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Commit | Line | Data |
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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 | ||
78afe83c | 139 | #if defined(CONFIG_OF) && defined(CONFIG_OF_ADDRESS) |
2101e533 HM |
140 | static struct device_node *bcma_of_find_child_device(struct platform_device *parent, |
141 | struct bcma_device *core) | |
142 | { | |
143 | struct device_node *node; | |
144 | u64 size; | |
145 | const __be32 *reg; | |
146 | ||
147 | if (!parent || !parent->dev.of_node) | |
148 | return NULL; | |
149 | ||
150 | for_each_child_of_node(parent->dev.of_node, node) { | |
151 | reg = of_get_address(node, 0, &size, NULL); | |
152 | if (!reg) | |
153 | continue; | |
154 | if (of_translate_address(node, reg) == core->addr) | |
155 | return node; | |
156 | } | |
157 | return NULL; | |
158 | } | |
159 | ||
71783576 HM |
160 | static int bcma_of_irq_parse(struct platform_device *parent, |
161 | struct bcma_device *core, | |
162 | struct of_phandle_args *out_irq, int num) | |
163 | { | |
164 | __be32 laddr[1]; | |
165 | int rc; | |
166 | ||
167 | if (core->dev.of_node) { | |
168 | rc = of_irq_parse_one(core->dev.of_node, num, out_irq); | |
169 | if (!rc) | |
170 | return rc; | |
171 | } | |
172 | ||
173 | out_irq->np = parent->dev.of_node; | |
174 | out_irq->args_count = 1; | |
175 | out_irq->args[0] = num; | |
176 | ||
177 | laddr[0] = cpu_to_be32(core->addr); | |
178 | return of_irq_parse_raw(laddr, out_irq); | |
179 | } | |
180 | ||
181 | static unsigned int bcma_of_get_irq(struct platform_device *parent, | |
182 | struct bcma_device *core, int num) | |
183 | { | |
184 | struct of_phandle_args out_irq; | |
185 | int ret; | |
186 | ||
187 | if (!parent || !parent->dev.of_node) | |
188 | return 0; | |
189 | ||
190 | ret = bcma_of_irq_parse(parent, core, &out_irq, num); | |
191 | if (ret) { | |
192 | bcma_debug(core->bus, "bcma_of_get_irq() failed with rc=%d\n", | |
193 | ret); | |
194 | return 0; | |
195 | } | |
196 | ||
197 | return irq_create_of_mapping(&out_irq); | |
198 | } | |
199 | ||
2101e533 HM |
200 | static void bcma_of_fill_device(struct platform_device *parent, |
201 | struct bcma_device *core) | |
202 | { | |
203 | struct device_node *node; | |
204 | ||
205 | node = bcma_of_find_child_device(parent, core); | |
206 | if (node) | |
207 | core->dev.of_node = node; | |
71783576 HM |
208 | |
209 | core->irq = bcma_of_get_irq(parent, core, 0); | |
2101e533 HM |
210 | } |
211 | #else | |
212 | static void bcma_of_fill_device(struct platform_device *parent, | |
213 | struct bcma_device *core) | |
214 | { | |
215 | } | |
71783576 HM |
216 | static inline unsigned int bcma_of_get_irq(struct platform_device *parent, |
217 | struct bcma_device *core, int num) | |
218 | { | |
219 | return 0; | |
220 | } | |
2101e533 HM |
221 | #endif /* CONFIG_OF */ |
222 | ||
85eb92e8 HM |
223 | unsigned int bcma_core_irq(struct bcma_device *core, int num) |
224 | { | |
225 | struct bcma_bus *bus = core->bus; | |
226 | unsigned int mips_irq; | |
227 | ||
228 | switch (bus->hosttype) { | |
229 | case BCMA_HOSTTYPE_PCI: | |
230 | return bus->host_pci->irq; | |
231 | case BCMA_HOSTTYPE_SOC: | |
232 | if (bus->drv_mips.core && num == 0) { | |
233 | mips_irq = bcma_core_mips_irq(core); | |
