Commit | Line | Data |
---|---|---|
8369ae33 RM |
1 | /* |
2 | * Broadcom specific AMBA | |
3 | * Bus subsystem | |
4 | * | |
5 | * Licensed under the GNU/GPL. See COPYING for details. | |
6 | */ | |
7 | ||
8 | #include "bcma_private.h" | |
200351c7 | 9 | #include <linux/module.h> |
53cd2fdb | 10 | #include <linux/mmc/sdio_func.h> |
d57ef3a6 | 11 | #include <linux/platform_device.h> |
53cd2fdb | 12 | #include <linux/pci.h> |
8369ae33 | 13 | #include <linux/bcma/bcma.h> |
eef72699 | 14 | #include <linux/slab.h> |
2101e533 | 15 | #include <linux/of_address.h> |
71783576 | 16 | #include <linux/of_irq.h> |
cae761b5 | 17 | #include <linux/of_platform.h> |
8369ae33 RM |
18 | |
19 | MODULE_DESCRIPTION("Broadcom's specific AMBA driver"); | |
20 | MODULE_LICENSE("GPL"); | |
21 | ||
8f9ada4f HM |
22 | /* contains the number the next bus should get. */ |
23 | static unsigned int bcma_bus_next_num = 0; | |
24 | ||
25 | /* bcma_buses_mutex locks the bcma_bus_next_num */ | |
26 | static DEFINE_MUTEX(bcma_buses_mutex); | |
27 | ||
8369ae33 RM |
28 | static int bcma_bus_match(struct device *dev, struct device_driver *drv); |
29 | static int bcma_device_probe(struct device *dev); | |
30 | static int bcma_device_remove(struct device *dev); | |
886b66ef | 31 | static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env); |
8369ae33 RM |
32 | |
33 | static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf) | |
34 | { | |
35 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
36 | return sprintf(buf, "0x%03X\n", core->id.manuf); | |
37 | } | |
fdcf4f81 GKH |
38 | static DEVICE_ATTR_RO(manuf); |
39 | ||
8369ae33 RM |
40 | static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf) |
41 | { | |
42 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
43 | return sprintf(buf, "0x%03X\n", core->id.id); | |
44 | } | |
fdcf4f81 GKH |
45 | static DEVICE_ATTR_RO(id); |
46 | ||
8369ae33 RM |
47 | static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf) |
48 | { | |
49 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
50 | return sprintf(buf, "0x%02X\n", core->id.rev); | |
51 | } | |
fdcf4f81 GKH |
52 | static DEVICE_ATTR_RO(rev); |
53 | ||
8369ae33 RM |
54 | static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf) |
55 | { | |
56 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
57 | return sprintf(buf, "0x%X\n", core->id.class); | |
58 | } | |
fdcf4f81 GKH |
59 | static DEVICE_ATTR_RO(class); |
60 | ||
61 | static struct attribute *bcma_device_attrs[] = { | |
62 | &dev_attr_manuf.attr, | |
63 | &dev_attr_id.attr, | |
64 | &dev_attr_rev.attr, | |
65 | &dev_attr_class.attr, | |
66 | NULL, | |
8369ae33 | 67 | }; |
fdcf4f81 | 68 | ATTRIBUTE_GROUPS(bcma_device); |
8369ae33 RM |
69 | |
70 | static struct bus_type bcma_bus_type = { | |
71 | .name = "bcma", | |
72 | .match = bcma_bus_match, | |
73 | .probe = bcma_device_probe, | |
74 | .remove = bcma_device_remove, | |
886b66ef | 75 | .uevent = bcma_device_uevent, |
fdcf4f81 | 76 | .dev_groups = bcma_device_groups, |
8369ae33 RM |
77 | }; |
78 | ||
6d5cfc9f RM |
