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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Renesas SoC Identification
4 *
5 * Copyright (C) 2014-2016 Glider bvba
6 */
7
8#include <linux/io.h>
9#include <linux/of.h>
10#include <linux/of_address.h>
11#include <linux/slab.h>
12#include <linux/string.h>
13#include <linux/sys_soc.h>
14
15struct renesas_family {
16 const char name[16];
17 u32 reg; /* CCCR or PRR, if not in DT */
18};
19
20static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
21 .name = "R-Car Gen1",
22 .reg = 0xff000044, /* PRR (Product Register) */
23};
24
25static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
26 .name = "R-Car Gen2",
27 .reg = 0xff000044, /* PRR (Product Register) */
28};
29
30static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
31 .name = "R-Car Gen3",
32 .reg = 0xfff00044, /* PRR (Product Register) */
33};
34
35static const struct renesas_family fam_rcar_gen4 __initconst __maybe_unused = {
36 .name = "R-Car Gen4",
37};
38
39static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
40 .name = "R-Mobile",
41 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
42};
43
44static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
45 .name = "RZ/A1",
46};
47
48static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
49 .name = "RZ/A2",
50};
51
52static const struct renesas_family fam_rzfive __initconst __maybe_unused = {
53 .name = "RZ/Five",
54};
55
56static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
57 .name = "RZ/G1",
58 .reg = 0xff000044, /* PRR (Product Register) */
59};
60
61static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
62 .name = "RZ/G2",
63 .reg = 0xfff00044, /* PRR (Product Register) */
64};
65
66static const struct renesas_family fam_rzg2l __initconst __maybe_unused = {
67 .name = "RZ/G2L",
68};
69
70static const struct renesas_family fam_rzg2ul __initconst __maybe_unused = {
71 .name = "RZ/G2UL",
72};
73
74static const struct renesas_family fam_rzg3s __initconst __maybe_unused = {
75 .name = "RZ/G3S",
76};
77
78static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
79 .name = "RZ/V2L",
80};
81
82static const struct renesas_family fam_rzv2m __initconst __maybe_unused = {
83 .name = "RZ/V2M",
84};
85
86static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
87 .name = "SH-Mobile",
88 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
89};
90
91struct renesas_soc {
92 const struct renesas_family *family;
93 u32 id;
94};
95
96static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
97 .family = &fam_rza1,
98};
99
100static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
101 .family = &fam_rza2,
102 .id = 0x3b,
103};
104
105static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
106 .family = &fam_rmobile,
107 .id = 0x3f,
108};
109
110static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
111 .family = &fam_rmobile,
112 .id = 0x40,
113};
114
115static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
116 .family = &fam_rzfive,
117 .id = 0x847c447,
118};
119
120static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
121 .family = &fam_rzg1,
122 .id = 0x45,
123};
124
125static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
126 .family = &fam_rzg1,
127 .id = 0x47,
128};
129
130static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
131 .family = &fam_rzg1,
132 .id = 0x4b,
133};
134
135static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
136 .family = &fam_rzg1,
137 .id = 0x4c,
138};
139
140static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
141 .family = &fam_rzg1,
142 .id = 0x53,
143};
144
145static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
146 .family = &fam_rzg2,
147 .id = 0x52,
148};
149
150static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
151 .family = &fam_rzg2,
152 .id = 0x55,
153};
154
155static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
156 .family = &fam_rzg2,
157 .id = 0x57,
158};
159
160static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
161 .family = &fam_rzg2,
162 .id = 0x4f,
163};
164
165static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
166 .family = &fam_rzg2l,
167 .id = 0x841c447,
168};
169
170static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = {
171 .family = &fam_rzg2ul,
172 .id = 0x8450447,
173};
174
175static const struct renesas_soc soc_rz_g3s __initconst __maybe_unused = {
176 .family = &fam_rzg3s,
177 .id = 0x85e0447,
178};
179
