO |
| 156 | * registers and the size assigned to each. |
| 157 | */ |
| 158 | static struct wide_io_ioport_and_bits { |
| 159 | uint32_t enable; |
| 160 | uint16_t port; |
| 161 | uint8_t alt; |
| 162 | } wio_io_en[TOTAL_WIDEIO_PORTS] = { |
| 163 | { |
| 164 | LPC_WIDEIO0_ENABLE, |
| 165 | LPC_WIDEIO_GENERIC_PORT, |
| 166 | LPC_ALT_WIDEIO0_ENABLE |
| 167 | }, |
| 168 | { |
| 169 | LPC_WIDEIO1_ENABLE, |
| 170 | LPC_WIDEIO1_GENERIC_PORT, |
| 171 | LPC_ALT_WIDEIO1_ENABLE |
| 172 | }, |
| 173 | { |
| 174 | LPC_WIDEIO2_ENABLE, |
| 175 | LPC_WIDEIO2_GENERIC_PORT, |
| 176 | LPC_ALT_WIDEIO2_ENABLE |
| 177 | } |
| 178 | }; |
| 179 | |
Richard Spiegel | 376dc82 | 2017-12-01 08:24:26 -0700 | [diff] [blame] | 180 | const struct irq_idx_name *sb_get_apic_reg_association(size_t *size) |
| 181 | { |
| 182 | *size = ARRAY_SIZE(irq_association); |
| 183 | return irq_association; |
| 184 | } |
| 185 | |
Richard Spiegel | ebf3aa8 | 2017-11-24 07:47:42 -0700 | [diff] [blame] | 186 | /** |
| 187 | * @brief Find the size of a particular wide IO |
| 188 | * |
| 189 | * @param index = index of desired wide IO |
| 190 | * |
| 191 | * @return size of desired wide IO |
| 192 | */ |
| 193 | uint16_t sb_wideio_size(int index) |
| 194 | { |
| 195 | uint32_t enable_register; |
| 196 | uint16_t size = 0; |
| 197 | uint8_t alternate_register; |
| 198 | |
| 199 | if (index >= TOTAL_WIDEIO_PORTS) |
| 200 | return size; |
| 201 | enable_register = pci_read_config32(SOC_LPC_DEV, |
| 202 | LPC_IO_OR_MEM_DECODE_ENABLE); |
| 203 | alternate_register = pci_read_config8(SOC_LPC_DEV, |
| 204 | LPC_ALT_WIDEIO_RANGE_ENABLE); |
| 205 | if (enable_register & wio_io_en[index].enable) |
| 206 | size = (alternate_register & wio_io_en[index].alt) ? |
| 207 | 16 : 512; |
| 208 | return size; |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * @brief Identify if any LPC wide IO is covering the IO range |
| 213 | * |
| 214 | * @param start = start of IO range |
| 215 | * @param size = size of IO range |
| 216 | * |
| 217 | * @return Index of wide IO covering the range or error |
| 218 | */ |
| 219 | int sb_find_wideio_range(uint16_t start, uint16_t size) |
| 220 | { |
Richard Spiegel | ebf3aa8 | 2017-11-24 07:47:42 -0700 | [diff] [blame] | 221 | int i, index = WIDEIO_RANGE_ERROR; |
| 222 | uint16_t end, current_size, start_wideio, end_wideio; |
| 223 | |
| 224 | end = start + size; |
Richard Spiegel | ebf3aa8 | 2017-11-24 07:47:42 -0700 | [diff] [blame] | 225 | for (i = 0; i < TOTAL_WIDEIO_PORTS; i++) { |
| 226 | current_size = sb_wideio_size(i); |
| 227 | if (current_size == 0) |
| 228 | continue; |
| 229 | start_wideio = pci_read_config16(SOC_LPC_DEV, |
| 230 | wio_io_en[i].port); |
| 231 | end_wideio = start_wideio + current_size; |
| 232 | if ((start >= start_wideio) && (end <= end_wideio)) { |
| 233 | index = i; |
| 234 | break; |
| 235 | } |
| 236 | } |
| 237 | return index; |
| 238 | } |
| 239 | |
| 240 | /** |
| 241 | * @brief Program a LPC wide IO to support an IO range |
| 242 | * |
| 243 | * @param start = start of range to be routed through wide IO |
| 244 | * @param size = size of range to be routed through wide IO |
| 245 | * |
| 246 | * @return Index of wide IO register used or error |
| 247 | */ |
| 248 | int sb_set_wideio_range(uint16_t start, uint16_t size) |
| 249 | { |
| 250 | int i, index = WIDEIO_RANGE_ERROR; |
| 251 | uint32_t enable_register; |
| 252 | uint8_t alternate_register; |
| 253 | |
| 254 | enable_register = pci_read_config32(SOC_LPC_DEV, |
| 255 | LPC_IO_OR_MEM_DECODE_ENABLE); |
| 256 | alternate_register = pci_read_config8(SOC_LPC_DEV, |
| 257 | LPC_ALT_WIDEIO_RANGE_ENABLE); |
| 258 | for (i = 0; i < TOTAL_WIDEIO_PORTS; i++) { |
| 259 | if (enable_register & wio_io_en[i].enable) |
| 260 | continue; |
| 261 | index = i; |
| 262 | pci_write_config16(SOC_LPC_DEV, wio_io_en[i].port, start); |
| 263 | enable_register |= wio_io_en[i].enable; |
| 264 | pci_write_config32(SOC_LPC_DEV, LPC_IO_OR_MEM_DECODE_ENABLE, |
| 265 | enable_register); |
| 266 | if (size <= 16) |
| 267 | alternate_register |= wio_io_en[i].alt; |
| 268 | else |
| 269 | alternate_register &= ~wio_io_en[i].alt; |
| 270 | pci_write_config8(SOC_LPC_DEV, |
| 271 | LPC_ALT_WIDEIO_RANGE_ENABLE, |
| 272 | alternate_register); |
| 273 | break; |
| 274 | } |
| 275 | return index; |
| 276 | } |
| 277 | |
Garrett Kirkendall | a0ff6fc | 2018-03-06 09:23:47 -0600 | [diff] [blame] | 278 | static void power_on_aoac_device(int aoac_device_control_register) |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 279 | { |
Garrett Kirkendall | a0ff6fc | 2018-03-06 09:23:47 -0600 | [diff] [blame] | 280 | uint8_t byte; |
| 281 | uint8_t *register_pointer = (uint8_t *)(uintptr_t)AOAC_MMIO_BASE |
| 282 | + aoac_device_control_register; |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 283 | |
| 284 | /* Power on the UART and AMBA devices */ |