234 | return mips_irq <= 4 ? mips_irq + 2 : 0; | |
235 | } | |
71783576 HM |
236 | if (bus->host_pdev) |
237 | return bcma_of_get_irq(bus->host_pdev, core, num); | |
238 | return 0; | |
85eb92e8 HM |
239 | case BCMA_HOSTTYPE_SDIO: |
240 | return 0; | |
241 | } | |
242 | ||
243 | return 0; | |
244 | } | |
245 | EXPORT_SYMBOL(bcma_core_irq); | |
246 | ||
ab54bc84 | 247 | void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core) |
6e094bd8 | 248 | { |
6e094bd8 RM |
249 | core->dev.release = bcma_release_core_dev; |
250 | core->dev.bus = &bcma_bus_type; | |
251 | dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index); | |
252 | ||
253 | switch (bus->hosttype) { | |
254 | case BCMA_HOSTTYPE_PCI: | |
255 | core->dev.parent = &bus->host_pci->dev; | |
256 | core->dma_dev = &bus->host_pci->dev; | |
257 | core->irq = bus->host_pci->irq; | |
258 | break; | |
259 | case BCMA_HOSTTYPE_SOC: | |
260 | core->dev.dma_mask = &core->dev.coherent_dma_mask; | |
2101e533 HM |
261 | if (bus->host_pdev) { |
262 | core->dma_dev = &bus->host_pdev->dev; | |
263 | core->dev.parent = &bus->host_pdev->dev; | |
264 | bcma_of_fill_device(bus->host_pdev, core); | |
265 | } else { | |
266 | core->dma_dev = &core->dev; | |
267 | } | |
6e094bd8 RM |
268 | break; |
269 | case BCMA_HOSTTYPE_SDIO: | |
270 | break; | |
271 | } | |
ab54bc84 RM |
272 | } |
273 | ||
53cd2fdb HM |
274 | struct device *bcma_bus_get_host_dev(struct bcma_bus *bus) |
275 | { | |
276 | switch (bus->hosttype) { | |
277 | case BCMA_HOSTTYPE_PCI: | |
278 | if (bus->host_pci) | |
279 | return &bus->host_pci->dev; | |
280 | else | |
281 | return NULL; | |
282 | case BCMA_HOSTTYPE_SOC: | |
283 | if (bus->host_pdev) | |
284 | return &bus->host_pdev->dev; | |
285 | else | |
286 | return NULL; | |
287 | case BCMA_HOSTTYPE_SDIO: | |
288 | if (bus->host_sdio) | |
289 | return &bus->host_sdio->dev; | |
290 | else | |
291 | return NULL; | |
292 | } | |
293 | return NULL; | |
294 | } | |
295 | ||
799038ea RM |
296 | void bcma_init_bus(struct bcma_bus *bus) |
297 | { | |
298 | mutex_lock(&bcma_buses_mutex); | |
299 | bus->num = bcma_bus_next_num++; | |
300 | mutex_unlock(&bcma_buses_mutex); | |
301 | ||
302 | INIT_LIST_HEAD(&bus->cores); | |
303 | bus->nr_cores = 0; | |
304 | ||
305 | bcma_detect_chip(bus); | |
306 | } | |
307 | ||
ab54bc84 RM |
308 | static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core) |
309 | { | |
310 | int err; | |
6e094bd8 RM |
311 | |
312 | err = device_register(&core->dev); | |
313 | if (err) { | |
314 | bcma_err(bus, "Could not register dev for core 0x%03X\n", | |
315 | core->id.id); | |
316 | put_device(&core->dev); | |
317 | return; | |
318 | } | |
319 | core->dev_registered = true; | |
320 | } | |
321 | ||
322 | static int bcma_register_devices(struct bcma_bus *bus) | |
8369ae33 RM |
323 | { |
324 | struct bcma_device *core; | |
6e094bd8 | 325 | int err; |
8369ae33 RM |
326 | |
327 | list_for_each_entry(core, &bus->cores, list) { | |
328 | /* We support that cores ourself */ | |
329 | switch (core->id.id) { | |
6d5cfc9f | 330 | case BCMA_CORE_4706_CHIPCOMMON: |
8369ae33 | 331 | case BCMA_CORE_CHIPCOMMON: |
1716bcf3 | 332 | case BCMA_CORE_NS_CHIPCOMMON_B: |
8369ae33 RM |
333 | case BCMA_CORE_PCI: |
334 | case BCMA_CORE_PCIE: | |
