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authorPaul Mundt <lethal@linux-sh.org>2009-04-20 08:46:42 -0400
committerPaul Mundt <lethal@linux-sh.org>2009-04-20 08:46:42 -0400
commit805fcc88999162b361ef0b0ce25782ef65f147d7 (patch)
tree6d39798614428034f9fada4bd6406d2100c634b6 /arch/sh
parent2d5efc190eb415dbff79ffab4f8ea731ab0288a9 (diff)
sh: pci: Kill off the last remnants of the now unused pci-auto code.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/drivers/pci/Kconfig18
-rw-r--r--arch/sh/drivers/pci/Makefile1
-rw-r--r--arch/sh/drivers/pci/pci-auto.c546
-rw-r--r--arch/sh/drivers/pci/pci.c75
-rw-r--r--arch/sh/include/asm/pci.h16
5 files changed, 0 insertions, 656 deletions
diff --git a/arch/sh/drivers/pci/Kconfig b/arch/sh/drivers/pci/Kconfig
index 1d53496b1498..ea903a984f01 100644
--- a/arch/sh/drivers/pci/Kconfig
+++ b/arch/sh/drivers/pci/Kconfig
@@ -18,24 +18,6 @@ config SH_PCIDMA_NONCOHERENT
18 bridge integrated with your SH CPU, refer carefully to the chip specs 18 bridge integrated with your SH CPU, refer carefully to the chip specs
19 to see if you can say 'N' here. Otherwise, leave it as 'Y'. 19 to see if you can say 'N' here. Otherwise, leave it as 'Y'.
20 20
21# Temporary config option for transitioning off of PCI_AUTO
22config PCI_NEW 21config PCI_NEW
23 def_bool y 22 def_bool y
24 depends on PCI 23 depends on PCI
25
26# This is also board-specific
27config PCI_AUTO
28 bool
29 depends on PCI && !PCI_NEW
30 default y
31
32config PCI_AUTO_UPDATE_RESOURCES
33 bool
34 depends on PCI_AUTO
35 default y if !SH_DREAMCAST
36 help
37 Selecting this option will cause the PCI auto code to leave your
38 BAR values alone. Otherwise they will be updated automatically. If
39 for some reason, you have a board that simply refuses to work
40 with its resources updated beyond what they are when the device
41 is powered up, set this to N. Everyone else will want this as Y.
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index e388a70d1463..a8350ccfa9d3 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -2,7 +2,6 @@
2# Makefile for the PCI specific kernel interface routines under Linux. 2# Makefile for the PCI specific kernel interface routines under Linux.
3# 3#
4obj-y += pci-lib.o 4obj-y += pci-lib.o
5obj-$(CONFIG_PCI_AUTO) += pci.o pci-auto.o
6obj-$(CONFIG_PCI_NEW) += pci-new.o 5obj-$(CONFIG_PCI_NEW) += pci-new.o
7 6
8obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o 7obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o
diff --git a/arch/sh/drivers/pci/pci-auto.c b/arch/sh/drivers/pci/pci-auto.c
deleted file mode 100644
index 1d715ec405b2..000000000000
--- a/arch/sh/drivers/pci/pci-auto.c
+++ /dev/null
@@ -1,546 +0,0 @@
1/*
2 * PCI autoconfiguration library
3 *
4 * Author: Matt Porter <mporter@mvista.com>
5 *
6 * Copyright 2000, 2001 MontaVista Software Inc.
7 * Copyright 2001 Bradley D. LaRonde <brad@ltc.com>
8 * Copyright 2003 Paul Mundt <lethal@linux-sh.org>
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16/*
17 * Modified for MIPS by Jun Sun, jsun@mvista.com
18 *
19 * . Simplify the interface between pci_auto and the rest: a single function.
20 * . Assign resources from low address to upper address.
21 * . change most int to u32.
22 *
23 * Further modified to include it as mips generic code, ppopov@mvista.com.
