1 /* 2 * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> 3 * Andreas Heppel <aheppel@sysgo.de> 4 * 5 * (C) Copyright 2002 6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 7 * 8 * See file CREDITS for list of people who contributed to this 9 * project. 10 * 11 * This program is free software; you can redistribute it and/or 12 * modify it under the terms of the GNU General Public License as 13 * published by the Free Software Foundation; either version 2 of 14 * the License, or (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * aloong with this program; if not, write to the Free Software 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 24 * MA 02111-1307 USA 25 */ 26 27 #ifndef _PCI_H 28 #define _PCI_H 29 30 /* 31 * Under PCI, each device has 256 bytes of configuration address space, 32 * of which the first 64 bytes are standardized as follows: 33 */ 34 #define PCI_VENDOR_ID 0x00 /* 16 bits */ 35 #define PCI_DEVICE_ID 0x02 /* 16 bits */ 36 #define PCI_COMMAND 0x04 /* 16 bits */ 37 #define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */ 38 #define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */ 39 #define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */ 40 #define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */ 41 #define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */ 42 #define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */ 43 #define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */ 44 #define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */ 45 #define PCI_COMMAND_SERR 0x100 /* Enable SERR */ 46 #define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */ 47 48 #define PCI_STATUS 0x06 /* 16 bits */ 49 #define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */ 50 #define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */ 51 #define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */ 52 #define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */ 53 #define PCI_STATUS_PARITY 0x100 /* Detected parity error */ 54 #define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */ 55 #define PCI_STATUS_DEVSEL_FAST 0x000 56 #define PCI_STATUS_DEVSEL_MEDIUM 0x200 57 #define PCI_STATUS_DEVSEL_SLOW 0x400 58 #define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */ 59 #define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */ 60 #define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */ 61 #define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */ 62 #define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */ 63 64 #define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8 65 revision */ 66 #define PCI_REVISION_ID 0x08 /* Revision ID */ 67 #define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */ 68 #define PCI_CLASS_DEVICE 0x0a /* Device class */ 69 #define PCI_CLASS_CODE 0x0b /* Device class code */ 70 #define PCI_CLASS_CODE_TOO_OLD 0x00 71 #define PCI_CLASS_CODE_STORAGE 0x01 72 #define PCI_CLASS_CODE_NETWORK 0x02 73 #define PCI_CLASS_CODE_DISPLAY 0x03 74 #define PCI_CLASS_CODE_MULTIMEDIA 0x04 75 #define PCI_CLASS_CODE_MEMORY 0x05 76 #define PCI_CLASS_CODE_BRIDGE 0x06 77 #define PCI_CLASS_CODE_COMM 0x07 78 #define PCI_CLASS_CODE_PERIPHERAL 0x08 79 #define PCI_CLASS_CODE_INPUT 0x09 80 #define PCI_CLASS_CODE_DOCKING 0x0A 81 #define PCI_CLASS_CODE_PROCESSOR 0x0B 82 #define PCI_CLASS_CODE_SERIAL 0x0C 83 #define PCI_CLASS_CODE_WIRELESS 0x0D 84 #define PCI_CLASS_CODE_I2O 0x0E 85 #define PCI_CLASS_CODE_SATELLITE 0x0F 86 #define PCI_CLASS_CODE_CRYPTO 0x10 87 #define PCI_CLASS_CODE_DATA 0x11 88 /* Base Class 0x12 - 0xFE is reserved */ 89 #define PCI_CLASS_CODE_OTHER 0xFF 90 91 #define PCI_CLASS_SUB_CODE 0x0a /* Device sub-class code */ 92 #define PCI_CLASS_SUB_CODE_TOO_OLD_NOTVGA 0x00 93 #define PCI_CLASS_SUB_CODE_TOO_OLD_VGA 