1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2013-2014 Panasonic Corporation
4 * Copyright (C) 2015-2017 Socionext Inc.
5 * Author: Masahiro Yamada <yamada.masahiro@socionext.com>
6 */
7
8 #include <stdio.h>
9 #include <linux/errno.h>
10 #include <linux/io.h>
11 #include <linux/printk.h>
12
13 #include "soc-info.h"
14
print_cpuinfo(void)15 int print_cpuinfo(void)
16 {
17 unsigned int id, model, rev, required_model = 1, required_rev = 1;
18
19 id = uniphier_get_soc_id();
20 model = uniphier_get_soc_model();
21 rev = uniphier_get_soc_revision();
22
23 puts("SoC: ");
24
25 switch (id) {
26 case UNIPHIER_LD4_ID:
27 puts("LD4");
28 required_rev = 2;
29 break;
30 case UNIPHIER_PRO4_ID:
31 puts("Pro4");
32 break;
33 case UNIPHIER_SLD8_ID:
34 puts("sLD8");
35 break;
36 case UNIPHIER_PRO5_ID:
37 puts("Pro5");
38 break;
39 case UNIPHIER_PXS2_ID:
40 puts("PXs2");
41 break;
42 case UNIPHIER_LD6B_ID:
43 puts("LD6b");
44 break;
45 case UNIPHIER_LD11_ID:
46 puts("LD11");
47 break;
48 case UNIPHIER_LD20_ID:
49 puts("LD20");
50 break;
51 case UNIPHIER_PXS3_ID:
52 puts("PXs3");
53 break;
54 default:
55 printf("Unknown Processor ID (0x%x)\n", id);
56 return -ENOTSUPP;
57 }
58
59 printf(" (model %d, revision %d)\n", model, rev);
60
61 if (model < required_model) {
62 pr_err("Only model %d or newer is supported.\n",
63 required_model);
64 return -ENOTSUPP;
65 } else if (rev < required_rev) {
66 pr_err("Only revision %d or newer is supported.\n",
67 required_rev);
68 return -ENOTSUPP;
69 }
70
71 return 0;
72 }
73