This source file includes following definitions.
- renesas_soc_init
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8 #include <linux/io.h>
9 #include <linux/of.h>
10 #include <linux/of_address.h>
11 #include <linux/slab.h>
12 #include <linux/string.h>
13 #include <linux/sys_soc.h>
14
15
16 struct renesas_family {
17 const char name[16];
18 u32 reg;
19 };
20
21 static const struct renesas_family fam_rcar_gen1 __initconst __maybe_unused = {
22 .name = "R-Car Gen1",
23 .reg = 0xff000044,
24 };
25
26 static const struct renesas_family fam_rcar_gen2 __initconst __maybe_unused = {
27 .name = "R-Car Gen2",
28 .reg = 0xff000044,
29 };
30
31 static const struct renesas_family fam_rcar_gen3 __initconst __maybe_unused = {
32 .name = "R-Car Gen3",
33 .reg = 0xfff00044,
34 };
35
36 static const struct renesas_family fam_rmobile __initconst __maybe_unused = {
37 .name = "R-Mobile",
38 .reg = 0xe600101c,
39 };
40
41 static const struct renesas_family fam_rza1 __initconst __maybe_unused = {
42 .name = "RZ/A1",
43 };
44
45 static const struct renesas_family fam_rza2 __initconst __maybe_unused = {
46 .name = "RZ/A2",
47 };
48
49 static const struct renesas_family fam_rzg1 __initconst __maybe_unused = {
50 .name = "RZ/G1",
51 .reg = 0xff000044,
52 };
53
54 static const struct renesas_family fam_rzg2 __initconst __maybe_unused = {
55 .name = "RZ/G2",
56 .reg = 0xfff00044,
57 };
58
59 static const struct renesas_family fam_shmobile __initconst __maybe_unused = {
60 .name = "SH-Mobile",
61 .reg = 0xe600101c,
62 };
63
64
65 struct renesas_soc {
66 const struct renesas_family *family;
67 u8 id;
68 };
69
70 static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = {
71 .family = &fam_rza1,
72 };
73
74 static const struct renesas_soc soc_rz_a2m __initconst __maybe_unused = {
75 .family = &fam_rza2,
76 .id = 0x3b,
77 };
78
79 static const struct renesas_soc soc_rmobile_ape6 __initconst __maybe_unused = {
80 .family = &fam_rmobile,
81 .id = 0x3f,
82 };
83
84 static const struct renesas_soc soc_rmobile_a1 __initconst __maybe_unused = {
85 .family = &fam_rmobile,
86 .id = 0x40,
87 };
88
89 static const struct renesas_soc soc_rz_g1h __initconst __maybe_unused = {
90 .family = &fam_rzg1,
91 .id = 0x45,
92 };
93
94 static const struct renesas_soc soc_rz_g1m __initconst __maybe_unused = {
95 .family = &fam_rzg1,
96 .id = 0x47,
97 };
98
99 static const struct renesas_soc soc_rz_g1n __initconst __maybe_unused = {
100 .family = &fam_rzg1,
101 .id = 0x4b,
102 };
103
104 static const struct renesas_soc soc_rz_g1e __initconst __maybe_unused = {
105 .family = &fam_rzg1,
106 .id = 0x4c,
107 };
108
109 static const struct renesas_soc soc_rz_g1c __initconst __maybe_unused = {
110 .family = &fam_rzg1,
111 .id = 0x53,
112 };
113
114 static const struct renesas_soc soc_rz_g2m __initconst __maybe_unused = {
115 .family = &fam_rzg2,
116 .id = 0x52,
117 };
118
119 static const struct renesas_soc soc_rz_g2e __initconst __maybe_unused = {
120 .family = &fam_rzg2,
121 .id = 0x57,
122 };
123
124 static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = {
125 .family = &fam_rcar_gen1,
126 };
127
128 static const struct renesas_soc soc_rcar_h1 __initconst __maybe_unused = {
129 .family = &fam_rcar_gen1,
130 .id = 0x3b,
131 };
132
133 static const struct renesas_soc soc_rcar_h2 __initconst __maybe_unused = {
134 .family = &fam_rcar_gen2,
135 .id = 0x45,
136 };
137
138 static const struct renesas_soc soc_rcar_m2_w __initconst __maybe_unused = {
