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
27 struct 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. */
35 static 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
show_cpuinfo(struct seq_file * m,void * v)57 int 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 revision = rdvr();
67
68 for (i = 0; i < ARRAY_SIZE(cpinfo); i++) {
69 if (cpinfo[i].rev == revision) {
70 info = &cpinfo[i];
71 break;
72 }
73 }
74
75 seq_printf(m,
76 "processor\t: %d\n"
77 "cpu\t\t: CRIS\n"
78 "cpu revision\t: %lu\n"
79 "cpu model\t: %s\n"
80 "cache size\t: %d KB\n"
81 "fpu\t\t: %s\n"
82 "mmu\t\t: %s\n"
83 "mmu DMA bug\t: %s\n"
84 "ethernet\t: %s Mbps\n"
85 "token ring\t: %s\n"
86 "scsi\t\t: %s\n"
87 "ata\t\t: %s\n"
88 "usb\t\t: %s\n"
89 "bogomips\t: %lu.%02lu\n\n",
90
91 cpu,
92 revision,
93 info->cpu_model,
94 info->cache_size,
95 info->flags & HAS_FPU ? "yes" : "no",
96 info->flags & HAS_MMU ? "yes" : "no",
97 info->flags & HAS_MMU_BUG ? "yes" : "no",
98 info->flags & HAS_ETHERNET100 ? "10/100" : "10",
99 info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
100 info->flags & HAS_SCSI ? "yes" : "no",
101 info->flags & HAS_ATA ? "yes" : "no",
102 info->flags & HAS_USB ? "yes" : "no",
103 (loops_per_jiffy * HZ + 500) / 500000,
104 ((loops_per_jiffy * HZ + 500) / 5000) % 100);
105
106 return 0;
107 }
108
109 #endif /* CONFIG_PROC_FS */
110
show_etrax_copyright(void)111 void show_etrax_copyright(void)
112 {
113 #ifdef CONFIG_ETRAXFS
114 printk(KERN_INFO "Linux/CRISv32 port on ETRAX FS "
115 "(C) 2003, 2004 Axis Communications AB\n");
116 #else
117 printk(KERN_INFO "Linux/CRISv32 port on ARTPEC-3 "
118 "(C) 2003-2009 Axis Communications AB\n");
119 #endif
120 }
121
122 static struct i2c_board_info __initdata i2c_info[] = {
123 {I2C_BOARD_INFO("camblock", 0x43)},
124 {I2C_BOARD_INFO("tmp100", 0x48)},
125 {I2C_BOARD_INFO("tmp100", 0x4A)},
126 {I2C_BOARD_INFO("tmp100", 0x4C)},
127 {I2C_BOARD_INFO("tmp100", 0x4D)},
128 {I2C_BOARD_INFO("tmp100", 0x4E)},
129 #ifdef CONFIG_RTC_DRV_PCF8563
130 {I2C_BOARD_INFO("pcf8563", 0x51)},
131 #endif
132 {I2C_BOARD_INFO("pca9536", 0x41)},
133 {I2C_BOARD_INFO("fnp300", 0x40)},
134 {I2C_BOARD_INFO("fnp300", 0x42)},
135 {I2C_BOARD_INFO("adc101", 0x54)},
136 };
137
138 static struct i2c_board_info __initdata i2c_info2[] = {
139 {I2C_BOARD_INFO("camblock", 0x43)},
140 {I2C_BOARD_INFO("tmp100", 0x48)},
141 {I2C_BOARD_INFO("tmp100", 0x4A)},
142 {I2C_BOARD_INFO("tmp100", 0x4C)},
143 {I2C_BOARD_INFO("tmp100", 0x4D)},
144 {I2C_BOARD_INFO("tmp100", 0x4E)},
145 {I2C_BOARD_INFO("pca9536", 0x41)},
146 {I2C_BOARD_INFO("fnp300", 0x40)},
147 {I2C_BOARD_INFO("fnp300", 0x42)},
148 {I2C_BOARD_INFO("adc101", 0x54)},
149 };
150
151 static struct i2c_board_info __initdata i2c_info3[] = {
152 {I2C_BOARD_INFO("adc101", 0x54)},
153 };
154
etrax_init(void)155 static int __init etrax_init(void)
156 {
157 i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
158 i2c_register_board_info(1, i2c_info2, ARRAY_SIZE(i2c_info2));
159 i2c_register_board_info(2, i2c_info3, ARRAY_SIZE(i2c_info3));
160 return 0;
161 }
162 arch_initcall(etrax_init);
163