Lines Matching +full:bus +full:- +full:id
3 * Bus scanning
15 #include <linux/dma-mapping.h>
19 u16 id; member
78 { BCMA_CORE_SATA_XORDMA, "SATA XOR-DMA" },
113 static const char *bcma_device_name(const struct bcma_device_id *id) in bcma_device_name() argument
119 switch (id->manuf) { in bcma_device_name()
137 if (names[i].id == id->id) in bcma_device_name()
144 static u32 bcma_scan_read32(struct bcma_bus *bus, u16 offset) in bcma_scan_read32() argument
146 return readl(bus->mmio + offset); in bcma_scan_read32()
149 static void bcma_scan_switch_core(struct bcma_bus *bus, u32 addr) in bcma_scan_switch_core() argument
151 if (bus->hosttype == BCMA_HOSTTYPE_PCI) in bcma_scan_switch_core()
152 pci_write_config_dword(bus->host_pci, BCMA_PCI_BAR0_WIN, in bcma_scan_switch_core()
156 static u32 bcma_erom_get_ent(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_get_ent() argument
165 (*eromptr)--; in bcma_erom_push_ent()
168 static s32 bcma_erom_get_ci(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_get_ci() argument
170 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_ci()
172 return -ENOENT; in bcma_erom_get_ci()
174 return -ENOENT; in bcma_erom_get_ci()
178 static bool bcma_erom_is_end(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_is_end() argument
180 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_is_end()
185 static bool bcma_erom_is_bridge(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_is_bridge() argument
187 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_is_bridge()
194 static void bcma_erom_skip_component(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_skip_component() argument
198 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_skip_component()
208 static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_get_mst_port() argument
210 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_mst_port()
212 return -ENOENT; in bcma_erom_get_mst_port()
214 return -ENOENT; in bcma_erom_get_mst_port()
218 static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr, in bcma_erom_get_addr_desc() argument
224 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
230 return (u32)-EINVAL; in bcma_erom_get_addr_desc()
235 bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
238 size = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
240 bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
246 static struct bcma_device *bcma_find_core_by_index(struct bcma_bus *bus, in bcma_find_core_by_index() argument
251 list_for_each_entry(core, &bus->cores, list) { in bcma_find_core_by_index()
252 if (core->core_index == index) in bcma_find_core_by_index()
258 static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid) in bcma_find_core_reverse() argument
262 list_for_each_entry_reverse(core, &bus->cores, list) { in bcma_find_core_reverse()
263 if (core->id.id == coreid) in bcma_find_core_reverse()
269 #define IS_ERR_VALUE_U32(x) ((x) >= (u32)-MAX_ERRNO)
271 static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, in bcma_get_next_core() argument
281 cia = bcma_erom_get_ci(bus, eromptr); in bcma_get_next_core()
284 if (bcma_erom_is_end(bus, eromptr)) in bcma_get_next_core()
285 return -ESPIPE; in bcma_get_next_core()
286 return -EILSEQ; in bcma_get_next_core()
288 cib = bcma_erom_get_ci(bus, eromptr); in bcma_get_next_core()
290 return -EILSEQ; in bcma_get_next_core()
293 core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT; in bcma_get_next_core()
294 core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT; in bcma_get_next_core()
295 core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT; in bcma_get_next_core()
300 core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT; in bcma_get_next_core()
302 if (((core->id.manuf == BCMA_MANUF_ARM) && in bcma_get_next_core()
303 (core->id.id == 0xFFF)) || in bcma_get_next_core()
305 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
306 return -ENXIO; in bcma_get_next_core()
312 switch (core->id.id) { in bcma_get_next_core()
320 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
321 return -ENXIO; in bcma_get_next_core()
325 if (bcma_erom_is_bridge(bus, eromptr)) { in bcma_get_next_core()
326 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
327 return -ENXIO; in bcma_get_next_core()
330 if (bcma_find_core_by_index(bus, core_num)) { in bcma_get_next_core()
