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#include <linux/i2c.h>
13#include <linux/platform_device.h>
14
15#ifdef CONFIG_PROC_FS
16
17#define HAS_FPU         0x0001
18#define HAS_MMU         0x0002
19#define HAS_ETHERNET100 0x0004
20#define HAS_TOKENRING   0x0008
21#define HAS_SCSI        0x0010
22#define HAS_ATA         0x0020
23#define HAS_USB         0x0040
24#define HAS_IRQ_BUG     0x0080
25#define HAS_MMU_BUG     0x0100
26
27struct cpu_info {
28	char *cpu_model;
29	unsigned short rev;
30	unsigned short cache_size;
31	unsigned short flags;
32};
33
34/* Some of these model are here for historical reasons only. */
35static struct cpu_info cpinfo[] = {
36	{"ETRAX 1", 0, 0, 0},
37	{"ETRAX 2", 1, 0, 0},
38	{"ETRAX 3", 2, 0, 0},
39	{"ETRAX 4", 3, 0, 0},
40	{"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
41	{"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG},
42	{"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
43
44	{"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
45			     | HAS_MMU | HAS_MMU_BUG},
46
47	{"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
48			        | HAS_MMU},
49#ifdef CONFIG_ETRAXFS
50	{"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
51#else
52	{"ARTPEC-3", 32, 32, HAS_ETHERNET100 | HAS_MMU},
53#endif
54	{"Unknown", 0, 0, 0}
55};
56
57int show_cpuinfo(struct seq_file *m, void *v)
58{
59	int i;
60	int cpu = (int)v - 1;
61	unsigned long revision;
62	struct cpu_info *info;
63
64	info = &cpinfo[ARRAY_SIZE(cpinfo) - 1];
65
66#ifdef CONFIG_SMP
67	if (!cpu_online(cpu))
68		return 0;
69#endif
70
71	revision = rdvr();
72
73	for (i = 0; i < ARRAY_SIZE(cpinfo); i++) {
74		if (cpinfo[i].rev == revision) {
75			info = &cpinfo[i];
76			break;
77		}
78	}
79
80	return seq_printf(m,
81		"processor\t: %d\n"
82		"cpu\t\t: CRIS\n"
83		"cpu revision\t: %lu\n"
84		"cpu model\t: %s\n"
85		"cache size\t: %d KB\n"
86		"fpu\t\t: %s\n"
87		"mmu\t\t: %s\n"
88		"mmu DMA bug\t: %s\n"
89		"ethernet\t: %s Mbps\n"
90		"token ring\t: %s\n"
91		"scsi\t\t: %s\n"
92		"ata\t\t: %s\n"
93		"usb\t\t: %s\n"
94		"bogomips\t: %lu.%02lu\n\n",
95
96		cpu,
97		revision,
98		info->cpu_model,
99		info->cache_size,
100		info->flags & HAS_FPU ? "yes" : "no",
101		info->flags & HAS_MMU ? "yes" : "no",
102		info->flags & HAS_MMU_BUG ? "yes" : "no",
103		info->flags & HAS_ETHERNET100 ? "10/100" : "10",
104		info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
105		info->flags & HAS_SCSI ? "yes" : "no",
106		info->flags & HAS_ATA ? "yes" : "no",
107		info->flags & HAS_USB ? "yes" : "no",
108		(loops_per_jiffy * HZ + 500) / 500000,
109		((loops_per_jiffy * HZ + 500) / 5000) % 100);
110}
111
112#endif /* CONFIG_PROC_FS */
113
114void show_etrax_copyright(void)
115{
116#ifdef CONFIG_ETRAXFS
117	printk(KERN_INFO "Linux/CRISv32 port on ETRAX FS "
118		"(C) 2003, 2004 Axis Communications AB\n");
119#else
120	printk(KERN_INFO "Linux/CRISv32 port on ARTPEC-3 "
121		"(C) 2003-2009 Axis Communications AB\n");
122#endif
123}
124
125static struct i2c_board_info __initdata i2c_info[] = {
126	{I2C_BOARD_INFO("camblock", 0x43)},
127	{I2C_BOARD_INFO("tmp100", 0x48)},
128	{I2C_BOARD_INFO("tmp100", 0x4A)},
129	{I2C_BOARD_INFO("tmp100", 0x4C)},
130	{I2C_BOARD_INFO("tmp100", 0x4D)},
131	{I2C_BOARD_INFO("tmp100", 0x4E)},
132#ifdef CONFIG_RTC_DRV_PCF8563
133	{I2C_BOARD_INFO("pcf8563", 0x51)},
134#endif
135#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
136	{I2C_BOARD_INFO("vgpio", 0x20)},
137	{I2C_BOARD_INFO("vgpio", 0x21)},
138#endif
139	{I2C_BOARD_INFO("pca9536", 0x41)},
140	{I2C_BOARD_INFO("fnp300", 0x40)},
141	{I2C_BOARD_INFO("fnp300", 0x42)},
142	{I2C_BOARD_INFO("adc101", 0x54)},
143};
144
145static struct i2c_board_info __initdata i2c_info2[] = {
146	{I2C_BOARD_INFO("camblock", 0x43)},
147	{I2C_BOARD_INFO("tmp100", 0x48)},
148	{I2C_BOARD_INFO("tmp100", 0x4A)},
149	{I2C_BOARD_INFO("tmp100", 0x4C)},
150	{I2C_BOARD_INFO("tmp100", 0x4D)},
151	{I2C_BOARD_INFO("tmp100", 0x4E)},
152#ifdef CONFIG_ETRAX_VIRTUAL_GPIO
153	{I2C_BOARD_INFO("vgpio", 0x20)},
154	{I2C_BOARD_INFO("vgpio", 0x21)},
155#endif
156	{I2C_BOARD_INFO("pca9536", 0x41)},
157	{I2C_BOARD_INFO("fnp300", 0x40)},
158	{I2C_BOARD_INFO("fnp300", 0x42)},
159	{I2C_BOARD_INFO("adc101", 0x54)},
160};
161
162static struct i2c_board_info __initdata i2c_info3[] = {
163	{I2C_BOARD_INFO("adc101", 0x54)},
164};
165
166static int __init etrax_init(void)
167{
168	i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
169	i2c_register_board_info(1, i2c_info2, ARRAY_SIZE(i2c_info2));
170	i2c_register_board_info(2, i2c_info3, ARRAY_SIZE(i2c_info3));
171	return 0;
172}
173arch_initcall(etrax_init);
174