180static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
181 .family = &fam_rzv2l,
182 .id = 0x8447447,
183};
184
185static const struct renesas_soc soc_rz_v2m __initconst __maybe_unused = {
186 .family = &fam_rzv2m,
187};
188
189static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
190 .family = &fam_rcar_gen1,
191};
192
193static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
194 .family = &fam_rcar_gen1,
195 .id = 0x3b,
196};
197
198static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
199 .family = &fam_rcar_gen2,
200 .id = 0x45,
201};
202
203static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
204 .family = &fam_rcar_gen2,
205 .id = 0x47,
206};
207
208static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
209 .family = &fam_rcar_gen2,
210 .id = 0x4a,
211};
212
213static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
214 .family = &fam_rcar_gen2,
215 .id = 0x4b,
216};
217
218static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
219 .family = &fam_rcar_gen2,
220 .id = 0x4c,
221};
222
223static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
224 .family = &fam_rcar_gen3,
225 .id = 0x4f,
226};
227
228static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
229 .family = &fam_rcar_gen3,
230 .id = 0x52,
231};
232
233static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
234 .family = &fam_rcar_gen3,
235 .id = 0x55,
236};
237
238static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
239 .family = &fam_rcar_gen3,
240 .id = 0x54,
241};
242
243static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
244 .family = &fam_rcar_gen3,
245 .id = 0x56,
246};
247
248static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
249 .family = &fam_rcar_gen3,
250 .id = 0x57,
251};
252
253static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
254 .family = &fam_rcar_gen3,
255 .id = 0x58,
256};
257
258static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = {
259 .family = &fam_rcar_gen4,
260 .id = 0x59,
261};
262
263static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = {
264 .family = &fam_rcar_gen4,
265 .id = 0x5a,
266};
267
268static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = {
269 .family = &fam_rcar_gen4,
270 .id = 0x5c,
271};
272
273static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
274 .family = &fam_shmobile,
275 .id = 0x37,
276};
277
278
279static const struct of_device_id renesas_socs[] __initconst __maybe_unused = {
280#ifdef CONFIG_ARCH_R7S72100
281 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
282#endif
283#ifdef CONFIG_ARCH_R7S9210
284 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
285#endif
286#ifdef CONFIG_ARCH_R8A73A4
287 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
288#endif
289#ifdef CONFIG_ARCH_R8A7740
290 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
291#endif
292#ifdef CONFIG_ARCH_R8A7742
293 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
294#endif
295#ifdef CONFIG_ARCH_R8A7743
296 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
297#endif
298#ifdef CONFIG_ARCH_R8A7744
299 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
300#endif
301#ifdef CONFIG_ARCH_R8A7745
302 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
303#endif
304#ifdef CONFIG_ARCH_R8A77470
305 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
306#endif
307#ifdef CONFIG_ARCH_R8A774A1
308 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
309#endif
310#ifdef CONFIG_ARCH_R8A774B1
311 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
312#endif
313#ifdef CONFIG_ARCH_R8A774C0
314 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
315#endif
316#ifdef CONFIG_ARCH_R8A774E1
317 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
318#endif
319#ifdef CONFIG_ARCH_R8A7778
320 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
321#endif
322#ifdef CONFIG_ARCH_R8A7779
323 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
324#endif
325#ifdef CONFIG_ARCH_R8A7790
326 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
327#endif
328#ifdef CONFIG_ARCH_R8A7791
329 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
330#endif
331#ifdef CONFIG_ARCH_R8A7792
332 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
333#endif
334#ifdef CONFIG_ARCH_R8A7793
335 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
336#endif
337#ifdef CONFIG_ARCH_R8A7794
338 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
339#endif
340#ifdef CONFIG_ARCH_R8A77951
341 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