79 | static u16 bcma_cc_core_id(struct bcma_bus *bus) |
80 | { | |
81 | if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) | |
82 | return BCMA_CORE_4706_CHIPCOMMON; | |
83 | return BCMA_CORE_CHIPCOMMON; | |
84 | } | |
85 | ||
929a03ae HM |
86 | struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid, |
87 | u8 unit) | |
dfae7143 HM |
88 | { |
89 | struct bcma_device *core; | |
90 | ||
91 | list_for_each_entry(core, &bus->cores, list) { | |
92 | if (core->id.id == coreid && core->core_unit == unit) | |
93 | return core; | |
94 | } | |
95 | return NULL; | |
96 | } | |
b2395b8a | 97 | EXPORT_SYMBOL_GPL(bcma_find_core_unit); |
dfae7143 | 98 | |
88f9b65d RM |
99 | bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value, |
100 | int timeout) | |
101 | { | |
102 | unsigned long deadline = jiffies + timeout; | |
103 | u32 val; | |
104 | ||
105 | do { | |
106 | val = bcma_read32(core, reg); | |
107 | if ((val & mask) == value) | |
108 | return true; | |
109 | cpu_relax(); | |
110 | udelay(10); | |
111 | } while (!time_after_eq(jiffies, deadline)); | |
112 | ||
113 | bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg); | |
114 | ||
115 | return false; | |
116 | } | |
117 | ||
8369ae33 RM |
118 | static void bcma_release_core_dev(struct device *dev) |
119 | { | |
120 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
ecd177c2 HM |
121 | if (core->io_addr) |
122 | iounmap(core->io_addr); | |
123 | if (core->io_wrap) | |
124 | iounmap(core->io_wrap); | |
8369ae33 RM |
125 | kfree(core); |
126 | } | |
127 | ||
37a7f876 RM |
128 | static bool bcma_is_core_needed_early(u16 core_id) |
129 | { | |
130 | switch (core_id) { | |
131 | case BCMA_CORE_NS_NAND: | |
132 | case BCMA_CORE_NS_QSPI: | |
133 | return true; | |
134 | } | |
135 | ||
136 | return false; | |
137 | } | |
138 | ||
2101e533 HM |
139 | static struct device_node *bcma_of_find_child_device(struct platform_device *parent, |
140 | struct bcma_device *core) | |
141 | { | |
142 | struct device_node *node; | |
143 | u64 size; | |
144 | const __be32 *reg; | |
145 | ||
146 | if (!parent || !parent->dev.of_node) | |
147 | return NULL; | |
148 | ||
149 | for_each_child_of_node(parent->dev.of_node, node) { | |
150 | reg = of_get_address(node, 0, &size, NULL); | |
151 | if (!reg) | |
152 | continue; | |
153 | if (of_translate_address(node, reg) == core->addr) | |
154 | return node; | |
155 | } | |
156 | return NULL; | |
157 | } | |
158 | ||
71783576 HM |
159 | static int bcma_of_irq_parse(struct platform_device *parent, |
160 | struct bcma_device *core, | |
161 | struct of_phandle_args *out_irq, int num) | |
162 | { | |
163 | __be32 laddr[1]; | |
164 | int rc; | |
165 | ||
166 | if (core->dev.of_node) { | |
167 | rc = of_irq_parse_one(core->dev.of_node, num, out_irq); | |
168 | if (!rc) | |
169 | return rc; | |
170 | } | |
171 | ||
172 | out_irq->np = parent->dev.of_node; | |
173 | out_irq->args_count = 1; | |
174 | out_irq->args[0] = num; | |
175 | ||
176 | laddr[0] = cpu_to_be32(core->addr); | |
177 | return of_irq_parse_raw(laddr, out_irq); | |
178 | } | |
179 | ||
