Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2014 - 2017 Intel Corporation. |
| 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 | |
| 17 | #include <stdint.h> |
| 18 | #include <arch/io.h> |
| 19 | #include <device/pci.h> |
| 20 | #include <device/pci_def.h> |
| 21 | #include <device/device.h> |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 22 | |
| 23 | #include <soc/iomap.h> |
| 24 | #include <soc/soc_util.h> |
| 25 | #include <soc/pmc.h> |
| 26 | #include <soc/smbus.h> |
| 27 | #include <soc/lpc.h> |
| 28 | #include <soc/pci_devs.h> |
| 29 | #include <soc/systemagent.h> |
| 30 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 31 | #ifdef __SIMPLE_DEVICE__ |
| 32 | pci_devfn_t get_hostbridge_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 33 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 34 | return PCI_DEV(0, SA_DEV, SA_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 35 | } |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 36 | #else |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 37 | struct device *get_hostbridge_dev(void) |
| 38 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 39 | return dev_find_slot(0, PCI_DEVFN(SA_DEV, SA_FUNC)); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 40 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 41 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 42 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 43 | #ifdef __SIMPLE_DEVICE__ |
| 44 | pci_devfn_t get_lpc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 45 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 46 | return PCI_DEV(0, LPC_DEV, LPC_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 47 | } |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 48 | #else |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 49 | struct device *get_lpc_dev(void) |
| 50 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 51 | return dev_find_slot(0, PCI_DEVFN(LPC_DEV, LPC_FUNC)); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 52 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 53 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 54 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 55 | #ifdef __SIMPLE_DEVICE__ |
| 56 | pci_devfn_t get_pmc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 57 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 58 | return PCI_DEV(0, PMC_DEV, PMC_FUNC); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 59 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 60 | #else |
| 61 | struct device *get_pmc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 62 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 63 | return dev_find_slot(0, PCI_DEVFN(PMC_DEV, PMC_FUNC)); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 64 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 65 | #endif |
| 66 | |
| 67 | #ifdef __SIMPLE_DEVICE__ |
| 68 | pci_devfn_t get_smbus_dev(void) |
| 69 | { |
| 70 | return PCI_DEV(0, SMBUS_DEV, SMBUS_FUNC); |
| 71 | } |
| 72 | #else |
| 73 | struct device *get_smbus_dev(void) |
| 74 | { |
| 75 | return dev_find_slot(0, PCI_DEVFN(SMBUS_DEV, SMBUS_FUNC)); |
| 76 | } |
| 77 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 78 | |
| 79 | uint32_t get_pciebase(void) |
| 80 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 81 | #ifdef __SIMPLE_DEVICE__ |
| 82 | pci_devfn_t dev; |
| 83 | #else |
| 84 | struct device *dev; |
| 85 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 86 | u32 pciexbar_reg; |
| 87 | |
| 88 | dev = get_hostbridge_dev(); |
| 89 | if (!dev) |
| 90 | return 0; |
| 91 | |
| 92 | pciexbar_reg = pci_read_config32(dev, PCIEXBAR); |
| 93 | |
| 94 | if (!(pciexbar_reg & (1 << 0))) |
| 95 | return 0; |
| 96 | |
| 97 | switch (pciexbar_reg & MASK_PCIEXBAR_LENGTH) { |
| 98 | case MASK_PCIEXBAR_LENGTH_256M: |
| 99 | pciexbar_reg &= MASK_PCIEXBAR_256M; |
| 100 | break; |
| 101 | case MASK_PCIEXBAR_LENGTH_128M: |
| 102 | pciexbar_reg &= MASK_PCIEXBAR_128M; |
| 103 | break; |
| 104 | case MASK_PCIEXBAR_LENGTH_64M: |
| 105 | pciexbar_reg &= MASK_PCIEXBAR_64M; |
| 106 | break; |
| 107 | default: |
| 108 | pciexbar_reg &= MASK_PCIEXBAR_256M; |
| 109 | break; |
| 110 | } |
| 111 | |
| 112 | return pciexbar_reg; |
| 113 | } |
| 114 | |
| 115 | uint32_t get_pcielength(void) |
| 116 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 117 | #ifdef __SIMPLE_DEVICE__ |
| 118 | pci_devfn_t dev; |
| 119 | #else |
| 120 | struct device *dev; |
| 121 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 122 | u32 pciexbar_reg; |
| 123 | |
| 124 | dev = get_hostbridge_dev(); |
| 125 | if (!dev) |
| 126 | return 0; |
| 127 | |
| 128 | pciexbar_reg = pci_read_config32(dev, PCIEXBAR); |
| 129 | |
| 130 | if (!(pciexbar_reg & (1 << 0))) |
