diff options
Diffstat (limited to 'arch/arm/include/asm/setup.h')
-rw-r--r-- | arch/arm/include/asm/setup.h | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h new file mode 100644 index 000000000000..7bbf105463f1 --- /dev/null +++ b/arch/arm/include/asm/setup.h | |||
@@ -0,0 +1,226 @@ | |||
1 | /* | ||
2 | * linux/include/asm/setup.h | ||
3 | * | ||
4 | * Copyright (C) 1997-1999 Russell King | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | * | ||
10 | * Structure passed to kernel to tell it about the | ||
11 | * hardware it's running on. See Documentation/arm/Setup | ||
12 | * for more info. | ||
13 | */ | ||
14 | #ifndef __ASMARM_SETUP_H | ||
15 | #define __ASMARM_SETUP_H | ||
16 | |||
17 | #include <asm/types.h> | ||
18 | |||
19 | #define COMMAND_LINE_SIZE 1024 | ||
20 | |||
21 | /* The list ends with an ATAG_NONE node. */ | ||
22 | #define ATAG_NONE 0x00000000 | ||
23 | |||
24 | struct tag_header { | ||
25 | __u32 size; | ||
26 | __u32 tag; | ||
27 | }; | ||
28 | |||
29 | /* The list must start with an ATAG_CORE node */ | ||
30 | #define ATAG_CORE 0x54410001 | ||
31 | |||
32 | struct tag_core { | ||
33 | __u32 flags; /* bit 0 = read-only */ | ||
34 | __u32 pagesize; | ||
35 | __u32 rootdev; | ||
36 | }; | ||
37 | |||
38 | /* it is allowed to have multiple ATAG_MEM nodes */ | ||
39 | #define ATAG_MEM 0x54410002 | ||
40 | |||
41 | struct tag_mem32 { | ||
42 | __u32 size; | ||
43 | __u32 start; /* physical start address */ | ||
44 | }; | ||
45 | |||
46 | /* VGA text type displays */ | ||
47 | #define ATAG_VIDEOTEXT 0x54410003 | ||
48 | |||
49 | struct tag_videotext { | ||
50 | __u8 x; | ||
51 | __u8 y; | ||
52 | __u16 video_page; | ||
53 | __u8 video_mode; | ||
54 | __u8 video_cols; | ||
55 | __u16 video_ega_bx; | ||
56 | __u8 video_lines; | ||
57 | __u8 video_isvga; | ||
58 | __u16 video_points; | ||
59 | }; | ||
60 | |||
61 | /* describes how the ramdisk will be used in kernel */ | ||
62 | #define ATAG_RAMDISK 0x54410004 | ||
63 | |||
64 | struct tag_ramdisk { | ||
65 | __u32 flags; /* bit 0 = load, bit 1 = prompt */ | ||
66 | __u32 size; /* decompressed ramdisk size in _kilo_ bytes */ | ||
67 | __u32 start; /* starting block of floppy-based RAM disk image */ | ||
68 | }; | ||
69 | |||
70 | /* describes where the compressed ramdisk image lives (virtual address) */ | ||
71 | /* | ||
72 | * this one accidentally used virtual addresses - as such, | ||
73 | * it's deprecated. | ||
74 | */ | ||
75 | #define ATAG_INITRD 0x54410005 | ||
76 | |||
77 | /* describes where the compressed ramdisk image lives (physical address) */ | ||
78 | #define ATAG_INITRD2 0x54420005 | ||
79 | |||
80 | struct tag_initrd { | ||
81 | __u32 start; /* physical start address */ | ||
82 | __u32 size; /* size of compressed ramdisk image in bytes */ | ||
83 | }; | ||
84 | |||
85 | /* board serial number. "64 bits should be enough for everybody" */ | ||
86 | #define ATAG_SERIAL 0x54410006 | ||
87 | |||
88 | struct tag_serialnr { | ||
89 | __u32 low; | ||
90 | __u32 high; | ||
91 | }; | ||
92 | |||
93 | /* board revision */ | ||
94 | #define ATAG_REVISION 0x54410007 | ||
95 | |||
96 | struct tag_revision { | ||
97 | __u32 rev; | ||
98 | }; | ||
99 | |||
100 | /* initial values for vesafb-type framebuffers. see struct screen_info | ||
101 | * in include/linux/tty.h | ||
102 | */ | ||
103 | #define ATAG_VIDEOLFB 0x54410008 | ||
104 | |||
105 | struct tag_videolfb { | ||
106 | __u16 lfb_width; | ||
