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_SUB_CODE 0x0a /* Device sub-class code */
72 #define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
73 #define PCI_LATENCY_TIMER 0x0d /* 8 bits */
74 #define PCI_HEADER_TYPE 0x0e /* 8 bits */
75 #define PCI_HEADER_TYPE_NORMAL 0
76 #define PCI_HEADER_TYPE_BRIDGE 1
77 #define PCI_HEADER_TYPE_CARDBUS 2
79 #define PCI_BIST 0x0f /* 8 bits */
80 #define PCI_BIST_CODE_MASK 0x0f /* Return result */
81 #define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */
82 #define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */
85 * Base addresses specify locations in memory or I/O space.
86 * Decoded size can be determined by writing a value of
87 * 0xffffffff to the register, and reading it back. Only
90 #define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
91 #define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */
92 #define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */
93 #define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */
94 #define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */
95 #define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */
96 #define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */
97 #define PCI_BASE_ADDRESS_SPACE_IO 0x01
98 #define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
99 #define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
100 #define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */
101 #define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */
102 #define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
103 #define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */
104 #define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL)
105 #define PCI_BASE_ADDRESS_IO_MASK (~0x03UL)
106 /* bit 1 is reserved if address_space = 1 */
108 /* Header type 0 (normal devices) */
109 #define PCI_CARDBUS_CIS 0x28
110 #define PCI_SUBSYSTEM_VENDOR_ID 0x2c
111 #define PCI_SUBSYSTEM_ID 0x2e
112 #define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
113 #define PCI_ROM_ADDRESS_ENABLE 0x01
114 #define PCI_ROM_ADDRESS_MASK (~0x7ffUL)
116 #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
118 /* 0x35-0x3b are reserved */
119 #define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
120 #define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
121 #define PCI_MIN_GNT 0x3e /* 8 bits */
122 #define PCI_MAX_LAT 0x3f /* 8 bits */
124 /* Header type 1 (PCI-to-PCI bridges) */
125 #define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
126 #define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
127 #define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
128 #define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
129 #define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
130 #define PCI_IO_LIMIT 0x1d
131 #define PCI_IO_RANGE_TYPE_MASK 0x0f /* I/O bridging type */
132 #define PCI_IO_RANGE_TYPE_16 0x00
133 #define PCI_IO_RANGE_TYPE_32 0x01
134 #define PCI_IO_RANGE_MASK ~0x0f
135 #define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
136 #define PCI_MEMORY_BASE 0x20 /* Memory range behind */
137 #define PCI_MEMORY_LIMIT 0x22
138 #define PCI_MEMORY_RANGE_TYPE_MASK 0x0f
139 #define PCI_MEMORY_RANGE_MASK ~0x0f
140 #define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
141 #define PCI_PREF_MEMORY_LIMIT 0x26
142 #define PCI_PREF_RANGE_TYPE_MASK 0x0f
143 #define PCI_PREF_RANGE_TYPE_32 0x00
144 #define PCI_PREF_RANGE_TYPE_64 0x01
145 #define PCI_PREF_RANGE_MASK ~0x0f
146 #define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
147 #define PCI_PREF_LIMIT_UPPER32 0x2c
148 #define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
149 #define PCI_IO_LIMIT_UPPER16 0x32
150 /* 0x34 same as for htype 0 */
151 /* 0x35-0x3b is reserved */
152 #define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
153 /* 0x3c-0x3d are same as for htype 0 */
154 #define PCI_BRIDGE_CONTROL 0x3e
155 #define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
156 #define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
157 #define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */
158 #define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
159 #define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
160 #define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
161 #define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
