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406107da MS |
1 | /* |
2 | * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> | |
3 | * Copyright (C) 2007-2009 PetaLogix | |
4 | * Copyright (C) 2007 John Williams <john.williams@petalogix.com> | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
11 | #include <linux/init.h> | |
12 | #include <linux/slab.h> | |
13 | #include <asm/cpuinfo.h> | |
14 | #include <asm/pvr.h> | |
15 | ||
16 | const struct cpu_ver_key cpu_ver_lookup[] = { | |
17 | /* These key value are as per MBV field in PVR0 */ | |
18 | {"5.00.a", 0x01}, | |
19 | {"5.00.b", 0x02}, | |
20 | {"5.00.c", 0x03}, | |
21 | {"6.00.a", 0x04}, | |
22 | {"6.00.b", 0x06}, | |
23 | {"7.00.a", 0x05}, | |
24 | {"7.00.b", 0x07}, | |
25 | {"7.10.a", 0x08}, | |
26 | {"7.10.b", 0x09}, | |
27 | {"7.10.c", 0x0a}, | |
28 | {"7.10.d", 0x0b}, | |
94ad8eb8 MS |
29 | {"7.20.a", 0x0c}, |
30 | {"7.20.b", 0x0d}, | |
f97b4f7d | 31 | {"7.20.c", 0x0e}, |
6cec713b | 32 | {"7.20.d", 0x0f}, |
406107da MS |
33 | {NULL, 0}, |
34 | }; | |
35 | ||
36 | /* | |
37 | * FIXME Not sure if the actual key is defined by Xilinx in the PVR | |
38 | */ | |
39 | const struct family_string_key family_string_lookup[] = { | |
40 | {"virtex2", 0x4}, | |
41 | {"virtex2pro", 0x5}, | |
42 | {"spartan3", 0x6}, | |
43 | {"virtex4", 0x7}, | |
44 | {"virtex5", 0x8}, | |
45 | {"spartan3e", 0x9}, | |
46 | {"spartan3a", 0xa}, | |
47 | {"spartan3an", 0xb}, | |
48 | {"spartan3adsp", 0xc}, | |
f97b4f7d JW |
49 | {"spartan6", 0xd}, |
50 | {"virtex6", 0xe}, | |
406107da MS |
51 | /* FIXME There is no key code defined for spartan2 */ |
52 | {"spartan2", 0xf0}, | |
53 | {NULL, 0}, | |
54 | }; | |
55 | ||
56 | struct cpuinfo cpuinfo; | |
57 | ||
58 | void __init setup_cpuinfo(void) | |
59 | { | |
60 | struct device_node *cpu = NULL; | |
61 | ||
62 | cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); | |
63 | if (!cpu) | |
64 | printk(KERN_ERR "You don't have cpu!!!\n"); | |
65 | ||
66 | printk(KERN_INFO "%s: initialising\n", __func__); | |
67 | ||
68 | switch (cpu_has_pvr()) { | |
69 | case 0: | |
70 | printk(KERN_WARNING | |
71 | "%s: No PVR support. Using static CPU info from FDT\n", | |
72 | __func__); | |
73 | set_cpuinfo_static(&cpuinfo, cpu); | |
74 | break; | |
fbeda677 | 75 | /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a |
406107da MS |
76 | * please do not use FULL PVR with MMU */ |
77 | case 1: | |
78 | printk(KERN_INFO "%s: Using full CPU PVR support\n", | |
79 | __func__); | |
80 | set_cpuinfo_static(&cpuinfo, cpu); | |
81 | set_cpuinfo_pvr_full(&cpuinfo, cpu); | |
82 | break; | |
83 | default: | |
84 | printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__); | |
85 | set_cpuinfo_static(&cpuinfo, cpu); | |
86 | } | |
87 | } |