2 * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
3 * Andreas Heppel <aheppel@sysgo.de>
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
31 * Under PCI, each device has 256 bytes of configuration address space,
32 * of which the first 64 bytes are standardized as follows:
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 */
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 */
64 #define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8
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
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
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
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 */
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.
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 */
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)
239 #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
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 */
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 */
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. */
301 /* Header type 2 (CardBus bridges) */
302 #define PCI_CB_CAPABILITY_LIST 0x14
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 */
339 /* Capability lists */
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
353 /* Power Management Registers */
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
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
397 /* PCI-X registers */
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 */
406 /* Slot Identification */
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 */
413 /* Message Signalled Interrupts registers */
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 */
426 #define PCI_MAX_PCI_DEVICES 32
427 #define PCI_MAX_PCI_FUNCTIONS 8
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 */
436 /* Include the ID list */
440 #ifdef CONFIG_SYS_PCI_64BIT
441 typedef u64 pci_addr_t;
442 typedef u64 pci_size_t;
444 typedef u32 pci_addr_t;
445 typedef u32 pci_size_t;
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 */
454 pci_addr_t bus_lower;
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 */
462 #define PCI_REGION_SYS_MEMORY 0x00000100 /* System memory */
463 #define PCI_REGION_RO 0x00000200 /* Read-only memory */
465 extern __inline__ void pci_set_region(struct pci_region *reg,
466 pci_addr_t bus_start,
467 phys_addr_t phys_start,
469 unsigned long flags) {
470 reg->bus_start = bus_start;
471 reg->phys_start = phys_start;
476 typedef int pci_dev_t;
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)
483 #define PCI_ANY_ID (~0)
485 struct pci_device_id {
486 unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */
489 struct pci_controller;
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 */
498 void (*config_device)(struct pci_controller* hose, pci_dev_t dev,
499 struct pci_config_table *);
500 unsigned long priv[3];
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 *);
508 #define MAX_PCI_REGIONS 7
510 #define INDIRECT_TYPE_NO_PCIE_LINK 1
513 * Structure of a PCI controller (host bridge)
515 struct pci_controller {
516 struct pci_controller *next;
521 volatile unsigned int *cfg_addr;
522 volatile unsigned char *cfg_data;
526 struct pci_region regions[MAX_PCI_REGIONS];
529 struct pci_config_table *config_table;
531 void (*fixup_irq)(struct pci_controller *, pci_dev_t);
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);
541 /* Used by auto config */
542 struct pci_region *pci_mem, *pci_io, *pci_prefetch;
544 /* Used by ppc405 autoconfig*/
545 struct pci_region *pci_fb;
551 extern __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;
572 extern void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data);
574 extern phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose,
575 pci_addr_t addr, unsigned long flags);
576 extern pci_addr_t pci_hose_phys_to_bus(struct pci_controller* hose,
577 phys_addr_t addr, unsigned long flags);
579 #define pci_phys_to_bus(dev, addr, flags) \
580 pci_hose_phys_to_bus(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags))
581 #define pci_bus_to_phys(dev, addr, flags) \
582 pci_hose_bus_to_phys(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags))
584 #define pci_virt_to_bus(dev, addr, flags) \
585 pci_hose_phys_to_bus(pci_bus_to_hose(PCI_BUS(dev)), \
586 (virt_to_phys(addr)), (flags))
