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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
15
16struct renesas_family {
17 const char name[16];
18 u32 reg; /* CCCR or PRR, if not in DT */
19};
20
21static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
22 .name = "R-Car Gen1",
23 .reg = 0xff000044, /* PRR (Product Register) */
24};
25
26static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
27 .name = "R-Car Gen2",
28 .reg = 0xff000044, /* PRR (Product Register) */
29};
30
31static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
32 .name = "R-Car Gen3",
33 .reg = 0xfff00044, /* PRR (Product Register) */
34};
35
36static const struct renesas_family fam_rcar_gen4 __initconst __maybe_unused = {
37 .name = "R-Car Gen4",
38};
39
40static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
41 .name = "R-Mobile",
42 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
43};
44
45static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
46 .name = "RZ/A1",
47};
48
49static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
50 .name = "RZ/A2",
51};
52
53static const struct renesas_family fam_rzfive __initconst __maybe_unused = {
54 .name = "RZ/Five",
55};
56
57static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
58 .name = "RZ/G1",
59 .reg = 0xff000044, /* PRR (Product Register) */
60};
61
62static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
63 .name = "RZ/G2",
64 .reg = 0xfff00044, /* PRR (Product Register) */
65};
66
67static const struct renesas_family fam_rzg2l __initconst __maybe_unused = {
68 .name = "RZ/G2L",
69};
70
71static const struct renesas_family fam_rzg2ul __initconst __maybe_unused = {
72 .name = "RZ/G2UL",
73};
74
75static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
76 .name = "RZ/V2L",
77};
78
79static const struct renesas_family fam_rzv2m __initconst __maybe_unused = {
80 .name = "RZ/V2M",
81};
82
83static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
84 .name = "SH-Mobile",
85 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
86};
87
88
89struct renesas_soc {
90 const struct renesas_family *family;
91 u32 id;
92};
93
94static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
95 .family = &fam_rza1,
96};
97
98static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
99 .family = &fam_rza2,
100 .id = 0x3b,
101};
102
103static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
104 .family = &fam_rmobile,
105 .id = 0x3f,
106};
107
108static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
109 .family = &fam_rmobile,
110 .id = 0x40,
111};
112
113static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
114 .family = &fam_rzfive,
115 .id = 0x847c447,
116};
117
118static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
119 .family = &fam_rzg1,
120 .id = 0x45,
121};
122
123static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
124 .family = &fam_rzg1,
125 .id = 0x47,
126};
127
128static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
129 .family = &fam_rzg1,
130 .id = 0x4b,
131};
132
133static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
134 .family = &fam_rzg1,
135 .id = 0x4c,
136};
137
138static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
139 .family = &fam_rzg1,
140 .id = 0x53,
141};
142
143static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
144 .family = &fam_rzg2,
145 .id = 0x52,
146};
147
148static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
149 .family = &fam_rzg2,
150 .id = 0x55,
151};
152
153static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
154 .family = &fam_rzg2,
155 .id = 0x57,
156};
157
158static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
159 .family = &fam_rzg2,
160 .id = 0x4f,
161};
162
163static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
164 .family = &fam_rzg2l,
165 .id = 0x841c447,
166};
167
168static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = {
169 .family = &fam_rzg2ul,
170 .id = 0x8450447,
171};
172
173static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
174 .family = &fam_rzv2l,
175 .id = 0x8447447,
176};
177
178static const struct renesas_soc soc_rz_v2m __initconst __maybe_unused = {
179 .family = &fam_rzv2m,
180};
181
182static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
183 .family = &fam_rcar_gen1,
184};
185
186static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
187 .family = &fam_rcar_gen1,
188 .id = 0x3b,
189};
190
191static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
192 .family = &fam_rcar_gen2,
193 .id = 0x45,
194};
195
196static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
197 .family = &fam_rcar_gen2,
198 .id = 0x47,
199};
200
201static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
202 .family = &fam_rcar_gen2,
203 .id = 0x4a,
204};
205
206static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
207 .family = &fam_rcar_gen2,
208 .id = 0x4b,
209};
210
211static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
212 .family = &fam_rcar_gen2,
213 .id = 0x4c,
214};
215