163 /* Header type 2 (CardBus bridges) */
164 #define PCI_CB_CAPABILITY_LIST 0x14
166 #define PCI_CB_SEC_STATUS 0x16 /* Secondary status */
167 #define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */
168 #define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */
169 #define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */
170 #define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */
171 #define PCI_CB_MEMORY_BASE_0 0x1c
172 #define PCI_CB_MEMORY_LIMIT_0 0x20
173 #define PCI_CB_MEMORY_BASE_1 0x24
174 #define PCI_CB_MEMORY_LIMIT_1 0x28
175 #define PCI_CB_IO_BASE_0 0x2c
176 #define PCI_CB_IO_BASE_0_HI 0x2e
177 #define PCI_CB_IO_LIMIT_0 0x30
178 #define PCI_CB_IO_LIMIT_0_HI 0x32
179 #define PCI_CB_IO_BASE_1 0x34
180 #define PCI_CB_IO_BASE_1_HI 0x36
181 #define PCI_CB_IO_LIMIT_1 0x38
182 #define PCI_CB_IO_LIMIT_1_HI 0x3a
183 #define PCI_CB_IO_RANGE_MASK ~0x03
184 /* 0x3c-0x3d are same as for htype 0 */
185 #define PCI_CB_BRIDGE_CONTROL 0x3e
186 #define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */
187 #define PCI_CB_BRIDGE_CTL_SERR 0x02
188 #define PCI_CB_BRIDGE_CTL_ISA 0x04
189 #define PCI_CB_BRIDGE_CTL_VGA 0x08
190 #define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20
191 #define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */
192 #define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */
193 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */
194 #define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
195 #define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400
196 #define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40
197 #define PCI_CB_SUBSYSTEM_ID 0x42
198 #define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */
199 /* 0x48-0x7f reserved */
201 /* Capability lists */
203 #define PCI_CAP_LIST_ID 0 /* Capability ID */
204 #define PCI_CAP_ID_PM 0x01 /* Power Management */
205 #define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */
206 #define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */
207 #define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
208 #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
209 #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
210 #define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
211 #define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
212 #define PCI_CAP_SIZEOF 4
214 /* Power Management Registers */
216 #define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
217 #define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
218 #define PCI_PM_CAP_AUX_POWER 0x0010 /* Auxilliary power support */
219 #define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
220 #define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
221 #define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
222 #define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
223 #define PCI_PM_CTRL 4 /* PM control and status register */
224 #define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
225 #define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
226 #define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
227 #define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
228 #define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
229 #define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
230 #define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
231 #define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
232 #define PCI_PM_DATA_REGISTER 7 /* (??) */
233 #define PCI_PM_SIZEOF 8
237 #define PCI_AGP_VERSION 2 /* BCD version number */
238 #define PCI_AGP_RFU 3 /* Rest of capability flags */
239 #define PCI_AGP_STATUS 4 /* Status register */
240 #define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */
241 #define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */
242 #define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */
243 #define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */
244 #define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */
245 #define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */
246 #define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */
247 #define PCI_AGP_COMMAND 8 /* Control register */
248 #define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */
249 #define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */
250 #define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */
251 #define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */
252 #define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */
253 #define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */
254 #define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 4x rate */
255 #define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 4x rate */
256 #define PCI_AGP_SIZEOF 12
258 /* Slot Identification */
260 #define PCI_SID_ESR 2 /* Expansion Slot Register */
261 #define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
262 #define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
263 #define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
265 /* Message Signalled Interrupts registers */
267 #define PCI_MSI_FLAGS 2 /* Various flags */
268 #define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */
269 #define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */
270 #define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */
271 #define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */
272 #define PCI_MSI_RFU 3 /* Rest of capability flags */
273 #define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */
274 #define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
275 #define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
276 #define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
278 #define PCI_MAX_PCI_DEVICES 32
279 #define PCI_MAX_PCI_FUNCTIONS 8
281 /* Include the ID list */
286 unsigned long bus_start; /* Start on the bus */
287 unsigned long phys_start; /* Start in physical address space */
288 unsigned long size; /* Size */
289 unsigned long flags; /* Resource flags */
291 unsigned long bus_lower;
294 #define PCI_REGION_MEM 0x00000000 /* PCI memory space */
295 #define PCI_REGION_IO 0x00000001 /* PCI IO space */
296 #define PCI_REGION_TYPE 0x00000001
298 #define PCI_REGION_MEMORY 0x00000100 /* System memory */
299 #define PCI_REGION_RO 0x00000200 /* Read-only memory */
301 extern __inline__ void pci_set_region(struct pci_region *reg,
302 unsigned long bus_start,
303 unsigned long phys_start,
305 unsigned long flags) {
306 reg->bus_start = bus_start;
307 reg->phys_start = phys_start;
312 typedef int pci_dev_t;
314 #define PCI_BUS(d) (((d) >> 16) & 0xff)
315 #define PCI_DEV(d) (((d) >> 11) & 0x1f)
316 #define PCI_FUNC(d) (((d) >> 8) & 0x7)
317 #define PCI_BDF(b,d,f) ((b) << 16 | (d) << 11 | (f) << 8)
319 #define PCI_ANY_ID (~0)
321 struct pci_device_id {
322 unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */
325 struct pci_controller;
327 struct pci_config_table {
328 unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */
329 unsigned int class; /* Class ID, or PCI_ANY_ID */
330 unsigned int bus; /* Bus number, or PCI_ANY_ID */
331 unsigned int dev; /* Device number, or PCI_ANY_ID */
332 unsigned int func; /* Function number, or PCI_ANY_ID */
334 void (*config_device)(struct pci_controller* hose, pci_dev_t dev,
335 struct pci_config_table *);
336 unsigned long priv[3];
339 extern void pci_cfgfunc_nothing(struct pci_controller* hose, pci_dev_t dev,
340 struct pci_config_table *);
341 extern void pci_cfgfunc_config_device(struct pci_controller* hose, pci_dev_t dev,
342 struct pci_config_table *);
344 #define MAX_PCI_REGIONS 7
347 * Structure of a PCI controller (host bridge)
349 struct pci_controller {
350 struct pci_controller *next;
355 volatile unsigned int *cfg_addr;
356 volatile unsigned char *cfg_data;
358 struct pci_region regions[MAX_PCI_REGIONS];
361 struct pci_config_table *config_table;
363 void (*fixup_irq)(struct pci_controller *, pci_dev_t);
365 /* Low-level architecture-dependent routines */
366 int (*read_byte)(struct pci_controller*, pci_dev_t, int where, u8 *);
367 int (*read_word)(struct pci_controller*, pci_dev_t, int where, u16 *);
368 int (*read_dword)(struct pci_controller*, pci_dev_t, int where, u32 *);
369 int (*write_byte)(struct pci_controller*, pci_dev_t, int where, u8);
370 int (*write_word)(struct pci_controller*, pci_dev_t, int where, u16);
371 int (*write_dword)(struct pci_controller*, pci_dev_t, int where, u32);
373 /* Used by auto config */
374 struct pci_region *pci_mem, *pci_io;
376 /* Used by ppc405 autoconfig*/
377 struct pci_region *pci_fb;
381 extern __inline__ void pci_set_ops(struct pci_controller *hose,