f473832f | 335 | case BCMA_CORE_PCIE2: |
21e0534a | 336 | case BCMA_CORE_MIPS_74K: |
e1ac4b40 | 337 | case BCMA_CORE_4706_MAC_GBIT_COMMON: |
8369ae33 RM |
338 | continue; |
339 | } | |
340 | ||
37a7f876 RM |
341 | /* Early cores were already registered */ |
342 | if (bcma_is_core_needed_early(core->id.id)) | |
343 | continue; | |
344 | ||
10419d08 RM |
345 | /* Only first GMAC core on BCM4706 is connected and working */ |
346 | if (core->id.id == BCMA_CORE_4706_MAC_GBIT && | |
347 | core->core_unit > 0) | |
348 | continue; | |
349 | ||
6e094bd8 | 350 | bcma_register_core(bus, core); |
8369ae33 RM |
351 | } |
352 | ||
73e4dbe4 RM |
353 | #ifdef CONFIG_BCMA_DRIVER_MIPS |
354 | if (bus->drv_cc.pflash.present) { | |
355 | err = platform_device_register(&bcma_pflash_dev); | |
356 | if (err) | |
357 | bcma_err(bus, "Error registering parallel flash\n"); | |
358 | } | |
359 | #endif | |
360 | ||
d57ef3a6 RM |
361 | #ifdef CONFIG_BCMA_SFLASH |
362 | if (bus->drv_cc.sflash.present) { | |
363 | err = platform_device_register(&bcma_sflash_dev); | |
364 | if (err) | |
365 | bcma_err(bus, "Error registering serial flash\n"); | |
366 | } | |
367 | #endif | |
368 | ||
371a0044 RM |
369 | #ifdef CONFIG_BCMA_NFLASH |
370 | if (bus->drv_cc.nflash.present) { | |
371 | err = platform_device_register(&bcma_nflash_dev); | |
372 | if (err) | |
373 | bcma_err(bus, "Error registering NAND flash\n"); | |
374 | } | |
375 | #endif | |
cf0936b0 HM |
376 | err = bcma_gpio_init(&bus->drv_cc); |
377 | if (err == -ENOTSUPP) | |
378 | bcma_debug(bus, "GPIO driver not activated\n"); | |
379 | else if (err) | |
380 | bcma_err(bus, "Error registering GPIO driver: %i\n", err); | |
371a0044 | 381 | |
a4855f39 HM |
382 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) { |
383 | err = bcma_chipco_watchdog_register(&bus->drv_cc); | |
384 | if (err) | |
385 | bcma_err(bus, "Error registering watchdog driver\n"); | |
386 | } | |
387 | ||
8369ae33 RM |
388 | return 0; |
389 | } | |
390 | ||
9b6cc9a8 | 391 | void bcma_unregister_cores(struct bcma_bus *bus) |
8369ae33 | 392 | { |
1fffa905 | 393 | struct bcma_device *core, *tmp; |
8369ae33 | 394 | |
1fffa905 | 395 | list_for_each_entry_safe(core, tmp, &bus->cores, list) { |
17fbaa6e RM |
396 | if (!core->dev_registered) |
397 | continue; | |
1fffa905 | 398 | list_del(&core->list); |
17fbaa6e | 399 | device_unregister(&core->dev); |
8369ae33 | 400 | } |
a4855f39 HM |
401 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) |
402 | platform_device_unregister(bus->drv_cc.watchdog); | |
17fbaa6e RM |
403 | |
404 | /* Now noone uses internally-handled cores, we can free them */ | |
405 | list_for_each_entry_safe(core, tmp, &bus->cores, list) { | |
406 | list_del(&core->list); | |
407 | kfree(core); | |
408 | } | |
8369ae33 RM |
409 | } |
410 | ||
0f58a01d | 411 | int bcma_bus_register(struct bcma_bus *bus) |
8369ae33 RM |
412 | { |
413 | int err; | |
414 | struct bcma_device *core; | |
53cd2fdb | 415 | struct device *dev; |
8369ae33 RM |
416 | |
417 | /* Scan for devices (cores) */ | |
418 | err = bcma_bus_scan(bus); | |
419 | if (err) { | |
3d9d8af3 | 420 | bcma_err(bus, "Failed to scan: %d\n", err); |
1cabf7db | 421 | return err; |
8369ae33 RM |
422 | } |
423 | ||
30cfb023 HM |
424 | /* Early init CC core */ |