24 *
25 * 2001-10-26 Bradley D. LaRonde <brad@ltc.com>
26 * - Add a top_bus argument to the "early config" functions so that
27 * they can set a fake parent bus pointer to convince the underlying
28 * pci ops to use type 1 configuration for sub busses.
29 * - Set bridge base and limit registers correctly.
30 * - Align io and memory base properly before and after bridge setup.
31 * - Don't fall through to pci_setup_bars for bridge.
32 * - Reformat the debug output to look more like lspci's output.
33 *
34 * Cloned for SuperH by M. R. Brown, mrbrown@0xd6.org
35 *
36 * 2003-08-05 Paul Mundt <lethal@linux-sh.org>
37 * - Don't update the BAR values on systems that already have valid addresses
38 * and don't want these updated for whatever reason, by way of a new config
39 * option check. However, we still read in the old BAR values so that they
40 * can still be reported through the debug output.
41 */
42
43#include <linux/kernel.h>
44#include <linux/init.h>
45#include <linux/types.h>
46#include <linux/pci.h>
47
48#define DEBUG
49#ifdef DEBUG
50#define DBG(x...) printk(x)
51#else
52#define DBG(x...)
53#endif
54
55/*
56 * These functions are used early on before PCI scanning is done
57 * and all of the pci_dev and pci_bus structures have been created.
58 */
59static struct pci_dev *fake_pci_dev(struct pci_channel *hose,
60 int top_bus, int busnr, int devfn)
61{
62 static struct pci_dev dev;
63 static struct pci_bus bus;
64
65 dev.bus = &bus;
66 dev.sysdata = hose;
67 dev.devfn = devfn;
68 bus.number = busnr;
69 bus.ops = hose->pci_ops;
70 bus.sysdata = hose;
71
72 if(busnr != top_bus)
73 /* Fake a parent bus structure. */
74 bus.parent = &bus;
75 else
76 bus.parent = NULL;
77
78 return &dev;
79}
80
81#define EARLY_PCI_OP(rw, size, type) \
82static int early_##rw##_config_##size(struct pci_channel *hose, \
83 int top_bus, int bus, int devfn, int offset, type value) \
84{ \
85 return pci_##rw##_config_##size( \
86 fake_pci_dev(hose, top_bus, bus, devfn), \
87 offset, value); \
88}
89
90EARLY_PCI_OP(read, byte, u8 *)
91EARLY_PCI_OP(read, word, u16 *)
92EARLY_PCI_OP(read, dword, u32 *)
93EARLY_PCI_OP(write, byte, u8)
94EARLY_PCI_OP(write, word, u16)
95EARLY_PCI_OP(write, dword, u32)
96
97static struct resource *io_resource_inuse;
98static struct resource *mem_resource_inuse;
99
100static u32 pciauto_lower_iospc;
101static u32 pciauto_upper_iospc;
102
103static u32 pciauto_lower_memspc;
104static u32 pciauto_upper_memspc;
105
106static void __init
107pciauto_setup_bars(struct pci_channel *hose,
108 int top_bus,
109 int current_bus,
110 int pci_devfn,
111 int bar_limit)
112{
113 u32 bar_response, bar_size, bar_value;
114 u32 bar, addr_mask, bar_nr = 0;
115 u32 * upper_limit;
116 u32 * lower_limit;
117 int found_mem64 = 0;
118
119 for (bar = PCI_BASE_ADDRESS_0; bar <= bar_limit; bar+=4) {
120 u32 bar_addr;
121
122 /* Read the old BAR value */
123 early_read_config_dword(hose, top_bus,
124 current_bus,
125 pci_devfn,
126 bar,
127 &bar_addr);
128
129 /* Tickle the BAR and get the response */
130 early_write_config_dword(hose, top_bus,
131 current_bus,
132 pci_devfn,
133 bar,
134 0xffffffff);
135
136 early_read_config_dword(hose, top_bus,
137 current_bus,
138 pci_devfn,
139 bar,
140 &bar_response);
141
142 /*
143 * Write the old BAR value back out, only update the BAR
144 * if we implicitly want resources to be updated, which
145 * is done by the generic code further down. -- PFM.