382 int (*read_byte)(struct pci_controller*,
383 pci_dev_t, int where, u8 *),
384 int (*read_word)(struct pci_controller*,
385 pci_dev_t, int where, u16 *),
386 int (*read_dword)(struct pci_controller*,
387 pci_dev_t, int where, u32 *),
388 int (*write_byte)(struct pci_controller*,
389 pci_dev_t, int where, u8),
390 int (*write_word)(struct pci_controller*,
391 pci_dev_t, int where, u16),
392 int (*write_dword)(struct pci_controller*,
393 pci_dev_t, int where, u32)) {
394 hose->read_byte = read_byte;
395 hose->read_word = read_word;
396 hose->read_dword = read_dword;
397 hose->write_byte = write_byte;
398 hose->write_word = write_word;
399 hose->write_dword = write_dword;
402 extern void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data);
404 extern unsigned long pci_hose_bus_to_phys(struct pci_controller* hose,
405 unsigned long addr, unsigned long flags);
406 extern unsigned long pci_hose_phys_to_bus(struct pci_controller* hose,
407 unsigned long addr, unsigned long flags);
409 #define pci_phys_to_bus(dev, addr, flags) \
410 pci_hose_phys_to_bus(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags))
411 #define pci_bus_to_phys(dev, addr, flags) \
412 pci_hose_bus_to_phys(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags))
414 #define pci_phys_to_mem(dev, addr) pci_phys_to_bus((dev), (addr), PCI_REGION_MEM)
415 #define pci_mem_to_phys(dev, addr) pci_bus_to_phys((dev), (addr), PCI_REGION_MEM)
416 #define pci_phys_to_io(dev, addr) pci_phys_to_bus((dev), (addr), PCI_REGION_IO)
417 #define pci_io_to_phys(dev, addr) pci_bus_to_phys((dev), (addr), PCI_REGION_IO)
419 extern int pci_hose_read_config_byte(struct pci_controller *hose,
420 pci_dev_t dev, int where, u8 *val);
421 extern int pci_hose_read_config_word(struct pci_controller *hose,
422 pci_dev_t dev, int where, u16 *val);
423 extern int pci_hose_read_config_dword(struct pci_controller *hose,
424 pci_dev_t dev, int where, u32 *val);
425 extern int pci_hose_write_config_byte(struct pci_controller *hose,
426 pci_dev_t dev, int where, u8 val);
427 extern int pci_hose_write_config_word(struct pci_controller *hose,
428 pci_dev_t dev, int where, u16 val);
429 extern int pci_hose_write_config_dword(struct pci_controller *hose,
430 pci_dev_t dev, int where, u32 val);
432 extern int pci_read_config_byte(pci_dev_t dev, int where, u8 *val);
433 extern int pci_read_config_word(pci_dev_t dev, int where, u16 *val);
434 extern int pci_read_config_dword(pci_dev_t dev, int where, u32 *val);
435 extern int pci_write_config_byte(pci_dev_t dev, int where, u8 val);
436 extern int pci_write_config_word(pci_dev_t dev, int where, u16 val);
437 extern int pci_write_config_dword(pci_dev_t dev, int where, u32 val);
439 extern int pci_hose_read_config_byte_via_dword(struct pci_controller *hose,
440 pci_dev_t dev, int where, u8 *val);
441 extern int pci_hose_read_config_word_via_dword(struct pci_controller *hose,
442 pci_dev_t dev, int where, u16 *val);
443 extern int pci_hose_write_config_byte_via_dword(struct pci_controller *hose,
444 pci_dev_t dev, int where, u8 val);
445 extern int pci_hose_write_config_word_via_dword(struct pci_controller *hose,
446 pci_dev_t dev, int where, u16 val);
448 extern void pci_register_hose(struct pci_controller* hose);
449 extern struct pci_controller* pci_bus_to_hose(int bus);
451 extern int pci_hose_scan(struct pci_controller *hose);
452 extern int pci_hose_scan_bus(struct pci_controller *hose, int bus);
454 extern void pciauto_region_init(struct pci_region* res);
455 extern void pciauto_region_align(struct pci_region *res, unsigned long size);
456 extern int pciauto_region_allocate(struct pci_region* res, unsigned int size, unsigned int *bar);
457 extern void pciauto_setup_device(struct pci_controller *hose,
458 pci_dev_t dev, int bars_num,
459 struct pci_region *mem,
460 struct pci_region *io);
461 int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
463 extern pci_dev_t pci_find_device (unsigned int vendor, unsigned int device, int index);
464 extern pci_dev_t pci_find_devices (struct pci_device_id *ids, int index);
465 extern pci_dev_t pci_find_class(int wanted_class, int wanted_sub_code,
466 int wanted_prog_if, int index);
468 extern int pci_hose_config_device(struct pci_controller *hose,
472 unsigned long command);
474 #ifdef CONFIG_MPC824X
475 extern void pci_mpc824x_init (struct pci_controller *hose);