0x01 94 #define PCI_CLASS_SUB_CODE_STORAGE_SCSI 0x00 95 #define PCI_CLASS_SUB_CODE_STORAGE_IDE 0x01 96 #define PCI_CLASS_SUB_CODE_STORAGE_FLOPPY 0x02 97 #define PCI_CLASS_SUB_CODE_STORAGE_IPIBUS 0x03 98 #define PCI_CLASS_SUB_CODE_STORAGE_RAID 0x04 99 #define PCI_CLASS_SUB_CODE_STORAGE_ATA 0x05 100 #define PCI_CLASS_SUB_CODE_STORAGE_SATA 0x06 101 #define PCI_CLASS_SUB_CODE_STORAGE_SAS 0x07 102 #define PCI_CLASS_SUB_CODE_STORAGE_OTHER 0x80 103 #define PCI_CLASS_SUB_CODE_NETWORK_ETHERNET 0x00 104 #define PCI_CLASS_SUB_CODE_NETWORK_TOKENRING 0x01 105 #define PCI_CLASS_SUB_CODE_NETWORK_FDDI 0x02 106 #define PCI_CLASS_SUB_CODE_NETWORK_ATM 0x03 107 #define PCI_CLASS_SUB_CODE_NETWORK_ISDN 0x04 108 #define PCI_CLASS_SUB_CODE_NETWORK_WORLDFIP 0x05 109 #define PCI_CLASS_SUB_CODE_NETWORK_PICMG 0x06 110 #define PCI_CLASS_SUB_CODE_NETWORK_OTHER 0x80 111 #define PCI_CLASS_SUB_CODE_DISPLAY_VGA 0x00 112 #define PCI_CLASS_SUB_CODE_DISPLAY_XGA 0x01 113 #define PCI_CLASS_SUB_CODE_DISPLAY_3D 0x02 114 #define PCI_CLASS_SUB_CODE_DISPLAY_OTHER 0x80 115 #define PCI_CLASS_SUB_CODE_MULTIMEDIA_VIDEO 0x00 116 #define PCI_CLASS_SUB_CODE_MULTIMEDIA_AUDIO 0x01 117 #define PCI_CLASS_SUB_CODE_MULTIMEDIA_PHONE 0x02 118 #define PCI_CLASS_SUB_CODE_MULTIMEDIA_OTHER 0x80 119 #define PCI_CLASS_SUB_CODE_MEMORY_RAM 0x00 120 #define PCI_CLASS_SUB_CODE_MEMORY_FLASH 0x01 121 #define PCI_CLASS_SUB_CODE_MEMORY_OTHER 0x80 122 #define PCI_CLASS_SUB_CODE_BRIDGE_HOST 0x00 123 #define PCI_CLASS_SUB_CODE_BRIDGE_ISA 0x01 124 #define PCI_CLASS_SUB_CODE_BRIDGE_EISA 0x02 125 #define PCI_CLASS_SUB_CODE_BRIDGE_MCA 0x03 126 #define PCI_CLASS_SUB_CODE_BRIDGE_PCI 0x04 127 #define PCI_CLASS_SUB_CODE_BRIDGE_PCMCIA 0x05 128 #define PCI_CLASS_SUB_CODE_BRIDGE_NUBUS 0x06 129 #define PCI_CLASS_SUB_CODE_BRIDGE_CARDBUS 0x07 130 #define PCI_CLASS_SUB_CODE_BRIDGE_RACEWAY 0x08 131 #define PCI_CLASS_SUB_CODE_BRIDGE_SEMI_PCI 0x09 132 #define PCI_CLASS_SUB_CODE_BRIDGE_INFINIBAND 0x0A 133 #define PCI_CLASS_SUB_CODE_BRIDGE_OTHER 0x80 134 #define PCI_CLASS_SUB_CODE_COMM_SERIAL 0x00 135 #define PCI_CLASS_SUB_CODE_COMM_PARALLEL 0x01 136 #define PCI_CLASS_SUB_CODE_COMM_MULTIPORT 0x02 137 #define PCI_CLASS_SUB_CODE_COMM_MODEM 0x03 138 #define PCI_CLASS_SUB_CODE_COMM_GPIB 0x04 139 #define PCI_CLASS_SUB_CODE_COMM_SMARTCARD 0x05 140 #define PCI_CLASS_SUB_CODE_COMM_OTHER 0x80 141 #define PCI_CLASS_SUB_CODE_PERIPHERAL_PIC 0x00 142 #define PCI_CLASS_SUB_CODE_PERIPHERAL_DMA 0x01 143 #define PCI_CLASS_SUB_CODE_PERIPHERAL_TIMER 0x02 144 #define PCI_CLASS_SUB_CODE_PERIPHERAL_RTC 0x03 145 #define PCI_CLASS_SUB_CODE_PERIPHERAL_HOTPLUG 0x04 146 #define PCI_CLASS_SUB_CODE_PERIPHERAL_SD 0x05 147 #define PCI_CLASS_SUB_CODE_PERIPHERAL_OTHER 0x80 148 #define PCI_CLASS_SUB_CODE_INPUT_KEYBOARD 0x00 149 #define PCI_CLASS_SUB_CODE_INPUT_DIGITIZER 0x01 150 #define PCI_CLASS_SUB_CODE_INPUT_MOUSE 0x02 151 #define PCI_CLASS_SUB_CODE_INPUT_SCANNER 0x03 152 #define PCI_CLASS_SUB_CODE_INPUT_GAMEPORT 0x04 153 #define PCI_CLASS_SUB_CODE_INPUT_OTHER 0x80 154 #define PCI_CLASS_SUB_CODE_DOCKING_GENERIC 0x00 155 #define PCI_CLASS_SUB_CODE_DOCKING_OTHER 0x80 156 #define PCI_CLASS_SUB_CODE_PROCESSOR_386 0x00 157 #define PCI_CLASS_SUB_CODE_PROCESSOR_486 0x01 158 #define PCI_CLASS_SUB_CODE_PROCESSOR_PENTIUM 0x02 159 #define PCI_CLASS_SUB_CODE_PROCESSOR_ALPHA 0x10 160 #define PCI_CLASS_SUB_CODE_PROCESSOR_POWERPC 0x20 161 #define PCI_CLASS_SUB_CODE_PROCESSOR_MIPS 0x30 162 #define PCI_CLASS_SUB_CODE_PROCESSOR_COPROC 0x40 163 #define PCI_CLASS_SUB_CODE_SERIAL_1394 0x00 164 #define PCI_CLASS_SUB_CODE_SERIAL_ACCESSBUS 0x01 165 #define PCI_CLASS_SUB_CODE_SERIAL_SSA 0x02 166 #define PCI_CLASS_SUB_CODE_SERIAL_USB 0x03 167 #define PCI_CLASS_SUB_CODE_SERIAL_FIBRECHAN 0x04 168 #define PCI_CLASS_SUB_CODE_SERIAL_SMBUS 0x05 169 #define