146 */
147 early_write_config_dword(hose, top_bus,
148 current_bus,
149 pci_devfn,
150 bar,
151 bar_addr);
152
153 /* If BAR is not implemented go to the next BAR */
154 if (!bar_response)
155 continue;
156
157 /*
158 * Workaround for a BAR that doesn't use its upper word,
159 * like the ALi 1535D+ PCI DC-97 Controller Modem (M5457).
160 * bdl <brad@ltc.com>
161 */
162 if (!(bar_response & 0xffff0000))
163 bar_response |= 0xffff0000;
164
165retry:
166 /* Check the BAR type and set our address mask */
167 if (bar_response & PCI_BASE_ADDRESS_SPACE) {
168 addr_mask = PCI_BASE_ADDRESS_IO_MASK;
169 upper_limit = &pciauto_upper_iospc;
170 lower_limit = &pciauto_lower_iospc;
171 DBG(" I/O");
172 } else {
173 if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) ==
174 PCI_BASE_ADDRESS_MEM_TYPE_64)
175 found_mem64 = 1;
176
177 addr_mask = PCI_BASE_ADDRESS_MEM_MASK;
178 upper_limit = &pciauto_upper_memspc;
179 lower_limit = &pciauto_lower_memspc;
180 DBG(" Mem");
181 }
182
183
184 /* Calculate requested size */
185 bar_size = ~(bar_response & addr_mask) + 1;
186
187 /* Allocate a base address */
188 bar_value = ((*lower_limit - 1) & ~(bar_size - 1)) + bar_size;
189
190 if ((bar_value + bar_size) > *upper_limit) {
191 if (bar_response & PCI_BASE_ADDRESS_SPACE) {
192 if (io_resource_inuse->child) {
193 io_resource_inuse =
194 io_resource_inuse->child;
195 pciauto_lower_iospc =
196 io_resource_inuse->start;
197 pciauto_upper_iospc =
198 io_resource_inuse->end + 1;
199 goto retry;
200 }
201
202 } else {
203 if (mem_resource_inuse->child) {
204 mem_resource_inuse =
205 mem_resource_inuse->child;
206 pciauto_lower_memspc =
207 mem_resource_inuse->start;
208 pciauto_upper_memspc =
209 mem_resource_inuse->end + 1;
210 goto retry;
211 }
212 }
213 DBG(" unavailable -- skipping, value %x size %x\n",
214 bar_value, bar_size);
215 continue;
216 }
217
218 if (bar_value < *lower_limit || (bar_value + bar_size) >= *upper_limit) {
219 DBG(" unavailable -- skipping, value %x size %x\n",
220 bar_value, bar_size);
221 continue;
222 }
223
224#ifdef CONFIG_PCI_AUTO_UPDATE_RESOURCES
225 /* Write it out and update our limit */
226 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
227 bar, bar_value);
228#endif
229
230 *lower_limit = bar_value + bar_size;
231
232 /*
233 * If we are a 64-bit decoder then increment to the
234 * upper 32 bits of the bar and force it to locate
235 * in the lower 4GB of memory.