Garrett Kirkendall | a0ff6fc | 2018-03-06 09:23:47 -0600 | [diff] [blame] | 285 | byte = read8(register_pointer); |
| 286 | byte |= FCH_AOAC_PWR_ON_DEV; |
| 287 | write8(register_pointer, byte); |
| 288 | } |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 289 | |
Garrett Kirkendall | a0ff6fc | 2018-03-06 09:23:47 -0600 | [diff] [blame] | 290 | static bool is_aoac_device_enabled(int aoac_device_status_register) |
| 291 | { |
| 292 | uint8_t byte; |
| 293 | byte = read8((uint8_t *)(uintptr_t)AOAC_MMIO_BASE |
| 294 | + aoac_device_status_register); |
| 295 | byte &= (FCH_AOAC_PWR_RST_STATE | FCH_AOAC_RST_CLK_OK_STATE); |
| 296 | if (byte == (FCH_AOAC_PWR_RST_STATE | FCH_AOAC_RST_CLK_OK_STATE)) |
| 297 | return true; |
| 298 | else |
| 299 | return false; |
| 300 | } |
| 301 | |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 302 | void enable_aoac_devices(void) |
Garrett Kirkendall | a0ff6fc | 2018-03-06 09:23:47 -0600 | [diff] [blame] | 303 | { |
| 304 | bool status; |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 305 | int i; |
Garrett Kirkendall | a0ff6fc | 2018-03-06 09:23:47 -0600 | [diff] [blame] | 306 | |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 307 | for (i = 0; i < ARRAY_SIZE(aoac_devs); i++) |
| 308 | power_on_aoac_device(aoac_devs[i].enable); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 309 | |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 310 | /* Wait for AOAC devices to indicate power and clock OK */ |
| 311 | do { |
| 312 | udelay(100); |
| 313 | status = true; |
| 314 | for (i = 0; i < ARRAY_SIZE(aoac_devs); i++) |
| 315 | status &= is_aoac_device_enabled(aoac_devs[i].status); |
| 316 | } while (!status); |
| 317 | } |
| 318 | |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 319 | void sb_pci_port80(void) |
| 320 | { |
| 321 | u8 byte; |
| 322 | |
| 323 | byte = pci_read_config8(SOC_LPC_DEV, LPC_IO_OR_MEM_DEC_EN_HIGH); |
| 324 | byte &= ~DECODE_IO_PORT_ENABLE4_H; /* disable lpc port 80 */ |
| 325 | pci_write_config8(SOC_LPC_DEV, LPC_IO_OR_MEM_DEC_EN_HIGH, byte); |
| 326 | } |
| 327 | |
| 328 | void sb_lpc_port80(void) |
| 329 | { |
| 330 | u8 byte; |
| 331 | |
| 332 | /* Enable LPC controller */ |
| 333 | outb(PM_LPC_GATING, PM_INDEX); |
| 334 | byte = inb(PM_DATA); |
| 335 | byte |= PM_LPC_ENABLE; |
| 336 | outb(PM_LPC_GATING, PM_INDEX); |
| 337 | outb(byte, PM_DATA); |
| 338 | |
| 339 | /* Enable port 80 LPC decode in pci function 3 configuration space. */ |
| 340 | byte = pci_read_config8(SOC_LPC_DEV, LPC_IO_OR_MEM_DEC_EN_HIGH); |
| 341 | byte |= DECODE_IO_PORT_ENABLE4_H; /* enable port 80 */ |
| 342 | pci_write_config8(SOC_LPC_DEV, LPC_IO_OR_MEM_DEC_EN_HIGH, byte); |
| 343 | } |
| 344 | |
| 345 | void sb_lpc_decode(void) |
| 346 | { |
| 347 | u32 tmp = 0; |
| 348 | |
| 349 | /* Enable I/O decode to LPC bus */ |
| 350 | tmp = DECODE_ENABLE_PARALLEL_PORT0 | DECODE_ENABLE_PARALLEL_PORT2 |
| 351 | | DECODE_ENABLE_PARALLEL_PORT4 | DECODE_ENABLE_SERIAL_PORT0 |
| 352 | | DECODE_ENABLE_SERIAL_PORT1 | DECODE_ENABLE_SERIAL_PORT2 |
| 353 | | DECODE_ENABLE_SERIAL_PORT3 | DECODE_ENABLE_SERIAL_PORT4 |
| 354 | | DECODE_ENABLE_SERIAL_PORT5 | DECODE_ENABLE_SERIAL_PORT6 |
| 355 | | DECODE_ENABLE_SERIAL_PORT7 | DECODE_ENABLE_AUDIO_PORT0 |
| 356 | | DECODE_ENABLE_AUDIO_PORT1 | DECODE_ENABLE_AUDIO_PORT2 |
| 357 | | DECODE_ENABLE_AUDIO_PORT3 | DECODE_ENABLE_MSS_PORT2 |
| 358 | | DECODE_ENABLE_MSS_PORT3 | DECODE_ENABLE_FDC_PORT0 |
| 359 | | DECODE_ENABLE_FDC_PORT1 | DECODE_ENABLE_GAME_PORT |
| 360 | | DECODE_ENABLE_KBC_PORT | DECODE_ENABLE_ACPIUC_PORT |
| 361 | | DECODE_ENABLE_ADLIB_PORT; |
| 362 | |
| 363 | pci_write_config32(SOC_LPC_DEV, LPC_IO_PORT_DECODE_ENABLE, tmp); |
| 364 | } |
| 365 | |
Garrett Kirkendall | 9858bd2 | 2018-03-07 15:38:14 -0600 | [diff] [blame] | 366 | void sb_acpi_mmio_decode(void) |
| 367 | { |
| 368 | uint8_t byte; |
| 369 | |
| 370 | /* Enable ACPI MMIO range 0xfed80000 - 0xfed81fff */ |
| 371 | outb(PM_ISA_CONTROL, PM_INDEX); |
| 372 | byte = inb(PM_DATA); |
| 373 | byte |= MMIO_EN; |
| 374 | outb(PM_ISA_CONTROL, PM_INDEX); |
| 375 | outb(byte, PM_DATA); |
| 376 | } |
| 377 | |
Raul E Rangel | 5b05823 | 2018-06-28 16:31:45 -0600 | [diff] [blame] | 378 | static void sb_enable_cf9_io(void) |
| 379 | { |
| 380 | uint32_t reg = pm_read32(PM_DECODE_EN); |
| 381 | |
| 382 | pm_write32(PM_DECODE_EN, reg | CF9_IO_EN); |
| 383 | } |
| 384 | |
Raul E Rangel | 9abc3fe | 2018-06-28 16:31:45 -0600 | [diff] [blame] | 385 | static void sb_enable_legacy_io(void) |
| 386 | { |
| 387 | uint32_t reg = pm_read32(PM_DECODE_EN); |
| 388 | |
| 389 | pm_write32(PM_DECODE_EN, reg | LEGACY_IO_EN); |
| 390 | } |
| 391 | |
Richard Spiegel | c93d4ab | 2019-02-12 19:17:02 -0700 | [diff] [blame^] | 392 | void sb_clk_output_48Mhz(u32 osc) |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 393 | { |
| 394 | u32 ctrl; |