180 | static unsigned int bcma_of_get_irq(struct platform_device *parent, | |
181 | struct bcma_device *core, int num) | |
182 | { | |
183 | struct of_phandle_args out_irq; | |
184 | int ret; | |
185 | ||
c58d900c | 186 | if (!IS_ENABLED(CONFIG_OF_IRQ) || !parent || !parent->dev.of_node) |
71783576 HM |
187 | return 0; |
188 | ||
189 | ret = bcma_of_irq_parse(parent, core, &out_irq, num); | |
190 | if (ret) { | |
191 | bcma_debug(core->bus, "bcma_of_get_irq() failed with rc=%d\n", | |
192 | ret); | |
193 | return 0; | |
194 | } | |
195 | ||
196 | return irq_create_of_mapping(&out_irq); | |
197 | } | |
198 | ||
2101e533 HM |
199 | static void bcma_of_fill_device(struct platform_device *parent, |
200 | struct bcma_device *core) | |
201 | { | |
202 | struct device_node *node; | |
203 | ||
c58d900c AB |
204 | if (!IS_ENABLED(CONFIG_OF_IRQ)) |
205 | return; | |
206 | ||
2101e533 HM |
207 | node = bcma_of_find_child_device(parent, core); |
208 | if (node) | |
209 | core->dev.of_node = node; | |
71783576 HM |
210 | |
211 | core->irq = bcma_of_get_irq(parent, core, 0); | |
2101e533 | 212 | } |
2101e533 | 213 | |
85eb92e8 HM |
214 | unsigned int bcma_core_irq(struct bcma_device *core, int num) |
215 | { | |
216 | struct bcma_bus *bus = core->bus; | |
217 | unsigned int mips_irq; | |
218 | ||
219 | switch (bus->hosttype) { | |
220 | case BCMA_HOSTTYPE_PCI: | |
221 | return bus->host_pci->irq; | |
222 | case BCMA_HOSTTYPE_SOC: | |
223 | if (bus->drv_mips.core && num == 0) { | |
224 | mips_irq = bcma_core_mips_irq(core); | |
225 | return mips_irq <= 4 ? mips_irq + 2 : 0; | |
226 | } | |
71783576 HM |
227 | if (bus->host_pdev) |
228 | return bcma_of_get_irq(bus->host_pdev, core, num); | |
229 | return 0; | |
85eb92e8 HM |
230 | case BCMA_HOSTTYPE_SDIO: |
231 | return 0; | |
232 | } | |
233 | ||
234 | return 0; | |
235 | } | |
236 | EXPORT_SYMBOL(bcma_core_irq); | |
237 | ||
ab54bc84 | 238 | void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core) |
6e094bd8 | 239 | { |
6e094bd8 RM |
240 | core->dev.release = bcma_release_core_dev; |
241 | core->dev.bus = &bcma_bus_type; | |
242 | dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index); | |
243 | ||
244 | switch (bus->hosttype) { | |
245 | case BCMA_HOSTTYPE_PCI: | |
246 | core->dev.parent = &bus->host_pci->dev; | |
247 | core->dma_dev = &bus->host_pci->dev; | |
248 | core->irq = bus->host_pci->irq; | |
249 | break; | |
250 | case BCMA_HOSTTYPE_SOC: | |
251 | core->dev.dma_mask = &core->dev.coherent_dma_mask; | |
2101e533 HM |
252 | if (bus->host_pdev) { |
253 | core->dma_dev = &bus->host_pdev->dev; | |
254 | core->dev.parent = &bus->host_pdev->dev; | |
255 | bcma_of_fill_device(bus->host_pdev, core); | |
256 | } else { | |
257 | core->dma_dev = &core->dev; | |
258 | } | |
6e094bd8 RM |
259 | break; |
260 | case BCMA_HOSTTYPE_SDIO: | |
261 | break; | |
262 | } | |
ab54bc84 RM |
263 | } |
264 | ||
53cd2fdb HM |
265 | struct device *bcma_bus_get_host_dev(struct bcma_bus *bus) |
266 | { | |
267 | switch (bus->hosttype) { | |
268 | case BCMA_HOSTTYPE_PCI: | |
269 | if (bus->host_pci) | |
