1 // SPDX-License-Identifier: GPL-2.0
3 * Renesas SoC Identification
5 * Copyright (C) 2014-2016 Glider bvba
10 #include <linux/of_address.h>
11 #include <linux/slab.h>
12 #include <linux/string.h>
13 #include <linux/sys_soc.h>
15 struct renesas_family {
17 u32 reg; /* CCCR or PRR, if not in DT */
20 static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
22 .reg = 0xff000044, /* PRR (Product Register) */
25 static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
27 .reg = 0xff000044, /* PRR (Product Register) */
30 static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
32 .reg = 0xfff00044, /* PRR (Product Register) */
35 static const struct renesas_family fam_rcar_gen4 __initconst __maybe_unused = {
39 static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
41 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
44 static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
48 static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
52 static const struct renesas_family fam_rzfive __initconst __maybe_unused = {
56 static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
58 .reg = 0xff000044, /* PRR (Product Register) */
61 static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
63 .reg = 0xfff00044, /* PRR (Product Register) */
66 static const struct renesas_family fam_rzg2l __initconst __maybe_unused = {
70 static const struct renesas_family fam_rzg2ul __initconst __maybe_unused = {
74 static const struct renesas_family fam_rzg3s __initconst __maybe_unused = {
78 static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
82 static const struct renesas_family fam_rzv2m __initconst __maybe_unused = {
86 static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
88 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
92 const struct renesas_family *family;
96 static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
100 static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
105 static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
106 .family = &fam_rmobile,
110 static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
111 .family = &fam_rmobile,
115 static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
116 .family = &fam_rzfive,
120 static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
125 static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
130 static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
135 static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
140 static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
145 static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
150 static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
155 static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
160 static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
165 static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
166 .family = &fam_rzg2l,
170 static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = {
171 .family = &fam_rzg2ul,
175 static const struct renesas_soc soc_rz_g3s __initconst __maybe_unused = {
176 .family = &fam_rzg3s,
180 static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
181 .family = &fam_rzv2l,
185 static const struct renesas_soc soc_rz_v2m __initconst __maybe_unused = {
186 .family = &fam_rzv2m,
189 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
190 .family = &fam_rcar_gen1,
193 static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
194 .family = &fam_rcar_gen1,
198 static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
199 .family = &fam_rcar_gen2,
203 static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
204 .family = &fam_rcar_gen2,
208 static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
209 .family = &fam_rcar_gen2,
213 static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
214 .family = &fam_rcar_gen2,
218 static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
219 .family = &fam_rcar_gen2,
223 static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
224 .family = &fam_rcar_gen3,
228 static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
229 .family = &fam_rcar_gen3,
233 static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
234 .family = &fam_rcar_gen3,
238 static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
239 .family = &fam_rcar_gen3,
243 static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
244 .family = &fam_rcar_gen3,
248 static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
249 .family = &fam_rcar_gen3,
253 static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
254 .family = &fam_rcar_gen3,
258 static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = {
259 .family = &fam_rcar_gen4,
263 static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = {
264 .family = &fam_rcar_gen4,
268 static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = {
269 .family = &fam_rcar_gen4,
273 static const struct renesas_soc soc_rcar_v4m __initconst __maybe_unused = {
274 .family = &fam_rcar_gen4,
278 static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
279 .family = &fam_shmobile,
284 static const struct of_device_id renesas_socs[] __initconst __maybe_unused = {
285 #ifdef CONFIG_ARCH_R7S72100
286 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
288 #ifdef CONFIG_ARCH_R7S9210
289 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
291 #ifdef CONFIG_ARCH_R8A73A4
292 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
294 #ifdef CONFIG_ARCH_R8A7740
295 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
297 #ifdef CONFIG_ARCH_R8A7742
298 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
300 #ifdef CONFIG_ARCH_R8A7743
301 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
303 #ifdef CONFIG_ARCH_R8A7744
304 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
306 #ifdef CONFIG_ARCH_R8A7745
307 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
309 #ifdef CONFIG_ARCH_R8A77470
310 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
312 #ifdef CONFIG_ARCH_R8A774A1
313 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
315 #ifdef CONFIG_ARCH_R8A774B1
316 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