PCI_CLASS_SUB_CODE_SERIAL_INFINIBAND 0x06 170 #define PCI_CLASS_SUB_CODE_SERIAL_IPMI 0x07 171 #define PCI_CLASS_SUB_CODE_SERIAL_SERCOS 0x08 172 #define PCI_CLASS_SUB_CODE_SERIAL_CANBUS 0x09 173 #define PCI_CLASS_SUB_CODE_WIRELESS_IRDA 0x00 174 #define PCI_CLASS_SUB_CODE_WIRELESS_IR 0x01 175 #define PCI_CLASS_SUB_CODE_WIRELESS_RF 0x10 176 #define PCI_CLASS_SUB_CODE_WIRELESS_BLUETOOTH 0x11 177 #define PCI_CLASS_SUB_CODE_WIRELESS_BROADBAND 0x12 178 #define PCI_CLASS_SUB_CODE_WIRELESS_80211A 0x20 179 #define PCI_CLASS_SUB_CODE_WIRELESS_80211B 0x21 180 #define PCI_CLASS_SUB_CODE_WIRELESS_OTHER 0x80 181 #define PCI_CLASS_SUB_CODE_I2O_V1_0 0x00 182 #define PCI_CLASS_SUB_CODE_SATELLITE_TV 0x01 183 #define PCI_CLASS_SUB_CODE_SATELLITE_AUDIO 0x02 184 #define PCI_CLASS_SUB_CODE_SATELLITE_VOICE 0x03 185 #define PCI_CLASS_SUB_CODE_SATELLITE_DATA 0x04 186 #define PCI_CLASS_SUB_CODE_CRYPTO_NETWORK 0x00 187 #define PCI_CLASS_SUB_CODE_CRYPTO_ENTERTAINMENT 0x10 188 #define PCI_CLASS_SUB_CODE_CRYPTO_OTHER 0x80 189 #define PCI_CLASS_SUB_CODE_DATA_DPIO 0x00 190 #define PCI_CLASS_SUB_CODE_DATA_PERFCNTR 0x01 191 #define PCI_CLASS_SUB_CODE_DATA_COMMSYNC 0x10 192 #define PCI_CLASS_SUB_CODE_DATA_MGMT 0x20 193 #define PCI_CLASS_SUB_CODE_DATA_OTHER 0x80 194 195 #define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */ 196 #define PCI_LATENCY_TIMER 0x0d /* 8 bits */ 197 #define PCI_HEADER_TYPE 0x0e /* 8 bits */ 198 #define PCI_HEADER_TYPE_NORMAL 0 199 #define PCI_HEADER_TYPE_BRIDGE 1 200 #define PCI_HEADER_TYPE_CARDBUS 2 201 202 #define PCI_BIST 0x0f /* 8 bits */ 203 #define PCI_BIST_CODE_MASK 0x0f /* Return result */ 204 #define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */ 205 #define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */ 206 207 /* 208 * Base addresses specify locations in memory or I/O space. 209 * Decoded size can be determined by writing a value of 210 * 0xffffffff to the register, and reading it back. Only 211 * 1 bits are decoded. 212 */ 213 #define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */ 214 #define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */ 215 #define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */ 216 #define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */ 217 #define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */ 218 #define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */ 219 #define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */ 220 #define PCI_BASE_ADDRESS_SPACE_IO 0x01 221 #define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00 222 #define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06 223 #define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */ 224 #define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */ 225 #define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */ 226 #define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */ 227 #define PCI_BASE_ADDRESS_MEM_MASK (~0x0fULL) 228 #define PCI_BASE_ADDRESS_IO_MASK (~0x03ULL) 229 /* bit 1 is reserved if address_space = 1 */ 230 231 /* Header type 0 (normal devices) */ 232 #define PCI_CARDBUS_CIS 0x28 233 #define PCI_SUBSYSTEM_VENDOR_ID 0x2c 234 #define PCI_SUBSYSTEM_ID 0x2e 235 #define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */ 236 #define PCI_ROM_ADDRESS_ENABLE 0x01 237 #define PCI_ROM_ADDRESS_MASK (~0x7ffULL) 238 239 #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */ 240 241 /* 0x35-0x3b are reserved */ 242 #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */ 243 #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */ 244 #define PCI_MIN_GNT 0x3e /* 8 bits */ 245 #define PCI_MAX_LAT 0x3f /* 8 bits */ 246 247 /* Header type 1 (PCI-to-PCI bridges) */ 248 #define PCI_PRIMARY_BUS 0x18 /* Primary bus number */ 249 #define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */ 250 #define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */ 251 #define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */ 252 #define PCI_IO_BASE 0x1c /* I/O range behind the bridge */ 253 #define PCI_IO_LIMIT 0x1d 254 #define PCI_IO_RANGE_TYPE_MASK 0x0f /* I/O bridging type */ 255 #define PCI_IO_RANGE_TYPE_16 0x00 256 #define PCI_IO_RANGE_TYPE_32 0x01 257 #define PCI_IO_RANGE_MASK ~0x0f 258 #define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */ 259 #define PCI_MEMORY_BASE 0x20 /* Memory range behind */ 260 #define PCI_MEMORY_LIMIT 0x22 261 #define PCI_MEMORY_RANGE_TYPE_MASK 0x0f 262 #define PCI_MEMORY_RANGE_MASK ~0x0f 263 #define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */ 264 #define PCI_PREF_MEMORY_LIMIT 0x26 265 #define PCI_PREF_RANGE_TYPE_MASK 0x0f 266 #define PCI_PREF_RANGE_TYPE_32 0x00 267 #define PCI_PREF_RANGE_TYPE_64 0x01 268 #define PCI_PREF_RANGE_MASK ~0x0f 269 #define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */ 270 #define PCI_PREF_LIMIT_UPPER32 0x2c 271 #define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */ 272 #define PCI_IO_LIMIT_UPPER16 0x32 273 /* 0x34 same as for htype 0 */ 274 /* 0x35-0x3b is reserved */ 275 #define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */ 276 /* 0x3c-0x3d are same as for htype 0 */ 277 #define PCI_BRIDGE_CONTROL 0x3e 278 #define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */ 279 #define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */ 280 #define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */ 281 #define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */ 282 #define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */ 283 #define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */ 284 #define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */ 285 286 /* From 440ep */ 287 #define PCI_ERREN 0x48 /* Error Enable */ 288 #define PCI_ERRSTS 0x49 /* Error Status */ 289 #define PCI_BRDGOPT1 0x4A /* PCI Bridge Options 1 */ 290 #define PCI_PLBSESR0 0x4C /* PCI PLB Slave Error Syndrome 0 */ 291 #define PCI_PLBSESR1 0x50 /* PCI PLB Slave Error Syndrome 1 */ 292 #define PCI_PLBSEAR 0x54 /* PCI PLB Slave Error Address */ 293 #define PCI_CAPID 0x58 /* Capability Identifier */ 294 #define PCI_NEXTITEMPTR 0x59 /* Next Item Pointer */ 295 #define PCI_PMC 0x5A /* Power Management Capabilities */ 296 #define PCI_PMCSR 0x5C /* Power Management Control Status */ 297 #define PCI_PMCSRBSE 0x5E /* PMCSR PCI to PCI Bridge Support Extensions */ 298 #define PCI_BRDGOPT2 0x60 /* PCI Bridge Options 2 */ 299 #define PCI_PMSCRR 0x64 /* Power Management State Change Request Re. */ 300 301 /* Header type 2 (CardBus bridges) */ 302 #define PCI_CB_CAPABILITY_LIST 0x14 303 /* 0x15 reserved */ 304 #define PCI_CB_SEC_STATUS 0x16 /* Secondary status */ 305 #define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */ 306 #define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */ 307 #define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */ 308 #define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */ 309 #define PCI_CB_MEMORY_BASE_0 0x1c 310 #define PCI_CB_MEMORY_LIMIT_0 0x20 311 #define PCI_CB_MEMORY_BASE_1 0x24 312 #define PCI_CB_MEMORY_LIMIT_1 0x28 313 #define PCI_CB_IO_BASE_0 0x2c 314 #define PCI_CB_IO_BASE_0_HI 0x2e 315 #define PCI_CB_IO_LIMIT_0 0x30 316 #define PCI_CB_IO_LIMIT_0_HI 0x32 317 #define PCI_CB_IO_BASE_1 0x34 318 #define PCI_CB_IO_BASE_1_HI 0x36 319 #define PCI_CB_IO_LIMIT_1 0x38 320 #define PCI_CB_IO_LIMIT_1_HI 0x3a 321 #define PCI_CB_IO_RANGE_MASK ~0x03 322 /* 0x3c-0x3d are same as for htype 0 */ 323 #define PCI_CB_BRIDGE_CONTROL 0x3e 324 #define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */ 325 #define PCI_CB_BRIDGE_CTL_SERR 0x02 