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>
16 struct renesas_family {
18 u32 reg; /* CCCR or PRR, if not in DT */
21 static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
23 .reg = 0xff000044, /* PRR (Product Register) */
26 static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
28 .reg = 0xff000044, /* PRR (Product Register) */
31 static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
33 .reg = 0xfff00044, /* PRR (Product Register) */
36 static const struct renesas_family fam_rcar_gen4 __initconst __maybe_unused = {
40 static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
42 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
45 static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
49 static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
53 static const struct renesas_family fam_rzfive __initconst __maybe_unused = {
57 static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
59 .reg = 0xff000044, /* PRR (Product Register) */
62 static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
64 .reg = 0xfff00044, /* PRR (Product Register) */
67 static const struct renesas_family fam_rzg2l __initconst __maybe_unused = {
71 static const struct renesas_family fam_rzg2ul __initconst __maybe_unused = {
75 static const struct renesas_family fam_rzv2l __initconst __maybe_unused = {
79 static const struct renesas_family fam_rzv2m __initconst __maybe_unused = {
83 static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
85 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
90 const struct renesas_family *family;
94 static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
98 static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
103 static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
104 .family = &fam_rmobile,
108 static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
109 .family = &fam_rmobile,
113 static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
114 .family = &fam_rzfive,
118 static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
123 static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
128 static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
133 static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
138 static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
143 static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
148 static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
153 static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
158 static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
163 static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
164 .family = &fam_rzg2l,
168 static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = {
169 .family = &fam_rzg2ul,
173 static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
174 .family = &fam_rzv2l,
178 static const struct renesas_soc soc_rz_v2m __initconst __maybe_unused = {
179 .family = &fam_rzv2m,
182 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
183 .family = &fam_rcar_gen1,
186 static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
187 .family = &fam_rcar_gen1,
191 static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
192 .family = &fam_rcar_gen2,
196 static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
197 .family = &fam_rcar_gen2,
201 static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
202 .family = &fam_rcar_gen2,
206 static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
207 .family = &fam_rcar_gen2,
211 static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
212 .family = &fam_rcar_gen2,
216 static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
217 .family = &fam_rcar_gen3,
221 static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
222 .family = &fam_rcar_gen3,
226 static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
227 .family = &fam_rcar_gen3,
231 static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
232 .family = &fam_rcar_gen3,
236 static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
237 .family = &fam_rcar_gen3,
241 static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
242 .family = &fam_rcar_gen3,
246 static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
247 .family = &fam_rcar_gen3,
251 static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = {
252 .family = &fam_rcar_gen4,
256 static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = {
257 .family = &fam_rcar_gen4,
261 static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = {
262 .family = &fam_rcar_gen4,
266 static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
267 .family = &fam_shmobile,
272 static const struct of_device_id renesas_socs[] __initconst = {
273 #ifdef CONFIG_ARCH_R7S72100
274 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
276 #ifdef CONFIG_ARCH_R7S9210
277 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
279 #ifdef CONFIG_ARCH_R8A73A4
280 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
282 #ifdef CONFIG_ARCH_R8A7740
283 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
285 #ifdef CONFIG_ARCH_R8A7742
286 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
288 #ifdef CONFIG_ARCH_R8A7743
289 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
291 #ifdef CONFIG_ARCH_R8A7744
292 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
294 #ifdef CONFIG_ARCH_R8A7745
295 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
297 #ifdef CONFIG_ARCH_R8A77470
298 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
300 #ifdef CONFIG_ARCH_R8A774A1
301 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
303 #ifdef CONFIG_ARCH_R8A774B1
304 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
306 #ifdef CONFIG_ARCH_R8A774C0
307 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
309 #ifdef CONFIG_ARCH_R8A774E1
310 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
312 #ifdef CONFIG_ARCH_R8A7778
313 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
315 #ifdef CONFIG_ARCH_R8A7779
316 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
318 #ifdef CONFIG_ARCH_R8A7790
319 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
321 #ifdef CONFIG_ARCH_R8A7791
322 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
324 #ifdef CONFIG_ARCH_R8A7792
325 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
327 #ifdef CONFIG_ARCH_R8A7793
328 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
330 #ifdef CONFIG_ARCH_R8A7794
331 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
333 #if defined(CONFIG_ARCH_R8A77950) || defined(CONFIG_ARCH_R8A77951)
334 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
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 },
342 #ifdef CONFIG_ARCH_R8A77960
343 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
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 },
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 },
355 #ifdef CONFIG_ARCH_R8A77970
356 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
358 #ifdef CONFIG_ARCH_R8A77980
359 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
361 #ifdef CONFIG_ARCH_R8A77990
362 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
363 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
365 #ifdef CONFIG_ARCH_R8A77995
366 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
367 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
369 #ifdef CONFIG_ARCH_R8A779A0
370 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
372 #ifdef CONFIG_ARCH_R8A779F0
373 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
375 #ifdef CONFIG_ARCH_R8A779G0
376 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
378 #if defined(CONFIG_ARCH_R9A07G043)
380 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
382 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
385 #if defined(CONFIG_ARCH_R9A07G044)
386 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
388 #if defined(CONFIG_ARCH_R9A07G054)
389 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
391 #if defined(CONFIG_ARCH_R9A09G011)
392 { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m },
394 #ifdef CONFIG_ARCH_SH73A0
395 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
405 static const struct renesas_id id_bsid __initconst = {
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
414 static const struct renesas_id id_rzg2l __initconst = {
419 static const struct renesas_id id_rzv2m __initconst = {
424 static const struct renesas_id id_prr __initconst = {
429 static 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 },
439 static int __init renesas_soc_init(void)
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;
454 match = of_match_node(renesas_socs, of_root);
458 soc_id = strchr(match->compatible, ',') + 1;
460 family = soc->family;
462 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
465 chipid = of_iomap(np, 0);
467 } else if (soc->id && family->reg) {
468 /* Try hardcoded CCCR/PRR fallback */
470 chipid = ioremap(family->reg, 4);
473 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
477 np = of_find_node_by_path("/");
478 of_property_read_string(np, "model", &soc_dev_attr->machine);
481 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
482 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
485 product = readl(chipid + id->offset);
489 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
490 if ((product & 0x7fff) == 0x5210)
492 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
493 if ((product & 0x7fff) == 0x5211)
496 eshi = ((product >> 4) & 0x0f) + 1;
497 eslo = product & 0xf;
498 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
500 } else if (id == &id_rzg2l) {
501 eshi = ((product >> 28) & 0x0f);
502 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
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",
513 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
514 pr_warn("SoC mismatch (product = 0x%x)\n", product);
516 goto free_soc_dev_attr;
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 ?: "");
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;
532 kfree(soc_dev_attr->revision);
533 kfree_const(soc_dev_attr->soc_id);
534 kfree_const(soc_dev_attr->family);
538 early_initcall(renesas_soc_init);