1/*
2 *
3 *  linux/arch/cris/arch-v10/kernel/setup.c
4 *
5 *  Copyright (C) 1995  Linus Torvalds
6 *  Copyright (c) 2001-2002  Axis Communications AB
7 */
8
9/*
10 * This file handles the architecture-dependent parts of initialization
11 */
12
13#include <linux/seq_file.h>
14#include <linux/proc_fs.h>
15#include <linux/delay.h>
16#include <linux/param.h>
17#include <arch/system.h>
18
19#ifdef CONFIG_PROC_FS
20#define HAS_FPU		0x0001
21#define HAS_MMU		0x0002
22#define HAS_ETHERNET100	0x0004
23#define HAS_TOKENRING	0x0008
24#define HAS_SCSI	0x0010
25#define HAS_ATA		0x0020
26#define HAS_USB		0x0040
27#define HAS_IRQ_BUG	0x0080
28#define HAS_MMU_BUG	0x0100
29
30static struct cpu_info {
31	char *model;
32	unsigned short cache;
33	unsigned short flags;
34} cpu_info[] = {
35	/* The first four models will never ever run this code and are
36	   only here for display.  */
37	{ "ETRAX 1",         0, 0 },
38	{ "ETRAX 2",         0, 0 },
39	{ "ETRAX 3",         0, HAS_TOKENRING },
40	{ "ETRAX 4",         0, HAS_TOKENRING | HAS_SCSI },
41	{ "Unknown",         0, 0 },
42	{ "Unknown",         0, 0 },
43	{ "Unknown",         0, 0 },
44	{ "Simulator",       8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA },
45	{ "ETRAX 100",       8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG },
46	{ "ETRAX 100",       8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA },
47	{ "ETRAX 100LX",     8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB | HAS_MMU | HAS_MMU_BUG },
48	{ "ETRAX 100LX v2",  8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB | HAS_MMU  },
49	{ "Unknown",         0, 0 }  /* This entry MUST be the last */
50};
51
52int show_cpuinfo(struct seq_file *m, void *v)
53{
54	unsigned long revision;
55	struct cpu_info *info;
56
57	/* read the version register in the CPU and print some stuff */
58
59	revision = rdvr();
60
61	if (revision >= ARRAY_SIZE(cpu_info))
62		info = &cpu_info[ARRAY_SIZE(cpu_info) - 1];
63	else
64		info = &cpu_info[revision];
65
66	seq_printf(m,
67		   "processor\t: 0\n"
68		   "cpu\t\t: CRIS\n"
69		   "cpu revision\t: %lu\n"
70		   "cpu model\t: %s\n"
71		   "cache size\t: %d kB\n"
72		   "fpu\t\t: %s\n"
73		   "mmu\t\t: %s\n"
74		   "mmu DMA bug\t: %s\n"
75		   "ethernet\t: %s Mbps\n"
76		   "token ring\t: %s\n"
77		   "scsi\t\t: %s\n"
78		   "ata\t\t: %s\n"
79		   "usb\t\t: %s\n"
80		   "bogomips\t: %lu.%02lu\n",
81
82		   revision,
83		   info->model,
84		   info->cache,
85		   info->flags & HAS_FPU ? "yes" : "no",
86		   info->flags & HAS_MMU ? "yes" : "no",
87		   info->flags & HAS_MMU_BUG ? "yes" : "no",
88		   info->flags & HAS_ETHERNET100 ? "10/100" : "10",
89		   info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
90		   info->flags & HAS_SCSI ? "yes" : "no",
91		   info->flags & HAS_ATA ? "yes" : "no",
92		   info->flags & HAS_USB ? "yes" : "no",
93		   (loops_per_jiffy * HZ + 500) / 500000,
94		   ((loops_per_jiffy * HZ + 500) / 5000) % 100);
95
96	return 0;
97}
98
99#endif /* CONFIG_PROC_FS */
100
101void
102show_etrax_copyright(void)
103{
104	printk(KERN_INFO
105               "Linux/CRIS port on ETRAX 100LX (c) 2001 Axis Communications AB\n");
106}
107