342 { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 },
343 { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 },
344 { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 },
345 { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 },
346#endif
347#ifdef CONFIG_ARCH_R8A77960
348 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
349#endif
350#ifdef CONFIG_ARCH_R8A77961
351 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
352 { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w },
353 { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w },
354#endif
355#ifdef CONFIG_ARCH_R8A77965
356 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
357 { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n },
358 { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n },
359#endif
360#ifdef CONFIG_ARCH_R8A77970
361 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
362#endif
363#ifdef CONFIG_ARCH_R8A77980
364 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
365#endif
366#ifdef CONFIG_ARCH_R8A77990
367 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
368 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
369#endif
370#ifdef CONFIG_ARCH_R8A77995
371 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
372 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
373#endif
374#ifdef CONFIG_ARCH_R8A779A0
375 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
376#endif
377#ifdef CONFIG_ARCH_R8A779F0
378 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
379#endif
380#ifdef CONFIG_ARCH_R8A779G0
381 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
382#endif
383#ifdef CONFIG_ARCH_R9A07G043
384#ifdef CONFIG_RISCV
385 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
386#else
387 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
388#endif
389#endif
390#ifdef CONFIG_ARCH_R9A07G044
391 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
392#endif
393#ifdef CONFIG_ARCH_R9A07G054
394 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
395#endif
396#ifdef CONFIG_ARCH_R9A08G045
397 { .compatible = "renesas,r9a08g045", .data = &soc_rz_g3s },
398#endif
399#ifdef CONFIG_ARCH_R9A09G011
400 { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m },
401#endif
402#ifdef CONFIG_ARCH_SH73A0
403 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
404#endif
405 { /* sentinel */ }
406};
407
408struct renesas_id {
409 unsigned int offset;
410 u32 mask;
411};
412
413static const struct renesas_id id_bsid __initconst = {
414 .offset = 0,
415 .mask = 0xff0000,
416 /*
417 * TODO: Upper 4 bits of BSID are for chip version, but the format is
418 * not known at this time so we don't know how to specify eshi and eslo
419 */
420};
421
422static const struct renesas_id id_rzg2l __initconst = {
423 .offset = 0xa04,
424 .mask = 0xfffffff,
425};
426
427static const struct renesas_id id_rzv2m __initconst = {
428 .offset = 0x104,
429 .mask = 0xff,
430};
431
432static const struct renesas_id id_prr __initconst = {
433 .offset = 0,
434 .mask = 0xff00,
435};
436
437static const struct of_device_id renesas_ids[] __initconst = {
438 { .compatible = "renesas,bsid", .data = &id_bsid },
439 { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l },
440 { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l },
441 { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l },
442 { .compatible = "renesas,r9a08g045-sysc", .data = &id_rzg2l },
443 { .compatible = "renesas,r9a09g011-sys", .data = &id_rzv2m },
444 { .compatible = "renesas,prr", .data = &id_prr },
445 { /* sentinel */ }
446};
447
448static int __init renesas_soc_init(void)
449{
450 struct soc_device_attribute *soc_dev_attr;
451 unsigned int product, eshi = 0, eslo;
452 const struct renesas_family *family;
453 const struct of_device_id *match;
454 const struct renesas_soc *soc;
455 const struct renesas_id *id;
456 void __iomem *chipid = NULL;
457 const char *rev_prefix = "";
458 struct soc_device *soc_dev;
459 struct device_node *np;
460 const char *soc_id;
461 int ret;
462
463 match = of_match_node(renesas_socs, of_root);
464 if (!match)
465 return -ENODEV;
466
467 soc_id = strchr(match->compatible, ',') + 1;
468 soc = match->data;
469 family = soc->family;
470
471 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
472 if (np) {
473 id = match->data;
474 chipid = of_iomap(np, 0);
475 of_node_put(np);
476 } else if (soc->id && family->reg) {
477 /* Try hardcoded CCCR/PRR fallback */