| 131 | return 0; |
| 132 | |
| 133 | switch (pciexbar_reg & MASK_PCIEXBAR_LENGTH) { |
| 134 | case MASK_PCIEXBAR_LENGTH_256M: |
| 135 | pciexbar_reg = 256; |
| 136 | break; |
| 137 | case MASK_PCIEXBAR_LENGTH_128M: |
| 138 | pciexbar_reg = 128; |
| 139 | break; |
| 140 | case MASK_PCIEXBAR_LENGTH_64M: |
| 141 | pciexbar_reg = 64; |
| 142 | break; |
| 143 | default: |
| 144 | pciexbar_reg = 64; |
| 145 | break; |
| 146 | } |
| 147 | |
| 148 | return pciexbar_reg; |
| 149 | } |
| 150 | |
| 151 | uint32_t get_tseg_memory(void) |
| 152 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 153 | #ifdef __SIMPLE_DEVICE__ |
| 154 | pci_devfn_t dev; |
| 155 | #else |
| 156 | struct device *dev; |
| 157 | #endif |
| 158 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 159 | |
| 160 | if (!dev) |
| 161 | return 0; |
| 162 | |
| 163 | return pci_read_config32(dev, TSEGMB) & MASK_TSEGMB; |
| 164 | } |
| 165 | |
| 166 | uint32_t get_top_of_low_memory(void) |
| 167 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 168 | #ifdef __SIMPLE_DEVICE__ |
| 169 | pci_devfn_t dev; |
| 170 | #else |
| 171 | struct device *dev; |
| 172 | #endif |
| 173 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 174 | |
| 175 | if (!dev) |
| 176 | return 0; |
| 177 | |
| 178 | return pci_read_config32(dev, TOLUD) & MASK_TOLUD; |
| 179 | } |
| 180 | |
| 181 | uint64_t get_top_of_upper_memory(void) |
| 182 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 183 | #ifdef __SIMPLE_DEVICE__ |
| 184 | pci_devfn_t dev; |
| 185 | #else |
| 186 | struct device *dev; |
| 187 | #endif |
| 188 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 189 | |
| 190 | if (!dev) |
| 191 | return 0; |
| 192 | |
| 193 | return ((uint64_t)(pci_read_config32(dev, TOUUD_HI) & MASK_TOUUD_HI) |
| 194 | << 32) + |
| 195 | (uint64_t)(pci_read_config32(dev, TOUUD_LO) & MASK_TOUUD_LO); |
| 196 | } |
| 197 | |
| 198 | uint16_t get_pmbase(void) |
| 199 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 200 | #ifdef __SIMPLE_DEVICE__ |
| 201 | pci_devfn_t dev; |
| 202 | #else |
| 203 | struct device *dev; |
| 204 | #endif |
| 205 | dev = get_pmc_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 206 | |
| 207 | if (!dev) |
| 208 | return 0; |
| 209 | |
| 210 | return pci_read_config16(dev, PMC_ACPI_BASE) & 0xfff8; |
| 211 | } |
| 212 | |
| 213 | uint16_t get_tcobase(void) |
| 214 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 215 | #ifdef __SIMPLE_DEVICE__ |
| 216 | pci_devfn_t dev; |
| 217 | #else |
| 218 | struct device *dev; |
| 219 | #endif |
| 220 | dev = get_smbus_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 221 | |
| 222 | if (!dev) |
| 223 | return 0; |
| 224 | |
| 225 | return pci_read_config16(dev, TCOBASE) & MASK_TCOBASE; |
| 226 | } |
| 227 | |
| 228 | void mmio_andthenor32(void *addr, uint32_t val2and, uint32_t val2or) |
| 229 | { |
| 230 | uint32_t reg32; |
| 231 | |
| 232 | reg32 = read32(addr); |
| 233 | reg32 &= (uint32_t)val2and; |
| 234 | reg32 |= (uint32_t)val2or; |
| 235 | write32(addr, reg32); |
| 236 | } |
| 237 | |
| 238 | uint8_t silicon_stepping(void) |
| 239 | { |
| 240 | uint8_t revision_id; |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame^] | 241 | #ifdef __SIMPLE_DEVICE__ |
| 242 | pci_devfn_t dev; |
| 243 | #else |
| 244 | struct device *dev; |
| 245 | #endif |
| 246 | dev = get_lpc_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 247 | |
| 248 | if (!dev) |
| 249 | return 0; |
| 250 | |
| 251 | revision_id = pci_read_config8(dev, PCI_REVISION_ID); |
| 252 | |
| 253 | return revision_id; |
| 254 | } |
| 255 | |
| 256 | void *memcpy_s(void *dest, const void *src, size_t n) |
| 257 | { |
| 258 | uint8_t *dp; |
| 259 | const uint8_t *sp; |
| 260 | |
| 261 | dp = (uint8_t *)dest; |
| 262 | sp = (uint8_t *)src; |
| 263 | |
| 264 | if (!n) |
| 265 | return dest; |
| 266 | |
| 267 | if (n > UINT32_MAX) |
| 268 | return dest; |
| 269 | |
| 270 | if (!dp) |
| 271 | return dest; |
| 272 | |
| 273 | if (!sp) |
| 274 | return dest; |
| 275 | |
| 276 | /* |
| 277 | * overlap is undefined behavior, do not allow |
| 278 | */ |
| 279 | if (((dp > sp) && (dp < (sp + n))) || ((sp > dp) && (sp < (dp + n)))) |
| 280 | return dest; |
| 281 | |
| 282 | /* |
| 283 | * now perform the copy |
| 284 | */ |
| 285 | |
| 286 | /* Original memcpy() function */ |
| 287 | unsigned long d0, d1, d2; |
| 288 | |
| 289 | asm volatile( |
| 290 | #ifdef __x86_64__ |
| 291 | "rep ; movsd\n\t" |
| 292 | "mov %4,%%rcx\n\t" |
| 293 | #else |
| 294 | "rep ; movsl\n\t" |
| 295 | "movl %4,%%ecx\n\t" |
| 296 | #endif |
| 297 | "rep ; movsb\n\t" |
| 298 | : "=&c"(d0), "=&D"(d1), "=&S"(d2) |
| 299 | : "0"(n >> 2), "g"(n & 3), "1"(dest), "2"(src) |
| 300 | : "memory"); |
| 301 | |
| 302 | return dest; |
| 303 | } |