270 | return &bus->host_pci->dev; | |
271 | else | |
272 | return NULL; | |
273 | case BCMA_HOSTTYPE_SOC: | |
274 | if (bus->host_pdev) | |
275 | return &bus->host_pdev->dev; | |
276 | else | |
277 | return NULL; | |
278 | case BCMA_HOSTTYPE_SDIO: | |
279 | if (bus->host_sdio) | |
280 | return &bus->host_sdio->dev; | |
281 | else | |
282 | return NULL; | |
283 | } | |
284 | return NULL; | |
285 | } | |
286 | ||
799038ea RM |
287 | void bcma_init_bus(struct bcma_bus *bus) |
288 | { | |
289 | mutex_lock(&bcma_buses_mutex); | |
290 | bus->num = bcma_bus_next_num++; | |
291 | mutex_unlock(&bcma_buses_mutex); | |
292 | ||
293 | INIT_LIST_HEAD(&bus->cores); | |
294 | bus->nr_cores = 0; | |
295 | ||
296 | bcma_detect_chip(bus); | |
297 | } | |
298 | ||
ab54bc84 RM |
299 | static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core) |
300 | { | |
301 | int err; | |
6e094bd8 RM |
302 | |
303 | err = device_register(&core->dev); | |
304 | if (err) { | |
305 | bcma_err(bus, "Could not register dev for core 0x%03X\n", | |
306 | core->id.id); | |
307 | put_device(&core->dev); | |
308 | return; | |
309 | } | |
310 | core->dev_registered = true; | |
311 | } | |
312 | ||
313 | static int bcma_register_devices(struct bcma_bus *bus) | |
8369ae33 RM |
314 | { |
315 | struct bcma_device *core; | |
6e094bd8 | 316 | int err; |
8369ae33 RM |
317 | |
318 | list_for_each_entry(core, &bus->cores, list) { | |
319 | /* We support that cores ourself */ | |
320 | switch (core->id.id) { | |
6d5cfc9f | 321 | case BCMA_CORE_4706_CHIPCOMMON: |
8369ae33 | 322 | case BCMA_CORE_CHIPCOMMON: |
1716bcf3 | 323 | case BCMA_CORE_NS_CHIPCOMMON_B: |
8369ae33 RM |
324 | case BCMA_CORE_PCI: |
325 | case BCMA_CORE_PCIE: | |
f473832f | 326 | case BCMA_CORE_PCIE2: |
21e0534a | 327 | case BCMA_CORE_MIPS_74K: |
e1ac4b40 | 328 | case BCMA_CORE_4706_MAC_GBIT_COMMON: |
8369ae33 RM |
329 | continue; |
330 | } | |
331 | ||
37a7f876 RM |
332 | /* Early cores were already registered */ |
333 | if (bcma_is_core_needed_early(core->id.id)) | |
334 | continue; | |
335 | ||
10419d08 RM |
336 | /* Only first GMAC core on BCM4706 is connected and working */ |
337 | if (core->id.id == BCMA_CORE_4706_MAC_GBIT && | |
338 | core->core_unit > 0) | |
339 | continue; | |
340 | ||
6e094bd8 | 341 | bcma_register_core(bus, core); |
8369ae33 RM |
342 | } |
343 | ||
d6a3b51a | 344 | #ifdef CONFIG_BCMA_PFLASH |
73e4dbe4 RM |
345 | if (bus->drv_cc.pflash.present) { |
346 | err = platform_device_register(&bcma_pflash_dev); | |
347 | if (err) | |
348 | bcma_err(bus, "Error registering parallel flash\n"); | |
349 | } | |
350 | #endif | |
351 | ||
d57ef3a6 RM |
352 | #ifdef CONFIG_BCMA_SFLASH |
353 | if (bus->drv_cc.sflash.present) { | |
354 | err = platform_device_register(&bcma_sflash_dev); | |
355 | if (err) | |
356 | bcma_err(bus, "Error registering serial flash\n"); | |
357 | } | |
358 | #endif | |
359 | ||
371a0044 RM |
360 | #ifdef CONFIG_BCMA_NFLASH |
361 | if (bus->drv_cc.nflash.present) { | |
362 | err = platform_device_register(&bcma_nflash_dev); | |
363 | if (err) | |
364 | bcma_err(bus, "Error registering NAND flash\n"); | |