326 #define PCI_CB_BRIDGE_CTL_ISA 0x04 327 #define PCI_CB_BRIDGE_CTL_VGA 0x08 328 #define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20 329 #define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */ 330 #define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */ 331 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */ 332 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200 333 #define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400 334 #define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40 335 #define PCI_CB_SUBSYSTEM_ID 0x42 336 #define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */ 337 /* 0x48-0x7f reserved */ 338 339 /* Capability lists */ 340 341 #define PCI_CAP_LIST_ID 0 /* Capability ID */ 342 #define PCI_CAP_ID_PM 0x01 /* Power Management */ 343 #define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */ 344 #define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */ 345 #define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */ 346 #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */ 347 #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ 348 #define PCI_CAP_ID_EXP 0x10 /* PCI Express */ 349 #define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */ 350 #define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */ 351 #define PCI_CAP_SIZEOF 4 352 353 /* Power Management Registers */ 354 355 #define PCI_PM_CAP_VER_MASK 0x0007 /* Version */ 356 #define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */ 357 #define PCI_PM_CAP_AUX_POWER 0x0010 /* Auxilliary power support */ 358 #define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */ 359 #define PCI_PM_CAP_D1 0x0200 /* D1 power state support */ 360 #define PCI_PM_CAP_D2 0x0400 /* D2 power state support */ 361 #define PCI_PM_CAP_PME 0x0800 /* PME pin supported */ 362 #define PCI_PM_CTRL 4 /* PM control and status register */ 363 #define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */ 364 #define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */ 365 #define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */ 366 #define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */ 367 #define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */ 368 #define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */ 369 #define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */ 370 #define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */ 371 #define PCI_PM_DATA_REGISTER 7 /* (??) */ 372 #define PCI_PM_SIZEOF 8 373 374 /* AGP registers */ 375 376 #define PCI_AGP_VERSION 2 /* BCD version number */ 377 #define PCI_AGP_RFU 3 /* Rest of capability flags */ 378 #define PCI_AGP_STATUS 4 /* Status register */ 379 #define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */ 380 #define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */ 381 #define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */ 382 #define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */ 383 #define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */ 384 #define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */ 385 #define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */ 386 #define PCI_AGP_COMMAND 8 /* Control register */ 387 #define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */ 388 #define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */ 389 #define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */ 390 #define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */ 391 #define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */ 392 #define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */ 393 #define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 4x rate */ 394 #define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 4x rate */ 395 #define