Commit | Line | Data |
---|---|---|
8369ae33 RM |
1 | /* |
2 | * Broadcom specific AMBA | |
3 | * Bus scanning | |
4 | * | |
5 | * Licensed under the GNU/GPL. See COPYING for details. | |
6 | */ | |
7 | ||
8 | #include "scan.h" | |
9 | #include "bcma_private.h" | |
10 | ||
11 | #include <linux/bcma/bcma.h> | |
12 | #include <linux/bcma/bcma_regs.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/dma-mapping.h> | |
16 | #include <linux/slab.h> | |
17 | ||
18 | struct bcma_device_id_name { | |
19 | u16 id; | |
20 | const char *name; | |
21 | }; | |
82a7c2bb NH |
22 | |
23 | static const struct bcma_device_id_name bcma_arm_device_names[] = { | |
24 | { BCMA_CORE_ARM_1176, "ARM 1176" }, | |
25 | { BCMA_CORE_ARM_7TDMI, "ARM 7TDMI" }, | |
26 | { BCMA_CORE_ARM_CM3, "ARM CM3" }, | |
27 | }; | |
28 | ||
29 | static const struct bcma_device_id_name bcma_bcm_device_names[] = { | |
8369ae33 RM |
30 | { BCMA_CORE_OOB_ROUTER, "OOB Router" }, |
31 | { BCMA_CORE_INVALID, "Invalid" }, | |
32 | { BCMA_CORE_CHIPCOMMON, "ChipCommon" }, | |
33 | { BCMA_CORE_ILINE20, "ILine 20" }, | |
34 | { BCMA_CORE_SRAM, "SRAM" }, | |
35 | { BCMA_CORE_SDRAM, "SDRAM" }, | |
36 | { BCMA_CORE_PCI, "PCI" }, | |
8369ae33 RM |
37 | { BCMA_CORE_ETHERNET, "Fast Ethernet" }, |
38 | { BCMA_CORE_V90, "V90" }, | |
39 | { BCMA_CORE_USB11_HOSTDEV, "USB 1.1 Hostdev" }, | |
40 | { BCMA_CORE_ADSL, "ADSL" }, | |
41 | { BCMA_CORE_ILINE100, "ILine 100" }, | |
42 | { BCMA_CORE_IPSEC, "IPSEC" }, | |
43 | { BCMA_CORE_UTOPIA, "UTOPIA" }, | |
44 | { BCMA_CORE_PCMCIA, "PCMCIA" }, | |
45 | { BCMA_CORE_INTERNAL_MEM, "Internal Memory" }, | |
46 | { BCMA_CORE_MEMC_SDRAM, "MEMC SDRAM" }, | |
47 | { BCMA_CORE_OFDM, "OFDM" }, | |
48 | { BCMA_CORE_EXTIF, "EXTIF" }, | |
49 | { BCMA_CORE_80211, "IEEE 802.11" }, | |
50 | { BCMA_CORE_PHY_A, "PHY A" }, | |
51 | { BCMA_CORE_PHY_B, "PHY B" }, | |
52 | { BCMA_CORE_PHY_G, "PHY G" }, | |
8369ae33 RM |
53 | { BCMA_CORE_USB11_HOST, "USB 1.1 Host" }, |
54 | { BCMA_CORE_USB11_DEV, "USB 1.1 Device" }, | |
55 | { BCMA_CORE_USB20_HOST, "USB 2.0 Host" }, | |
56 | { BCMA_CORE_USB20_DEV, "USB 2.0 Device" }, | |
57 | { BCMA_CORE_SDIO_HOST, "SDIO Host" }, | |
58 | { BCMA_CORE_ROBOSWITCH, "Roboswitch" }, | |
59 | { BCMA_CORE_PARA_ATA, "PATA" }, | |
60 | { BCMA_CORE_SATA_XORDMA, "SATA XOR-DMA" }, | |
61 | { BCMA_CORE_ETHERNET_GBIT, "GBit Ethernet" }, | |
62 | { BCMA_CORE_PCIE, "PCIe" }, | |
63 | { BCMA_CORE_PHY_N, "PHY N" }, | |
64 | { BCMA_CORE_SRAM_CTL, "SRAM Controller" }, | |
65 | { BCMA_CORE_MINI_MACPHY, "Mini MACPHY" }, | |
8369ae33 RM |
66 | { BCMA_CORE_PHY_LP, "PHY LP" }, |
67 | { BCMA_CORE_PMU, "PMU" }, | |
68 | { BCMA_CORE_PHY_SSN, "PHY SSN" }, | |
69 | { BCMA_CORE_SDIO_DEV, "SDIO Device" }, | |
8369ae33 | 70 | { BCMA_CORE_PHY_HT, "PHY HT" }, |
8369ae33 RM |
71 | { BCMA_CORE_MAC_GBIT, "GBit MAC" }, |
72 | { BCMA_CORE_DDR12_MEM_CTL, "DDR1/DDR2 Memory Controller" }, | |
73 | { BCMA_CORE_PCIE_RC, "PCIe Root Complex" }, | |
74 | { BCMA_CORE_OCP_OCP_BRIDGE, "OCP to OCP Bridge" }, | |
75 | { BCMA_CORE_SHARED_COMMON, "Common Shared" }, | |
76 | { BCMA_CORE_OCP_AHB_BRIDGE, "OCP to AHB Bridge" }, | |
77 | { BCMA_CORE_SPI_HOST, "SPI Host" }, | |
78 | { BCMA_CORE_I2S, "I2S" }, | |