425 | core = bcma_find_core(bus, bcma_cc_core_id(bus)); | |
426 | if (core) { | |
427 | bus->drv_cc.core = core; | |
428 | bcma_core_chipcommon_early_init(&bus->drv_cc); | |
429 | } | |
b504075f RM |
430 | |
431 | /* Early init PCIE core */ | |
432 | core = bcma_find_core(bus, BCMA_CORE_PCIE); | |
433 | if (core) { | |
434 | bus->drv_pci[0].core = core; | |
435 | bcma_core_pci_early_init(&bus->drv_pci[0]); | |
436 | } | |
cae761b5 | 437 | |
53cd2fdb | 438 | dev = bcma_bus_get_host_dev(bus); |
92ff7a69 HM |
439 | /* TODO: remove check for IS_BUILTIN(CONFIG_BCMA) check when |
440 | * of_default_bus_match_table is exported or in some other way | |
441 | * accessible. This is just a temporary workaround. | |
442 | */ | |
53cd2fdb | 443 | if (IS_BUILTIN(CONFIG_BCMA) && dev) { |
cae761b5 RM |
444 | of_platform_populate(dev->of_node, of_default_bus_match_table, |
445 | NULL, dev); | |
446 | } | |
30cfb023 | 447 | |
37a7f876 RM |
448 | /* Cores providing flash access go before SPROM init */ |
449 | list_for_each_entry(core, &bus->cores, list) { | |
450 | if (bcma_is_core_needed_early(core->id.id)) | |
451 | bcma_register_core(bus, core); | |
452 | } | |
453 | ||
30cfb023 HM |
454 | /* Try to get SPROM */ |
455 | err = bcma_sprom_get(bus); | |
456 | if (err == -ENOENT) { | |
457 | bcma_err(bus, "No SPROM available\n"); | |
458 | } else if (err) | |
459 | bcma_err(bus, "Failed to get SPROM: %d\n", err); | |
460 | ||
8369ae33 | 461 | /* Init CC core */ |
6d5cfc9f | 462 | core = bcma_find_core(bus, bcma_cc_core_id(bus)); |
8369ae33 RM |
463 | if (core) { |
464 | bus->drv_cc.core = core; | |
465 | bcma_core_chipcommon_init(&bus->drv_cc); | |
466 | } | |
467 | ||
1716bcf3 HM |
468 | /* Init CC core */ |
469 | core = bcma_find_core(bus, BCMA_CORE_NS_CHIPCOMMON_B); | |
470 | if (core) { | |
471 | bus->drv_cc_b.core = core; | |
472 | bcma_core_chipcommon_b_init(&bus->drv_cc_b); | |
473 | } | |
474 | ||
21e0534a HM |
475 | /* Init MIPS core */ |
476 | core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); | |
477 | if (core) { | |
478 | bus->drv_mips.core = core; | |
479 | bcma_core_mips_init(&bus->drv_mips); | |
480 | } | |
481 | ||
8369ae33 | 482 | /* Init PCIE core */ |
dfae7143 HM |
483 | core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0); |
484 | if (core) { | |
485 | bus->drv_pci[0].core = core; | |
486 | bcma_core_pci_init(&bus->drv_pci[0]); | |
487 | } | |
488 | ||
489 | /* Init PCIE core */ | |
490 | core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1); | |
8369ae33 | 491 | if (core) { |
dfae7143 HM |
492 | bus->drv_pci[1].core = core; |
493 | bcma_core_pci_init(&bus->drv_pci[1]); | |
8369ae33 RM |
494 | } |
495 | ||
f473832f RM |
496 | /* Init PCIe Gen 2 core */ |
497 | core = bcma_find_core_unit(bus, BCMA_CORE_PCIE2, 0); | |
498 | if (core) { | |
499 | bus->drv_pcie2.core = core; | |
500 | bcma_core_pcie2_init(&bus->drv_pcie2); | |
501 | } | |
502 | ||
e1ac4b40 RM |
503 | /* Init GBIT MAC COMMON core */ |
504 | core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON); | |
505 | if (core) { | |
506 | bus->drv_gmac_cmn.core = core; | |
507 | bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn); | |
508 | } | |
509 | ||
8369ae33 | 510 | /* Register found cores */ |
6e094bd8 | 511 | bcma_register_devices(bus); |
8369ae33 | 512 | |