236 */
237 if (found_mem64) {
238 bar += 4;
239 early_write_config_dword(hose, top_bus,
240 current_bus,
241 pci_devfn,
242 bar,
243 0x00000000);
244 }
245
246 DBG(" at 0x%.8x [size=0x%x]\n", bar_value, bar_size);
247
248 bar_nr++;
249 }
250
251}
252
253static void __init
254pciauto_prescan_setup_bridge(struct pci_channel *hose,
255 int top_bus,
256 int current_bus,
257 int pci_devfn,
258 int sub_bus)
259{
260 /* Configure bus number registers */
261 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
262 PCI_PRIMARY_BUS, current_bus);
263 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
264 PCI_SECONDARY_BUS, sub_bus + 1);
265 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
266 PCI_SUBORDINATE_BUS, 0xff);
267
268 /* Align memory and I/O to 1MB and 4KB boundaries. */
269 pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1))
270 & ~(0x100000 - 1);
271 pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1))
272 & ~(0x1000 - 1);
273
274 /* Set base (lower limit) of address range behind bridge. */
275 early_write_config_word(hose, top_bus, current_bus, pci_devfn,
276 PCI_MEMORY_BASE, pciauto_lower_memspc >> 16);
277 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
278 PCI_IO_BASE, (pciauto_lower_iospc & 0x0000f000) >> 8);
279 early_write_config_word(hose, top_bus, current_bus, pci_devfn,
280 PCI_IO_BASE_UPPER16, pciauto_lower_iospc >> 16);
281
282 /* We don't support prefetchable memory for now, so disable */
283 early_write_config_word(hose, top_bus, current_bus, pci_devfn,
284 PCI_PREF_MEMORY_BASE, 0);
285 early_write_config_word(hose, top_bus, current_bus, pci_devfn,
286 PCI_PREF_MEMORY_LIMIT, 0);
287}
288
289static void __init
290pciauto_postscan_setup_bridge(struct pci_channel *hose,
291 int top_bus,
292 int current_bus,
293 int pci_devfn,
294 int sub_bus)
295{
296 u32 temp;
297
298 /*
299 * [jsun] we always bump up baselines a little, so that if there
300 * nothing behind P2P bridge, we don't wind up overlapping IO/MEM
301 * spaces.
302 */
303 pciauto_lower_memspc += 1;
304 pciauto_lower_iospc += 1;
305
306 /* Configure bus number registers */
307 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
308 PCI_SUBORDINATE_BUS, sub_bus);
309
310 /* Set upper limit of address range behind bridge. */
311 early_write_config_word(hose, top_bus, current_bus, pci_devfn,
312 PCI_MEMORY_LIMIT, pciauto_lower_memspc >> 16);
313 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
314 PCI_IO_LIMIT, (pciauto_lower_iospc & 0x0000f000) >> 8);
315 early_write_config_word(hose, top_bus, current_bus, pci_devfn,
316 PCI_IO_LIMIT_UPPER16, pciauto_lower_iospc >> 16);
317
318 /* Align memory and I/O to 1MB and 4KB boundaries. */
319 pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1))
320 & ~(0x100000 - 1);
321 pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1))
322 & ~(0x1000 - 1);
323
324 /* Enable memory and I/O accesses, enable bus master */
325 early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
326 PCI_COMMAND, &temp);
327 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
328 PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY
329 | PCI_COMMAND_MASTER);
330}
331
332static void __init
333pciauto_prescan_setup_cardbus_bridge(struct pci_channel *hose,
334 int top_bus,
335 int current_bus,
336 int pci_devfn,
337 int sub_bus)
338{
339 /* Configure bus number registers */
340 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
341 PCI_PRIMARY_BUS, current_bus);
342 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
343 PCI_SECONDARY_BUS, sub_bus + 1);
344 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
345 PCI_SUBORDINATE_BUS, 0xff);
346
347 /* Align memory and I/O to 4KB and 4 byte boundaries. */
348 pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1))
349 & ~(0x1000 - 1);
350 pciauto_lower_iospc = (pciauto_lower_iospc + (0x4 - 1))
351 & ~(0x4 - 1);
352
353 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
354 PCI_CB_MEMORY_BASE_0, pciauto_lower_memspc);
355 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
356 PCI_CB_IO_BASE_0, pciauto_lower_iospc);
357}
358
359static void __init
360pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose,
361 int top_bus,
362 int current_bus,
363 int pci_devfn,
364 int sub_bus)
365{
366 u32 temp;
367
368 /*
369 * [jsun] we always bump up baselines a little, so that if there
370 * nothing behind P2P bridge, we don't wind up overlapping IO/MEM
371 * spaces.
