1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
|
// SPDX-License-Identifier: GPL-2.0
/*
* Renesas SoC Identification
*
* Copyright (C) 2014-2016 Glider bvba
*/
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/sys_soc.h>
struct renesas_family {
const char name[16];
u32 reg; /* CCCR or PRR, if not in DT */
};
static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
.name = "R-Car Gen1",
.reg = 0xff000044, /* PRR (Product Register) */
};
static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
.name = "R-Car Gen2",
.reg = 0xff000044, /* PRR (Product Register) */
};
static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
.name = "R-Car Gen3",
.reg = 0xfff00044, /* PRR (Product Register) */
};
static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
.name = "R-Mobile",
.reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
};
static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
.name = "RZ/A1",
};
static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
.name = "RZ/A2",
};
static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
.name = "RZ/G1",
.reg = 0xff000044, /* PRR (Product Register) */
};
static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
.name = "RZ/G2",
.reg = 0xfff00044, /* PRR (Product Register) */
};
static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
.name = "SH-Mobile",
.reg = 0xe600101c, /* CCCR (Common Chip Code Register) */
};
struct renesas_soc {
const struct renesas_family *family;
u8 id;
};
static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
.family = &fam_rza1,
};
static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
.family = &fam_rza2,
.id = 0x3b,
};
static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
.family = &fam_rmobile,
.id = 0x3f,
};
static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
.family = &fam_rmobile,
.id = 0x40,
};
static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
.family = &fam_rzg1,
.id = 0x45,
};
static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
.family = &fam_rzg1,
.id = 0x47,
};
static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
.family = &fam_rzg1,
.id = 0x4b,
};
static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
.family = &fam_rzg1,
.id = 0x4c,
};
static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
.family = &fam_rzg1,
.id = 0x53,
};
static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
.family = &fam_rzg2,
.id = 0x52,
};
static const struct renesas_soc soc_rz_g2n __initconst __maybe_unused = {
.family = &fam_rzg2,
.id = 0x55,
};
static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
.family = &fam_rzg2,
.id = 0x57,
};
static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = {
.family = &fam_rzg2,
.id = 0x4f,
};
static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
.family = &fam_rcar_gen1,
};
static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
.family = &fam_rcar_gen1,
.id = 0x3b,
};
static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
.family = &fam_rcar_gen2,
.id = 0x45,
};
static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
.family = &fam_rcar_gen2,
.id = 0x47,
};
static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
.family = &fam_rcar_gen2,
.id = 0x4a,
};
static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
.family = &fam_rcar_gen2,
.id = 0x4b,
};
static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
.family = &fam_rcar_gen2,
.id = 0x4c,
};
static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x4f,
};
static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x52,
};
static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x55,
};
static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x54,
};
static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x56,
};
static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x57,
};
static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
.family = &fam_rcar_gen3,
.id = 0x58,
};
static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
.family = &fam_shmobile,
.id = 0x37,
};
static const struct of_device_id renesas_socs[] __initconst = {
#ifdef CONFIG_ARCH_R7S72100
{ .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
#endif
#ifdef CONFIG_ARCH_R7S9210
{ .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
#endif
#ifdef CONFIG_ARCH_R8A73A4
{ .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
#endif
#ifdef CONFIG_ARCH_R8A7740
{ .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
#endif
#ifdef CONFIG_ARCH_R8A7742
{ .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
#endif
#ifdef CONFIG_ARCH_R8A7743