365 | } | |
366 | #endif | |
cf0936b0 HM |
367 | err = bcma_gpio_init(&bus->drv_cc); |
368 | if (err == -ENOTSUPP) | |
369 | bcma_debug(bus, "GPIO driver not activated\n"); | |
370 | else if (err) | |
371 | bcma_err(bus, "Error registering GPIO driver: %i\n", err); | |
371a0044 | 372 | |
a4855f39 HM |
373 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) { |
374 | err = bcma_chipco_watchdog_register(&bus->drv_cc); | |
375 | if (err) | |
376 | bcma_err(bus, "Error registering watchdog driver\n"); | |
377 | } | |
378 | ||
8369ae33 RM |
379 | return 0; |
380 | } | |
381 | ||
9b6cc9a8 | 382 | void bcma_unregister_cores(struct bcma_bus *bus) |
8369ae33 | 383 | { |
1fffa905 | 384 | struct bcma_device *core, *tmp; |
8369ae33 | 385 | |
1fffa905 | 386 | list_for_each_entry_safe(core, tmp, &bus->cores, list) { |
17fbaa6e RM |
387 | if (!core->dev_registered) |
388 | continue; | |
1fffa905 | 389 | list_del(&core->list); |
17fbaa6e | 390 | device_unregister(&core->dev); |
8369ae33 | 391 | } |
a4855f39 HM |
392 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) |
393 | platform_device_unregister(bus->drv_cc.watchdog); | |
17fbaa6e RM |
394 | |
395 | /* Now noone uses internally-handled cores, we can free them */ | |
396 | list_for_each_entry_safe(core, tmp, &bus->cores, list) { | |
397 | list_del(&core->list); | |
398 | kfree(core); | |
399 | } | |
8369ae33 RM |
400 | } |
401 | ||
0f58a01d | 402 | int bcma_bus_register(struct bcma_bus *bus) |
8369ae33 RM |
403 | { |
404 | int err; | |
405 | struct bcma_device *core; | |
53cd2fdb | 406 | struct device *dev; |
8369ae33 RM |
407 | |
408 | /* Scan for devices (cores) */ | |
409 | err = bcma_bus_scan(bus); | |
410 | if (err) { | |
3d9d8af3 | 411 | bcma_err(bus, "Failed to scan: %d\n", err); |
1cabf7db | 412 | return err; |
8369ae33 RM |
413 | } |
414 | ||
30cfb023 HM |
415 | /* Early init CC core */ |
416 | core = bcma_find_core(bus, bcma_cc_core_id(bus)); | |
417 | if (core) { | |
418 | bus->drv_cc.core = core; | |
419 | bcma_core_chipcommon_early_init(&bus->drv_cc); | |
420 | } | |
b504075f RM |
421 | |
422 | /* Early init PCIE core */ | |
423 | core = bcma_find_core(bus, BCMA_CORE_PCIE); | |
424 | if (core) { | |
425 | bus->drv_pci[0].core = core; | |
426 | bcma_core_pci_early_init(&bus->drv_pci[0]); | |
427 | } | |
cae761b5 | 428 | |
53cd2fdb | 429 | dev = bcma_bus_get_host_dev(bus); |
69b5f4da HM |
430 | if (dev) { |
431 | of_platform_default_populate(dev->of_node, NULL, dev); | |
cae761b5 | 432 | } |
30cfb023 | 433 | |
37a7f876 RM |
434 | /* Cores providing flash access go before SPROM init */ |
435 | list_for_each_entry(core, &bus->cores, list) { | |
436 | if (bcma_is_core_needed_early(core->id.id)) | |
437 | bcma_register_core(bus, core); | |
438 | } | |
439 | ||
30cfb023 HM |
440 | /* Try to get SPROM */ |
441 | err = bcma_sprom_get(bus); | |
442 | if (err == -ENOENT) { | |
443 | bcma_err(bus, "No SPROM available\n"); | |
444 | } else if (err) | |
445 | bcma_err(bus, "Failed to get SPROM: %d\n", err); | |
446 | ||
8369ae33 | 447 | /* Init CC core */ |