372 */
373 pciauto_lower_memspc += 1;
374 pciauto_lower_iospc += 1;
375
376 /*
377 * Configure subordinate bus number. The PCI subsystem
378 * bus scan will renumber buses (reserving three additional
379 * for this PCI<->CardBus bridge for the case where a CardBus
380 * adapter contains a P2P or CB2CB bridge.
381 */
382
383 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
384 PCI_SUBORDINATE_BUS, sub_bus);
385
386 /*
387 * Reserve an additional 4MB for mem space and 16KB for
388 * I/O space. This should cover any additional space
389 * requirement of unusual CardBus devices with
390 * additional bridges that can consume more address space.
391 *
392 * Although pcmcia-cs currently will reprogram bridge
393 * windows, the goal is to add an option to leave them
394 * alone and use the bridge window ranges as the regions
395 * that are searched for free resources upon hot-insertion
396 * of a device. This will allow a PCI<->CardBus bridge
397 * configured by this routine to happily live behind a
398 * P2P bridge in a system.
399 */
400 /* Align memory and I/O to 4KB and 4 byte boundaries. */
401 pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1))
402 & ~(0x1000 - 1);
403 pciauto_lower_iospc = (pciauto_lower_iospc + (0x4 - 1))
404 & ~(0x4 - 1);
405 /* Set up memory and I/O filter limits, assume 32-bit I/O space */
406 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
407 PCI_CB_MEMORY_LIMIT_0, pciauto_lower_memspc - 1);
408 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
409 PCI_CB_IO_LIMIT_0, pciauto_lower_iospc - 1);
410
411 /* Enable memory and I/O accesses, enable bus master */
412 early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
413 PCI_COMMAND, &temp);
414 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
415 PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
416 PCI_COMMAND_MASTER);
417}
418
419#define PCIAUTO_IDE_MODE_MASK 0x05
420
421static int __init
422pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus)
423{
424 int sub_bus;
425 u32 pci_devfn, pci_class, cmdstat, found_multi=0;
426 unsigned short vid, did;
427 unsigned char header_type;
428 int devfn_start = 0;
429 int devfn_stop = 0xff;
430
431 sub_bus = current_bus;
432
433 if (hose->first_devfn)
434 devfn_start = hose->first_devfn;
435 if (hose->last_devfn)
436 devfn_stop = hose->last_devfn;
437
438 for (pci_devfn=devfn_start; pci_devfn<devfn_stop; pci_devfn++) {
439
440 if (PCI_FUNC(pci_devfn) && !found_multi)
441 continue;
442
443 early_read_config_word(hose, top_bus, current_bus, pci_devfn,
444 PCI_VENDOR_ID, &vid);
445
446 if (vid == 0xffff) continue;
447
448 early_read_config_byte(hose, top_bus, current_bus, pci_devfn,
449 PCI_HEADER_TYPE, &header_type);
450
451 if (!PCI_FUNC(pci_devfn))
452 found_multi = header_type & 0x80;
453
454 early_read_config_word(hose, top_bus, current_bus, pci_devfn,
455 PCI_DEVICE_ID, &did);
456
457 early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
458 PCI_CLASS_REVISION, &pci_class);
459
460 DBG("%.2x:%.2x.%x Class %.4x: %.4x:%.4x",
461 current_bus, PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn),
462 pci_class >> 16, vid, did);
463 if (pci_class & 0xff)
464 DBG(" (rev %.2x)", pci_class & 0xff);
465 DBG("\n");
466
467 if ((pci_class >> 16) == PCI_CLASS_BRIDGE_PCI) {
468 DBG(" Bridge: primary=%.2x, secondary=%.2x\n",
469 current_bus, sub_bus + 1);
