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 <init.h>
9 #include <stdio.h>
10 #include <linux/errno.h>
11 #include <linux/io.h>
12 #include <linux/printk.h>
13
14 #include "base-address.h"
15 #include "soc-info.h"
16
print_cpuinfo(void)17 int print_cpuinfo(void)
18 {
19 unsigned int id, model, rev, required_model = 1, required_rev = 1;
20 int ret;
21
22 ret = uniphier_base_address_init();
23 if (ret)
24 return ret;
25
26 id = uniphier_get_soc_id();
27 model = uniphier_get_soc_model();
28 rev = uniphier_get_soc_revision();
29
30 puts("SoC: ");
31
32 switch (id) {
33 case UNIPHIER_LD4_ID:
34 puts("LD4");
35 required_rev = 2;
36 break;
37 case UNIPHIER_PRO4_ID:
38 puts("Pro4");
39 break;
40 case UNIPHIER_SLD8_ID:
41 puts("sLD8");
42 break;
43 case UNIPHIER_PRO5_ID:
44 puts("Pro5");
45 break;
46 case UNIPHIER_PXS2_ID:
47 puts("PXs2");
48 break;
49 case UNIPHIER_LD6B_ID:
50 puts("LD6b");
51 break;
52 case UNIPHIER_LD11_ID:
53 puts("LD11");
54 break;
55 case UNIPHIER_LD20_ID:
56 puts("LD20");
57 break;
58 case UNIPHIER_PXS3_ID:
59 puts("PXs3");
60 break;
61 default:
62 printf("Unknown Processor ID (0x%x)\n", id);
63 return -ENOTSUPP;
64 }
65
66 printf(" (model %d, revision %d)\n", model, rev);
67
68 if (model < required_model) {
69 pr_err("Only model %d or newer is supported.\n",
70 required_model);
71 return -ENOTSUPP;
72 } else if (rev < required_rev) {
73 pr_err("Only revision %d or newer is supported.\n",
74 required_rev);
75 return -ENOTSUPP;
76 }
77
78 return 0;
79 }
80