79 | { BCMA_CORE_SDR_DDR1_MEM_CTL, "SDR/DDR1 Memory Controller" }, | |
80 | { BCMA_CORE_SHIM, "SHIM" }, | |
81 | { BCMA_CORE_DEFAULT, "Default" }, | |
82 | }; | |
82a7c2bb NH |
83 | |
84 | static const struct bcma_device_id_name bcma_mips_device_names[] = { | |
85 | { BCMA_CORE_MIPS, "MIPS" }, | |
86 | { BCMA_CORE_MIPS_3302, "MIPS 3302" }, | |
87 | { BCMA_CORE_MIPS_74K, "MIPS 74K" }, | |
88 | }; | |
89 | ||
90 | static const char *bcma_device_name(const struct bcma_device_id *id) | |
8369ae33 | 91 | { |
82a7c2bb NH |
92 | const struct bcma_device_id_name *names; |
93 | int size, i; | |
8369ae33 | 94 | |
82a7c2bb NH |
95 | /* search manufacturer specific names */ |
96 | switch (id->manuf) { | |
97 | case BCMA_MANUF_ARM: | |
98 | names = bcma_arm_device_names; | |
99 | size = ARRAY_SIZE(bcma_arm_device_names); | |
100 | break; | |
101 | case BCMA_MANUF_BCM: | |
102 | names = bcma_bcm_device_names; | |
103 | size = ARRAY_SIZE(bcma_bcm_device_names); | |
104 | break; | |
105 | case BCMA_MANUF_MIPS: | |
106 | names = bcma_mips_device_names; | |
107 | size = ARRAY_SIZE(bcma_mips_device_names); | |
108 | break; | |
109 | default: | |
110 | return "UNKNOWN"; | |
8369ae33 | 111 | } |
82a7c2bb NH |
112 | |
113 | for (i = 0; i < size; i++) { | |
114 | if (names[i].id == id->id) | |
115 | return names[i].name; | |
116 | } | |
117 | ||
8369ae33 RM |
118 | return "UNKNOWN"; |
119 | } | |
120 | ||
121 | static u32 bcma_scan_read32(struct bcma_bus *bus, u8 current_coreidx, | |
122 | u16 offset) | |
123 | { | |
124 | return readl(bus->mmio + offset); | |
125 | } | |
126 | ||
127 | static void bcma_scan_switch_core(struct bcma_bus *bus, u32 addr) | |
128 | { | |
129 | if (bus->hosttype == BCMA_HOSTTYPE_PCI) | |
130 | pci_write_config_dword(bus->host_pci, BCMA_PCI_BAR0_WIN, | |
131 | addr); | |
132 | } | |
133 | ||
134 | static u32 bcma_erom_get_ent(struct bcma_bus *bus, u32 **eromptr) | |
135 | { | |
136 | u32 ent = readl(*eromptr); | |
137 | (*eromptr)++; | |
138 | return ent; | |
139 | } | |
140 | ||
141 | static void bcma_erom_push_ent(u32 **eromptr) | |
142 | { | |
143 | (*eromptr)--; | |
144 | } | |
145 | ||
146 | static s32 bcma_erom_get_ci(struct bcma_bus *bus, u32 **eromptr) | |
147 | { | |
148 | u32 ent = bcma_erom_get_ent(bus, eromptr); | |
149 | if (!(ent & SCAN_ER_VALID)) | |
150 | return -ENOENT; | |
151 | if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_CI) | |
152 | return -ENOENT; | |
153 | return ent; | |
154 | } | |
155 | ||
156 | static bool bcma_erom_is_end(struct bcma_bus *bus, u32 **eromptr) | |
157 | { | |
158 | u32 ent = bcma_erom_get_ent(bus, eromptr); | |
159 | bcma_erom_push_ent(eromptr); | |
160 | return (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID)); | |
161 | } | |
162 | ||
163 | static bool bcma_erom_is_bridge(struct bcma_bus *bus, u32 **eromptr) | |
164 | { | |
165 | u32 ent = bcma_erom_get_ent(bus, eromptr); | |
166 | bcma_erom_push_ent(eromptr); | |
167 | return (((ent & SCAN_ER_VALID)) && | |
168 | ((ent & SCAN_ER_TAGX) == SCAN_ER_TAG_ADDR) && | |
169 | ((ent & SCAN_ADDR_TYPE) == SCAN_ADDR_TYPE_BRIDGE)); | |
170 | } | |
171 | ||
172 | static void bcma_erom_skip_component(struct bcma_bus *bus, u32 **eromptr) | |
173 | { | |
174 | u32 ent; | |
175 | while (1) { | |