6d5cfc9f | 448 | core = bcma_find_core(bus, bcma_cc_core_id(bus)); |
8369ae33 RM |
449 | if (core) { |
450 | bus->drv_cc.core = core; | |
451 | bcma_core_chipcommon_init(&bus->drv_cc); | |
452 | } | |
453 | ||
1716bcf3 HM |
454 | /* Init CC core */ |
455 | core = bcma_find_core(bus, BCMA_CORE_NS_CHIPCOMMON_B); | |
456 | if (core) { | |
457 | bus->drv_cc_b.core = core; | |
458 | bcma_core_chipcommon_b_init(&bus->drv_cc_b); | |
459 | } | |
460 | ||
21e0534a HM |
461 | /* Init MIPS core */ |
462 | core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); | |
463 | if (core) { | |
464 | bus->drv_mips.core = core; | |
465 | bcma_core_mips_init(&bus->drv_mips); | |
466 | } | |
467 | ||
8369ae33 | 468 | /* Init PCIE core */ |
dfae7143 HM |
469 | core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0); |
470 | if (core) { | |
471 | bus->drv_pci[0].core = core; | |
472 | bcma_core_pci_init(&bus->drv_pci[0]); | |
473 | } | |
474 | ||
475 | /* Init PCIE core */ | |
476 | core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1); | |
8369ae33 | 477 | if (core) { |
dfae7143 HM |
478 | bus->drv_pci[1].core = core; |
479 | bcma_core_pci_init(&bus->drv_pci[1]); | |
8369ae33 RM |
480 | } |
481 | ||
f473832f RM |
482 | /* Init PCIe Gen 2 core */ |
483 | core = bcma_find_core_unit(bus, BCMA_CORE_PCIE2, 0); | |
484 | if (core) { | |
485 | bus->drv_pcie2.core = core; | |
486 | bcma_core_pcie2_init(&bus->drv_pcie2); | |
487 | } | |
488 | ||
e1ac4b40 RM |
489 | /* Init GBIT MAC COMMON core */ |
490 | core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON); | |
491 | if (core) { | |
492 | bus->drv_gmac_cmn.core = core; | |
493 | bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn); | |
494 | } | |
495 | ||
8369ae33 | 496 | /* Register found cores */ |
6e094bd8 | 497 | bcma_register_devices(bus); |
8369ae33 | 498 | |
3d9d8af3 | 499 | bcma_info(bus, "Bus registered\n"); |
8369ae33 RM |
500 | |
501 | return 0; | |
502 | } | |
8369ae33 RM |
503 | |
504 | void bcma_bus_unregister(struct bcma_bus *bus) | |
505 | { | |
c50ae947 HM |
506 | int err; |
507 | ||
508 | err = bcma_gpio_unregister(&bus->drv_cc); | |
509 | if (err == -EBUSY) | |
510 | bcma_err(bus, "Some GPIOs are still in use.\n"); | |
511 | else if (err) | |
512 | bcma_err(bus, "Can not unregister GPIO driver: %i\n", err); | |
ee915927 | 513 | |
1716bcf3 HM |
514 | bcma_core_chipcommon_b_free(&bus->drv_cc_b); |
515 | ||
8369ae33 RM |
516 | bcma_unregister_cores(bus); |
517 | } | |
8369ae33 | 518 | |
c5ed1df7 RM |
519 | /* |
520 | * This is a special version of bus registration function designed for SoCs. | |
521 | * It scans bus and performs basic initialization of main cores only. | |
522 | * Please note it requires memory allocation, however it won't try to sleep. | |
523 | */ | |
524 | int __init bcma_bus_early_register(struct bcma_bus *bus) | |
517f43e5 HM |
525 | { |
526 | int err; | |
527 | struct bcma_device *core; | |
517f43e5 | 528 | |
c5ed1df7 RM |
529 | /* Scan for devices (cores) */ |
530 | err = bcma_bus_scan(bus); | |
517f43e5 | 531 | if (err) { |