Garrett Kirkendall | d255830 | 2018-03-06 09:05:20 -0600 | [diff] [blame] | 395 | u32 *misc_clk_cntl_1_ptr = (u32 *)(uintptr_t)(MISC_MMIO_BASE |
Richard Spiegel | 6205221 | 2018-10-17 13:32:58 -0700 | [diff] [blame] | 396 | + MISC_CLK_CNTL1); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 397 | |
| 398 | /* |
Richard Spiegel | c93d4ab | 2019-02-12 19:17:02 -0700 | [diff] [blame^] | 399 | * Clear the disable for OSCOUT1 (signal typically named XnnM_25M_48M) |
| 400 | * or OSCOUT2 (USBCLK/25M_48M_OSC). The frequency defaults to 48MHz. |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 401 | */ |
Garrett Kirkendall | d255830 | 2018-03-06 09:05:20 -0600 | [diff] [blame] | 402 | ctrl = read32(misc_clk_cntl_1_ptr); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 403 | |
Richard Spiegel | c93d4ab | 2019-02-12 19:17:02 -0700 | [diff] [blame^] | 404 | switch (osc) { |
| 405 | case 1: |
| 406 | ctrl &= ~OSCOUT1_CLK_OUTPUT_ENB; |
| 407 | break; |
| 408 | case 2: |
| 409 | ctrl &= ~OSCOUT2_CLK_OUTPUT_ENB; |
| 410 | break; |
| 411 | default: |
| 412 | return; /* do nothing if invalid */ |
| 413 | } |
Garrett Kirkendall | d255830 | 2018-03-06 09:05:20 -0600 | [diff] [blame] | 414 | write32(misc_clk_cntl_1_ptr, ctrl); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 415 | } |
| 416 | |
| 417 | static uintptr_t sb_spibase(void) |
| 418 | { |
| 419 | u32 base, enables; |
| 420 | |
| 421 | /* Make sure the base address is predictable */ |
| 422 | base = pci_read_config32(SOC_LPC_DEV, SPIROM_BASE_ADDRESS_REGISTER); |
Patrick Georgi | 4fbefc5 | 2018-10-23 14:35:37 +0200 | [diff] [blame] | 423 | enables = base & SPI_PRESERVE_BITS; |
| 424 | base &= ~(SPI_PRESERVE_BITS | SPI_BASE_RESERVED); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 425 | |
| 426 | if (!base) { |
| 427 | base = SPI_BASE_ADDRESS; |
| 428 | pci_write_config32(SOC_LPC_DEV, SPIROM_BASE_ADDRESS_REGISTER, |
| 429 | base | enables | SPI_ROM_ENABLE); |
| 430 | /* PCI_COMMAND_MEMORY is read-only and enabled. */ |
| 431 | } |
| 432 | return (uintptr_t)base; |
| 433 | } |
| 434 | |
| 435 | void sb_set_spi100(u16 norm, u16 fast, u16 alt, u16 tpm) |
| 436 | { |
| 437 | uintptr_t base = sb_spibase(); |
Richard Spiegel | 9f25e9d | 2018-10-29 08:01:53 -0700 | [diff] [blame] | 438 | write16((void *)(base + SPI100_SPEED_CONFIG), |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 439 | (norm << SPI_NORM_SPEED_NEW_SH) | |
| 440 | (fast << SPI_FAST_SPEED_NEW_SH) | |
| 441 | (alt << SPI_ALT_SPEED_NEW_SH) | |
| 442 | (tpm << SPI_TPM_SPEED_NEW_SH)); |
Richard Spiegel | 9f25e9d | 2018-10-29 08:01:53 -0700 | [diff] [blame] | 443 | write16((void *)(base + SPI100_ENABLE), SPI_USE_SPI100); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | void sb_disable_4dw_burst(void) |
| 447 | { |
| 448 | uintptr_t base = sb_spibase(); |
Richard Spiegel | 9f25e9d | 2018-10-29 08:01:53 -0700 | [diff] [blame] | 449 | write16((void *)(base + SPI100_HOST_PREF_CONFIG), |
| 450 | read16((void *)(base + SPI100_HOST_PREF_CONFIG)) |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 451 | & ~SPI_RD4DW_EN_HOST); |
| 452 | } |
| 453 | |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 454 | void sb_read_mode(u32 mode) |
| 455 | { |
| 456 | uintptr_t base = sb_spibase(); |
Richard Spiegel | 9f25e9d | 2018-10-29 08:01:53 -0700 | [diff] [blame] | 457 | write32((void *)(base + SPI_CNTRL0), |
| 458 | (read32((void *)(base + SPI_CNTRL0)) |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 459 | & ~SPI_READ_MODE_MASK) | mode); |
| 460 | } |
| 461 | |
Garrett Kirkendall | 6575306 | 2018-03-07 16:12:11 -0600 | [diff] [blame] | 462 | /* |
| 463 | * Enable FCH to decode TPM associated Memory and IO regions |
| 464 | * |
| 465 | * Enable decoding of TPM cycles defined in TPM 1.2 spec |
| 466 | * Enable decoding of legacy TPM addresses: IO addresses 0x7f- |
| 467 | * 0x7e and 0xef-0xee. |
| 468 | * This function should be called if TPM is connected in any way to the FCH and |
| 469 | * conforms to the regions decoded. |
| 470 | * Absent any other routing configuration the TPM cycles will be claimed by the |
| 471 | * LPC bus |
| 472 | */ |
| 473 | void sb_tpm_decode(void) |
| 474 | { |
| 475 | u32 value; |
| 476 | |
| 477 | value = pci_read_config32(SOC_LPC_DEV, LPC_TRUSTED_PLATFORM_MODULE); |
| 478 | value |= TPM_12_EN | TPM_LEGACY_EN; |
| 479 | pci_write_config32(SOC_LPC_DEV, LPC_TRUSTED_PLATFORM_MODULE, value); |
| 480 | } |
| 481 | |
| 482 | /* |
| 483 | * Enable FCH to decode TPM associated Memory and IO regions to SPI |
| 484 | * |
| 485 | * This should be used if TPM is connected to SPI bus. |
| 486 | * Assumes SPI address space is already configured via a call to sb_spibase(). |
| 487 | */ |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 488 | void sb_tpm_decode_spi(void) |
| 489 | { |
Garrett Kirkendall | 6575306 | 2018-03-07 16:12:11 -0600 | [diff] [blame] | 490 | /* Enable TPM decoding to FCH */ |
| 491 | sb_tpm_decode(); |