331 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
332 return -ENODEV; in bcma_get_next_core()
335 if (match && ((match->manuf != BCMA_ANY_MANUF && in bcma_get_next_core()
336 match->manuf != core->id.manuf) || in bcma_get_next_core()
337 (match->id != BCMA_ANY_ID && match->id != core->id.id) || in bcma_get_next_core()
338 (match->rev != BCMA_ANY_REV && match->rev != core->id.rev) || in bcma_get_next_core()
339 (match->class != BCMA_ANY_CLASS && match->class != core->id.class) in bcma_get_next_core()
341 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
342 return -ENODEV; in bcma_get_next_core()
347 s32 mst_port_d = bcma_erom_get_mst_port(bus, eromptr); in bcma_get_next_core()
349 return -EILSEQ; in bcma_get_next_core()
355 tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, 0); in bcma_get_next_core()
358 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
361 return -EILSEQ; in bcma_get_next_core()
363 bcma_info(bus, "Bridge found\n"); in bcma_get_next_core()
364 return -ENXIO; in bcma_get_next_core()
367 core->addr = tmp; in bcma_get_next_core()
373 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
380 } else if (k < ARRAY_SIZE(core->addr_s)) { in bcma_get_next_core()
381 core->addr_s[k] = tmp; in bcma_get_next_core()
390 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
399 core->wrap = tmp; in bcma_get_next_core()
408 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
417 core->wrap = tmp; in bcma_get_next_core()
421 if (bus->hosttype == BCMA_HOSTTYPE_SOC) { in bcma_get_next_core()
422 core->io_addr = ioremap(core->addr, BCMA_CORE_SIZE); in bcma_get_next_core()
423 if (!core->io_addr) in bcma_get_next_core()
424 return -ENOMEM; in bcma_get_next_core()
425 if (core->wrap) { in bcma_get_next_core()
426 core->io_wrap = ioremap(core->wrap, in bcma_get_next_core()
428 if (!core->io_wrap) { in bcma_get_next_core()
429 iounmap(core->io_addr); in bcma_get_next_core()
430 return -ENOMEM; in bcma_get_next_core()
437 void bcma_detect_chip(struct bcma_bus *bus) in bcma_detect_chip() argument
440 struct bcma_chipinfo *chipinfo = &(bus->chipinfo); in bcma_detect_chip()
443 bcma_scan_switch_core(bus, BCMA_ADDR_BASE); in bcma_detect_chip()
445 tmp = bcma_scan_read32(bus, BCMA_CC_ID); in bcma_detect_chip()
446 chipinfo->id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT; in bcma_detect_chip()
447 chipinfo->rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT; in bcma_detect_chip()
448 chipinfo->pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT; in bcma_detect_chip()
451 (chipinfo->id > 0x9999) ? "%d" : "0x%04X", chipinfo->id); in bcma_detect_chip()
452 bcma_info(bus, "Found chip with id %s, rev 0x%02X and package 0x%02X\n", in bcma_detect_chip()
453 chip_id, chipinfo->rev, chipinfo->pkg); in bcma_detect_chip()
456 int bcma_bus_scan(struct bcma_bus *bus) in bcma_bus_scan() argument
463 /* Skip if bus was already scanned (e.g. during early register) */ in bcma_bus_scan()
464 if (bus->nr_cores) in bcma_bus_scan()
467 erombase = bcma_scan_read32(bus, BCMA_CC_EROM); in bcma_bus_scan()
468 if (bus->hosttype == BCMA_HOSTTYPE_SOC) { in bcma_bus_scan()
471 return -ENOMEM; in bcma_bus_scan()
473 eromptr = bus->mmio; in bcma_bus_scan()
478 bcma_scan_switch_core(bus, erombase); in bcma_bus_scan()
484 err = -ENOMEM; in bcma_bus_scan()
487 INIT_LIST_HEAD(&core->list); in bcma_bus_scan()
488 core->bus = bus; in bcma_bus_scan()
490 err = bcma_get_next_core(bus, &eromptr, NULL, core_num, core); in bcma_bus_scan()
493 if (err == -ENODEV) { in bcma_bus_scan()
496 } else if (err == -ENXIO) { in bcma_bus_scan()
498 } else if (err == -ESPIPE) { in bcma_bus_scan()
504 core->core_index = core_num++; in bcma_bus_scan()
505 bus->nr_cores++; in bcma_bus_scan()
506 other_core = bcma_find_core_reverse(bus, core->id.id); in bcma_bus_scan()
507 core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1; in bcma_bus_scan()
508 bcma_prepare_core(bus, core); in bcma_bus_scan()
510 bcma_info(bus, "Core %d found: %s (manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", in bcma_bus_scan()
511 core->core_index, bcma_device_name(&core->id), in bcma_bus_scan()
512 core->id.manuf, core->id.id, core->id.rev, in bcma_bus_scan()
513 core->id.class); in bcma_bus_scan()
515 list_add_tail(&core->list, &bus->cores); in bcma_bus_scan()
520 if (bus->hosttype == BCMA_HOSTTYPE_SOC) in bcma_bus_scan()