176 | ent = bcma_erom_get_ent(bus, eromptr); | |
177 | if ((ent & SCAN_ER_VALID) && | |
178 | ((ent & SCAN_ER_TAG) == SCAN_ER_TAG_CI)) | |
179 | break; | |
180 | if (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID)) | |
181 | break; | |
182 | } | |
183 | bcma_erom_push_ent(eromptr); | |
184 | } | |
185 | ||
186 | static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 **eromptr) | |
187 | { | |
188 | u32 ent = bcma_erom_get_ent(bus, eromptr); | |
189 | if (!(ent & SCAN_ER_VALID)) | |
190 | return -ENOENT; | |
191 | if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_MP) | |
192 | return -ENOENT; | |
193 | return ent; | |
194 | } | |
195 | ||
196 | static s32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 **eromptr, | |
197 | u32 type, u8 port) | |
198 | { | |
199 | u32 addrl, addrh, sizel, sizeh = 0; | |
200 | u32 size; | |
201 | ||
202 | u32 ent = bcma_erom_get_ent(bus, eromptr); | |
203 | if ((!(ent & SCAN_ER_VALID)) || | |
204 | ((ent & SCAN_ER_TAGX) != SCAN_ER_TAG_ADDR) || | |
205 | ((ent & SCAN_ADDR_TYPE) != type) || | |
206 | (((ent & SCAN_ADDR_PORT) >> SCAN_ADDR_PORT_SHIFT) != port)) { | |
207 | bcma_erom_push_ent(eromptr); | |
208 | return -EINVAL; | |
209 | } | |
210 | ||
211 | addrl = ent & SCAN_ADDR_ADDR; | |
212 | if (ent & SCAN_ADDR_AG32) | |
213 | addrh = bcma_erom_get_ent(bus, eromptr); | |
214 | else | |
215 | addrh = 0; | |
216 | ||
217 | if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) { | |
218 | size = bcma_erom_get_ent(bus, eromptr); | |
219 | sizel = size & SCAN_SIZE_SZ; | |
220 | if (size & SCAN_SIZE_SG32) | |
221 | sizeh = bcma_erom_get_ent(bus, eromptr); | |
222 | } else | |
223 | sizel = SCAN_ADDR_SZ_BASE << | |
224 | ((ent & SCAN_ADDR_SZ) >> SCAN_ADDR_SZ_SHIFT); | |
225 | ||
226 | return addrl; | |
227 | } | |
228 | ||
517f43e5 HM |
229 | static struct bcma_device *bcma_find_core_by_index(struct bcma_bus *bus, |
230 | u16 index) | |
231 | { | |
232 | struct bcma_device *core; | |
233 | ||
234 | list_for_each_entry(core, &bus->cores, list) { | |
235 | if (core->core_index == index) | |
236 | return core; | |
237 | } | |
238 | return NULL; | |
239 | } | |
240 | ||
5f2d6171 HM |
241 | static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid) |
242 | { | |
243 | struct bcma_device *core; | |
244 | ||
245 | list_for_each_entry_reverse(core, &bus->cores, list) { | |
246 | if (core->id.id == coreid) | |
247 | return core; | |
248 | } | |
249 | return NULL; | |
250 | } | |
251 | ||
982eee67 | 252 | static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, |
517f43e5 | 253 | struct bcma_device_id *match, int core_num, |
982eee67 HM |
254 | struct bcma_device *core) |
255 | { | |
256 | s32 tmp; | |
257 | u8 i, j; | |
258 | s32 cia, cib; | |
259 | u8 ports[2], wrappers[2]; | |
260 | ||
261 | /* get CIs */ | |
262 | cia = bcma_erom_get_ci(bus, eromptr); | |
263 | if (cia < 0) { | |
264 | bcma_erom_push_ent(eromptr); | |
265 | if (bcma_erom_is_end(bus, eromptr)) | |
266 | return -ESPIPE; | |
267 | return -EILSEQ; | |
268 | } | |
269 | cib = bcma_erom_get_ci(bus, eromptr); | |
270 | if (cib < 0) | |
271 | return -EILSEQ; | |
272 | ||
273 | /* parse CIs */ | |
274 | core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT; | |
