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, u8 current_coreidx, in bcma_scan_read32() argument
147 return readl(bus->mmio + offset); in bcma_scan_read32()
150 static void bcma_scan_switch_core(struct bcma_bus *bus, u32 addr) in bcma_scan_switch_core() argument
152 if (bus->hosttype == BCMA_HOSTTYPE_PCI) in bcma_scan_switch_core()
153 pci_write_config_dword(bus->host_pci, BCMA_PCI_BAR0_WIN, in bcma_scan_switch_core()
157 static u32 bcma_erom_get_ent(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_get_ent() argument
166 (*eromptr)--; in bcma_erom_push_ent()
169 static s32 bcma_erom_get_ci(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_get_ci() argument
171 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_ci()
173 return -ENOENT; in bcma_erom_get_ci()
175 return -ENOENT; in bcma_erom_get_ci()
179 static bool bcma_erom_is_end(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_is_end() argument
181 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_is_end()
186 static bool bcma_erom_is_bridge(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_is_bridge() argument
188 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_is_bridge()
195 static void bcma_erom_skip_component(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_skip_component() argument
199 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_skip_component()
209 static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 __iomem **eromptr) in bcma_erom_get_mst_port() argument
211 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_mst_port()
213 return -ENOENT; in bcma_erom_get_mst_port()
215 return -ENOENT; in bcma_erom_get_mst_port()
219 static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr, in bcma_erom_get_addr_desc() argument
225 u32 ent = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
231 return (u32)-EINVAL; in bcma_erom_get_addr_desc()
236 bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
239 size = bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
241 bcma_erom_get_ent(bus, eromptr); in bcma_erom_get_addr_desc()
247 static struct bcma_device *bcma_find_core_by_index(struct bcma_bus *bus, in bcma_find_core_by_index() argument
252 list_for_each_entry(core, &bus->cores, list) { in bcma_find_core_by_index()
253 if (core->core_index == index) in bcma_find_core_by_index()
259 static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid) in bcma_find_core_reverse() argument
263 list_for_each_entry_reverse(core, &bus->cores, list) { in bcma_find_core_reverse()
264 if (core->id.id == coreid) in bcma_find_core_reverse()
270 #define IS_ERR_VALUE_U32(x) ((x) >= (u32)-MAX_ERRNO)
272 static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, in bcma_get_next_core() argument
282 cia = bcma_erom_get_ci(bus, eromptr); in bcma_get_next_core()
285 if (bcma_erom_is_end(bus, eromptr)) in bcma_get_next_core()
286 return -ESPIPE; in bcma_get_next_core()
287 return -EILSEQ; in bcma_get_next_core()
289 cib = bcma_erom_get_ci(bus, eromptr); in bcma_get_next_core()
291 return -EILSEQ; in bcma_get_next_core()
294 core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT; in bcma_get_next_core()
295 core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT; in bcma_get_next_core()
296 core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT; in bcma_get_next_core()
301 core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT; in bcma_get_next_core()
303 if (((core->id.manuf == BCMA_MANUF_ARM) && in bcma_get_next_core()
304 (core->id.id == 0xFFF)) || in bcma_get_next_core()
306 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
307 return -ENXIO; in bcma_get_next_core()
313 switch (core->id.id) { in bcma_get_next_core()
321 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
322 return -ENXIO; in bcma_get_next_core()
326 if (bcma_erom_is_bridge(bus, eromptr)) { in bcma_get_next_core()
327 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
328 return -ENXIO; in bcma_get_next_core()
331 if (bcma_find_core_by_index(bus, core_num)) { in bcma_get_next_core()
332 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
333 return -ENODEV; in bcma_get_next_core()
336 if (match && ((match->manuf != BCMA_ANY_MANUF && in bcma_get_next_core()