216static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
217 .family = &fam_rcar_gen3,
218 .id = 0x4f,
219};
220
221static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
222 .family = &fam_rcar_gen3,
223 .id = 0x52,
224};
225
226static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
227 .family = &fam_rcar_gen3,
228 .id = 0x55,
229};
230
231static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
232 .family = &fam_rcar_gen3,
233 .id = 0x54,
234};
235
236static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
237 .family = &fam_rcar_gen3,
238 .id = 0x56,
239};
240
241static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
242 .family = &fam_rcar_gen3,
243 .id = 0x57,
244};
245
246static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
247 .family = &fam_rcar_gen3,
248 .id = 0x58,
249};
250
251static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = {
252 .family = &fam_rcar_gen4,
253 .id = 0x59,
254};
255
256static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = {
257 .family = &fam_rcar_gen4,
258 .id = 0x5a,
259};
260
261static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = {
262 .family = &fam_rcar_gen4,
263 .id = 0x5c,
264};
265
266static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
267 .family = &fam_shmobile,
268 .id = 0x37,
269};
270
271
272static const struct of_device_id renesas_socs[] __initconst = {
273#ifdef CONFIG_ARCH_R7S72100
274 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
275#endif
276#ifdef CONFIG_ARCH_R7S9210
277 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
278#endif
279#ifdef CONFIG_ARCH_R8A73A4
280 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
281#endif
282#ifdef CONFIG_ARCH_R8A7740
283 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
284#endif
285#ifdef CONFIG_ARCH_R8A7742
286 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
287#endif
288#ifdef CONFIG_ARCH_R8A7743
289 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
290#endif
291#ifdef CONFIG_ARCH_R8A7744
292 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
293#endif
294#ifdef CONFIG_ARCH_R8A7745
295 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
296#endif
297#ifdef CONFIG_ARCH_R8A77470
298 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
299#endif
300#ifdef CONFIG_ARCH_R8A774A1
301 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
302#endif
303#ifdef CONFIG_ARCH_R8A774B1
304 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
305#endif
306#ifdef CONFIG_ARCH_R8A774C0
307 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
308#endif
309#ifdef CONFIG_ARCH_R8A774E1
310 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
311#endif
312#ifdef CONFIG_ARCH_R8A7778
313 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
314#endif
315#ifdef CONFIG_ARCH_R8A7779
316 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
317#endif
318#ifdef CONFIG_ARCH_R8A7790
319 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
320#endif
321#ifdef CONFIG_ARCH_R8A7791
322 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
323#endif
324#ifdef CONFIG_ARCH_R8A7792
325 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
326#endif
327#ifdef CONFIG_ARCH_R8A7793
328 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
329#endif
330#ifdef CONFIG_ARCH_R8A7794
331 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
332#endif
333#if defined(CONFIG_ARCH_R8A77950) || defined(CONFIG_ARCH_R8A77951)
334 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
335#endif
336#ifdef CONFIG_ARCH_R8A77951
337 { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 },
338 { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 },
339 { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 },
340 { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 },
341#endif
342#ifdef CONFIG_ARCH_R8A77960
343 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
344#endif
345#ifdef CONFIG_ARCH_R8A77961
346 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
347 { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w },
348 { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w },
349#endif
350#ifdef CONFIG_ARCH_R8A77965
351 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
352 { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n },
353 { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n },
354#endif
355#ifdef CONFIG_ARCH_R8A77970
356 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
357#endif
358#ifdef CONFIG_ARCH_R8A77980
359 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
360#endif
361#ifdef CONFIG_ARCH_R8A77990
362 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
363 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
364#endif
365#ifdef CONFIG_ARCH_R8A77995
366 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
367 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
368#endif
369#ifdef CONFIG_ARCH_R8A779A0
370 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
371#endif
372#ifdef CONFIG_ARCH_R8A779F0
373 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
374#endif