| 492 | |
| 493 | /* Route TPM accesses to SPI */ |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 494 | u32 spibase = pci_read_config32(SOC_LPC_DEV, |
| 495 | SPIROM_BASE_ADDRESS_REGISTER); |
| 496 | pci_write_config32(SOC_LPC_DEV, SPIROM_BASE_ADDRESS_REGISTER, spibase |
| 497 | | ROUTE_TPM_2_SPI); |
| 498 | } |
| 499 | |
| 500 | /* |
| 501 | * Enable 4MB (LPC) ROM access at 0xFFC00000 - 0xFFFFFFFF. |
| 502 | * |
| 503 | * Hardware should enable LPC ROM by pin straps. This function does not |
| 504 | * handle the theoretically possible PCI ROM, FWH, or SPI ROM configurations. |
| 505 | * |
| 506 | * The southbridge power-on default is to map 512K ROM space. |
| 507 | * |
| 508 | */ |
| 509 | void sb_enable_rom(void) |
| 510 | { |
| 511 | u8 reg8; |
| 512 | |
| 513 | /* |
| 514 | * Decode variable LPC ROM address ranges 1 and 2. |
| 515 | * Bits 3-4 are not defined in any publicly available datasheet |
| 516 | */ |
| 517 | reg8 = pci_read_config8(SOC_LPC_DEV, LPC_IO_OR_MEM_DECODE_ENABLE); |
| 518 | reg8 |= (1 << 3) | (1 << 4); |
| 519 | pci_write_config8(SOC_LPC_DEV, LPC_IO_OR_MEM_DECODE_ENABLE, reg8); |
| 520 | |
| 521 | /* |
| 522 | * LPC ROM address range 1: |
| 523 | * Enable LPC ROM range mirroring start at 0x000e(0000). |
| 524 | */ |
| 525 | pci_write_config16(SOC_LPC_DEV, ROM_ADDRESS_RANGE1_START, 0x000e); |
| 526 | |
| 527 | /* Enable LPC ROM range mirroring end at 0x000f(ffff). */ |
| 528 | pci_write_config16(SOC_LPC_DEV, ROM_ADDRESS_RANGE1_END, 0x000f); |
| 529 | |
| 530 | /* |
| 531 | * LPC ROM address range 2: |
| 532 | * |
| 533 | * Enable LPC ROM range start at: |
| 534 | * 0xfff8(0000): 512KB |
| 535 | * 0xfff0(0000): 1MB |
| 536 | * 0xffe0(0000): 2MB |
| 537 | * 0xffc0(0000): 4MB |
| 538 | */ |
| 539 | pci_write_config16(SOC_LPC_DEV, ROM_ADDRESS_RANGE2_START, 0x10000 |
| 540 | - (CONFIG_COREBOOT_ROMSIZE_KB >> 6)); |
| 541 | |
| 542 | /* Enable LPC ROM range end at 0xffff(ffff). */ |
| 543 | pci_write_config16(SOC_LPC_DEV, ROM_ADDRESS_RANGE2_END, 0xffff); |
| 544 | } |
| 545 | |
Marc Jones | cfb1680 | 2018-04-20 16:27:41 -0600 | [diff] [blame] | 546 | static void sb_lpc_early_setup(void) |
| 547 | { |
| 548 | uint32_t dword; |
| 549 | |
| 550 | /* Enable SPI prefetch */ |
| 551 | dword = pci_read_config32(SOC_LPC_DEV, LPC_ROM_DMA_EC_HOST_CONTROL); |
| 552 | dword |= SPI_FROM_HOST_PREFETCH_EN | SPI_FROM_USB_PREFETCH_EN; |
| 553 | pci_write_config32(SOC_LPC_DEV, LPC_ROM_DMA_EC_HOST_CONTROL, dword); |
| 554 | |
| 555 | if (IS_ENABLED(CONFIG_STONEYRIDGE_LEGACY_FREE)) { |
| 556 | /* Decode SIOs at 2E/2F and 4E/4F */ |
| 557 | dword = pci_read_config32(SOC_LPC_DEV, |
| 558 | LPC_IO_OR_MEM_DECODE_ENABLE); |
| 559 | dword |= DECODE_ALTERNATE_SIO_ENABLE | DECODE_SIO_ENABLE; |
| 560 | pci_write_config32(SOC_LPC_DEV, |
| 561 | LPC_IO_OR_MEM_DECODE_ENABLE, dword); |
| 562 | } |
| 563 | } |
| 564 | |
Raul E Rangel | 7905341 | 2018-08-06 10:40:02 -0600 | [diff] [blame] | 565 | static void setup_spread_spectrum(int *reboot) |
Raul E Rangel | 6b0fc80 | 2018-08-02 15:56:34 -0600 | [diff] [blame] | 566 | { |
| 567 | uint16_t rstcfg = pm_read16(PWR_RESET_CFG); |
| 568 | |
| 569 | rstcfg &= ~TOGGLE_ALL_PWR_GOOD; |
| 570 | pm_write16(PWR_RESET_CFG, rstcfg); |
| 571 | |
| 572 | uint32_t cntl1 = misc_read32(MISC_CLK_CNTL1); |
| 573 | |
| 574 | if (cntl1 & CG1PLL_FBDIV_TEST) { |
| 575 | printk(BIOS_DEBUG, "Spread spectrum is ready\n"); |
| 576 | misc_write32(MISC_CGPLL_CONFIG1, |
| 577 | misc_read32(MISC_CGPLL_CONFIG1) | |
| 578 | CG1PLL_SPREAD_SPECTRUM_ENABLE); |
| 579 | |
| 580 | return; |
| 581 | } |
| 582 | |
| 583 | printk(BIOS_DEBUG, "Setting up spread spectrum\n"); |
| 584 | |
| 585 | uint32_t cfg6 = misc_read32(MISC_CGPLL_CONFIG6); |
| 586 | cfg6 &= ~CG1PLL_LF_MODE_MASK; |
Marshall Dawson | ecce847 | 2018-10-05 15:41:03 -0600 | [diff] [blame] | 587 | cfg6 |= (0x0f8 << CG1PLL_LF_MODE_SHIFT) & CG1PLL_LF_MODE_MASK; |
Raul E Rangel | 6b0fc80 | 2018-08-02 15:56:34 -0600 | [diff] [blame] | 588 | misc_write32(MISC_CGPLL_CONFIG6, cfg6); |
| 589 | |
| 590 | uint32_t cfg3 = misc_read32(MISC_CGPLL_CONFIG3); |
| 591 | cfg3 &= ~CG1PLL_REFDIV_MASK; |
| 592 | cfg3 |= (0x003 << CG1PLL_REFDIV_SHIFT) & CG1PLL_REFDIV_MASK; |
| 593 | cfg3 &= ~CG1PLL_FBDIV_MASK; |
Marshall Dawson | ecce847 | 2018-10-05 15:41:03 -0600 | [diff] [blame] | 594 | cfg3 |= (0x04b << CG1PLL_FBDIV_SHIFT) & CG1PLL_FBDIV_MASK; |
Raul E Rangel | 6b0fc80 | 2018-08-02 15:56:34 -0600 | [diff] [blame] | 595 | misc_write32(MISC_CGPLL_CONFIG3, cfg3); |
| 596 | |
| 597 | uint32_t cfg5 = misc_read32(MISC_CGPLL_CONFIG5); |
Marshall Dawson | edba21e | 2018-10-05 19:01:52 -0600 | [diff] [blame] | 598 | cfg5 &= ~SS_AMOUNT_NFRAC_SLIP_MASK; |
| 599 | cfg5 |= (0x2 << SS_AMOUNT_NFRAC_SLIP_SHIFT) & SS_AMOUNT_NFRAC_SLIP_MASK; |
Raul E Rangel | 6b0fc80 | 2018-08-02 15:56:34 -0600 | [diff] [blame] | 600 | misc_write32(MISC_CGPLL_CONFIG5, cfg5); |
| 601 | |