275 | core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT; | |
276 | core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT; | |
277 | ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT; | |
278 | ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT; | |
279 | wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT; | |
280 | wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT; | |
281 | core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT; | |
282 | ||
283 | if (((core->id.manuf == BCMA_MANUF_ARM) && | |
284 | (core->id.id == 0xFFF)) || | |
285 | (ports[1] == 0)) { | |
286 | bcma_erom_skip_component(bus, eromptr); | |
287 | return -ENXIO; | |
288 | } | |
289 | ||
290 | /* check if component is a core at all */ | |
291 | if (wrappers[0] + wrappers[1] == 0) { | |
292 | /* we could save addrl of the router | |
293 | if (cid == BCMA_CORE_OOB_ROUTER) | |
294 | */ | |
295 | bcma_erom_skip_component(bus, eromptr); | |
296 | return -ENXIO; | |
297 | } | |
298 | ||
299 | if (bcma_erom_is_bridge(bus, eromptr)) { | |
300 | bcma_erom_skip_component(bus, eromptr); | |
301 | return -ENXIO; | |
302 | } | |
303 | ||
517f43e5 HM |
304 | if (bcma_find_core_by_index(bus, core_num)) { |
305 | bcma_erom_skip_component(bus, eromptr); | |
306 | return -ENODEV; | |
307 | } | |
308 | ||
309 | if (match && ((match->manuf != BCMA_ANY_MANUF && | |
310 | match->manuf != core->id.manuf) || | |
311 | (match->id != BCMA_ANY_ID && match->id != core->id.id) || | |
312 | (match->rev != BCMA_ANY_REV && match->rev != core->id.rev) || | |
313 | (match->class != BCMA_ANY_CLASS && match->class != core->id.class) | |
314 | )) { | |
315 | bcma_erom_skip_component(bus, eromptr); | |
316 | return -ENODEV; | |
317 | } | |
318 | ||
982eee67 HM |
319 | /* get & parse master ports */ |
320 | for (i = 0; i < ports[0]; i++) { | |
4e0d8cc1 | 321 | s32 mst_port_d = bcma_erom_get_mst_port(bus, eromptr); |
982eee67 HM |
322 | if (mst_port_d < 0) |
323 | return -EILSEQ; | |
324 | } | |
325 | ||
e167d9fb HM |
326 | /* First Slave Address Descriptor should be port 0: |
327 | * the main register space for the core | |
328 | */ | |
329 | tmp = bcma_erom_get_addr_desc(bus, eromptr, SCAN_ADDR_TYPE_SLAVE, 0); | |
330 | if (tmp <= 0) { | |
331 | /* Try again to see if it is a bridge */ | |
332 | tmp = bcma_erom_get_addr_desc(bus, eromptr, | |
333 | SCAN_ADDR_TYPE_BRIDGE, 0); | |
334 | if (tmp <= 0) { | |
335 | return -EILSEQ; | |
336 | } else { | |
337 | pr_info("Bridge found\n"); | |
338 | return -ENXIO; | |
339 | } | |
340 | } | |
341 | core->addr = tmp; | |
342 | ||
982eee67 HM |
343 | /* get & parse slave ports */ |
344 | for (i = 0; i < ports[1]; i++) { | |
345 | for (j = 0; ; j++) { | |
346 | tmp = bcma_erom_get_addr_desc(bus, eromptr, | |
347 | SCAN_ADDR_TYPE_SLAVE, i); | |
348 | if (tmp < 0) { | |
349 | /* no more entries for port _i_ */ | |
350 | /* pr_debug("erom: slave port %d " | |
351 | * "has %d descriptors\n", i, j); */ | |
352 | break; | |
353 | } else { | |
354 | if (i == 0 && j == 0) | |
e167d9fb | 355 | core->addr1 = tmp; |
982eee67 HM |
356 | } |
357 | } | |
358 | } | |
359 | ||
360 | /* get & parse master wrappers */ | |
361 | for (i = 0; i < wrappers[0]; i++) { | |