375#ifdef CONFIG_ARCH_R8A779G0
376 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
377#endif
378#if defined(CONFIG_ARCH_R9A07G043)
379#ifdef CONFIG_RISCV
380 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
381#else
382 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
383#endif
384#endif
385#if defined(CONFIG_ARCH_R9A07G044)
386 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
387#endif
388#if defined(CONFIG_ARCH_R9A07G054)
389 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
390#endif
391#if defined(CONFIG_ARCH_R9A09G011)
392 { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m },
393#endif
394#ifdef CONFIG_ARCH_SH73A0
395 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
396#endif
397 { /* sentinel */ }
398};
399
400struct renesas_id {
401 unsigned int offset;
402 u32 mask;
403};
404
405static const struct renesas_id id_bsid __initconst = {
406 .offset = 0,
407 .mask = 0xff0000,
408 /*
409 * TODO: Upper 4 bits of BSID are for chip version, but the format is
410 * not known at this time so we don't know how to specify eshi and eslo
411 */
412};
413
414static const struct renesas_id id_rzg2l __initconst = {
415 .offset = 0xa04,
416 .mask = 0xfffffff,
417};
418
419static const struct renesas_id id_rzv2m __initconst = {
420 .offset = 0x104,
421 .mask = 0xff,
422};
423
424static const struct renesas_id id_prr __initconst = {
425 .offset = 0,
426 .mask = 0xff00,
427};
428
429static const struct of_device_id renesas_ids[] __initconst = {
430 { .compatible = "renesas,bsid", .data = &id_bsid },
431 { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l },
432 { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l },
433 { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l },
434 { .compatible = "renesas,r9a09g011-sys", .data = &id_rzv2m },
435 { .compatible = "renesas,prr", .data = &id_prr },
436 { /* sentinel */ }
437};
438
439static int __init renesas_soc_init(void)
440{
441 struct soc_device_attribute *soc_dev_attr;
442 unsigned int product, eshi = 0, eslo;
443 const struct renesas_family *family;
444 const struct of_device_id *match;
445 const struct renesas_soc *soc;
446 const struct renesas_id *id;
447 void __iomem *chipid = NULL;
448 const char *rev_prefix = "";
449 struct soc_device *soc_dev;
450 struct device_node *np;
451 const char *soc_id;
452 int ret;
453
454 match = of_match_node(renesas_socs, of_root);
455 if (!match)
456 return -ENODEV;
457
458 soc_id = strchr(match->compatible, ',') + 1;
459 soc = match->data;
460 family = soc->family;
461
462 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
463 if (np) {
464 id = match->data;
465 chipid = of_iomap(np, 0);
466 of_node_put(np);
467 } else if (soc->id && family->reg) {
468 /* Try hardcoded CCCR/PRR fallback */
469 id = &id_prr;
470 chipid = ioremap(family->reg, 4);
471 }
472
473 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
474 if (!soc_dev_attr)
475 return -ENOMEM;
476
477 np = of_find_node_by_path("/");
478 of_property_read_string(np, "model", &soc_dev_attr->machine);
479 of_node_put(np);
480
481 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
482 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
483
484 if (chipid) {
485 product = readl(chipid + id->offset);
486 iounmap(chipid);
487
488 if (id == &id_prr) {
489 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
490 if ((product & 0x7fff) == 0x5210)
491 product ^= 0x11;
492 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
493 if ((product & 0x7fff) == 0x5211)
494 product ^= 0x12;
495
496 eshi = ((product >> 4) & 0x0f) + 1;
497 eslo = product & 0xf;
498 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
499 eshi, eslo);
500 } else if (id == &id_rzg2l) {
501 eshi = ((product >> 28) & 0x0f);
502 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
503 eshi);
504 rev_prefix = "Rev ";
505 } else if (id == &id_rzv2m) {
506 eshi = ((product >> 4) & 0x0f);
507 eslo = product & 0xf;
508 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u",
509 eshi, eslo);
510 }
511
512 if (soc->id &&
513 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
514 pr_warn("SoC mismatch (product = 0x%x)\n", product);
515 ret = -ENODEV;
516 goto free_soc_dev_attr;
517 }
518 }
519
520 pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
521 soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
522
523 soc_dev = soc_device_register(soc_dev_attr);
524 if (IS_ERR(soc_dev)) {
525 ret = PTR_ERR(soc_dev);
526 goto free_soc_dev_attr;
527 }
528
529 return 0;
530
531free_soc_dev_attr:
532 kfree(soc_dev_attr->revision);
533 kfree_const(soc_dev_attr->soc_id);
534 kfree_const(soc_dev_attr->family);
535 kfree(soc_dev_attr);
536 return ret;
537}
538early_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
15
16struct renesas_family {
17 const char name[16];
18 u32 reg; /* CCCR or PRR, if not in DT */
19};
20
21static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
22 .name = "R-Car Gen1",
23 .reg = 0xff000044, /* PRR (Product Register) */
24};
25
26static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