PCI_AGP_SIZEOF 12 396 397 /* PCI-X registers */ 398 399 #define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */ 400 #define PCI_X_CMD_ERO 0x0002 /* Enable Relaxed Ordering */ 401 #define PCI_X_CMD_MAX_READ 0x0000 /* Max Memory Read Byte Count */ 402 #define PCI_X_CMD_MAX_SPLIT 0x0030 /* Max Outstanding Split Transactions */ 403 #define PCI_X_CMD_VERSION(x) (((x) >> 12) & 3) /* Version */ 404 405 406 /* Slot Identification */ 407 408 #define PCI_SID_ESR 2 /* Expansion Slot Register */ 409 #define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */ 410 #define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */ 411 #define PCI_SID_CHASSIS_NR 3 /* Chassis Number */ 412 413 /* Message Signalled Interrupts registers */ 414 415 #define PCI_MSI_FLAGS 2 /* Various flags */ 416 #define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */ 417 #define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */ 418 #define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */ 419 #define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */ 420 #define PCI_MSI_RFU 3 /* Rest of capability flags */ 421 #define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */ 422 #define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */ 423 #define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */ 424 #define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */ 425 426 #define PCI_MAX_PCI_DEVICES 32 427 #define PCI_MAX_PCI_FUNCTIONS 8 428 429 #define PCI_DCR 0x54 /* PCIe Device Control Register */ 430 #define PCI_DSR 0x56 /* PCIe Device Status Register */ 431 #define PCI_LSR 0x5e /* PCIe Link Status Register */ 432 #define PCI_LCR 0x5c /* PCIe Link Control Register */ 433 #define PCI_LTSSM 0x404 /* PCIe Link Training, Status State Machine */ 434 #define PCI_LTSSM_L0 0x16 /* L0 state */ 435 436 /* Include the ID list */ 437 438 #include <pci_ids.h> 439 440 #ifdef CONFIG_SYS_PCI_64BIT 441 typedef u64 pci_addr_t; 442 typedef u64 pci_size_t; 443 #else 444 typedef u32 pci_addr_t; 445 typedef u32 pci_size_t; 446 #endif 447 448 struct pci_region { 449 pci_addr_t bus_start; /* Start on the bus */ 450 phys_addr_t phys_start; /* Start in physical address space */ 451 pci_size_t size; /* Size */ 452 unsigned long flags; /* Resource flags */ 453 454 pci_addr_t bus_lower; 455 }; 456 457 #define PCI_REGION_MEM 0x00000000 /* PCI memory space */ 458 #define PCI_REGION_IO 0x00000001 /* PCI IO space */ 459 #define PCI_REGION_TYPE 0x00000001 460 #define PCI_REGION_PREFETCH 0x00000008 /* prefetchable PCI memory */ 461 462 #define PCI_REGION_SYS_MEMORY 0x00000100 /* System memory */ 463 #define PCI_REGION_RO 0x00000200 /* Read-only memory */ 464 465 static inline void pci_set_region(struct pci_region *reg, 466 pci_addr_t bus_start, 467 phys_addr_t phys_start, 468 pci_size_t size, 469 unsigned long flags) { 470 reg->bus_start = bus_start; 471 reg->phys_start = phys_start; 472 reg->size = size; 473 reg->flags = flags; 474 } 475 476 typedef int pci_dev_t; 477 478 #define PCI_BUS(d) (((d) >> 16) & 0xff) 479 #define PCI_DEV(d) (((d) >> 11) & 0x1f) 480 #define PCI_FUNC(d) (((d) >> 8) & 0x7) 481 #define PCI_BDF(b,d,f) ((b) << 16 | (d) << 11 | (f) << 8) 482 483 #define PCI_ANY_ID (~0) 484 485 struct pci_device_id { 486 unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */ 487 }; 488 489 struct pci_controller; 490 491 struct pci_config_table { 492 unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */ 493 unsigned int class; /* Class ID, or PCI_ANY_ID */ 494 unsigned int bus; /* Bus number, or PCI_ANY_ID */ 495 unsigned int dev; /* Device number, or PCI_ANY_ID */ 496 unsigned int func; /* Function number, or PCI_ANY_ID */ 497 498 void (*config_device)(struct pci_controller* hose, pci_dev_t dev, 499 struct pci_config_table *); 500 unsigned