c5ed1df7 | 532 | bcma_err(bus, "Failed to scan bus: %d\n", err); |
517f43e5 HM |
533 | return -1; |
534 | } | |
535 | ||
49655bb8 | 536 | /* Early init CC core */ |
6d5cfc9f | 537 | core = bcma_find_core(bus, bcma_cc_core_id(bus)); |
517f43e5 HM |
538 | if (core) { |
539 | bus->drv_cc.core = core; | |
49655bb8 | 540 | bcma_core_chipcommon_early_init(&bus->drv_cc); |
517f43e5 HM |
541 | } |
542 | ||
49655bb8 | 543 | /* Early init MIPS core */ |
21e0534a HM |
544 | core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); |
545 | if (core) { | |
546 | bus->drv_mips.core = core; | |
49655bb8 | 547 | bcma_core_mips_early_init(&bus->drv_mips); |
21e0534a HM |
548 | } |
549 | ||
3d9d8af3 | 550 | bcma_info(bus, "Early bus registered\n"); |
517f43e5 HM |
551 | |
552 | return 0; | |
553 | } | |
554 | ||
775ab521 | 555 | #ifdef CONFIG_PM |
685a4ef0 LT |
556 | int bcma_bus_suspend(struct bcma_bus *bus) |
557 | { | |
7d5869e7 LT |
558 | struct bcma_device *core; |
559 | ||
560 | list_for_each_entry(core, &bus->cores, list) { | |
561 | struct device_driver *drv = core->dev.driver; | |
562 | if (drv) { | |
563 | struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); | |
564 | if (adrv->suspend) | |
565 | adrv->suspend(core); | |
566 | } | |
567 | } | |
685a4ef0 LT |
568 | return 0; |
569 | } | |
570 | ||
775ab521 RM |
571 | int bcma_bus_resume(struct bcma_bus *bus) |
572 | { | |
573 | struct bcma_device *core; | |
574 | ||
575 | /* Init CC core */ | |
6d5cfc9f | 576 | if (bus->drv_cc.core) { |
775ab521 RM |
577 | bus->drv_cc.setup_done = false; |
578 | bcma_core_chipcommon_init(&bus->drv_cc); | |
579 | } | |
580 | ||
7d5869e7 LT |
581 | list_for_each_entry(core, &bus->cores, list) { |
582 | struct device_driver *drv = core->dev.driver; | |
583 | if (drv) { | |
584 | struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); | |
585 | if (adrv->resume) | |
586 | adrv->resume(core); | |
587 | } | |
588 | } | |
589 | ||
775ab521 RM |
590 | return 0; |
591 | } | |
592 | #endif | |
593 | ||
8369ae33 RM |
594 | int __bcma_driver_register(struct bcma_driver *drv, struct module *owner) |
595 | { | |
596 | drv->drv.name = drv->name; | |
597 | drv->drv.bus = &bcma_bus_type; | |
598 | drv->drv.owner = owner; | |
599 | ||
600 | return driver_register(&drv->drv); | |
601 | } | |
602 | EXPORT_SYMBOL_GPL(__bcma_driver_register); | |
603 | ||
604 | void bcma_driver_unregister(struct bcma_driver *drv) | |
605 | { | |
606 | driver_unregister(&drv->drv); | |
607 | } | |
608 | EXPORT_SYMBOL_GPL(bcma_driver_unregister); | |
609 | ||
610 | static int bcma_bus_match(struct device *dev, struct device_driver *drv) | |
611 | { | |
612 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
613 | struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); | |
614 | const struct bcma_device_id *cid = &core->id; | |
615 | const struct bcma_device_id *did; | |
616 | ||
617 | for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) { | |
618 | if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) && | |
619 | (did->id == cid->id || did->id == BCMA_ANY_ID) && | |