| 602 | uint32_t cfg4 = misc_read32(MISC_CGPLL_CONFIG4); |
Marshall Dawson | edba21e | 2018-10-05 19:01:52 -0600 | [diff] [blame] | 603 | cfg4 &= ~SS_AMOUNT_DSFRAC_MASK; |
| 604 | cfg4 |= (0xd000 << SS_AMOUNT_DSFRAC_SHIFT) & SS_AMOUNT_DSFRAC_MASK; |
| 605 | cfg4 &= ~SS_STEP_SIZE_DSFRAC_MASK; |
| 606 | cfg4 |= (0x02d5 << SS_STEP_SIZE_DSFRAC_SHIFT) |
| 607 | & SS_STEP_SIZE_DSFRAC_MASK; |
Raul E Rangel | 6b0fc80 | 2018-08-02 15:56:34 -0600 | [diff] [blame] | 608 | misc_write32(MISC_CGPLL_CONFIG4, cfg4); |
| 609 | |
| 610 | rstcfg |= TOGGLE_ALL_PWR_GOOD; |
| 611 | pm_write16(PWR_RESET_CFG, rstcfg); |
| 612 | |
| 613 | cntl1 |= CG1PLL_FBDIV_TEST; |
| 614 | misc_write32(MISC_CLK_CNTL1, cntl1); |
| 615 | |
Raul E Rangel | 7905341 | 2018-08-06 10:40:02 -0600 | [diff] [blame] | 616 | *reboot = 1; |
| 617 | } |
| 618 | |
| 619 | static void setup_misc(int *reboot) |
| 620 | { |
| 621 | /* Undocumented register */ |
| 622 | uint32_t reg = misc_read32(0x50); |
| 623 | if (!(reg & BIT(16))) { |
| 624 | reg |= BIT(16); |
| 625 | |
| 626 | misc_write32(0x50, reg); |
| 627 | *reboot = 1; |
| 628 | } |
Raul E Rangel | 6b0fc80 | 2018-08-02 15:56:34 -0600 | [diff] [blame] | 629 | } |
| 630 | |
Richard Spiegel | b40e193 | 2018-10-24 12:51:21 -0700 | [diff] [blame] | 631 | static void fch_smbus_init(void) |
| 632 | { |
| 633 | pm_write8(SMB_ASF_IO_BASE, SMB_BASE_ADDR >> 8); |
| 634 | smbus_write8(SMBUS_MMIO_BASE, SMBTIMING, SMB_SPEED_400KHZ); |
| 635 | /* Clear all SMBUS status bits */ |
| 636 | smbus_write8(SMBUS_MMIO_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR); |
| 637 | smbus_write8(SMBUS_MMIO_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR); |
| 638 | smbus_write8(ASF_MMIO_BASE, SMBHSTSTAT, SMBHST_STAT_CLEAR); |
| 639 | smbus_write8(ASF_MMIO_BASE, SMBSLVSTAT, SMBSLV_STAT_CLEAR); |
| 640 | } |
| 641 | |
Raul E Rangel | d820f4b8 | 2018-08-13 10:39:03 -0600 | [diff] [blame] | 642 | /* Before console init */ |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 643 | void bootblock_fch_early_init(void) |
| 644 | { |
Raul E Rangel | 7905341 | 2018-08-06 10:40:02 -0600 | [diff] [blame] | 645 | int reboot = 0; |
| 646 | |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 647 | sb_enable_rom(); |
| 648 | sb_lpc_port80(); |
| 649 | sb_lpc_decode(); |
Marc Jones | cfb1680 | 2018-04-20 16:27:41 -0600 | [diff] [blame] | 650 | sb_lpc_early_setup(); |
Garrett Kirkendall | 64294eb | 2018-03-16 13:00:46 -0500 | [diff] [blame] | 651 | sb_spibase(); |
Marc Jones | cfb1680 | 2018-04-20 16:27:41 -0600 | [diff] [blame] | 652 | sb_disable_4dw_burst(); /* Must be disabled on CZ(ST) */ |
Garrett Kirkendall | e7513e0d | 2018-03-14 12:01:36 -0500 | [diff] [blame] | 653 | sb_acpi_mmio_decode(); |
Richard Spiegel | b40e193 | 2018-10-24 12:51:21 -0700 | [diff] [blame] | 654 | fch_smbus_init(); |
Raul E Rangel | 5b05823 | 2018-06-28 16:31:45 -0600 | [diff] [blame] | 655 | sb_enable_cf9_io(); |
Raul E Rangel | 7905341 | 2018-08-06 10:40:02 -0600 | [diff] [blame] | 656 | setup_spread_spectrum(&reboot); |
| 657 | setup_misc(&reboot); |
| 658 | |
| 659 | if (reboot) |
Nico Huber | 73c1119 | 2018-10-06 18:20:47 +0200 | [diff] [blame] | 660 | warm_reset(); |
Raul E Rangel | 7905341 | 2018-08-06 10:40:02 -0600 | [diff] [blame] | 661 | |
Raul E Rangel | 9abc3fe | 2018-06-28 16:31:45 -0600 | [diff] [blame] | 662 | sb_enable_legacy_io(); |
Richard Spiegel | 0e0e93c | 2018-03-13 10:19:51 -0700 | [diff] [blame] | 663 | enable_aoac_devices(); |
Richard Spiegel | bec44f2 | 2017-11-24 07:41:29 -0700 | [diff] [blame] | 664 | } |
| 665 | |
Edward Hill | cc68034 | 2018-08-10 16:20:02 -0600 | [diff] [blame] | 666 | static void print_num_status_bits(int num_bits, uint32_t status, |
| 667 | const char *const bit_names[]) |
| 668 | { |
| 669 | int i; |
| 670 | |
| 671 | if (!status) |
| 672 | return; |
| 673 | |
| 674 | for (i = num_bits - 1; i >= 0; i--) { |
| 675 | if (status & (1 << i)) { |
| 676 | if (bit_names[i]) |
| 677 | printk(BIOS_DEBUG, "%s ", bit_names[i]); |
| 678 | else |
| 679 | printk(BIOS_DEBUG, "BIT%d ", i); |
| 680 | } |
| 681 | } |
| 682 | } |
| 683 | |
| 684 | static void sb_print_pmxc0_status(void) |
| 685 | { |
| 686 | /* PMxC0 S5/Reset Status shows the source of previous reset. */ |
| 687 | uint32_t pmxc0_status = pm_read32(PM_RST_STATUS); |
| 688 | |
Edward Hill | 917b400 | 2018-10-02 14:17:19 -0600 | [diff] [blame] | 689 | static const char *const pmxc0_status_bits[32] = { |
Edward Hill | cc68034 | 2018-08-10 16:20:02 -0600 | [diff] [blame] | 690 | [0] = "ThermalTrip", |
| 691 | [1] = "FourSecondPwrBtn", |
| 692 | [2] = "Shutdown", |
| 693 | [3] = "ThermalTripFromTemp", |
| 694 | [4] = "RemotePowerDownFromASF", |
| 695 | [5] = "ShutDownFan0", |
| 696 | [16] = "UserRst", |
| 697 | [17] = "SoftPciRst", |
| 698 | [18] = "DoInit", |
| 699 | [19] = "DoReset", |
| 700 | [20] = "DoFullReset", |
| 701 | [21] = "SleepReset", |