478 id = &id_prr;
479 chipid = ioremap(family->reg, 4);
480 }
481
482 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
483 if (!soc_dev_attr) {
484 if (chipid)
485 iounmap(chipid);
486 return -ENOMEM;
487 }
488
489 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
490 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
491
492 if (chipid) {
493 product = readl(chipid + id->offset);
494 iounmap(chipid);
495
496 if (id == &id_prr) {
497 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
498 if ((product & 0x7fff) == 0x5210)
499 product ^= 0x11;
500 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
501 if ((product & 0x7fff) == 0x5211)
502 product ^= 0x12;
503
504 eshi = ((product >> 4) & 0x0f) + 1;
505 eslo = product & 0xf;
506 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
507 eshi, eslo);
508 } else if (id == &id_rzg2l) {
509 eshi = ((product >> 28) & 0x0f);
510 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
511 eshi);
512 rev_prefix = "Rev ";
513 } else if (id == &id_rzv2m) {
514 eshi = ((product >> 4) & 0x0f);
515 eslo = product & 0xf;
516 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u",
517 eshi, eslo);
518 }
519
520 if (soc->id &&
521 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
522 pr_warn("SoC mismatch (product = 0x%x)\n", product);
523 ret = -ENODEV;
524 goto free_soc_dev_attr;
525 }
526 }
527
528 pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
529 soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
530
531 soc_dev = soc_device_register(soc_dev_attr);
532 if (IS_ERR(soc_dev)) {
533 ret = PTR_ERR(soc_dev);
534 goto free_soc_dev_attr;
535 }
536
537 return 0;
538
539free_soc_dev_attr:
540 kfree(soc_dev_attr->revision);
541 kfree_const(soc_dev_attr->soc_id);
542 kfree_const(soc_dev_attr->family);
543 kfree(soc_dev_attr);
544 return ret;
545}
546early_initcall(renesas_soc_init);
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Renesas SoC Identification
4 *
5 * Copyright (C) 2014-2016 Glider bvba
6 */
7
8#include <linux/io.h>
9#include <linux/of.h>
10#include <linux/of_address.h>
11#include <linux/slab.h>
12#include <linux/string.h>
13#include <linux/sys_soc.h>
14
15struct renesas_family {
16 const char name[16];
17 u32 reg; /* CCCR or PRR, if not in DT */
18};
19
20static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
21 .name = "R-Car Gen1",
22 .reg = 0xff000044, /* PRR (Product Register) */
23};
24
25static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
26 .name = "R-Car Gen2",
27 .reg = 0xff000044, /* PRR (Product Register) */
28};
29
30static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
31 .name = "R-Car Gen3",
32 .reg = 0xfff00044, /* PRR (Product Register) */
33};
34
35static const struct renesas_family fam_rcar_gen4 __initconst __maybe_unused = {
36 .name = "R-Car Gen4",
37};
38
39static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
40 .name = "R-Mobile",
41 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
42};
43
44static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
45 .name = "RZ/A1",
46};
47
48static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
49 .name = "RZ/A2",
50};
51
52static const struct renesas_family fam_rzfive __initconst __maybe_unused = {
53 .name = "RZ/Five",
54};
55
56static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
57 .name = "RZ/G1",
58 .reg = 0xff000044, /* PRR (Product Register) */
59};
60
61static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
62 .name = "RZ/G2",
63 .reg = 0xfff00044, /* PRR (Product Register) */
64};
65
66static const struct renesas_family fam_rzg2l __initconst __maybe_unused = {
67 .name = "RZ/G2L",
68};
69
70static const struct renesas_family fam_rzg2ul __initconst __maybe_unused = {
71 .name = "RZ/G2UL",
72};
73
74static const struct renesas_family fam_rzg3s __initconst __maybe_unused = {
75 .name = "RZ/G3S",
76};
77
78static const struct renesas_family fam_rzv2h __initconst __maybe_unused = {
79 .name = "RZ/V2H",
80};
81
82static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
83 .name = "RZ/V2L",
84};
85
86static const struct renesas_family fam_rzv2m __initconst __maybe_unused = {
87 .name = "RZ/V2M",
88};
89
90static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
91 .name = "SH-Mobile",
92 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
93};
94
95struct renesas_soc {
96 const struct renesas_family *family;
97 u32 id;
98};
99
100static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