620 | (did->rev == cid->rev || did->rev == BCMA_ANY_REV) && | |
621 | (did->class == cid->class || did->class == BCMA_ANY_CLASS)) | |
622 | return 1; | |
623 | } | |
624 | return 0; | |
625 | } | |
626 | ||
627 | static int bcma_device_probe(struct device *dev) | |
628 | { | |
629 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
630 | struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver, | |
631 | drv); | |
632 | int err = 0; | |
633 | ||
634 | if (adrv->probe) | |
635 | err = adrv->probe(core); | |
636 | ||
637 | return err; | |
638 | } | |
639 | ||
640 | static int bcma_device_remove(struct device *dev) | |
641 | { | |
642 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
643 | struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver, | |
644 | drv); | |
645 | ||
646 | if (adrv->remove) | |
647 | adrv->remove(core); | |
648 | ||
649 | return 0; | |
650 | } | |
651 | ||
886b66ef DW |
652 | static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env) |
653 | { | |
654 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
655 | ||
656 | return add_uevent_var(env, | |
657 | "MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X", | |
658 | core->id.manuf, core->id.id, | |
659 | core->id.rev, core->id.class); | |
660 | } | |
661 | ||
0510931e RM |
662 | static unsigned int bcma_bus_registered; |
663 | ||
664 | /* | |
665 | * If built-in, bus has to be registered early, before any driver calls | |
666 | * bcma_driver_register. | |
667 | * Otherwise registering driver would trigger BUG in driver_register. | |
668 | */ | |
669 | static int __init bcma_init_bus_register(void) | |
8369ae33 RM |
670 | { |
671 | int err; | |
672 | ||
0510931e RM |
673 | if (bcma_bus_registered) |
674 | return 0; | |
675 | ||
8369ae33 | 676 | err = bus_register(&bcma_bus_type); |
0510931e RM |
677 | if (!err) |
678 | bcma_bus_registered = 1; | |
679 | ||
680 | return err; | |
681 | } | |
682 | #ifndef MODULE | |
683 | fs_initcall(bcma_init_bus_register); | |
684 | #endif | |
685 | ||
686 | /* Main initialization has to be done with SPI/mtd/NAND/SPROM available */ | |
687 | static int __init bcma_modinit(void) | |
688 | { | |
689 | int err; | |
690 | ||
691 | err = bcma_init_bus_register(); | |
8369ae33 RM |
692 | if (err) |
693 | return err; | |
694 | ||
2101e533 HM |
695 | err = bcma_host_soc_register_driver(); |
696 | if (err) { | |
697 | pr_err("SoC host initialization failed\n"); | |
698 | err = 0; | |
699 | } | |
8369ae33 RM |
700 | #ifdef CONFIG_BCMA_HOST_PCI |
701 | err = bcma_host_pci_init(); | |
702 | if (err) { | |
703 | pr_err("PCI host initialization failed\n"); | |
704 | err = 0; | |
705 | } | |
706 | #endif | |
707 | ||
708 | return err; | |
709 | } | |
0510931e | 710 | module_init(bcma_modinit); |
8369ae33 RM |
711 | |
712 | static void __exit bcma_modexit(void) | |
713 | { | |
714 | #ifdef CONFIG_BCMA_HOST_PCI | |
715 | bcma_host_pci_exit(); | |
716 | #endif | |
2101e533 | 717 | bcma_host_soc_unregister_driver(); |
8369ae33 RM |
718 | bus_unregister(&bcma_bus_type); |
719 | } | |
720 | module_exit(bcma_modexit) |