| 702 | [22] = "KbReset", |
| 703 | [23] = "LtReset", |
| 704 | [24] = "FailBootRst", |
| 705 | [25] = "WatchdogIssueReset", |
| 706 | [26] = "RemoteResetFromASF", |
| 707 | [27] = "SyncFlood", |
| 708 | [28] = "HangReset", |
| 709 | [29] = "EcWatchdogRst", |
Edward Hill | cc68034 | 2018-08-10 16:20:02 -0600 | [diff] [blame] | 710 | }; |
| 711 | |
Edward Hill | 917b400 | 2018-10-02 14:17:19 -0600 | [diff] [blame] | 712 | printk(BIOS_DEBUG, "PMxC0 STATUS: 0x%x ", pmxc0_status); |
Edward Hill | cc68034 | 2018-08-10 16:20:02 -0600 | [diff] [blame] | 713 | print_num_status_bits(ARRAY_SIZE(pmxc0_status_bits), pmxc0_status, |
| 714 | pmxc0_status_bits); |
Edward Hill | 917b400 | 2018-10-02 14:17:19 -0600 | [diff] [blame] | 715 | printk(BIOS_DEBUG, "\n"); |
Edward Hill | cc68034 | 2018-08-10 16:20:02 -0600 | [diff] [blame] | 716 | } |
| 717 | |
Raul E Rangel | d820f4b8 | 2018-08-13 10:39:03 -0600 | [diff] [blame] | 718 | /* After console init */ |
Edward Hill | cc68034 | 2018-08-10 16:20:02 -0600 | [diff] [blame] | 719 | void bootblock_fch_init(void) |
| 720 | { |
| 721 | sb_print_pmxc0_status(); |
| 722 | } |
Raul E Rangel | d820f4b8 | 2018-08-13 10:39:03 -0600 | [diff] [blame] | 723 | |
Elyes HAOUAS | c5ad267 | 2018-12-05 10:58:34 +0100 | [diff] [blame] | 724 | void sb_enable(struct device *dev) |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 725 | { |
Marc Jones | dfeb1c4 | 2017-08-07 19:08:24 -0600 | [diff] [blame] | 726 | printk(BIOS_DEBUG, "%s\n", __func__); |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 727 | } |
| 728 | |
Marc Jones | dfeb1c4 | 2017-08-07 19:08:24 -0600 | [diff] [blame] | 729 | static void sb_init_acpi_ports(void) |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 730 | { |
Marshall Dawson | 91b8041 | 2017-09-27 16:44:40 -0600 | [diff] [blame] | 731 | u32 reg; |
| 732 | |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 733 | /* We use some of these ports in SMM regardless of whether or not |
| 734 | * ACPI tables are generated. Enable these ports indiscriminately. |
| 735 | */ |
| 736 | |
| 737 | pm_write16(PM_EVT_BLK, ACPI_PM_EVT_BLK); |
| 738 | pm_write16(PM1_CNT_BLK, ACPI_PM1_CNT_BLK); |
| 739 | pm_write16(PM_TMR_BLK, ACPI_PM_TMR_BLK); |
| 740 | pm_write16(PM_GPE0_BLK, ACPI_GPE0_BLK); |
| 741 | /* CpuControl is in \_PR.CP00, 6 bytes */ |
| 742 | pm_write16(PM_CPU_CTRL, ACPI_CPU_CONTROL); |
| 743 | |
| 744 | if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER)) { |
Marshall Dawson | a05fdcb | 2017-09-27 15:01:37 -0600 | [diff] [blame] | 745 | /* APMC - SMI Command Port */ |
Marshall Dawson | e9b862e | 2017-09-22 15:14:46 -0600 | [diff] [blame] | 746 | pm_write16(PM_ACPI_SMI_CMD, APM_CNT); |
Marshall Dawson | a05fdcb | 2017-09-27 15:01:37 -0600 | [diff] [blame] | 747 | configure_smi(SMITYPE_SMI_CMD_PORT, SMI_MODE_SMI); |
Marshall Dawson | 91b8041 | 2017-09-27 16:44:40 -0600 | [diff] [blame] | 748 | |
| 749 | /* SMI on SlpTyp requires sending SMI before completion |
| 750 | * response of the I/O write. The BKDG also specifies |
| 751 | * clearing ForceStpClkRetry for SMI trapping. |
| 752 | */ |
| 753 | reg = pm_read32(PM_PCI_CTRL); |
| 754 | reg |= FORCE_SLPSTATE_RETRY; |
| 755 | reg &= ~FORCE_STPCLK_RETRY; |
| 756 | pm_write32(PM_PCI_CTRL, reg); |
| 757 | |
| 758 | /* Disable SlpTyp feature */ |
| 759 | reg = pm_read8(PM_RST_CTRL1); |
| 760 | reg &= ~SLPTYPE_CONTROL_EN; |
| 761 | pm_write8(PM_RST_CTRL1, reg); |
| 762 | |
| 763 | configure_smi(SMITYPE_SLP_TYP, SMI_MODE_SMI); |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 764 | } else { |
| 765 | pm_write16(PM_ACPI_SMI_CMD, 0); |
| 766 | } |
| 767 | |
Marshall Dawson | 5e2e74f | 2017-11-10 09:59:56 -0700 | [diff] [blame] | 768 | /* Decode ACPI registers and enable standard features */ |
| 769 | pm_write8(PM_ACPI_CONF, PM_ACPI_DECODE_STD | |
| 770 | PM_ACPI_GLOBAL_EN | |
| 771 | PM_ACPI_RTC_EN_EN | |
| 772 | PM_ACPI_TIMER_EN_EN); |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 773 | } |
| 774 | |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 775 | static uint16_t reset_pm1_status(void) |
| 776 | { |
Richard Spiegel | e24d795 | 2018-10-26 13:25:01 -0700 | [diff] [blame] | 777 | uint16_t pm1_sts = acpi_read16(MMIO_ACPI_PM1_STS); |
| 778 | acpi_write16(MMIO_ACPI_PM1_STS, pm1_sts); |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 779 | return pm1_sts; |
| 780 | } |
| 781 | |
| 782 | static uint16_t print_pm1_status(uint16_t pm1_sts) |
| 783 | { |
Edward Hill | 917b400 | 2018-10-02 14:17:19 -0600 | [diff] [blame] | 784 | static const char *const pm1_sts_bits[16] = { |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 785 | [0] = "TMROF", |
| 786 | [4] = "BMSTATUS", |
| 787 | [5] = "GBL", |
| 788 | [8] = "PWRBTN", |
| 789 | [10] = "RTC", |
| 790 | [14] = "PCIEXPWAK", |
| 791 | [15] = "WAK", |
| 792 | }; |
| 793 | |
| 794 | if (!pm1_sts) |
| 795 | return 0; |
| 796 | |