101 .family = &fam_rza1,
102};
103
104static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
105 .family = &fam_rza2,
106 .id = 0x3b,
107};
108
109static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
110 .family = &fam_rmobile,
111 .id = 0x3f,
112};
113
114static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
115 .family = &fam_rmobile,
116 .id = 0x40,
117};
118
119static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
120 .family = &fam_rzfive,
121 .id = 0x847c447,
122};
123
124static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
125 .family = &fam_rzg1,
126 .id = 0x45,
127};
128
129static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
130 .family = &fam_rzg1,
131 .id = 0x47,
132};
133
134static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
135 .family = &fam_rzg1,
136 .id = 0x4b,
137};
138
139static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
140 .family = &fam_rzg1,
141 .id = 0x4c,
142};
143
144static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
145 .family = &fam_rzg1,
146 .id = 0x53,
147};
148
149static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
150 .family = &fam_rzg2,
151 .id = 0x52,
152};
153
154static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
155 .family = &fam_rzg2,
156 .id = 0x55,
157};
158
159static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
160 .family = &fam_rzg2,
161 .id = 0x57,
162};
163
164static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
165 .family = &fam_rzg2,
166 .id = 0x4f,
167};
168
169static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
170 .family = &fam_rzg2l,
171 .id = 0x841c447,
172};
173
174static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = {
175 .family = &fam_rzg2ul,
176 .id = 0x8450447,
177};
178
179static const struct renesas_soc soc_rz_g3s __initconst __maybe_unused = {
180 .family = &fam_rzg3s,
181 .id = 0x85e0447,
182};
183
184static const struct renesas_soc soc_rz_v2h __initconst __maybe_unused = {
185 .family = &fam_rzv2h,
186 .id = 0x847a447,
187};
188
189static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
190 .family = &fam_rzv2l,
191 .id = 0x8447447,
192};
193
194static const struct renesas_soc soc_rz_v2m __initconst __maybe_unused = {
195 .family = &fam_rzv2m,
196};
197
198static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
199 .family = &fam_rcar_gen1,
200};
201
202static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
203 .family = &fam_rcar_gen1,
204 .id = 0x3b,
205};
206
207static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
208 .family = &fam_rcar_gen2,
209 .id = 0x45,
210};
211
212static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
213 .family = &fam_rcar_gen2,
214 .id = 0x47,
215};
216
217static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
218 .family = &fam_rcar_gen2,
219 .id = 0x4a,
220};
221
222static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
223 .family = &fam_rcar_gen2,
224 .id = 0x4b,
225};
226
227static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
228 .family = &fam_rcar_gen2,
229 .id = 0x4c,
230};
231
232static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
233 .family = &fam_rcar_gen3,
234 .id = 0x4f,
235};
236
237static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
238 .family = &fam_rcar_gen3,
239 .id = 0x52,
240};
241
242static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
243 .family = &fam_rcar_gen3,
244 .id = 0x55,
245};
246
247static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
248 .family = &fam_rcar_gen3,
249 .id = 0x54,
250};
251
252static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
253 .family = &fam_rcar_gen3,
254 .id = 0x56,
255};
256
257static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
258 .family = &fam_rcar_gen3,
259 .id = 0x57,
260};
261
262static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
263 .family = &fam_rcar_gen3,
264 .id = 0x58,
265};
266
267static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = {
268 .family = &fam_rcar_gen4,
269 .id = 0x59,
270};
271
272static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = {
273 .family = &fam_rcar_gen4,
274 .id = 0x5a,
275};
276
277static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = {
278 .family = &fam_rcar_gen4,
279 .id = 0x5c,
280};
281
282static const struct renesas_soc soc_rcar_v4m __initconst __maybe_unused = {
283 .family = &fam_rcar_gen4,
284 .id = 0x5d,
285};
286
287static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