587 #define pci_bus_to_virt(dev, addr, flags, len, map_flags) \
588 map_physmem(pci_hose_bus_to_phys(pci_bus_to_hose(PCI_BUS(dev)), \
592 #define pci_phys_to_mem(dev, addr) \
593 pci_phys_to_bus((dev), (addr), PCI_REGION_MEM)
594 #define pci_mem_to_phys(dev, addr) \
595 pci_bus_to_phys((dev), (addr), PCI_REGION_MEM)
596 #define pci_phys_to_io(dev, addr) pci_phys_to_bus((dev), (addr), PCI_REGION_IO)
597 #define pci_io_to_phys(dev, addr) pci_bus_to_phys((dev), (addr), PCI_REGION_IO)
599 #define pci_virt_to_mem(dev, addr) \
600 pci_virt_to_bus((dev), (addr), PCI_REGION_MEM)
601 #define pci_mem_to_virt(dev, addr, len, map_flags) \
602 pci_bus_to_virt((dev), (addr), PCI_REGION_MEM, (len), (map_flags))
603 #define pci_virt_to_io(dev, addr) \
604 pci_virt_to_bus((dev), (addr), PCI_REGION_IO)
605 #define pci_io_to_virt(dev, addr, len, map_flags) \
606 pci_bus_to_virt((dev), (addr), PCI_REGION_IO, (len), (map_flags))
608 extern int pci_hose_read_config_byte(struct pci_controller *hose,
609 pci_dev_t dev, int where, u8 *val);
610 extern int pci_hose_read_config_word(struct pci_controller *hose,
611 pci_dev_t dev, int where, u16 *val);
612 extern int pci_hose_read_config_dword(struct pci_controller *hose,
613 pci_dev_t dev, int where, u32 *val);
614 extern int pci_hose_write_config_byte(struct pci_controller *hose,
615 pci_dev_t dev, int where, u8 val);
616 extern int pci_hose_write_config_word(struct pci_controller *hose,
617 pci_dev_t dev, int where, u16 val);
618 extern int pci_hose_write_config_dword(struct pci_controller *hose,
619 pci_dev_t dev, int where, u32 val);
621 extern int pci_read_config_byte(pci_dev_t dev, int where, u8 *val);
622 extern int pci_read_config_word(pci_dev_t dev, int where, u16 *val);
623 extern int pci_read_config_dword(pci_dev_t dev, int where, u32 *val);
624 extern int pci_write_config_byte(pci_dev_t dev, int where, u8 val);
625 extern int pci_write_config_word(pci_dev_t dev, int where, u16 val);
626 extern int pci_write_config_dword(pci_dev_t dev, int where, u32 val);
628 extern int pci_hose_read_config_byte_via_dword(struct pci_controller *hose,
629 pci_dev_t dev, int where, u8 *val);
630 extern int pci_hose_read_config_word_via_dword(struct pci_controller *hose,
631 pci_dev_t dev, int where, u16 *val);
632 extern int pci_hose_write_config_byte_via_dword(struct pci_controller *hose,
633 pci_dev_t dev, int where, u8 val);
634 extern int pci_hose_write_config_word_via_dword(struct pci_controller *hose,
635 pci_dev_t dev, int where, u16 val);
637 extern void *pci_map_bar(pci_dev_t pdev, int bar, int flags);
638 extern void pci_register_hose(struct pci_controller* hose);
639 extern struct pci_controller* pci_bus_to_hose(int bus);
640 extern struct pci_controller *find_hose_by_cfg_addr(void *cfg_addr);
642 extern int pci_hose_scan(struct pci_controller *hose);
643 extern int pci_hose_scan_bus(struct pci_controller *hose, int bus);
645 extern void pciauto_region_init(struct pci_region* res);
646 extern void pciauto_region_align(struct pci_region *res, pci_size_t size);
647 extern int pciauto_region_allocate(struct pci_region* res, pci_size_t size, pci_addr_t *bar);
648 extern void pciauto_setup_device(struct pci_controller *hose,
649 pci_dev_t dev, int bars_num,
650 struct pci_region *mem,
651 struct pci_region *prefetch,
652 struct pci_region *io);
653 extern void pciauto_prescan_setup_bridge(struct pci_controller *hose,
654 pci_dev_t dev, int sub_bus);
655 extern void pciauto_postscan_setup_bridge(struct pci_controller *hose,
656 pci_dev_t dev, int sub_bus);
657 extern void pciauto_config_init(struct pci_controller *hose);
658 extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
660 extern pci_dev_t pci_find_device (unsigned int vendor, unsigned int device, int index);
661 extern pci_dev_t pci_find_devices (struct pci_device_id *ids, int index);
662 extern pci_dev_t pci_find_class(int wanted_class, int wanted_sub_code,
663 int wanted_prog_if, int index);
665 extern int pci_hose_config_device(struct pci_controller *hose,
669 unsigned long command);
671 const char * pci_class_str(u8 class);
672 int pci_last_busno(void);
674 #ifdef CONFIG_MPC824X
675 extern void pci_mpc824x_init (struct pci_controller *hose);
678 #ifdef CONFIG_MPC85xx
679 extern void pci_mpc85xx_init (struct pci_controller *hose);
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