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_shmobile __initconst __maybe_unused = {
81 .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
86 const struct renesas_family *family;
90 static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
94 static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
99 static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
100 .family = &fam_rmobile,
104 static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
105 .family = &fam_rmobile,
109 static const struct renesas_soc soc_rz_five __initconst __maybe_unused = {
110 .family = &fam_rzfive,
114 static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
119 static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
124 static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
129 static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
134 static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
139 static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
144 static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
149 static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
154 static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
159 static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = {
160 .family = &fam_rzg2l,
164 static const struct renesas_soc soc_rz_g2ul __initconst __maybe_unused = {
165 .family = &fam_rzg2ul,
169 static const struct renesas_soc soc_rz_v2l __initconst __maybe_unused = {
170 .family = &fam_rzv2l,
174 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
175 .family = &fam_rcar_gen1,
178 static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
179 .family = &fam_rcar_gen1,
183 static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
184 .family = &fam_rcar_gen2,
188 static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
189 .family = &fam_rcar_gen2,
193 static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
194 .family = &fam_rcar_gen2,
198 static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
199 .family = &fam_rcar_gen2,
203 static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
204 .family = &fam_rcar_gen2,
208 static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
209 .family = &fam_rcar_gen3,
213 static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
214 .family = &fam_rcar_gen3,
218 static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
219 .family = &fam_rcar_gen3,
223 static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
224 .family = &fam_rcar_gen3,
228 static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
229 .family = &fam_rcar_gen3,
233 static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
234 .family = &fam_rcar_gen3,
238 static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
239 .family = &fam_rcar_gen3,
243 static const struct renesas_soc soc_rcar_v3u __initconst __maybe_unused = {
244 .family = &fam_rcar_gen4,
248 static const struct renesas_soc soc_rcar_s4 __initconst __maybe_unused = {
249 .family = &fam_rcar_gen4,
253 static const struct renesas_soc soc_rcar_v4h __initconst __maybe_unused = {
254 .family = &fam_rcar_gen4,
258 static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
259 .family = &fam_shmobile,
264 static const struct of_device_id renesas_socs[] __initconst = {
265 #ifdef CONFIG_ARCH_R7S72100
266 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
268 #ifdef CONFIG_ARCH_R7S9210
269 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
271 #ifdef CONFIG_ARCH_R8A73A4
272 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
274 #ifdef CONFIG_ARCH_R8A7740
275 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
277 #ifdef CONFIG_ARCH_R8A7742
278 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
280 #ifdef CONFIG_ARCH_R8A7743
281 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
283 #ifdef CONFIG_ARCH_R8A7744
284 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
286 #ifdef CONFIG_ARCH_R8A7745
287 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
289 #ifdef CONFIG_ARCH_R8A77470
290 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
292 #ifdef CONFIG_ARCH_R8A774A1
293 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
295 #ifdef CONFIG_ARCH_R8A774B1
296 { .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
298 #ifdef CONFIG_ARCH_R8A774C0
299 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
301 #ifdef CONFIG_ARCH_R8A774E1
302 { .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
304 #ifdef CONFIG_ARCH_R8A7778
305 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
307 #ifdef CONFIG_ARCH_R8A7779
308 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
310 #ifdef CONFIG_ARCH_R8A7790
311 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
313 #ifdef CONFIG_ARCH_R8A7791
314 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
316 #ifdef CONFIG_ARCH_R8A7792
317 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
319 #ifdef CONFIG_ARCH_R8A7793
320 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
322 #ifdef CONFIG_ARCH_R8A7794