362 | for (j = 0; ; j++) { | |
363 | tmp = bcma_erom_get_addr_desc(bus, eromptr, | |
364 | SCAN_ADDR_TYPE_MWRAP, i); | |
365 | if (tmp < 0) { | |
366 | /* no more entries for port _i_ */ | |
367 | /* pr_debug("erom: master wrapper %d " | |
368 | * "has %d descriptors\n", i, j); */ | |
369 | break; | |
370 | } else { | |
371 | if (i == 0 && j == 0) | |
372 | core->wrap = tmp; | |
373 | } | |
374 | } | |
375 | } | |
376 | ||
377 | /* get & parse slave wrappers */ | |
378 | for (i = 0; i < wrappers[1]; i++) { | |
379 | u8 hack = (ports[1] == 1) ? 0 : 1; | |
380 | for (j = 0; ; j++) { | |
381 | tmp = bcma_erom_get_addr_desc(bus, eromptr, | |
382 | SCAN_ADDR_TYPE_SWRAP, i + hack); | |
383 | if (tmp < 0) { | |
384 | /* no more entries for port _i_ */ | |
385 | /* pr_debug("erom: master wrapper %d " | |
386 | * has %d descriptors\n", i, j); */ | |
387 | break; | |
388 | } else { | |
389 | if (wrappers[0] == 0 && !i && !j) | |
390 | core->wrap = tmp; | |
391 | } | |
392 | } | |
393 | } | |
ecd177c2 HM |
394 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) { |
395 | core->io_addr = ioremap_nocache(core->addr, BCMA_CORE_SIZE); | |
396 | if (!core->io_addr) | |
397 | return -ENOMEM; | |
398 | core->io_wrap = ioremap_nocache(core->wrap, BCMA_CORE_SIZE); | |
399 | if (!core->io_wrap) { | |
400 | iounmap(core->io_addr); | |
401 | return -ENOMEM; | |
402 | } | |
403 | } | |
982eee67 HM |
404 | return 0; |
405 | } | |
406 | ||
517f43e5 | 407 | void bcma_init_bus(struct bcma_bus *bus) |
8369ae33 | 408 | { |
8369ae33 | 409 | s32 tmp; |
f0d4724b | 410 | struct bcma_chipinfo *chipinfo = &(bus->chipinfo); |
8369ae33 | 411 | |
517f43e5 HM |
412 | if (bus->init_done) |
413 | return; | |
414 | ||
8369ae33 RM |
415 | INIT_LIST_HEAD(&bus->cores); |
416 | bus->nr_cores = 0; | |
417 | ||
418 | bcma_scan_switch_core(bus, BCMA_ADDR_BASE); | |
419 | ||
420 | tmp = bcma_scan_read32(bus, 0, BCMA_CC_ID); | |
f0d4724b HM |
421 | chipinfo->id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT; |
422 | chipinfo->rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT; | |
423 | chipinfo->pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT; | |
424 | pr_info("Found chip with id 0x%04X, rev 0x%02X and package 0x%02X\n", | |
425 | chipinfo->id, chipinfo->rev, chipinfo->pkg); | |
426 | ||
517f43e5 | 427 | bus->init_done = true; |
67a5c29e HM |
428 | } |
429 | ||
430 | int bcma_bus_scan(struct bcma_bus *bus) | |
431 | { | |
432 | u32 erombase; | |
433 | u32 __iomem *eromptr, *eromend; | |
434 | ||
517f43e5 | 435 | int err, core_num = 0; |
67a5c29e HM |
436 | |
437 | bcma_init_bus(bus); | |
8369ae33 RM |
438 | |
439 | erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM); | |
ecd177c2 HM |
440 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) { |
441 | eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE); | |
442 | if (!eromptr) | |
443 | return -ENOMEM; | |
444 | } else { | |
445 | eromptr = bus->mmio; | |
446 | } | |
447 | ||
8369ae33 RM |
448 | eromend = eromptr + BCMA_CORE_SIZE / sizeof(u32); |
449 | ||
450 | bcma_scan_switch_core(bus, erombase); | |
451 | ||
452 | while (eromptr < eromend) { | |
5f2d6171 | 453 | struct bcma_device *other_core; |
8369ae33 RM |