27 .name = "R-Car Gen2",
28 .reg = 0xff000044, /* PRR (Product Register) */
29};
30
31static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
32 .name = "R-Car Gen3",
33 .reg = 0xfff00044, /* PRR (Product Register) */
34};
35
36static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
37 .name = "R-Mobile",
38 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
39};
40
41static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
42 .name = "RZ/A1",
43};
44
45static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
46 .name = "RZ/A2",
47};
48
49static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
50 .name = "RZ/G1",
51 .reg = 0xff000044, /* PRR (Product Register) */
52};
53
54static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
55 .name = "RZ/G2",
56 .reg = 0xfff00044, /* PRR (Product Register) */
57};
58
59static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
60 .name = "SH-Mobile",
61 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
62};
63
64
65struct renesas_soc {
66 const struct renesas_family *family;
67 u8 id;
68};
69
70static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
71 .family = &fam_rza1,
72};
73
74static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
75 .family = &fam_rza2,
76 .id = 0x3b,
77};
78
79static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
80 .family = &fam_rmobile,
81 .id = 0x3f,
82};
83
84static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
85 .family = &fam_rmobile,
86 .id = 0x40,
87};
88
89static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
90 .family = &fam_rzg1,
91 .id = 0x45,
92};
93
94static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
95 .family = &fam_rzg1,
96 .id = 0x47,
97};
98
99static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
100 .family = &fam_rzg1,
101 .id = 0x4b,
102};
103
104static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
105 .family = &fam_rzg1,
106 .id = 0x4c,
107};
108
109static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
110 .family = &fam_rzg1,
111 .id = 0x53,
112};
113
114static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
115 .family = &fam_rzg2,
116 .id = 0x52,
117};
118
119static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
120 .family = &fam_rzg2,
121 .id = 0x55,
122};
123
124static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
125 .family = &fam_rzg2,
126 .id = 0x57,
127};
128
129static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
130 .family = &fam_rzg2,
131 .id = 0x4f,
132};
133
134static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
135 .family = &fam_rcar_gen1,
136};
137
138static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
139 .family = &fam_rcar_gen1,
140 .id = 0x3b,
141};
142
143static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
144 .family = &fam_rcar_gen2,
145 .id = 0x45,
146};
147
148static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
149 .family = &fam_rcar_gen2,
150 .id = 0x47,
151};
152
153static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
154 .family = &fam_rcar_gen2,
155 .id = 0x4a,
156};
157
158static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
159 .family = &fam_rcar_gen2,
160 .id = 0x4b,
161};
162
163static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
164 .family = &fam_rcar_gen2,
165 .id = 0x4c,
166};
167
168static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
169 .family = &fam_rcar_gen3,
170 .id = 0x4f,
171};
172
173static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
174 .family = &fam_rcar_gen3,
175 .id = 0x52,
176};
177
178static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
179 .family = &fam_rcar_gen3,
180 .id = 0x55,
181};
182
183static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
184 .family = &fam_rcar_gen3,
185 .id = 0x54,
186};
187
188static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
189 .family = &fam_rcar_gen3,
190 .id = 0x56,
191};
192
193static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
194 .family = &fam_rcar_gen3,
195 .id = 0x57,
196};
197
198static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
199 .family = &fam_rcar_gen3,
200 .id = 0x58,
201};
202
203static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
204 .family = &fam_shmobile,
205 .id = 0x37,
206};
207
208
209static const struct of_device_id renesas_socs[] __initconst = {
210#ifdef CONFIG_ARCH_R7S72100
211 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
212#endif
213#ifdef CONFIG_ARCH_R7S9210
214 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
215#endif
216#ifdef CONFIG_ARCH_R8A73A4
217 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
218#endif
219#ifdef CONFIG_ARCH_R8A7740
220 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
221#endif
222#ifdef CONFIG_ARCH_R8A7742
223 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
224#endif
225#ifdef CONFIG_ARCH_R8A7743
226 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
227#endif
228#ifdef CONFIG_ARCH_R8A7744