139 .family = &fam_rcar_gen2,
140 .id = 0x47,
141 };
142
143 static const struct renesas_soc soc_rcar_v2h __initconst __maybe_unused = {
144 .family = &fam_rcar_gen2,
145 .id = 0x4a,
146 };
147
148 static const struct renesas_soc soc_rcar_m2_n __initconst __maybe_unused = {
149 .family = &fam_rcar_gen2,
150 .id = 0x4b,
151 };
152
153 static const struct renesas_soc soc_rcar_e2 __initconst __maybe_unused = {
154 .family = &fam_rcar_gen2,
155 .id = 0x4c,
156 };
157
158 static const struct renesas_soc soc_rcar_h3 __initconst __maybe_unused = {
159 .family = &fam_rcar_gen3,
160 .id = 0x4f,
161 };
162
163 static const struct renesas_soc soc_rcar_m3_w __initconst __maybe_unused = {
164 .family = &fam_rcar_gen3,
165 .id = 0x52,
166 };
167
168 static const struct renesas_soc soc_rcar_m3_n __initconst __maybe_unused = {
169 .family = &fam_rcar_gen3,
170 .id = 0x55,
171 };
172
173 static const struct renesas_soc soc_rcar_v3m __initconst __maybe_unused = {
174 .family = &fam_rcar_gen3,
175 .id = 0x54,
176 };
177
178 static const struct renesas_soc soc_rcar_v3h __initconst __maybe_unused = {
179 .family = &fam_rcar_gen3,
180 .id = 0x56,
181 };
182
183 static const struct renesas_soc soc_rcar_e3 __initconst __maybe_unused = {
184 .family = &fam_rcar_gen3,
185 .id = 0x57,
186 };
187
188 static const struct renesas_soc soc_rcar_d3 __initconst __maybe_unused = {
189 .family = &fam_rcar_gen3,
190 .id = 0x58,
191 };
192
193 static const struct renesas_soc soc_shmobile_ag5 __initconst __maybe_unused = {
194 .family = &fam_shmobile,
195 .id = 0x37,
196 };
197
198
199 static const struct of_device_id renesas_socs[] __initconst = {
200 #ifdef CONFIG_ARCH_R7S72100
201 { .compatible = "renesas,r7s72100", .data = &soc_rz_a1h },
202 #endif
203 #ifdef CONFIG_ARCH_R7S9210
204 { .compatible = "renesas,r7s9210", .data = &soc_rz_a2m },
205 #endif
206 #ifdef CONFIG_ARCH_R8A73A4
207 { .compatible = "renesas,r8a73a4", .data = &soc_rmobile_ape6 },
208 #endif
209 #ifdef CONFIG_ARCH_R8A7740
210 { .compatible = "renesas,r8a7740", .data = &soc_rmobile_a1 },
211 #endif
212 #ifdef CONFIG_ARCH_R8A7742
213 { .compatible = "renesas,r8a7742", .data = &soc_rz_g1h },
214 #endif
215 #ifdef CONFIG_ARCH_R8A7743
216 { .compatible = "renesas,r8a7743", .data = &soc_rz_g1m },
217 #endif
218 #ifdef CONFIG_ARCH_R8A7744
219 { .compatible = "renesas,r8a7744", .data = &soc_rz_g1n },
220 #endif
221 #ifdef CONFIG_ARCH_R8A7745
222 { .compatible = "renesas,r8a7745", .data = &soc_rz_g1e },
223 #endif
224 #ifdef CONFIG_ARCH_R8A77470
225 { .compatible = "renesas,r8a77470", .data = &soc_rz_g1c },
226 #endif
227 #ifdef CONFIG_ARCH_R8A774A1
228 { .compatible = "renesas,r8a774a1", .data = &soc_rz_g2m },
229 #endif
230 #ifdef CONFIG_ARCH_R8A774C0
231 { .compatible = "renesas,r8a774c0", .data = &soc_rz_g2e },
232 #endif
233 #ifdef CONFIG_ARCH_R8A7778
234 { .compatible = "renesas,r8a7778", .data = &soc_rcar_m1a },
235 #endif
236 #ifdef CONFIG_ARCH_R8A7779
237 { .compatible = "renesas,r8a7779", .data = &soc_rcar_h1 },
238 #endif
239 #ifdef CONFIG_ARCH_R8A7790
240 { .compatible = "renesas,r8a7790", .data = &soc_rcar_h2 },
241 #endif
242 #ifdef CONFIG_ARCH_R8A7791
243 { .compatible = "renesas,r8a7791", .data = &soc_rcar_m2_w },
244 #endif
245 #ifdef CONFIG_ARCH_R8A7792
246 { .compatible = "renesas,r8a7792", .data = &soc_rcar_v2h },
247 #endif
248 #ifdef CONFIG_ARCH_R8A7793
249 { .compatible = "renesas,r8a7793", .data = &soc_rcar_m2_n },
250 #endif
251 #ifdef CONFIG_ARCH_R8A7794