288 .family = &fam_shmobile,
289 .id = 0x37,
290};
291
292
293static const struct of_device_id renesas_socs[] __initconst __maybe_unused = {
294#ifdef CONFIG_ARCH_R7S72100
295 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
296#endif
297#ifdef CONFIG_ARCH_R7S9210
298 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
299#endif
300#ifdef CONFIG_ARCH_R8A73A4
301 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
302#endif
303#ifdef CONFIG_ARCH_R8A7740
304 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
305#endif
306#ifdef CONFIG_ARCH_R8A7742
307 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
308#endif
309#ifdef CONFIG_ARCH_R8A7743
310 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
311#endif
312#ifdef CONFIG_ARCH_R8A7744
313 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
314#endif
315#ifdef CONFIG_ARCH_R8A7745
316 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
317#endif
318#ifdef CONFIG_ARCH_R8A77470
319 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
320#endif
321#ifdef CONFIG_ARCH_R8A774A1
322 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
323#endif
324#ifdef CONFIG_ARCH_R8A774B1
325 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
326#endif
327#ifdef CONFIG_ARCH_R8A774C0
328 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
329#endif
330#ifdef CONFIG_ARCH_R8A774E1
331 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
332#endif
333#ifdef CONFIG_ARCH_R8A7778
334 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
335#endif
336#ifdef CONFIG_ARCH_R8A7779
337 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
338#endif
339#ifdef CONFIG_ARCH_R8A7790
340 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
341#endif
342#ifdef CONFIG_ARCH_R8A7791
343 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
344#endif
345#ifdef CONFIG_ARCH_R8A7792
346 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
347#endif
348#ifdef CONFIG_ARCH_R8A7793
349 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
350#endif
351#ifdef CONFIG_ARCH_R8A7794
352 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
353#endif
354#ifdef CONFIG_ARCH_R8A77951
355 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
356 { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 },
357 { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 },
358 { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 },
359 { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 },
360#endif
361#ifdef CONFIG_ARCH_R8A77960
362 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
363#endif
364#ifdef CONFIG_ARCH_R8A77961
365 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
366 { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w },
367 { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w },
368#endif
369#ifdef CONFIG_ARCH_R8A77965
370 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
371 { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n },
372 { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n },
373#endif
374#ifdef CONFIG_ARCH_R8A77970
375 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
376#endif
377#ifdef CONFIG_ARCH_R8A77980
378 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
379#endif
380#ifdef CONFIG_ARCH_R8A77990
381 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
382 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
383#endif
384#ifdef CONFIG_ARCH_R8A77995
385 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
386 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
387#endif
388#ifdef CONFIG_ARCH_R8A779A0
389 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
390#endif
391#ifdef CONFIG_ARCH_R8A779F0
392 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
393#endif
394#ifdef CONFIG_ARCH_R8A779G0
395 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
396#endif
397#ifdef CONFIG_ARCH_R8A779H0
398 { .compatible = "renesas,r8a779h0", .data = &soc_rcar_v4m },
399#endif
400#ifdef CONFIG_ARCH_R9A07G043
401#ifdef CONFIG_RISCV
402 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
403#else
404 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
405#endif
406#endif
407#ifdef CONFIG_ARCH_R9A07G044
408 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
409#endif
410#ifdef CONFIG_ARCH_R9A07G054
411 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
412#endif
413#ifdef CONFIG_ARCH_R9A08G045
414 { .compatible = "renesas,r9a08g045", .data = &soc_rz_g3s },
415#endif
416#ifdef CONFIG_ARCH_R9A09G011