{ .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
#endif
#ifdef CONFIG_ARCH_R8A7744
{ .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
#endif
#ifdef CONFIG_ARCH_R8A7745
{ .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
#endif
#ifdef CONFIG_ARCH_R8A77470
{ .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
#endif
#ifdef CONFIG_ARCH_R8A774A1
{ .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
#endif
#ifdef CONFIG_ARCH_R8A774B1
{ .compatible = "renesas,r8a774b1", .data = &soc_rz_g2n },
#endif
#ifdef CONFIG_ARCH_R8A774C0
{ .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
#endif
#ifdef CONFIG_ARCH_R8A774E1
{ .compatible = "renesas,r8a774e1", .data = &soc_rz_g2h },
#endif
#ifdef CONFIG_ARCH_R8A7778
{ .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
#endif
#ifdef CONFIG_ARCH_R8A7779
{ .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
#endif
#ifdef CONFIG_ARCH_R8A7790
{ .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
#endif
#ifdef CONFIG_ARCH_R8A7791
{ .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
#endif
#ifdef CONFIG_ARCH_R8A7792
{ .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
#endif
#ifdef CONFIG_ARCH_R8A7793
{ .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
#endif
#ifdef CONFIG_ARCH_R8A7794
{ .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
#endif
#if defined(CONFIG_ARCH_R8A77950) || defined(CONFIG_ARCH_R8A77951)
{ .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
#endif
#ifdef CONFIG_ARCH_R8A77960
{ .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
#endif
#ifdef CONFIG_ARCH_R8A77961
{ .compatible = "renesas,r8a77961", .data = &soc_rcar_m3_w },
#endif
#ifdef CONFIG_ARCH_R8A77965
{ .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
#endif
#ifdef CONFIG_ARCH_R8A77970
{ .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
#endif
#ifdef CONFIG_ARCH_R8A77980
{ .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
#endif
#ifdef CONFIG_ARCH_R8A77990
{ .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
#endif
#ifdef CONFIG_ARCH_R8A77995
{ .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
#endif
#ifdef CONFIG_ARCH_SH73A0
{ .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
#endif
{ /* sentinel */ }
};
static int __init renesas_soc_init(void)
{
struct soc_device_attribute *soc_dev_attr;
const struct renesas_family *family;
const struct of_device_id *match;
const struct renesas_soc *soc;
void __iomem *chipid = NULL;
struct soc_device *soc_dev;
struct device_node *np;
unsigned int product, eshi = 0, eslo;
match = of_match_node(renesas_socs, of_root);
if (!match)
return -ENODEV;
soc = match->data;
family = soc->family;
np = of_find_compatible_node(NULL, NULL, "renesas,bsid");
if (np) {
chipid = of_iomap(np, 0);
of_node_put(np);
if (chipid) {
product = readl(chipid);
iounmap(chipid);
if (soc->id && ((product >> 16) & 0xff) != soc->id) {
pr_warn("SoC mismatch (product = 0x%x)\n",
product);
return -ENODEV;
}
}
/*
* TODO: Upper 4 bits of BSID are for chip version, but the
* format is not known at this time so we don't know how to
* specify eshi and eslo
*/
goto done;
}
/* Try PRR first, then hardcoded fallback */
np = of_find_compatible_node(NULL, NULL, "renesas,prr");
if (np) {
chipid = of_iomap(np, 0);
of_node_put(np);
} else if (soc->id && family->reg) {
chipid = ioremap(family->reg, 4);
}
if (chipid) {
product = readl(chipid);
iounmap(chipid);
/* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */
if ((product & 0x7fff) == 0x5210)
product ^= 0x11;
/* R-Car M3-W ES1.3 incorrectly identifies as ES2.1 */
if ((product & 0x7fff) == 0x5211)
product ^= 0x12;
if (soc->id && ((product >> 8) & 0xff) != soc->id) {
pr_warn("SoC mismatch (product = 0x%x)\n", product);
return -ENODEV;
}
eshi = ((product >> 4) & 0x0f) + 1;
eslo = product & 0xf;
}
done:
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
return -ENOMEM;
np = of_find_node_by_path("/");
of_property_read_string(np, "model", &soc_dev_attr->machine);
of_node_put(np);
soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
soc_dev_attr->soc_id = kstrdup_const(strchr(match->compatible, ',') + 1,
GFP_KERNEL);
if (eshi)
soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", eshi,
eslo);
pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family,
soc_dev_attr->soc_id, soc_dev_attr->revision ?: "");
soc_dev = soc_device_register(soc_dev_attr);
if (IS_ERR(soc_dev)) {
kfree(soc_dev_attr->revision);
kfree_const(soc_dev_attr->soc_id);
kfree_const(soc_dev_attr->family);
kfree(soc_dev_attr);
return PTR_ERR(soc_dev);
}
return 0;
}
early_initcall(renesas_soc_init);
|
