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 __maybe_unused = {
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 #ifdef CONFIG_ARCH_R8A77951
334 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
335 { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 },
336 { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 },
337 { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 },
338 { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 },
340 #ifdef CONFIG_ARCH_R8A77960
341 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
343 #ifdef CONFIG_ARCH_R8A77961
344 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
345 { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w },
346 { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w },
348 #ifdef CONFIG_ARCH_R8A77965
349 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
350 { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n },
351 { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n },
353 #ifdef CONFIG_ARCH_R8A77970
354 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
356 #ifdef CONFIG_ARCH_R8A77980
357 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
359 #ifdef CONFIG_ARCH_R8A77990
360 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
361 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
363 #ifdef CONFIG_ARCH_R8A77995
364 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
365 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
367 #ifdef CONFIG_ARCH_R8A779A0
368 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
370 #ifdef CONFIG_ARCH_R8A779F0
371 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
373 #ifdef CONFIG_ARCH_R8A779G0
374 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
376 #ifdef CONFIG_ARCH_R9A07G043
378 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
380 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
383 #ifdef CONFIG_ARCH_R9A07G044
384 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
386 #ifdef CONFIG_ARCH_R9A07G054
387 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
389 #ifdef CONFIG_ARCH_R9A09G011
390 { .compatible = "renesas,r9a09g011", .data = &soc_rz_v2m },
392 #ifdef CONFIG_ARCH_SH73A0
393 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
403 static const struct renesas_id id_bsid __initconst = {
407 * TODO: Upper 4 bits of BSID are for chip version, but the format is
408 * not known at this time so we don't know how to specify eshi and eslo
412 static const struct renesas_id id_rzg2l __initconst = {
417 static const struct renesas_id id_rzv2m __initconst = {
422 static const struct renesas_id id_prr __initconst = {
427 static const struct of_device_id renesas_ids[] __initconst = {
428 { .compatible = "renesas,bsid", .data = &id_bsid },
429 { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l },
430 { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l },
431 { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l },
432 { .compatible = "renesas,r9a09g011-sys", .data = &id_rzv2m },
433 { .compatible = "renesas,prr", .data = &id_prr },
437 static int __init renesas_soc_init(void)
439 struct soc_device_attribute *soc_dev_attr;
440 unsigned int product, eshi = 0, eslo;
441 const struct renesas_family *family;
442 const struct of_device_id *match;
443 const struct renesas_soc *soc;
444 const struct renesas_id *id;
445 void __iomem *chipid = NULL;
446 const char *rev_prefix = "";
447 struct soc_device *soc_dev;
448 struct device_node *np;
452 match = of_match_node(renesas_socs, of_root);
456 soc_id = strchr(match->compatible, ',') + 1;
458 family = soc->family;
460 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
463 chipid = of_iomap(np, 0);
465 } else if (soc->id && family->reg) {
466 /* Try hardcoded CCCR/PRR fallback */
468 chipid = ioremap(family->reg, 4);
471 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
478 np = of_find_node_by_path("/");
479 of_property_read_string(np, "model", &soc_dev_attr->machine);
482 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
483 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
486 product = readl(chipid + id->offset);
490 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
491 if ((product & 0x7fff) == 0x5210)
493 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
494 if ((product & 0x7fff) == 0x5211)
497 eshi = ((product >> 4) & 0x0f) + 1;
498 eslo = product & 0xf;
499 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
501 } else if (id == &id_rzg2l) {
502 eshi = ((product >> 28) & 0x0f);
503 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
506 } else if (id == &id_rzv2m) {
507 eshi = ((product >> 4) & 0x0f);
508 eslo = product & 0xf;
509 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u.%u",
514 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
515 pr_warn("SoC mismatch (product = 0x%x)\n", product);
517 goto free_soc_dev_attr;
521 pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
522 soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
524 soc_dev = soc_device_register(soc_dev_attr);
525 if (IS_ERR(soc_dev)) {
526 ret = PTR_ERR(soc_dev);
527 goto free_soc_dev_attr;
533 kfree(soc_dev_attr->revision);
534 kfree_const(soc_dev_attr->soc_id);
535 kfree_const(soc_dev_attr->family);
539 early_initcall(renesas_soc_init);