417 { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m },
418#endif
419#ifdef CONFIG_ARCH_R9A09G057
420 { .compatible = "renesas,r9a09g057", .data = &soc_rz_v2h },
421#endif
422#ifdef CONFIG_ARCH_SH73A0
423 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
424#endif
425 { /* sentinel */ }
426};
427
428struct renesas_id {
429 unsigned int offset;
430 u32 mask;
431};
432
433static const struct renesas_id id_bsid __initconst = {
434 .offset = 0,
435 .mask = 0xff0000,
436 /*
437 * TODO: Upper 4 bits of BSID are for chip version, but the format is
438 * not known at this time so we don't know how to specify eshi and eslo
439 */
440};
441
442static const struct renesas_id id_rzg2l __initconst = {
443 .offset = 0xa04,
444 .mask = 0xfffffff,
445};
446
447static const struct renesas_id id_rzv2h __initconst = {
448 .offset = 0x304,
449 .mask = 0xfffffff,
450};
451
452static const struct renesas_id id_rzv2m __initconst = {
453 .offset = 0x104,
454 .mask = 0xff,
455};
456
457static const struct renesas_id id_prr __initconst = {
458 .offset = 0,
459 .mask = 0xff00,
460};
461
462static const struct of_device_id renesas_ids[] __initconst = {
463 { .compatible = "renesas,bsid", .data = &id_bsid },
464 { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l },
465 { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l },
466 { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l },
467 { .compatible = "renesas,r9a08g045-sysc", .data = &id_rzg2l },
468 { .compatible = "renesas,r9a09g011-sys", .data = &id_rzv2m },
469 { .compatible = "renesas,r9a09g057-sys", .data = &id_rzv2h },
470 { .compatible = "renesas,prr", .data = &id_prr },
471 { /* sentinel */ }
472};
473
474static int __init renesas_soc_init(void)
475{
476 struct soc_device_attribute *soc_dev_attr;
477 unsigned int product, eshi = 0, eslo;
478 const struct renesas_family *family;
479 const struct of_device_id *match;
480 const struct renesas_soc *soc;
481 const struct renesas_id *id;
482 void __iomem *chipid = NULL;
483 const char *rev_prefix = "";
484 struct soc_device *soc_dev;
485 struct device_node *np;
486 const char *soc_id;
487 int ret;
488
489 match = of_match_node(renesas_socs, of_root);
490 if (!match)
491 return -ENODEV;
492
493 soc_id = strchr(match->compatible, ',') + 1;
494 soc = match->data;
495 family = soc->family;
496
497 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
498 if (np) {
499 id = match->data;
500 chipid = of_iomap(np, 0);
501 of_node_put(np);
502 } else if (soc->id && family->reg) {
503 /* Try hardcoded CCCR/PRR fallback */
504 id = &id_prr;
505 chipid = ioremap(family->reg, 4);
506 }
507
508 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
509 if (!soc_dev_attr) {
510 if (chipid)
511 iounmap(chipid);
512 return -ENOMEM;
513 }
514
515 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
516 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
517
518 if (chipid) {
519 product = readl(chipid + id->offset);
520 iounmap(chipid);
521
522 if (id == &id_prr) {
523 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
524 if ((product & 0x7fff) == 0x5210)
525 product ^= 0x11;
526 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
527 if ((product & 0x7fff) == 0x5211)
528 product ^= 0x12;
529
530 eshi = ((product >> 4) & 0x0f) + 1;
531 eslo = product & 0xf;
532 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
533 eshi, eslo);
534 } else if (id == &id_rzg2l || id == &id_rzv2h) {
535 eshi = ((product >> 28) & 0x0f);
536 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
537 eshi);
538 rev_prefix = "Rev ";
539 } else if (id == &id_rzv2m) {
540 eshi = ((product >> 4) & 0x0f);
541 eslo = product & 0xf;
542 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u",
543 eshi, eslo);
544 }
545
546 if (soc->id &&
547 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
548 pr_warn("SoC mismatch (product = 0x%x)\n", product);
549 ret = -ENODEV;
550 goto free_soc_dev_attr;
551 }
552 }
553
554 pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
555 soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
556
557 soc_dev = soc_device_register(soc_dev_attr);
558 if (IS_ERR(soc_dev)) {
559 ret = PTR_ERR(soc_dev);
560 goto free_soc_dev_attr;
561 }
562
563 return 0;
564
565free_soc_dev_attr:
566 kfree(soc_dev_attr->revision);
567 kfree_const(soc_dev_attr->soc_id);
568 kfree_const(soc_dev_attr->family);
569 kfree(soc_dev_attr);
570 return ret;
571}
572early_initcall(renesas_soc_init);