107 | __u16 lfb_height; | ||
108 | __u16 lfb_depth; | ||
109 | __u16 lfb_linelength; | ||
110 | __u32 lfb_base; | ||
111 | __u32 lfb_size; | ||
112 | __u8 red_size; | ||
113 | __u8 red_pos; | ||
114 | __u8 green_size; | ||
115 | __u8 green_pos; | ||
116 | __u8 blue_size; | ||
117 | __u8 blue_pos; | ||
118 | __u8 rsvd_size; | ||
119 | __u8 rsvd_pos; | ||
120 | }; | ||
121 | |||
122 | /* command line: \0 terminated string */ | ||
123 | #define ATAG_CMDLINE 0x54410009 | ||
124 | |||
125 | struct tag_cmdline { | ||
126 | char cmdline[1]; /* this is the minimum size */ | ||
127 | }; | ||
128 | |||
129 | /* acorn RiscPC specific information */ | ||
130 | #define ATAG_ACORN 0x41000101 | ||
131 | |||
132 | struct tag_acorn { | ||
133 | __u32 memc_control_reg; | ||
134 | __u32 vram_pages; | ||
135 | __u8 sounddefault; | ||
136 | __u8 adfsdrives; | ||
137 | }; | ||
138 | |||
139 | /* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */ | ||
140 | #define ATAG_MEMCLK 0x41000402 | ||
141 | |||
142 | struct tag_memclk { | ||
143 | __u32 fmemclk; | ||
144 | }; | ||
145 | |||
146 | struct tag { | ||
147 | struct tag_header hdr; | ||
148 | union { | ||
149 | struct tag_core core; | ||
150 | struct tag_mem32 mem; | ||
151 | struct tag_videotext videotext; | ||
152 | struct tag_ramdisk ramdisk; | ||
153 | struct tag_initrd initrd; | ||
154 | struct tag_serialnr serialnr; | ||
155 | struct tag_revision revision; | ||
156 | struct tag_videolfb videolfb; | ||
157 | struct tag_cmdline cmdline; | ||
158 | |||
159 | /* | ||
160 | * Acorn specific | ||
161 | */ | ||
162 | struct tag_acorn acorn; | ||
163 | |||
164 | /* | ||
165 | * DC21285 specific | ||
166 | */ | ||
167 | struct tag_memclk memclk; | ||
168 | } u; | ||
169 | }; | ||
170 | |||
171 | struct tagtable { | ||
172 | __u32 tag; | ||
173 | int (*parse)(const struct tag *); | ||
174 | }; | ||
175 | |||
176 | #define tag_member_present(tag,member) \ | ||
177 | ((unsigned long)(&((struct tag *)0L)->member + 1) \ | ||
178 | <= (tag)->hdr.size * 4) | ||
179 | |||
180 | #define tag_next(t) ((struct tag *)((__u32 *)(t) + (t)->hdr.size)) | ||
181 | #define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2) | ||
182 | |||
183 | #define for_each_tag(t,base) \ | ||
184 | for (t = base; t->hdr.size; t = tag_next(t)) | ||
185 | |||
186 | #ifdef __KERNEL__ | ||
187 | |||
188 | #define __tag __used __attribute__((__section__(".taglist.init"))) | ||
189 | #define __tagtable(tag, fn) \ | ||
190 | static struct tagtable __tagtable_##fn __tag = { tag, fn } | ||
191 | |||
192 | /* | ||
193 | * Memory map description | ||
194 | */ | ||
195 | #ifdef CONFIG_ARCH_LH7A40X | ||
196 | # define NR_BANKS 16 | ||
197 | #else | ||
198 | # define NR_BANKS 8 | ||
199 | #endif | ||
200 | |||
201 | struct membank { | ||
202 | unsigned long start; | ||
203 | unsigned long size; | ||
204 | int node; | ||
205 | }; | ||
206 | |||
207 | struct meminfo { | ||
208 | int nr_banks; | ||
209 | struct membank bank[NR_BANKS]; | ||
210 | }; | ||
211 | |||
212 | /* | ||
213 | * Early command line parameters. | ||
214 | */ | ||
215 | struct early_params { | ||
216 | const char *arg; | ||
217 | void (*fn)(char **p); | ||
218 | }; | ||
219 | |||
220 | #define __early_param(name,fn) \ | ||
221 | static struct early_params __early_##fn __used \ | ||
222 | __attribute__((__section__(".early_param.init"))) = { name, fn } | ||
223 | |||
224 | #endif /* __KERNEL__ */ | ||
225 | |||
226 | #endif | ||