long priv[3]; 501 }; 502 503 extern void pci_cfgfunc_do_nothing(struct pci_controller* hose, pci_dev_t dev, 504 struct pci_config_table *); 505 extern void pci_cfgfunc_config_device(struct pci_controller* hose, pci_dev_t dev, 506 struct pci_config_table *); 507 508 #define MAX_PCI_REGIONS 7 509 510 #define INDIRECT_TYPE_NO_PCIE_LINK 1 511 512 /* 513 * Structure of a PCI controller (host bridge) 514 */ 515 struct pci_controller { 516 struct pci_controller *next; 517 518 int first_busno; 519 int last_busno; 520 521 volatile unsigned int *cfg_addr; 522 volatile unsigned char *cfg_data; 523 524 int indirect_type; 525 526 struct pci_region regions[MAX_PCI_REGIONS]; 527 int region_count; 528 529 struct pci_config_table *config_table; 530 531 void (*fixup_irq)(struct pci_controller *, pci_dev_t); 532 533 /* Low-level architecture-dependent routines */ 534 int (*read_byte)(struct pci_controller*, pci_dev_t, int where, u8 *); 535 int (*read_word)(struct pci_controller*, pci_dev_t, int where, u16 *); 536 int (*read_dword)(struct pci_controller*, pci_dev_t, int where, u32 *); 537 int (*write_byte)(struct pci_controller*, pci_dev_t, int where, u8); 538 int (*write_word)(struct pci_controller*, pci_dev_t, int where, u16); 539 int (*write_dword)(struct pci_controller*, pci_dev_t, int where, u32); 540 541 /* Used by auto config */ 542 struct pci_region *pci_mem, *pci_io, *pci_prefetch; 543 544 /* Used by ppc405 autoconfig*/ 545 struct pci_region *pci_fb; 546 int current_busno; 547 548 void *priv_data; 549 }; 550 551 static inline void pci_set_ops(struct pci_controller *hose, 552 int (*read_byte)(struct pci_controller*, 553 pci_dev_t, int where, u8 *), 554 int (*read_word)(struct pci_controller*, 555 pci_dev_t, int where, u16 *), 556 int (*read_dword)(struct pci_controller*, 557 pci_dev_t, int where, u32 *), 558 int (*write_byte)(struct pci_controller*, 559 pci_dev_t, int where, u8), 560 int (*write_word)(struct pci_controller*, 561 pci_dev_t, int where, u16), 562 int (*write_dword)(struct pci_controller*, 563 pci_dev_t, int where, u32)) { 564 hose->read_byte = read_byte; 565 hose->read_word = read_word; 566 hose->read_dword = read_dword; 567 hose->write_byte = write_byte; 568 hose->write_word = write_word; 569 hose->write_dword = write_dword; 570 } 571 572 #ifdef CONFIG_PCI_INDIRECT_BRIDGE 573 extern void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data); 574 #endif 575 576 extern phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose, 577 pci_addr_t addr, unsigned long flags); 578 extern pci_addr_t pci_hose_phys_to_bus(struct pci_controller* hose, 579 phys_addr_t addr, unsigned long flags); 580 581 #define pci_phys_to_bus(dev, addr, flags) \ 582 pci_hose_phys_to_bus(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags)) 583 #define pci_bus_to_phys(dev, addr, flags) \ 584 pci_hose_bus_to_phys(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags)) 585 586 #define pci_virt_to_bus(dev, addr, flags) \ 587 pci_hose_phys_to_bus(pci_bus_to_hose(PCI_BUS(dev)), \ 588 (virt_to_phys(addr)), (flags)) 589 #define pci_bus_to_virt(dev, addr, flags, len, map_flags) \ 590 map_physmem(pci_hose_bus_to_phys(pci_bus_to_hose(PCI_BUS(dev)), \ 591 (addr), (flags)), \ 592 (len), (map_flags)) 593 594 #define pci_phys_to_mem(dev, addr) \ 595 pci_phys_to_bus((dev), (addr), PCI_REGION_MEM) 596 #define pci_mem_to_phys(dev, addr) \ 597 pci_bus_to_phys((dev), (addr), PCI_REGION_MEM) 598 #define pci_phys_to_io(dev, addr) pci_phys_to_bus((dev), (addr), PCI_REGION_IO) 599 #define pci_io_to_phys(dev, addr) pci_bus_to_phys((dev), (addr), PCI_REGION_IO) 600 601 #define pci_virt_to_mem(dev, addr) \ 602 pci_virt_to_bus((dev), (addr), PCI_REGION_MEM) 603 #define pci_mem_to_virt(dev, addr, len, map_flags) \ 604 pci_bus_to_virt((dev), (addr), PCI_REGION_MEM, (len), (map_flags)) 