323 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
325 #if defined(CONFIG_ARCH_R8A77950) || defined(CONFIG_ARCH_R8A77951)
326 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
328 #ifdef CONFIG_ARCH_R8A77951
329 { .compatible = "renesas,r8a779m0", .data = &soc_rcar_h3 },
330 { .compatible = "renesas,r8a779m1", .data = &soc_rcar_h3 },
331 { .compatible = "renesas,r8a779m8", .data = &soc_rcar_h3 },
332 { .compatible = "renesas,r8a779mb", .data = &soc_rcar_h3 },
334 #ifdef CONFIG_ARCH_R8A77960
335 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
337 #ifdef CONFIG_ARCH_R8A77961
338 { .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
339 { .compatible = "renesas,r8a779m2", .data = &soc_rcar_m3_w },
340 { .compatible = "renesas,r8a779m3", .data = &soc_rcar_m3_w },
342 #ifdef CONFIG_ARCH_R8A77965
343 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
344 { .compatible = "renesas,r8a779m4", .data = &soc_rcar_m3_n },
345 { .compatible = "renesas,r8a779m5", .data = &soc_rcar_m3_n },
347 #ifdef CONFIG_ARCH_R8A77970
348 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
350 #ifdef CONFIG_ARCH_R8A77980
351 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
353 #ifdef CONFIG_ARCH_R8A77990
354 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
355 { .compatible = "renesas,r8a779m6", .data = &soc_rcar_e3 },
357 #ifdef CONFIG_ARCH_R8A77995
358 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
359 { .compatible = "renesas,r8a779m7", .data = &soc_rcar_d3 },
361 #ifdef CONFIG_ARCH_R8A779A0
362 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u },
364 #ifdef CONFIG_ARCH_R8A779F0
365 { .compatible = "renesas,r8a779f0", .data = &soc_rcar_s4 },
367 #ifdef CONFIG_ARCH_R8A779G0
368 { .compatible = "renesas,r8a779g0", .data = &soc_rcar_v4h },
370 #if defined(CONFIG_ARCH_R9A07G043)
372 { .compatible = "renesas,r9a07g043", .data = &soc_rz_five },
374 { .compatible = "renesas,r9a07g043", .data = &soc_rz_g2ul },
377 #if defined(CONFIG_ARCH_R9A07G044)
378 { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l },
380 #if defined(CONFIG_ARCH_R9A07G054)
381 { .compatible = "renesas,r9a07g054", .data = &soc_rz_v2l },
383 #ifdef CONFIG_ARCH_SH73A0
384 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
394 static const struct renesas_id id_bsid __initconst = {
398 * TODO: Upper 4 bits of BSID are for chip version, but the format is
399 * not known at this time so we don't know how to specify eshi and eslo
403 static const struct renesas_id id_rzg2l __initconst = {
408 static const struct renesas_id id_prr __initconst = {
413 static const struct of_device_id renesas_ids[] __initconst = {
414 { .compatible = "renesas,bsid", .data = &id_bsid },
415 { .compatible = "renesas,r9a07g043-sysc", .data = &id_rzg2l },
416 { .compatible = "renesas,r9a07g044-sysc", .data = &id_rzg2l },
417 { .compatible = "renesas,r9a07g054-sysc", .data = &id_rzg2l },
418 { .compatible = "renesas,prr", .data = &id_prr },
422 static int __init renesas_soc_init(void)
424 struct soc_device_attribute *soc_dev_attr;
425 unsigned int product, eshi = 0, eslo;
426 const struct renesas_family *family;
427 const struct of_device_id *match;
428 const struct renesas_soc *soc;
429 const struct renesas_id *id;
430 void __iomem *chipid = NULL;
431 const char *rev_prefix = "";
432 struct soc_device *soc_dev;
433 struct device_node *np;
437 match = of_match_node(renesas_socs, of_root);
441 soc_id = strchr(match->compatible, ',') + 1;
443 family = soc->family;
445 np = of_find_matching_node_and_match(NULL, renesas_ids, &match);
448 chipid = of_iomap(np, 0);
450 } else if (soc->id && family->reg) {
451 /* Try hardcoded CCCR/PRR fallback */
453 chipid = ioremap(family->reg, 4);
456 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
460 np = of_find_node_by_path("/");
461 of_property_read_string(np, "model", &soc_dev_attr->machine);
464 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
465 soc_dev_attr->soc_id = kstrdup_const(soc_id, GFP_KERNEL);
468 product = readl(chipid + id->offset);
472 /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
473 if ((product & 0x7fff) == 0x5210)
475 /* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
476 if ((product & 0x7fff) == 0x5211)
479 eshi = ((product >> 4) & 0x0f) + 1;
480 eslo = product & 0xf;
481 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u",
483 } else if (id == &id_rzg2l) {
484 eshi = ((product >> 28) & 0x0f);
485 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%u",
491 ((product & id->mask) >> __ffs(id->mask)) != soc->id) {
492 pr_warn("SoC mismatch (product = 0x%x)\n", product);
494 goto free_soc_dev_attr;
498 pr_info("Detected Renesas %s %s %s%s\n", soc_dev_attr->family,
499 soc_dev_attr->soc_id, rev_prefix, soc_dev_attr->revision ?: "");
501 soc_dev = soc_device_register(soc_dev_attr);
502 if (IS_ERR(soc_dev)) {
503 ret = PTR_ERR(soc_dev);
504 goto free_soc_dev_attr;
510 kfree(soc_dev_attr->revision);
511 kfree_const(soc_dev_attr->soc_id);
512 kfree_const(soc_dev_attr->family);
516 early_initcall(renesas_soc_init);