3d9d8af3 | 513 | bcma_info(bus, "Bus registered\n"); |
8369ae33 RM |
514 | |
515 | return 0; | |
516 | } | |
8369ae33 RM |
517 | |
518 | void bcma_bus_unregister(struct bcma_bus *bus) | |
519 | { | |
c50ae947 HM |
520 | int err; |
521 | ||
522 | err = bcma_gpio_unregister(&bus->drv_cc); | |
523 | if (err == -EBUSY) | |
524 | bcma_err(bus, "Some GPIOs are still in use.\n"); | |
525 | else if (err) | |
526 | bcma_err(bus, "Can not unregister GPIO driver: %i\n", err); | |
ee915927 | 527 | |
1716bcf3 HM |
528 | bcma_core_chipcommon_b_free(&bus->drv_cc_b); |
529 | ||
8369ae33 RM |
530 | bcma_unregister_cores(bus); |
531 | } | |
8369ae33 | 532 | |
c5ed1df7 RM |
533 | /* |
534 | * This is a special version of bus registration function designed for SoCs. | |
535 | * It scans bus and performs basic initialization of main cores only. | |
536 | * Please note it requires memory allocation, however it won't try to sleep. | |
537 | */ | |
538 | int __init bcma_bus_early_register(struct bcma_bus *bus) | |
517f43e5 HM |
539 | { |
540 | int err; | |
541 | struct bcma_device *core; | |
517f43e5 | 542 | |
c5ed1df7 RM |
543 | /* Scan for devices (cores) */ |
544 | err = bcma_bus_scan(bus); | |
517f43e5 | 545 | if (err) { |
c5ed1df7 | 546 | bcma_err(bus, "Failed to scan bus: %d\n", err); |
517f43e5 HM |
547 | return -1; |
548 | } | |
549 | ||
49655bb8 | 550 | /* Early init CC core */ |
6d5cfc9f | 551 | core = bcma_find_core(bus, bcma_cc_core_id(bus)); |
517f43e5 HM |
552 | if (core) { |
553 | bus->drv_cc.core = core; | |
49655bb8 | 554 | bcma_core_chipcommon_early_init(&bus->drv_cc); |
517f43e5 HM |
555 | } |
556 | ||
49655bb8 | 557 | /* Early init MIPS core */ |
21e0534a HM |
558 | core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); |
559 | if (core) { | |
560 | bus->drv_mips.core = core; | |
49655bb8 | 561 | bcma_core_mips_early_init(&bus->drv_mips); |
21e0534a HM |
562 | } |
563 | ||
3d9d8af3 | 564 | bcma_info(bus, "Early bus registered\n"); |
517f43e5 HM |
565 | |
566 | return 0; | |
567 | } | |
568 | ||
775ab521 | 569 | #ifdef CONFIG_PM |
685a4ef0 LT |
570 | int bcma_bus_suspend(struct bcma_bus *bus) |
571 | { | |
7d5869e7 LT |
572 | struct bcma_device *core; |
573 | ||
574 | list_for_each_entry(core, &bus->cores, list) { | |
575 | struct device_driver *drv = core->dev.driver; | |
576 | if (drv) { | |
577 | struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); | |
578 | if (adrv->suspend) | |
579 | adrv->suspend(core); | |
580 | } | |
581 | } | |
685a4ef0 LT |
582 | return 0; |
583 | } | |
584 | ||
775ab521 RM |
585 | int bcma_bus_resume(struct bcma_bus *bus) |
586 | { | |
587 | struct bcma_device *core; | |
588 | ||
589 | /* Init CC core */ | |
6d5cfc9f | 590 | if (bus->drv_cc.core) { |
775ab521 RM |
591 | bus->drv_cc.setup_done = false; |
592 | bcma_core_chipcommon_init(&bus->drv_cc); | |
593 | } | |
594 | ||
7d5869e7 LT |
595 | list_for_each_entry(core, &bus->cores, list) { |
596 | struct device_driver *drv = core->dev.driver; | |
597 | if (drv) { | |
598 | struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); | |
599 | if (adrv->resume) | |
600 | adrv->resume(core); | |
601 | } | |
602 | } | |
603 | ||
775ab521 RM |
604 | return 0; |
605 | } | |
606 | #endif | |
607 | ||
8369ae33 RM |