229 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
230#endif
231#ifdef CONFIG_ARCH_R8A7745
232 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
233#endif
234#ifdef CONFIG_ARCH_R8A77470
235 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
236#endif
237#ifdef CONFIG_ARCH_R8A774A1
238 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
239#endif
240#ifdef CONFIG_ARCH_R8A774B1
241 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
242#endif
243#ifdef CONFIG_ARCH_R8A774C0
244 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
245#endif
246#ifdef CONFIG_ARCH_R8A774E1
247 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
248#endif
249#ifdef CONFIG_ARCH_R8A7778
250 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
251#endif
252#ifdef CONFIG_ARCH_R8A7779
253 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
254#endif
255#ifdef CONFIG_ARCH_R8A7790
256 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
257#endif
258#ifdef CONFIG_ARCH_R8A7791
259 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
260#endif
261#ifdef CONFIG_ARCH_R8A7792
262 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
263#endif
264#ifdef CONFIG_ARCH_R8A7793
265 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
266#endif
267#ifdef CONFIG_ARCH_R8A7794
268 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
269#endif
270#if defined(CONFIG_ARCH_R8A77950) || defined(CONFIG_ARCH_R8A77951)
271 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
272#endif
273#ifdef CONFIG_ARCH_R8A77960
274 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
275#endif
276#ifdef CONFIG_ARCH_R8A77961
277 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
278#endif
279#ifdef CONFIG_ARCH_R8A77965
280 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
281#endif
282#ifdef CONFIG_ARCH_R8A77970
283 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
284#endif
285#ifdef CONFIG_ARCH_R8A77980
286 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
287#endif
288#ifdef CONFIG_ARCH_R8A77990
289 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
290#endif
291#ifdef CONFIG_ARCH_R8A77995
292 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
293#endif
294#ifdef CONFIG_ARCH_SH73A0
295 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
296#endif
297 { /* sentinel */ }
298};
299
300static int __init renesas_soc_init(void)
301{
302 struct soc_device_attribute *soc_dev_attr;
303 const struct renesas_family *family;
304 const struct of_device_id *match;
305 const struct renesas_soc *soc;
306 void __iomem *chipid = NULL;
307 struct soc_device *soc_dev;
308 struct device_node *np;
309 unsigned int product, eshi = 0, eslo;
310
311 match = of_match_node(renesas_socs, of_root);
312 if (!match)
313 return -ENODEV;
314
315 soc = match->data;
316 family = soc->family;
317
318 np = of_find_compatible_node(NULL, NULL, "renesas,bsid");
319 if (np) {
320 chipid = of_iomap(np, 0);
321 of_node_put(np);
322
323 if (chipid) {
324 product = readl(chipid);
325 iounmap(chipid);
326
327 if (soc->id && ((product >> 16) & 0xff) != soc->id) {
328 pr_warn("SoC mismatch (product = 0x%x)\n",
329 product);
330 return -ENODEV;
331 }
332 }
333
334 /*
335 * TODO: Upper 4 bits of BSID are for chip version, but the
336 * format is not known at this time so we don't know how to
337 * specify eshi and eslo
338 */
339
340 goto done;
341 }
342
343 /* Try PRR first, then hardcoded fallback */
344 np = of_find_compatible_node(NULL, NULL, "renesas,prr");
345 if (np) {
346 chipid = of_iomap(np, 0);
347 of_node_put(np);
348 } else if (soc->id && family->reg) {
349 chipid = ioremap(family->reg, 4);
350 }
351 if (chipid) {
352 product = readl(chipid);
353 iounmap(chipid);
354 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
355 if ((product & 0x7fff) == 0x5210)
356 product ^= 0x11;
357 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
358 if ((product & 0x7fff) == 0x5211)
359 product ^= 0x12;
360 if (soc->id && ((product >> 8) & 0xff) != soc->id) {
361 pr_warn("SoC mismatch (product = 0x%x)\n", product);
362 return -ENODEV;
363 }
364 eshi = ((product >> 4) & 0x0f) + 1;
365 eslo = product & 0xf;
366 }
367
368done:
369 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
370 if (!soc_dev_attr)
371 return -ENOMEM;
372
373 np = of_find_node_by_path("/");
374 of_property_read_string(np, "model", &soc_dev_attr->machine);
375 of_node_put(np);
376
377 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
378 soc_dev_attr->soc_id = kstrdup_const(strchr(match->compatible, ',') + 1,
379 GFP_KERNEL);
380 if (eshi)
381 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", eshi,
382 eslo);
383
384 pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family,
385 soc_dev_attr->soc_id, soc_dev_attr->revision ?: "");
386
387 soc_dev = soc_device_register(soc_dev_attr);
388 if (IS_ERR(soc_dev)) {
389 kfree(soc_dev_attr->revision);
390 kfree_const(soc_dev_attr->soc_id);
391 kfree_const(soc_dev_attr->family);
392 kfree(soc_dev_attr);
393 return PTR_ERR(soc_dev);
394 }
395
396 return 0;
397}
398early_initcall(renesas_soc_init);