linux/arch/cris/arch-v32/kernel/setup.c
<<
>>
Prefs
   1/*
   2 * Display CPU info in /proc/cpuinfo.
   3 *
   4 * Copyright (C) 2003, Axis Communications AB.
   5 */
   6
   7#include <linux/seq_file.h>
   8#include <linux/proc_fs.h>
   9#include <linux/delay.h>
  10#include <linux/param.h>
  11
  12#ifdef CONFIG_PROC_FS
  13
  14#define HAS_FPU         0x0001
  15#define HAS_MMU         0x0002
  16#define HAS_ETHERNET100 0x0004
  17#define HAS_TOKENRING   0x0008
  18#define HAS_SCSI        0x0010
  19#define HAS_ATA         0x0020
  20#define HAS_USB         0x0040
  21#define HAS_IRQ_BUG     0x0080
  22#define HAS_MMU_BUG     0x0100
  23
  24struct cpu_info {
  25        char *cpu_model;
  26        unsigned short rev;
  27        unsigned short cache_size;
  28        unsigned short flags;
  29};
  30
  31/* Some of these model are here for historical reasons only. */
  32static struct cpu_info cpinfo[] = {
  33        {"ETRAX 1", 0, 0, 0},
  34        {"ETRAX 2", 1, 0, 0},
  35        {"ETRAX 3", 2, 0, 0},
  36        {"ETRAX 4", 3, 0, 0},
  37        {"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
  38        {"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG},
  39        {"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
  40
  41        {"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
  42                             | HAS_MMU | HAS_MMU_BUG},
  43
  44        {"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
  45                                | HAS_MMU},
  46
  47        {"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
  48
  49        {"Unknown", 0, 0, 0}
  50};
  51
  52int
  53show_cpuinfo(struct seq_file *m, void *v)
  54{
  55        int i;
  56        int cpu = (int)v - 1;
  57        unsigned long revision;
  58        struct cpu_info *info;
  59
  60        info = &cpinfo[ARRAY_SIZE(cpinfo) - 1];
  61
  62#ifdef CONFIG_SMP
  63        if (!cpu_online(cpu))
  64                return 0;
  65#endif
  66
  67        revision = rdvr();
  68
  69        for (i = 0; i < ARRAY_SIZE(cpinfo); i++) {
  70                if (cpinfo[i].rev == revision) {
  71                        info = &cpinfo[i];
  72                        break;
  73                }
  74        }
  75
  76        return seq_printf(m,
  77                "processor\t: %d\n"
  78                "cpu\t\t: CRIS\n"
  79                "cpu revision\t: %lu\n"
  80                "cpu model\t: %s\n"
  81                "cache size\t: %d KB\n"
  82                "fpu\t\t: %s\n"
  83                "mmu\t\t: %s\n"
  84                "mmu DMA bug\t: %s\n"
  85                "ethernet\t: %s Mbps\n"
  86                "token ring\t: %s\n"
  87                "scsi\t\t: %s\n"
  88                "ata\t\t: %s\n"
  89                "usb\t\t: %s\n"
  90                "bogomips\t: %lu.%02lu\n\n",
  91
  92                cpu,
  93                revision,
  94                info->cpu_model,
  95                info->cache_size,
  96                info->flags & HAS_FPU ? "yes" : "no",
  97                info->flags & HAS_MMU ? "yes" : "no",
  98                info->flags & HAS_MMU_BUG ? "yes" : "no",
  99                info->flags & HAS_ETHERNET100 ? "10/100" : "10",
 100                info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
 101                info->flags & HAS_SCSI ? "yes" : "no",
 102                info->flags & HAS_ATA ? "yes" : "no",
 103                info->flags & HAS_USB ? "yes" : "no",
 104                (loops_per_jiffy * HZ + 500) / 500000,
 105                ((loops_per_jiffy * HZ + 500) / 5000) % 100);
 106}
 107
 108#endif /* CONFIG_PROC_FS */
 109
 110void
 111show_etrax_copyright(void)
 112{
 113        printk(KERN_INFO
 114               "Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n");
 115}
 116