608 | int __bcma_driver_register(struct bcma_driver *drv, struct module *owner) |
609 | { | |
610 | drv->drv.name = drv->name; | |
611 | drv->drv.bus = &bcma_bus_type; | |
612 | drv->drv.owner = owner; | |
613 | ||
614 | return driver_register(&drv->drv); | |
615 | } | |
616 | EXPORT_SYMBOL_GPL(__bcma_driver_register); | |
617 | ||
618 | void bcma_driver_unregister(struct bcma_driver *drv) | |
619 | { | |
620 | driver_unregister(&drv->drv); | |
621 | } | |
622 | EXPORT_SYMBOL_GPL(bcma_driver_unregister); | |
623 | ||
624 | static int bcma_bus_match(struct device *dev, struct device_driver *drv) | |
625 | { | |
626 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
627 | struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); | |
628 | const struct bcma_device_id *cid = &core->id; | |
629 | const struct bcma_device_id *did; | |
630 | ||
631 | for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) { | |
632 | if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) && | |
633 | (did->id == cid->id || did->id == BCMA_ANY_ID) && | |
634 | (did->rev == cid->rev || did->rev == BCMA_ANY_REV) && | |
635 | (did->class == cid->class || did->class == BCMA_ANY_CLASS)) | |
636 | return 1; | |
637 | } | |
638 | return 0; | |
639 | } | |
640 | ||
641 | static int bcma_device_probe(struct device *dev) | |
642 | { | |
643 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
644 | struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver, | |
645 | drv); | |
646 | int err = 0; | |
647 | ||
648 | if (adrv->probe) | |
649 | err = adrv->probe(core); | |
650 | ||
651 | return err; | |
652 | } | |
653 | ||
654 | static int bcma_device_remove(struct device *dev) | |
655 | { | |
656 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
657 | struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver, | |
658 | drv); | |
659 | ||
660 | if (adrv->remove) | |
661 | adrv->remove(core); | |
662 | ||
663 | return 0; | |
664 | } | |
665 | ||
886b66ef DW |
666 | static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env) |
667 | { | |
668 | struct bcma_device *core = container_of(dev, struct bcma_device, dev); | |
669 | ||
670 | return add_uevent_var(env, | |
671 | "MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X", | |
672 | core->id.manuf, core->id.id, | |
673 | core->id.rev, core->id.class); | |
674 | } | |
675 | ||
8369ae33 RM |
676 | static int __init bcma_modinit(void) |
677 | { | |
678 | int err; | |
679 | ||
680 | err = bus_register(&bcma_bus_type); | |
681 | if (err) | |
682 | return err; | |
683 | ||
2101e533 HM |
684 | err = bcma_host_soc_register_driver(); |
685 | if (err) { | |
686 | pr_err("SoC host initialization failed\n"); | |
687 | err = 0; | |
688 | } | |
8369ae33 RM |
689 | #ifdef CONFIG_BCMA_HOST_PCI |
690 | err = bcma_host_pci_init(); | |
691 | if (err) { | |
692 | pr_err("PCI host initialization failed\n"); | |
693 | err = 0; | |
694 | } | |
695 | #endif | |
696 | ||
697 | return err; | |
698 | } | |
699 | fs_initcall(bcma_modinit); | |
700 | ||
701 | static void __exit bcma_modexit(void) | |
702 | { | |
703 | #ifdef CONFIG_BCMA_HOST_PCI | |
704 | bcma_host_pci_exit(); | |
705 | #endif | |
2101e533 | 706 | bcma_host_soc_unregister_driver(); |
8369ae33 RM |
707 | bus_unregister(&bcma_bus_type); |
708 | } | |
709 | module_exit(bcma_modexit) |