318 #ifdef CONFIG_ARCH_R8A774C0
319 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
321 #ifdef CONFIG_ARCH_R8A774E1
322 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
324 #ifdef CONFIG_ARCH_R8A7778
325 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
327 #ifdef CONFIG_ARCH_R8A7779
328 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
330 #ifdef CONFIG_ARCH_R8A7790
331 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
333 #ifdef CONFIG_ARCH_R8A7791
334 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
336 #ifdef CONFIG_ARCH_R8A7792
337 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
339 #ifdef CONFIG_ARCH_R8A7793
340 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
342 #ifdef CONFIG_ARCH_R8A7794
343 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
345 #ifdef CONFIG_ARCH_R8A77951
346 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
347 { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 },
348 { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 },
349 { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 },
350 { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 },
352 #ifdef CONFIG_ARCH_R8A77960
353 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
355 #ifdef CONFIG_ARCH_R8A77961
356 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
357 { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w },
358 { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w },
360 #ifdef CONFIG_ARCH_R8A77965
361 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
362 { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n },
363 { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n },
365 #ifdef CONFIG_ARCH_R8A77970
366 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
368 #ifdef CONFIG_ARCH_R8A77980
369 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
371 #ifdef CONFIG_ARCH_R8A77990
372 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
373 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
375 #ifdef CONFIG_ARCH_R8A77995
376 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
377 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
379 #ifdef CONFIG_ARCH_R8A779A0
380 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
382 #ifdef CONFIG_ARCH_R8A779F0
383 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
385 #ifdef CONFIG_ARCH_R8A779G0
386 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
388 #ifdef CONFIG_ARCH_R8A779H0
389 { .compatible = "renesas,r8a779h0", .data = &soc_rcar_v4m },
391 #ifdef CONFIG_ARCH_R9A07G043
393 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
395 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
398 #ifdef CONFIG_ARCH_R9A07G044
399 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
401 #ifdef CONFIG_ARCH_R9A07G054
402 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
404 #ifdef CONFIG_ARCH_R9A08G045
405 { .compatible = "renesas,r9a08g045", .data = &soc_rz_g3s },
407 #ifdef CONFIG_ARCH_R9A09G011
408 { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m },
410 #ifdef CONFIG_ARCH_SH73A0
411 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
421 static const struct renesas_id id_bsid __initconst = {
425 * TODO: Upper 4 bits of BSID are for chip version, but the format is
426 * not known at this time so we don't know how to specify eshi and eslo
430 static const struct renesas_id id_rzg2l __initconst = {
435 static const struct renesas_id id_rzv2m __initconst = {
440 static const struct renesas_id id_prr __initconst = {
445 static const struct of_device_id renesas_ids[] __initconst = {
446 { .compatible = "renesas,bsid", .data = &id_bsid },
447 { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l },
448 { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l },
449 { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l },
450 { .compatible = "renesas,r9a08g045-sysc", .data = &id_rzg2l },
451 { .compatible = "renesas,r9a09g011-sys", .data = &id_rzv2m },
452 { .compatible = "renesas,prr", .data = &id_prr },
456 static int __init renesas_soc_init(void)
458 struct soc_device_attribute *soc_dev_attr;
459 unsigned int product, eshi = 0, eslo;
460 const struct renesas_family *family;
461 const struct of_device_id *match;
462 const struct renesas_soc *soc;
463 const struct renesas_id *id;
464 void __iomem *chipid = NULL;
465 const char *rev_prefix = "";
466 struct soc_device *soc_dev;
467 struct device_node *np;
471 match = of_match_node(renesas_socs, of_root);
475 soc_id = strchr(match->compatible, ',') + 1;
477 family = soc->family;
479 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
482 chipid = of_iomap(np, 0);
484 } else if (soc->id && family->reg) {
485 /* Try hardcoded CCCR/PRR fallback */
487 chipid = ioremap(family->reg, 4);
490 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
497 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
498 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
501 product = readl(chipid + id->offset);
505 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
506 if ((product & 0x7fff) == 0x5210)
508 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
509 if ((product & 0x7fff) == 0x5211)
512 eshi = ((product >> 4) & 0x0f) + 1;
513 eslo = product & 0xf;
514 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
516 } else if (id == &id_rzg2l) {
517 eshi = ((product >> 28) & 0x0f);
518 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
521 } else if (id == &id_rzv2m) {
522 eshi = ((product >> 4) & 0x0f);
523 eslo = product & 0xf;
524 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u",
529 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
530 pr_warn("SoC mismatch (product = 0x%x)\n", product);
532 goto free_soc_dev_attr;
536 pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
537 soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
539 soc_dev = soc_device_register(soc_dev_attr);
540 if (IS_ERR(soc_dev)) {
541 ret = PTR_ERR(soc_dev);
542 goto free_soc_dev_attr;
548 kfree(soc_dev_attr->revision);
549 kfree_const(soc_dev_attr->soc_id);
550 kfree_const(soc_dev_attr->family);
554 early_initcall(renesas_soc_init);