337 match->manuf != core->id.manuf) || in bcma_get_next_core()
338 (match->id != BCMA_ANY_ID && match->id != core->id.id) || in bcma_get_next_core()
339 (match->rev != BCMA_ANY_REV && match->rev != core->id.rev) || in bcma_get_next_core()
340 (match->class != BCMA_ANY_CLASS && match->class != core->id.class) in bcma_get_next_core()
342 bcma_erom_skip_component(bus, eromptr); in bcma_get_next_core()
343 return -ENODEV; in bcma_get_next_core()
348 s32 mst_port_d = bcma_erom_get_mst_port(bus, eromptr); in bcma_get_next_core()
350 return -EILSEQ; in bcma_get_next_core()
356 tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, 0); in bcma_get_next_core()
359 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
362 return -EILSEQ; in bcma_get_next_core()
364 bcma_info(bus, "Bridge found\n"); in bcma_get_next_core()
365 return -ENXIO; in bcma_get_next_core()
368 core->addr = tmp; in bcma_get_next_core()
374 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
381 } else if (k < ARRAY_SIZE(core->addr_s)) { in bcma_get_next_core()
382 core->addr_s[k] = tmp; in bcma_get_next_core()
391 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
400 core->wrap = tmp; in bcma_get_next_core()
409 tmp = bcma_erom_get_addr_desc(bus, eromptr, in bcma_get_next_core()
418 core->wrap = tmp; in bcma_get_next_core()
422 if (bus->hosttype == BCMA_HOSTTYPE_SOC) { in bcma_get_next_core()
423 core->io_addr = ioremap(core->addr, BCMA_CORE_SIZE); in bcma_get_next_core()
424 if (!core->io_addr) in bcma_get_next_core()
425 return -ENOMEM; in bcma_get_next_core()
426 if (core->wrap) { in bcma_get_next_core()
427 core->io_wrap = ioremap(core->wrap, in bcma_get_next_core()
429 if (!core->io_wrap) { in bcma_get_next_core()
430 iounmap(core->io_addr); in bcma_get_next_core()
431 return -ENOMEM; in bcma_get_next_core()
438 void bcma_detect_chip(struct bcma_bus *bus) in bcma_detect_chip() argument
441 struct bcma_chipinfo *chipinfo = &(bus->chipinfo); in bcma_detect_chip()
444 bcma_scan_switch_core(bus, BCMA_ADDR_BASE); in bcma_detect_chip()
446 tmp = bcma_scan_read32(bus, 0, BCMA_CC_ID); in bcma_detect_chip()
447 chipinfo->id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT; in bcma_detect_chip()
448 chipinfo->rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT; in bcma_detect_chip()
449 chipinfo->pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT; in bcma_detect_chip()
452 (chipinfo->id > 0x9999) ? "%d" : "0x%04X", chipinfo->id); in bcma_detect_chip()
453 bcma_info(bus, "Found chip with id %s, rev 0x%02X and package 0x%02X\n", in bcma_detect_chip()
454 chip_id, chipinfo->rev, chipinfo->pkg); in bcma_detect_chip()
457 int bcma_bus_scan(struct bcma_bus *bus) in bcma_bus_scan() argument
464 /* Skip if bus was already scanned (e.g. during early register) */ in bcma_bus_scan()
465 if (bus->nr_cores) in bcma_bus_scan()
468 erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM); in bcma_bus_scan()
469 if (bus->hosttype == BCMA_HOSTTYPE_SOC) { in bcma_bus_scan()
472 return -ENOMEM; in bcma_bus_scan()
474 eromptr = bus->mmio; in bcma_bus_scan()
479 bcma_scan_switch_core(bus, erombase); in bcma_bus_scan()
485 err = -ENOMEM; in bcma_bus_scan()
488 INIT_LIST_HEAD(&core->list); in bcma_bus_scan()
489 core->bus = bus; in bcma_bus_scan()
491 err = bcma_get_next_core(bus, &eromptr, NULL, core_num, core); in bcma_bus_scan()
494 if (err == -ENODEV) { in bcma_bus_scan()
497 } else if (err == -ENXIO) { in bcma_bus_scan()
499 } else if (err == -ESPIPE) { in bcma_bus_scan()
505 core->core_index = core_num++; in bcma_bus_scan()
506 bus->nr_cores++; in bcma_bus_scan()
507 other_core = bcma_find_core_reverse(bus, core->id.id); in bcma_bus_scan()
508 core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1; in bcma_bus_scan()
509 bcma_prepare_core(bus, core); in bcma_bus_scan()
511 bcma_info(bus, "Core %d found: %s (manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", in bcma_bus_scan()
512 core->core_index, bcma_device_name(&core->id), in bcma_bus_scan()
513 core->id.manuf, core->id.id, core->id.rev, in bcma_bus_scan()
514 core->id.class); in bcma_bus_scan()
516 list_add_tail(&core->list, &bus->cores); in bcma_bus_scan()
521 if (bus->hosttype == BCMA_HOSTTYPE_SOC) in bcma_bus_scan()