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/*
* Display CPU info in /proc/cpuinfo.
*
* Copyright (C) 2003, Axis Communications AB.
*/
#include <linux/config.h>
#include <linux/seq_file.h>
#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <linux/param.h>
#ifdef CONFIG_PROC_FS
#define HAS_FPU 0x0001
#define HAS_MMU 0x0002
#define HAS_ETHERNET100 0x0004
#define HAS_TOKENRING 0x0008
#define HAS_SCSI 0x0010
#define HAS_ATA 0x0020
#define HAS_USB 0x0040
#define HAS_IRQ_BUG 0x0080
#define HAS_MMU_BUG 0x0100
struct cpu_info {
char *cpu_model;
unsigned short rev;
unsigned short cache_size;
unsigned short flags;
};
/* Some of these model are here for historical reasons only. */
static struct cpu_info cpinfo[] = {
{"ETRAX 1", 0, 0, 0},
{"ETRAX 2", 1, 0, 0},
{"ETRAX 3", 2, 0, 0},
{"ETRAX 4", 3, 0, 0},
{"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
{"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG},
{"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
{"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
| HAS_MMU | HAS_MMU_BUG},
{"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
| HAS_MMU},
{"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
{"Unknown", 0, 0, 0}
};
int
show_cpuinfo(struct seq_file *m, void *v)
{
int i;
int cpu = (int)v - 1;
int entries;
unsigned long revision;
struct cpu_info *info;
entries = sizeof cpinfo / sizeof(struct cpu_info);
info = &cpinfo[entries - 1];
#ifdef CONFIG_SMP
if (!cpu_online(cpu))
return 0;
#endif
revision = rdvr();
for (i = 0; i < entries; i++) {
if (cpinfo[i].rev == revision) {
info = &cpinfo[i];
break;
}
}
return seq_printf(m,
"processor\t: %d\n"
"cpu\t\t: CRIS\n"
"cpu revision\t: %lu\n"
"cpu model\t: %s\n"
"cache size\t: %d KB\n"
"fpu\t\t: %s\n"
"mmu\t\t: %s\n"
"mmu DMA bug\t: %s\n"
"ethernet\t: %s Mbps\n"
"token ring\t: %s\n"
"scsi\t\t: %s\n"
"ata\t\t: %s\n"
"usb\t\t: %s\n"
"bogomips\t: %lu.%02lu\n\n",
cpu,
revision,
info->cpu_model,
info->cache_size,
info->flags & HAS_FPU ? "yes" : "no",
info->flags & HAS_MMU ? "yes" : "no",
info->flags & HAS_MMU_BUG ? "yes" : "no",
info->flags & HAS_ETHERNET100 ? "10/100" : "10",
info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
info->flags & HAS_SCSI ? "yes" : "no",
info->flags & HAS_ATA ? "yes" : "no",
info->flags & HAS_USB ? "yes" : "no",
(loops_per_jiffy * HZ + 500) / 500000,
((loops_per_jiffy * HZ + 500) / 5000) % 100);
}
#endif /* CONFIG_PROC_FS */
void
show_etrax_copyright(void)
{
printk(KERN_INFO
"Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n");
}
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