470 pciauto_prescan_setup_bridge(hose, top_bus, current_bus,
471 pci_devfn, sub_bus);
472 DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n",
473 sub_bus + 1,
474 pciauto_lower_iospc, pciauto_lower_memspc);
475 sub_bus = pciauto_bus_scan(hose, top_bus, sub_bus+1);
476 DBG("Back to bus %.2x\n", current_bus);
477 pciauto_postscan_setup_bridge(hose, top_bus, current_bus,
478 pci_devfn, sub_bus);
479 continue;
480 } else if ((pci_class >> 16) == PCI_CLASS_BRIDGE_CARDBUS) {
481 DBG(" CARDBUS Bridge: primary=%.2x, secondary=%.2x\n",
482 current_bus, sub_bus + 1);
483 DBG("PCI Autoconfig: Found CardBus bridge, device %d function %d\n", PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn));
484 /* Place CardBus Socket/ExCA registers */
485 pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_0);
486
487 pciauto_prescan_setup_cardbus_bridge(hose, top_bus,
488 current_bus, pci_devfn, sub_bus);
489
490 DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n",
491 sub_bus + 1,
492 pciauto_lower_iospc, pciauto_lower_memspc);
493 sub_bus = pciauto_bus_scan(hose, top_bus, sub_bus+1);
494 DBG("Back to bus %.2x, sub_bus is %x\n", current_bus, sub_bus);
495 pciauto_postscan_setup_cardbus_bridge(hose, top_bus,
496 current_bus, pci_devfn, sub_bus);
497 continue;
498 } else if ((pci_class >> 16) == PCI_CLASS_STORAGE_IDE) {
499
500 unsigned char prg_iface;
501
502 early_read_config_byte(hose, top_bus, current_bus,
503 pci_devfn, PCI_CLASS_PROG, &prg_iface);
504 if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) {
505 DBG("Skipping legacy mode IDE controller\n");
506 continue;
507 }
508 }
509
510 /*
511 * Found a peripheral, enable some standard
512 * settings
513 */
514 early_read_config_dword(hose, top_bus, current_bus, pci_devfn,
515 PCI_COMMAND, &cmdstat);
516 early_write_config_dword(hose, top_bus, current_bus, pci_devfn,
517 PCI_COMMAND, cmdstat | PCI_COMMAND_IO |
518 PCI_COMMAND_MEMORY |
519 PCI_COMMAND_MASTER);
520 early_write_config_byte(hose, top_bus, current_bus, pci_devfn,
521 PCI_LATENCY_TIMER, 0x80);
522
523 /* Allocate PCI I/O and/or memory space */
524 pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_5);
525 }
526 return sub_bus;
527}
528
529int __init
530pciauto_assign_resources(int busno, struct pci_channel *hose)
531{
532 /* setup resource limits */
533 io_resource_inuse = hose->io_resource;
534 mem_resource_inuse = hose->mem_resource;
535
536 pciauto_lower_iospc = io_resource_inuse->start;
537 pciauto_upper_iospc = io_resource_inuse->end + 1;
538 pciauto_lower_memspc = mem_resource_inuse->start;
539 pciauto_upper_memspc = mem_resource_inuse->end + 1;
540 DBG("Autoconfig PCI channel 0x%p\n", hose);
541 DBG("Scanning bus %.2x, I/O 0x%.8x:0x%.8x, Mem 0x%.8x:0x%.8x\n",
542 busno, pciauto_lower_iospc, pciauto_upper_iospc,
543 pciauto_lower_memspc, pciauto_upper_memspc);
544
545 return pciauto_bus_scan(hose, busno, busno);
546}
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
deleted file mode 100644
index 8c332b2a4641..000000000000
--- a/arch/sh/drivers/pci/pci.c
+++ /dev/null
@@ -1,75 +0,0 @@
1/*
2 * arch/sh/drivers/pci/pci.c
3 *
4 * Copyright (c) 2002 M. R. Brown <mrbrown@linux-sh.org>
5 * Copyright (c) 2004 - 2006 Paul Mundt <lethal@linux-sh.org>
6 *
7 * These functions are collected here to reduce duplication of common
8 * code amongst the many platform-specific PCI support code files.
