2 * Display CPU info in /proc/cpuinfo.
4 * Copyright (C) 2003, Axis Communications AB.
7 #include <linux/config.h>
8 #include <linux/seq_file.h>
9 #include <linux/proc_fs.h>
10 #include <linux/delay.h>
11 #include <linux/param.h>
15 #define HAS_FPU 0x0001
16 #define HAS_MMU 0x0002
17 #define HAS_ETHERNET100 0x0004
18 #define HAS_TOKENRING 0x0008
19 #define HAS_SCSI 0x0010
20 #define HAS_ATA 0x0020
21 #define HAS_USB 0x0040
22 #define HAS_IRQ_BUG 0x0080
23 #define HAS_MMU_BUG 0x0100
28 unsigned short cache_size;
32 /* Some of these model are here for historical reasons only. */
33 static struct cpu_info cpinfo[] = {
38 {"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
39 {"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG},
40 {"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
42 {"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
43 | HAS_MMU | HAS_MMU_BUG},
45 {"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
48 {"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
54 show_cpuinfo(struct seq_file *m, void *v)
59 unsigned long revision;
60 struct cpu_info *info;
62 entries = sizeof cpinfo / sizeof(struct cpu_info);
63 info = &cpinfo[entries - 1];
72 for (i = 0; i < entries; i++) {
73 if (cpinfo[i].rev == revision) {
82 "cpu revision\t: %lu\n"
84 "cache size\t: %d KB\n"
88 "ethernet\t: %s Mbps\n"
93 "bogomips\t: %lu.%02lu\n\n",
99 info->flags & HAS_FPU ? "yes" : "no",
100 info->flags & HAS_MMU ? "yes" : "no",
101 info->flags & HAS_MMU_BUG ? "yes" : "no",
102 info->flags & HAS_ETHERNET100 ? "10/100" : "10",
103 info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
104 info->flags & HAS_SCSI ? "yes" : "no",
105 info->flags & HAS_ATA ? "yes" : "no",
106 info->flags & HAS_USB ? "yes" : "no",
107 (loops_per_jiffy * HZ + 500) / 500000,
108 ((loops_per_jiffy * HZ + 500) / 5000) % 100);
111 #endif /* CONFIG_PROC_FS */
114 show_etrax_copyright(void)
117 "Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n");