Edward Hill | 917b400 | 2018-10-02 14:17:19 -0600 | [diff] [blame] | 797 | printk(BIOS_DEBUG, "PM1_STS: "); |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 798 | print_num_status_bits(ARRAY_SIZE(pm1_sts_bits), pm1_sts, pm1_sts_bits); |
Edward Hill | 917b400 | 2018-10-02 14:17:19 -0600 | [diff] [blame] | 799 | printk(BIOS_DEBUG, "\n"); |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 800 | |
| 801 | return pm1_sts; |
| 802 | } |
| 803 | |
| 804 | static void sb_log_pm1_status(uint16_t pm1_sts) |
| 805 | { |
| 806 | if (!IS_ENABLED(CONFIG_ELOG)) |
| 807 | return; |
| 808 | |
Daniel Kurtz | b6fdd22 | 2018-05-24 15:52:45 -0600 | [diff] [blame] | 809 | if (pm1_sts & WAK_STS) |
| 810 | elog_add_event_byte(ELOG_TYPE_ACPI_WAKE, |
| 811 | acpi_is_wakeup_s3() ? ACPI_S3 : ACPI_S5); |
| 812 | |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 813 | if (pm1_sts & PWRBTN_STS) |
| 814 | elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0); |
| 815 | |
| 816 | if (pm1_sts & RTC_STS) |
| 817 | elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0); |
| 818 | |
| 819 | if (pm1_sts & PCIEXPWAK_STS) |
| 820 | elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0); |
| 821 | } |
| 822 | |
Richard Spiegel | 572f498 | 2018-05-25 15:49:33 -0700 | [diff] [blame] | 823 | static void sb_save_sws(uint16_t pm1_status) |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 824 | { |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 825 | struct soc_power_reg *sws; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 826 | uint32_t reg32; |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 827 | uint16_t reg16; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 828 | |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 829 | sws = cbmem_add(CBMEM_ID_POWER_STATE, sizeof(struct soc_power_reg)); |
| 830 | if (sws == NULL) |
| 831 | return; |
| 832 | sws->pm1_sts = pm1_status; |
Richard Spiegel | e24d795 | 2018-10-26 13:25:01 -0700 | [diff] [blame] | 833 | sws->pm1_en = acpi_read16(MMIO_ACPI_PM1_EN); |
| 834 | reg32 = acpi_read32(MMIO_ACPI_GPE0_STS); |
| 835 | acpi_write32(MMIO_ACPI_GPE0_STS, reg32); |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 836 | sws->gpe0_sts = reg32; |
Richard Spiegel | e24d795 | 2018-10-26 13:25:01 -0700 | [diff] [blame] | 837 | sws->gpe0_en = acpi_read32(MMIO_ACPI_GPE0_EN); |
| 838 | reg16 = acpi_read16(MMIO_ACPI_PM1_CNT_BLK); |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 839 | reg16 &= SLP_TYP; |
| 840 | sws->wake_from = reg16 >> SLP_TYP_SHIFT; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 841 | } |
| 842 | |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 843 | static void sb_clear_pm1_status(void) |
| 844 | { |
| 845 | uint16_t pm1_sts = reset_pm1_status(); |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 846 | |
| 847 | sb_save_sws(pm1_sts); |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 848 | sb_log_pm1_status(pm1_sts); |
| 849 | print_pm1_status(pm1_sts); |
| 850 | } |
| 851 | |
Richard Spiegel | 572f498 | 2018-05-25 15:49:33 -0700 | [diff] [blame] | 852 | static int get_index_bit(uint32_t value, uint16_t limit) |
| 853 | { |
| 854 | uint16_t i; |
| 855 | uint32_t t; |
| 856 | |
Richard Spiegel | ef73cb8 | 2018-06-19 07:40:18 -0700 | [diff] [blame] | 857 | if (limit >= TOTAL_BITS(uint32_t)) |
Richard Spiegel | 572f498 | 2018-05-25 15:49:33 -0700 | [diff] [blame] | 858 | return -1; |
| 859 | |
| 860 | /* get a mask of valid bits. Ex limit = 3, set bits 0-2 */ |
| 861 | t = (1 << limit) - 1; |
| 862 | if ((value & t) == 0) |
| 863 | return -1; |
| 864 | t = 1; |
| 865 | for (i = 0; i < limit; i++) { |
| 866 | if (value & t) |
| 867 | break; |
| 868 | t <<= 1; |
| 869 | } |
| 870 | return i; |
| 871 | } |
| 872 | |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 873 | static void set_nvs_sws(void *unused) |
| 874 | { |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 875 | struct soc_power_reg *sws; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 876 | struct global_nvs_t *gnvs; |
Richard Spiegel | 572f498 | 2018-05-25 15:49:33 -0700 | [diff] [blame] | 877 | int index; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 878 | |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 879 | sws = cbmem_find(CBMEM_ID_POWER_STATE); |
| 880 | if (sws == NULL) |
| 881 | return; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 882 | gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); |
| 883 | if (gnvs == NULL) |
| 884 | return; |
| 885 | |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 886 | index = get_index_bit(sws->pm1_sts & sws->pm1_en, PM1_LIMIT); |
Richard Spiegel | 572f498 | 2018-05-25 15:49:33 -0700 | [diff] [blame] | 887 | if (index < 0) |
| 888 | gnvs->pm1i = ~0ULL; |
| 889 | else |
| 890 | gnvs->pm1i = index; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 891 | |