9 *
10 * These routines require the following board-specific routines:
11 * void pcibios_fixup_irqs();
12 *
13 * See include/asm-sh/pci.h for more information.
14 *
15 * This file is subject to the terms and conditions of the GNU General Public
16 * License. See the file "COPYING" in the main directory of this archive
17 * for more details.
18 */
19#include <linux/kernel.h>
20#include <linux/pci.h>
21#include <linux/init.h>
22#include <linux/dma-debug.h>
23#include <asm/io.h>
24
25static int __init pcibios_init(void)
26{
27 struct pci_channel *p;
28 struct pci_bus *bus;
29 int busno;
30
31 /* init channels */
32 busno = 0;
33 for (p = board_pci_channels; p->init; p++) {
34 if (p->init(p) == 0)
35 p->enabled = 1;
36 else
37 pr_err("Unable to init pci channel %d\n", busno);
38 busno++;
39 }
40
41#ifdef CONFIG_PCI_AUTO
42 /* assign resources */
43 busno = 0;
44 for (p = board_pci_channels; p->init; p++)
45 if (p->enabled)
46 busno = pciauto_assign_resources(busno, p) + 1;
47#endif
48
49 /* scan the buses */
50 busno = 0;
51 for (p = board_pci_channels; p->init; p++) {
52 if (p->enabled) {
53 bus = pci_scan_bus(busno, p->pci_ops, p);
54 busno = bus->subordinate + 1;
55 }
56 }
57
58 pci_fixup_irqs(pci_common_swizzle, pcibios_map_platform_irq);
59
60 dma_debug_add_bus(&pci_bus_type);
61
62 return 0;
63}
64subsys_initcall(pcibios_init);
65
66/*
67 * Called after each bus is probed, but before its children
68 * are examined.
69 */
70void __devinit __weak pcibios_fixup_bus(struct pci_bus *bus)
71{
72 pci_read_bridge_bases(bus);
73}
74
75EXPORT_SYMBOL(board_pci_channels);
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index f36c7899295b..f910121559b0 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -19,8 +19,6 @@
19struct pci_channel { 19struct pci_channel {
20 struct pci_channel *next; 20 struct pci_channel *next;
21 21
22 int (*init)(struct pci_channel *chan);
23
24 struct pci_ops *pci_ops; 22 struct pci_ops *pci_ops;
25 struct resource *io_resource; 23 struct resource *io_resource;
26 struct resource *mem_resource; 24 struct resource *mem_resource;
@@ -28,20 +26,11 @@ struct pci_channel {
28 unsigned long io_offset; 26 unsigned long io_offset;
29 unsigned long mem_offset; 27 unsigned long mem_offset;
30 28
31 int first_devfn;
32 int last_devfn;
33 int enabled;
34
35 unsigned long reg_base; 29 unsigned long reg_base;
36 30
37 unsigned long io_map_base; 31 unsigned long io_map_base;
38}; 32};
39 33
40/*
41 * Each board initializes this array and terminates it with a NULL entry.
42 */
43extern struct pci_channel board_pci_channels[];
44
45extern void register_pci_controller(struct pci_channel *hose); 34extern void register_pci_controller(struct pci_channel *hose);
46 35
47extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM; 36extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
@@ -122,13 +111,8 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
122#endif 111#endif
123 112
124/* Board-specific fixup routines. */ 113/* Board-specific fixup routines. */
125int pcibios_init_platform(void);
126int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); 114int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
127 115
128#ifdef CONFIG_PCI_AUTO
129int pciauto_assign_resources(int busno, struct pci_channel *hose);
130#endif
131
132extern void pcibios_resource_to_bus(struct pci_dev *dev, 116extern void pcibios_resource_to_bus(struct pci_dev *dev,
133 struct pci_bus_region *region, struct resource *res); 117 struct pci_bus_region *region, struct resource *res);
134 118
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-20 11:36:29 -0500