1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Display CPU info in /proc/cpuinfo.
4 *
5 * Copyright (C) 2003, Axis Communications AB.
6 */
7
8 #include <linux/seq_file.h>
9 #include <linux/proc_fs.h>
10 #include <linux/delay.h>
11 #include <linux/param.h>
12
13 #include <linux/i2c.h>
14 #include <linux/platform_device.h>
15
16 #ifdef CONFIG_PROC_FS
17
18 #define HAS_FPU 0x0001
19 #define HAS_MMU 0x0002
20 #define HAS_ETHERNET100 0x0004
21 #define HAS_TOKENRING 0x0008
22 #define HAS_SCSI 0x0010
23 #define HAS_ATA 0x0020
24 #define HAS_USB 0x0040
25 #define HAS_IRQ_BUG 0x0080
26 #define HAS_MMU_BUG 0x0100
27
28 struct cpu_info {
29 char *cpu_model;
30 unsigned short rev;
31 unsigned short cache_size;
32 unsigned short flags;
33 };
34
35 /* Some of these model are here for historical reasons only. */
36 static struct cpu_info cpinfo[] = {
37 {"ETRAX 1", 0, 0, 0},
38 {"ETRAX 2", 1, 0, 0},
39 {"ETRAX 3", 2, 0, 0},
40 {"ETRAX 4", 3, 0, 0},
41 {"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
42 {"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG},
43 {"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
44
45 {"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
46 | HAS_MMU | HAS_MMU_BUG},
47
48 {"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
49 | HAS_MMU},
50 #ifdef CONFIG_ETRAXFS
51 {"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
52 #else
53 {"ARTPEC-3", 32, 32, HAS_ETHERNET100 | HAS_MMU},
54 #endif
55 {"Unknown", 0, 0, 0}
56 };
57
show_cpuinfo(struct seq_file * m,void * v)58 int show_cpuinfo(struct seq_file *m, void *v)
59 {
60 int i;
61 int cpu = (int)v - 1;
62 unsigned long revision;
63 struct cpu_info *info;
64
65 info = &cpinfo[ARRAY_SIZE(cpinfo) - 1];
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 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 return 0;
108 }
109
110 #endif /* CONFIG_PROC_FS */
111
show_etrax_copyright(void)112 void show_etrax_copyright(void)
113 {
114 #ifdef CONFIG_ETRAXFS
115 printk(KERN_INFO "Linux/CRISv32 port on ETRAX FS "
116 "(C) 2003, 2004 Axis Communications AB\n");
117 #else
118 printk(KERN_INFO "Linux/CRISv32 port on ARTPEC-3 "
119 "(C) 2003-2009 Axis Communications AB\n");
120 #endif
121 }
122
123 static struct i2c_board_info __initdata i2c_info[] = {
124 {I2C_BOARD_INFO("camblock", 0x43)},
125 {I2C_BOARD_INFO("tmp100", 0x48)},
126 {I2C_BOARD_INFO("tmp100", 0x4A)},
127 {I2C_BOARD_INFO("tmp100", 0x4C)},
128 {I2C_BOARD_INFO("tmp100", 0x4D)},
129 {I2C_BOARD_INFO("tmp100", 0x4E)},
130 #ifdef CONFIG_RTC_DRV_PCF8563
131 {I2C_BOARD_INFO("pcf8563", 0x51)},
132 #endif
133 {I2C_BOARD_INFO("pca9536", 0x41)},
134 {I2C_BOARD_INFO("fnp300", 0x40)},
135 {I2C_BOARD_INFO("fnp300", 0x42)},
136 {I2C_BOARD_INFO("adc101", 0x54)},
137 };
138
139 static struct i2c_board_info __initdata i2c_info2[] = {
140 {I2C_BOARD_INFO("camblock", 0x43)},
141 {I2C_BOARD_INFO("tmp100", 0x48)},
142 {I2C_BOARD_INFO("tmp100", 0x4A)},
143 {I2C_BOARD_INFO("tmp100", 0x4C)},
144 {I2C_BOARD_INFO("tmp100", 0x4D)},
145 {I2C_BOARD_INFO("tmp100", 0x4E)},
146 {I2C_BOARD_INFO("pca9536", 0x41)},
147 {I2C_BOARD_INFO("fnp300", 0x40)},
148 {I2C_BOARD_INFO("fnp300", 0x42)},
149 {I2C_BOARD_INFO("adc101", 0x54)},
150 };
151
152 static struct i2c_board_info __initdata i2c_info3[] = {
153 {I2C_BOARD_INFO("adc101", 0x54)},
154 };
155
etrax_init(void)156 static int __init etrax_init(void)
157 {
158 i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
159 i2c_register_board_info(1, i2c_info2, ARRAY_SIZE(i2c_info2));
160 i2c_register_board_info(2, i2c_info3, ARRAY_SIZE(i2c_info3));
161 return 0;
162 }
163 arch_initcall(etrax_init);
164