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/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
  24 struct 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. */
  32 static 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
  52 int
  53 show_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
 110 void
 111 show_etrax_copyright(void)
 112 {
 113         printk(KERN_INFO
 114                "Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n");
 115 }