454 | struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL); |
455 | if (!core) | |
456 | return -ENOMEM; | |
457 | INIT_LIST_HEAD(&core->list); | |
458 | core->bus = bus; | |
459 | ||
517f43e5 | 460 | err = bcma_get_next_core(bus, &eromptr, NULL, core_num, core); |
f9721ed2 JJ |
461 | if (err < 0) { |
462 | kfree(core); | |
463 | if (err == -ENODEV) { | |
464 | core_num++; | |
465 | continue; | |
466 | } else if (err == -ENXIO) { | |
467 | continue; | |
468 | } else if (err == -ESPIPE) { | |
469 | break; | |
470 | } | |
982eee67 | 471 | return err; |
f9721ed2 | 472 | } |
8369ae33 | 473 | |
517f43e5 HM |
474 | core->core_index = core_num++; |
475 | bus->nr_cores++; | |
5f2d6171 HM |
476 | other_core = bcma_find_core_reverse(bus, core->id.id); |
477 | core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1; | |
517f43e5 | 478 | |
8369ae33 RM |
479 | pr_info("Core %d found: %s " |
480 | "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", | |
517f43e5 | 481 | core->core_index, bcma_device_name(&core->id), |
8369ae33 RM |
482 | core->id.manuf, core->id.id, core->id.rev, |
483 | core->id.class); | |
484 | ||
8369ae33 | 485 | list_add(&core->list, &bus->cores); |
8369ae33 RM |
486 | } |
487 | ||
ecd177c2 HM |
488 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) |
489 | iounmap(eromptr); | |
490 | ||
8369ae33 RM |
491 | return 0; |
492 | } | |
517f43e5 HM |
493 | |
494 | int __init bcma_bus_scan_early(struct bcma_bus *bus, | |
495 | struct bcma_device_id *match, | |
496 | struct bcma_device *core) | |
497 | { | |
498 | u32 erombase; | |
499 | u32 __iomem *eromptr, *eromend; | |
500 | ||
ecd177c2 HM |
501 | int err = -ENODEV; |
502 | int core_num = 0; | |
517f43e5 HM |
503 | |
504 | erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM); | |
ecd177c2 HM |
505 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) { |
506 | eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE); | |
507 | if (!eromptr) | |
508 | return -ENOMEM; | |
509 | } else { | |
510 | eromptr = bus->mmio; | |
511 | } | |
512 | ||
517f43e5 HM |
513 | eromend = eromptr + BCMA_CORE_SIZE / sizeof(u32); |
514 | ||
515 | bcma_scan_switch_core(bus, erombase); | |
516 | ||
517 | while (eromptr < eromend) { | |
518 | memset(core, 0, sizeof(*core)); | |
519 | INIT_LIST_HEAD(&core->list); | |
520 | core->bus = bus; | |
521 | ||
522 | err = bcma_get_next_core(bus, &eromptr, match, core_num, core); | |
523 | if (err == -ENODEV) { | |
524 | core_num++; | |
525 | continue; | |
526 | } else if (err == -ENXIO) | |
527 | continue; | |
528 | else if (err == -ESPIPE) | |
529 | break; | |
530 | else if (err < 0) | |
531 | return err; | |
532 | ||
533 | core->core_index = core_num++; | |
534 | bus->nr_cores++; | |
535 | pr_info("Core %d found: %s " | |
536 | "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", | |
537 | core->core_index, bcma_device_name(&core->id), | |
538 | core->id.manuf, core->id.id, core->id.rev, | |
539 | core->id.class); | |
540 | ||
541 | list_add(&core->list, &bus->cores); | |
ecd177c2 HM |
542 | err = 0; |
543 | break; | |
517f43e5 HM |
544 | } |
545 | ||
ecd177c2 HM |
546 | if (bus->hosttype == BCMA_HOSTTYPE_SOC) |
547 | iounmap(eromptr); | |
548 | ||
549 | return err; | |
517f43e5 | 550 | } |