arm: socfpga: spl: printout sdram size
[oweals/u-boot.git] / arch / arm / mach-uniphier / cpu_info.c
1 /*
2  * Copyright (C) 2013-2014 Panasonic Corporation
3  *   Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <asm/io.h>
10 #include <mach/sg-regs.h>
11
12 int print_cpuinfo(void)
13 {
14         u32 revision, type, model, rev, required_model = 1, required_rev = 1;
15
16         revision = readl(SG_REVISION);
17         type = (revision & SG_REVISION_TYPE_MASK) >> SG_REVISION_TYPE_SHIFT;
18         model = (revision & SG_REVISION_MODEL_MASK) >> SG_REVISION_MODEL_SHIFT;
19         rev = (revision & SG_REVISION_REV_MASK) >> SG_REVISION_REV_SHIFT;
20
21         puts("CPU:   ");
22
23         switch (type) {
24         case 0x25:
25                 puts("PH1-sLD3 (MN2WS0220)");
26                 required_model = 2;
27                 break;
28         case 0x26:
29                 puts("PH1-LD4 (MN2WS0250)");
30                 required_rev = 2;
31                 break;
32         case 0x28:
33                 puts("PH1-Pro4 (MN2WS0230)");
34                 break;
35         case 0x29:
36                 puts("PH1-sLD8 (MN2WS0270)");
37                 break;
38         default:
39                 printf("Unknown Processor ID (0x%x)\n", revision);
40                 return -1;
41         }
42
43         if (model > 1)
44                 printf(" model %d", model);
45
46         printf(" (rev. %d)\n", rev);
47
48         if (model < required_model) {
49                 printf("Sorry, this model is not supported.\n");
50                 printf("Required model is %d.", required_model);
51                 return -1;
52         } else if (rev < required_rev) {
53                 printf("Sorry, this revision is not supported.\n");
54                 printf("Required revision is %d.", required_rev);
55                 return -1;
56         }
57
58         return 0;
59 }