605 #define pci_virt_to_io(dev, addr) \ 606 pci_virt_to_bus((dev), (addr), PCI_REGION_IO) 607 #define pci_io_to_virt(dev, addr, len, map_flags) \ 608 pci_bus_to_virt((dev), (addr), PCI_REGION_IO, (len), (map_flags)) 609 610 extern int pci_hose_read_config_byte(struct pci_controller *hose, 611 pci_dev_t dev, int where, u8 *val); 612 extern int pci_hose_read_config_word(struct pci_controller *hose, 613 pci_dev_t dev, int where, u16 *val); 614 extern int pci_hose_read_config_dword(struct pci_controller *hose, 615 pci_dev_t dev, int where, u32 *val); 616 extern int pci_hose_write_config_byte(struct pci_controller *hose, 617 pci_dev_t dev, int where, u8 val); 618 extern int pci_hose_write_config_word(struct pci_controller *hose, 619 pci_dev_t dev, int where, u16 val); 620 extern int pci_hose_write_config_dword(struct pci_controller *hose, 621 pci_dev_t dev, int where, u32 val); 622 623 extern int pci_read_config_byte(pci_dev_t dev, int where, u8 *val); 624 extern int pci_read_config_word(pci_dev_t dev, int where, u16 *val); 625 extern int pci_read_config_dword(pci_dev_t dev, int where, u32 *val); 626 extern int pci_write_config_byte(pci_dev_t dev, int where, u8 val); 627 extern int pci_write_config_word(pci_dev_t dev, int where, u16 val); 628 extern int pci_write_config_dword(pci_dev_t dev, int where, u32 val); 629 630 extern int pci_hose_read_config_byte_via_dword(struct pci_controller *hose, 631 pci_dev_t dev, int where, u8 *val); 632 extern int pci_hose_read_config_word_via_dword(struct pci_controller *hose, 633 pci_dev_t dev, int where, u16 *val); 634 extern int pci_hose_write_config_byte_via_dword(struct pci_controller *hose, 635 pci_dev_t dev, int where, u8 val); 636 extern int pci_hose_write_config_word_via_dword(struct pci_controller *hose, 637 pci_dev_t dev, int where, u16 val); 638 639 extern void *pci_map_bar(pci_dev_t pdev, int bar, int flags); 640 extern void pci_register_hose(struct pci_controller* hose); 641 extern struct pci_controller* pci_bus_to_hose(int bus); 642 extern struct pci_controller *find_hose_by_cfg_addr(void *cfg_addr); 643 644 extern int pci_hose_scan(struct pci_controller *hose); 645 extern int pci_hose_scan_bus(struct pci_controller *hose, int bus); 646 647 extern void pciauto_region_init(struct pci_region* res); 648 extern void pciauto_region_align(struct pci_region *res, pci_size_t size); 649 extern int pciauto_region_allocate(struct pci_region* res, pci_size_t size, pci_addr_t *bar); 650 extern void pciauto_setup_device(struct pci_controller *hose, 651 pci_dev_t dev, int bars_num, 652 struct pci_region *mem, 653 struct pci_region *prefetch, 654 struct pci_region *io); 655 extern void pciauto_prescan_setup_bridge(struct pci_controller *hose, 656 pci_dev_t dev, int sub_bus); 657 extern void pciauto_postscan_setup_bridge(struct pci_controller *hose, 658 pci_dev_t dev, int sub_bus); 659 extern void pciauto_config_init(struct pci_controller *hose); 660 extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev); 661 662 extern pci_dev_t pci_find_device (unsigned int vendor, unsigned int device, int index); 663 extern pci_dev_t pci_find_devices (struct pci_device_id *ids, int index); 664 extern pci_dev_t pci_find_class(int wanted_class, int wanted_sub_code, 665 int wanted_prog_if, int index); 666 667 extern int pci_hose_config_device(struct pci_controller *hose, 668 pci_dev_t dev, 669 unsigned long io, 670 pci_addr_t mem, 671 unsigned long command); 672 673 const char * pci_class_str(u8 class); 674 int pci_last_busno(void); 675 676 #ifdef CONFIG_MPC824X 677 extern void pci_mpc824x_init (struct pci_controller *hose); 678 #endif 679 680 #ifdef CONFIG_MPC85xx 681 extern void pci_mpc85xx_init (struct pci_controller *hose); 682 #endif 683 #endif /* _PCI_H */ 684