252 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 },
253 #endif
254 #ifdef CONFIG_ARCH_R8A7795
255 { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 },
256 #endif
257 #ifdef CONFIG_ARCH_R8A7796
258 { .compatible = "renesas,r8a7796", .data = &soc_rcar_m3_w },
259 #endif
260 #ifdef CONFIG_ARCH_R8A77965
261 { .compatible = "renesas,r8a77965", .data = &soc_rcar_m3_n },
262 #endif
263 #ifdef CONFIG_ARCH_R8A77970
264 { .compatible = "renesas,r8a77970", .data = &soc_rcar_v3m },
265 #endif
266 #ifdef CONFIG_ARCH_R8A77980
267 { .compatible = "renesas,r8a77980", .data = &soc_rcar_v3h },
268 #endif
269 #ifdef CONFIG_ARCH_R8A77990
270 { .compatible = "renesas,r8a77990", .data = &soc_rcar_e3 },
271 #endif
272 #ifdef CONFIG_ARCH_R8A77995
273 { .compatible = "renesas,r8a77995", .data = &soc_rcar_d3 },
274 #endif
275 #ifdef CONFIG_ARCH_SH73A0
276 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 },
277 #endif
278 { }
279 };
280
281 static int __init renesas_soc_init(void)
282 {
283 struct soc_device_attribute *soc_dev_attr;
284 const struct renesas_family *family;
285 const struct of_device_id *match;
286 const struct renesas_soc *soc;
287 void __iomem *chipid = NULL;
288 struct soc_device *soc_dev;
289 struct device_node *np;
290 unsigned int product, eshi = 0, eslo;
291
292 match = of_match_node(renesas_socs, of_root);
293 if (!match)
294 return -ENODEV;
295
296 soc = match->data;
297 family = soc->family;
298
299 np = of_find_compatible_node(NULL, NULL, "renesas,bsid");
300 if (np) {
301 chipid = of_iomap(np, 0);
302 of_node_put(np);
303
304 if (chipid) {
305 product = readl(chipid);
306 iounmap(chipid);
307
308 if (soc->id && ((product >> 16) & 0xff) != soc->id) {
309 pr_warn("SoC mismatch (product = 0x%x)\n",
310 product);
311 return -ENODEV;
312 }
313 }
314
315
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317
318
319
320
321 goto done;
322 }
323
324
325 np = of_find_compatible_node(NULL, NULL, "renesas,prr");
326 if (np) {
327 chipid = of_iomap(np, 0);
328 of_node_put(np);
329 } else if (soc->id && family->reg) {
330 chipid = ioremap(family->reg, 4);
331 }
332 if (chipid) {
333 product = readl(chipid);
334 iounmap(chipid);
335
336 if ((product & 0x7fff) == 0x5210)
337 product ^= 0x11;
338
339 if ((product & 0x7fff) == 0x5211)
340 product ^= 0x12;
341 if (soc->id && ((product >> 8) & 0xff) != soc->id) {
342 pr_warn("SoC mismatch (product = 0x%x)\n", product);
343 return -ENODEV;
344 }
345 eshi = ((product >> 4) & 0x0f) + 1;
346 eslo = product & 0xf;
347 }
348
349 done:
350 soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
351 if (!soc_dev_attr)
352 return -ENOMEM;
353
354 np = of_find_node_by_path("/");
355 of_property_read_string(np, "model", &soc_dev_attr->machine);
356 of_node_put(np);
357
358 soc_dev_attr->family = kstrdup_const(family->name, GFP_KERNEL);
359 soc_dev_attr->soc_id = kstrdup_const(strchr(match->compatible, ',') + 1,
360 GFP_KERNEL);
361 if (eshi)
362 soc_dev_attr->revision = kasprintf(GFP_KERNEL, "ES%u.%u", eshi,
363 eslo);
364
365 pr_info("Detected Renesas %s %s %s\n", soc_dev_attr->family,
366 soc_dev_attr->soc_id, soc_dev_attr->revision ?: "");
367
368 soc_dev = soc_device_register(soc_dev_attr);
369 if (IS_ERR(soc_dev)) {
370 kfree(soc_dev_attr->revision);
371 kfree_const(soc_dev_attr->soc_id);
372 kfree_const(soc_dev_attr->family);
373 kfree(soc_dev_attr);
374 return PTR_ERR(soc_dev);
375 }
376
377 return 0;
378 }
379 early_initcall(renesas_soc_init);