arch/cris/arch-v32/kernel/setup.c

   1 /*
   2  * Display CPU info in /proc/cpuinfo.
   3  *
   4  * Copyright (C) 2003, Axis Communications AB.
   5  */
   6
   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>
  12
  13 #ifdef CONFIG_PROC_FS
  14
  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
  24
  25 struct cpu_info {
  26         char *cpu_model;
  27         unsigned short rev;
  28         unsigned short cache_size;
  29         unsigned short flags;
  30 };
  31
  32 /* Some of these model are here for historical reasons only. */
  33 static struct cpu_info cpinfo[] = {
  34         {"ETRAX 1", 0, 0, 0},
  35         {"ETRAX 2", 1, 0, 0},
  36         {"ETRAX 3", 2, 0, 0},
  37         {"ETRAX 4", 3, 0, 0},
  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},
  41
  42         {"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
  43                              | HAS_MMU | HAS_MMU_BUG},
  44
  45         {"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
  46                                 | HAS_MMU},
  47
  48         {"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
  49
  50         {"Unknown", 0, 0, 0}
  51 };
  52
  53 int
  54 show_cpuinfo(struct seq_file *m, void *v)
  55 {
  56         int i;
  57         int cpu = (int)v - 1;
  58         int entries;
  59         unsigned long revision;
  60         struct cpu_info *info;
  61
  62         entries = sizeof cpinfo / sizeof(struct cpu_info);
  63         info = &cpinfo[entries - 1];
  64
  65 #ifdef CONFIG_SMP
  66         if (!cpu_online(cpu))
  67                 return 0;
  68 #endif
  69
  70         revision = rdvr();
  71
  72         for (i = 0; i < entries; i++) {
  73                 if (cpinfo[i].rev == revision) {
  74                         info = &cpinfo[i];
  75                         break;
  76                 }
  77         }
  78
  79         return seq_printf(m,
  80                 "processor\t: %d\n"
  81                 "cpu\t\t: CRIS\n"
  82                 "cpu revision\t: %lu\n"
  83                 "cpu model\t: %s\n"
  84                 "cache size\t: %d KB\n"
  85                 "fpu\t\t: %s\n"
  86                 "mmu\t\t: %s\n"
  87                 "mmu DMA bug\t: %s\n"
  88                 "ethernet\t: %s Mbps\n"
  89                 "token ring\t: %s\n"
  90                 "scsi\t\t: %s\n"
  91                 "ata\t\t: %s\n"
  92                 "usb\t\t: %s\n"
  93                 "bogomips\t: %lu.%02lu\n\n",
  94
  95                 cpu,
  96                 revision,
  97                 info->cpu_model,
  98                 info->cache_size,
  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);
 109 }
 110
 111 #endif /* CONFIG_PROC_FS */
 112
 113 void
 114 show_etrax_copyright(void)
 115 {
 116         printk(KERN_INFO
 117                "Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n");
 118 }