Richard Spiegel | 35282a0 | 2018-06-14 14:57:54 -0700 | [diff] [blame] | 892 | index = get_index_bit(sws->gpe0_sts & sws->gpe0_en, GPE0_LIMIT); |
Richard Spiegel | 572f498 | 2018-05-25 15:49:33 -0700 | [diff] [blame] | 893 | if (index < 0) |
| 894 | gnvs->gpei = ~0ULL; |
| 895 | else |
| 896 | gnvs->gpei = index; |
Richard Spiegel | dbee8ae | 2018-05-09 17:34:04 -0700 | [diff] [blame] | 897 | } |
| 898 | |
| 899 | BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, set_nvs_sws, NULL); |
| 900 | |
Marc Jones | dfeb1c4 | 2017-08-07 19:08:24 -0600 | [diff] [blame] | 901 | void southbridge_init(void *chip_info) |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 902 | { |
Marc Jones | dfeb1c4 | 2017-08-07 19:08:24 -0600 | [diff] [blame] | 903 | sb_init_acpi_ports(); |
Marshall Dawson | 70f051f | 2018-03-20 10:27:41 -0600 | [diff] [blame] | 904 | sb_clear_pm1_status(); |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 905 | } |
| 906 | |
Marshall Dawson | 1d9a46b | 2018-09-26 16:23:41 -0600 | [diff] [blame] | 907 | static void set_sb_final_nvs(void) |
| 908 | { |
| 909 | uintptr_t amdfw_rom; |
| 910 | uintptr_t xhci_fw; |
| 911 | uintptr_t fwaddr; |
| 912 | size_t fwsize; |
Richard Spiegel | 41baf0c | 2018-10-22 13:57:18 -0700 | [diff] [blame] | 913 | const struct device *sd, *sata; |
Marshall Dawson | 1d9a46b | 2018-09-26 16:23:41 -0600 | [diff] [blame] | 914 | |
| 915 | struct global_nvs_t *gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); |
| 916 | if (gnvs == NULL) |
| 917 | return; |
| 918 | |
| 919 | gnvs->aoac.ic0e = is_aoac_device_enabled(FCH_AOAC_D3_STATE_I2C0); |
| 920 | gnvs->aoac.ic1e = is_aoac_device_enabled(FCH_AOAC_D3_STATE_I2C1); |
| 921 | gnvs->aoac.ic2e = is_aoac_device_enabled(FCH_AOAC_D3_STATE_I2C2); |
| 922 | gnvs->aoac.ic3e = is_aoac_device_enabled(FCH_AOAC_D3_STATE_I2C3); |
| 923 | gnvs->aoac.ut0e = is_aoac_device_enabled(FCH_AOAC_D3_STATE_UART0); |
| 924 | gnvs->aoac.ut1e = is_aoac_device_enabled(FCH_AOAC_D3_STATE_UART1); |
| 925 | gnvs->aoac.ehce = is_aoac_device_enabled(FCH_AOAC_D3_STATE_USB2); |
| 926 | gnvs->aoac.xhce = is_aoac_device_enabled(FCH_AOAC_D3_STATE_USB3); |
| 927 | /* Rely on these being in sync with devicetree */ |
Kyösti Mälkki | e737755 | 2018-06-21 16:20:55 +0300 | [diff] [blame] | 928 | sd = pcidev_path_on_root(SD_DEVFN); |
Marshall Dawson | 1d9a46b | 2018-09-26 16:23:41 -0600 | [diff] [blame] | 929 | gnvs->aoac.st_e = sd && sd->enabled ? 1 : 0; |
Kyösti Mälkki | e737755 | 2018-06-21 16:20:55 +0300 | [diff] [blame] | 930 | sata = pcidev_path_on_root(SATA_DEVFN); |
Marshall Dawson | 1d9a46b | 2018-09-26 16:23:41 -0600 | [diff] [blame] | 931 | gnvs->aoac.sd_e = sata && sata->enabled ? 1 : 0; |
| 932 | gnvs->aoac.espi = 1; |
| 933 | |
| 934 | amdfw_rom = 0x20000 - (0x80000 << CONFIG_AMD_FWM_POSITION_INDEX); |
| 935 | xhci_fw = read32((void *)(amdfw_rom + XHCI_FW_SIG_OFFSET)); |
| 936 | |
| 937 | fwaddr = 2 + read16((void *)(xhci_fw + XHCI_FW_ADDR_OFFSET |
| 938 | + XHCI_FW_BOOTRAM_SIZE)); |
| 939 | fwsize = read16((void *)(xhci_fw + XHCI_FW_SIZE_OFFSET |
| 940 | + XHCI_FW_BOOTRAM_SIZE)); |
| 941 | gnvs->fw00 = 0; |
| 942 | gnvs->fw01 = ((32 * KiB) << 16) + 0; |
| 943 | gnvs->fw02 = fwaddr + XHCI_FW_BOOTRAM_SIZE; |
| 944 | gnvs->fw03 = fwsize << 16; |
| 945 | |
Marshall Dawson | 1d9a46b | 2018-09-26 16:23:41 -0600 | [diff] [blame] | 946 | gnvs->eh10 = pci_read_config32(SOC_EHCI1_DEV, PCI_BASE_ADDRESS_0) |
| 947 | & ~PCI_BASE_ADDRESS_MEM_ATTR_MASK; |
| 948 | } |
| 949 | |
Marc Jones | dfeb1c4 | 2017-08-07 19:08:24 -0600 | [diff] [blame] | 950 | void southbridge_final(void *chip_info) |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 951 | { |
Richard Spiegel | 6a38914 | 2018-03-05 14:28:10 -0700 | [diff] [blame] | 952 | uint8_t restored_power = PM_S5_AT_POWER_RECOVERY; |
| 953 | |
Richard Spiegel | 6a38914 | 2018-03-05 14:28:10 -0700 | [diff] [blame] | 954 | if (IS_ENABLED(CONFIG_MAINBOARD_POWER_RESTORE)) |
| 955 | restored_power = PM_RESTORE_S0_IF_PREV_S0; |
| 956 | pm_write8(PM_RTC_SHADOW, restored_power); |
Marshall Dawson | 1d9a46b | 2018-09-26 16:23:41 -0600 | [diff] [blame] | 957 | |
| 958 | set_sb_final_nvs(); |
Marc Jones | 2448484 | 2017-05-04 21:17:45 -0600 | [diff] [blame] | 959 | } |
Marshall Dawson | 8a906df | 2017-06-13 14:19:02 -0600 | [diff] [blame] | 960 | |
| 961 | /* |
| 962 | * Update the PCI devices with a valid IRQ number |
| 963 | * that is set in the mainboard PCI_IRQ structures. |
| 964 | */ |
| 965 | static void set_pci_irqs(void *unused) |
| 966 | { |
| 967 | /* Write PCI_INTR regs 0xC00/0xC01 */ |
| 968 | write_pci_int_table(); |
| 969 | |
| 970 | /* Write IRQs for all devicetree enabled devices */ |
| 971 | write_pci_cfg_irqs(); |
| 972 | } |
| 973 | |
| 974 | /* |
| 975 | * Hook this function into the PCI state machine |
| 976 | * on entry into BS_DEV_ENABLE. |
| 977 | */ |
| 978 | BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, set_pci_irqs, NULL); |