diff options
Diffstat (limited to 'include/asm-arm/setup.h')
-rw-r--r-- | include/asm-arm/setup.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/include/asm-arm/setup.h b/include/asm-arm/setup.h new file mode 100644 index 000000000000..adcbd79762bf --- /dev/null +++ b/include/asm-arm/setup.h | |||
@@ -0,0 +1,218 @@ | |||
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 | #define COMMAND_LINE_SIZE 1024 | ||
18 | |||
19 | /* The list ends with an ATAG_NONE node. */ | ||
20 | #define ATAG_NONE 0x00000000 | ||
21 | |||
22 | struct tag_header { | ||
23 | u32 size; | ||
24 | u32 tag; | ||
25 | }; | ||
26 | |||
27 | /* The list must start with an ATAG_CORE node */ | ||
28 | #define ATAG_CORE 0x54410001 | ||
29 | |||
30 | struct tag_core { | ||
31 | u32 flags; /* bit 0 = read-only */ | ||
32 | u32 pagesize; | ||
33 | u32 rootdev; | ||
34 | }; | ||
35 | |||
36 | /* it is allowed to have multiple ATAG_MEM nodes */ | ||
37 | #define ATAG_MEM 0x54410002 | ||
38 | |||
39 | struct tag_mem32 { | ||
40 | u32 size; | ||
41 | u32 start; /* physical start address */ | ||
42 | }; | ||
43 | |||
44 | /* VGA text type displays */ | ||
45 | #define ATAG_VIDEOTEXT 0x54410003 | ||
46 | |||
47 | struct tag_videotext { | ||
48 | u8 x; | ||
49 | u8 y; | ||
50 | u16 video_page; | ||
51 | u8 video_mode; | ||
52 | u8 video_cols; | ||
53 | u16 video_ega_bx; | ||
54 | u8 video_lines; | ||
55 | u8 video_isvga; | ||
56 | u16 video_points; | ||
57 | }; | ||
58 | |||
59 | /* describes how the ramdisk will be used in kernel */ | ||
60 | #define ATAG_RAMDISK 0x54410004 | ||
61 | |||
62 | struct tag_ramdisk { | ||
63 | u32 flags; /* bit 0 = load, bit 1 = prompt */ | ||
64 | u32 size; /* decompressed ramdisk size in _kilo_ bytes */ | ||
65 | u32 start; /* starting block of floppy-based RAM disk image */ | ||
66 | }; | ||
67 | |||
68 | /* describes where the compressed ramdisk image lives (virtual address) */ | ||
69 | /* | ||
70 | * this one accidentally used virtual addresses - as such, | ||
71 | * it's deprecated. | ||
72 | */ | ||
73 | #define ATAG_INITRD 0x54410005 | ||
74 | |||
75 | /* describes where the compressed ramdisk image lives (physical address) */ | ||
76 | #define ATAG_INITRD2 0x54420005 | ||
77 | |||
78 | struct tag_initrd { | ||
79 | u32 start; /* physical start address */ | ||
80 | u32 size; /* size of compressed ramdisk image in bytes */ | ||
81 | }; | ||
82 | |||
83 | /* board serial number. "64 bits should be enough for everybody" */ | ||
84 | #define ATAG_SERIAL 0x54410006 | ||
85 | |||
86 | struct tag_serialnr { | ||
87 | u32 low; | ||
88 | u32 high; | ||
89 | }; | ||
90 | |||
91 | /* board revision */ | ||
92 | #define ATAG_REVISION 0x54410007 | ||
93 | |||
94 | struct tag_revision { | ||
95 | u32 rev; | ||
96 | }; | ||
97 | |||
98 | /* initial values for vesafb-type framebuffers. see struct screen_info | ||
99 | * in include/linux/tty.h | ||
100 | */ | ||
101 | #define ATAG_VIDEOLFB 0x54410008 | ||
102 | |||
103 | struct tag_videolfb { | ||
104 | u16 lfb_width; | ||
105 | u16 lfb_height; | ||
106 | u16 lfb_depth; | ||
107 | u16 lfb_linelength; | ||
108 | u32 lfb_base; | ||
109 | u32 lfb_size; | ||
110 | u8 red_size; | ||
111 | u8 red_pos; | ||
112 | u8 green_size; | ||
113 | u8 green_pos; | ||
114 | u8 blue_size; | ||
115 | u8 blue_pos; | ||
116 | u8 rsvd_size; | ||
117 | u8 rsvd_pos; | ||
118 | }; | ||
119 | |||
120 | /* command line: \0 terminated string */ | ||
121 | #define ATAG_CMDLINE 0x54410009 | ||
122 | |||
123 | struct tag_cmdline { | ||
124 | char cmdline[1]; /* this is the minimum size */ | ||
125 | }; | ||
126 | |||
127 | /* acorn RiscPC specific information */ | ||
128 | #define ATAG_ACORN 0x41000101 | ||
129 | |||
130 | struct tag_acorn { | ||
131 | u32 memc_control_reg; | ||
132 | u32 vram_pages; | ||
133 | u8 sounddefault; | ||
134 | u8 adfsdrives; | ||
135 | }; | ||
136 | |||
137 | /* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */ | ||
138 | #define ATAG_MEMCLK 0x41000402 | ||
139 | |||
140 | struct tag_memclk { | ||
141 | u32 fmemclk; | ||
142 | }; | ||
143 | |||
144 | struct tag { | ||
145 | struct tag_header hdr; | ||
146 | union { | ||
147 | struct tag_core core; | ||
148 | struct tag_mem32 mem; | ||
149 | struct tag_videotext videotext; | ||
150 | struct tag_ramdisk ramdisk; | ||
151 | struct tag_initrd initrd; | ||
152 | struct tag_serialnr serialnr; | ||
153 | struct tag_revision revision; | ||
154 | struct tag_videolfb videolfb; | ||
155 | struct tag_cmdline cmdline; | ||
156 | |||
157 | /* | ||
158 | * Acorn specific | ||
159 | */ | ||
160 | struct tag_acorn acorn; | ||
161 | |||
162 | /* | ||
163 | * DC21285 specific | ||
164 | */ | ||
165 | struct tag_memclk memclk; | ||
166 | } u; | ||
167 | }; | ||
168 | |||
169 | struct tagtable { | ||
170 | u32 tag; | ||
171 | int (*parse)(const struct tag *); | ||
172 | }; | ||
173 | |||
174 | #define __tag __attribute_used__ __attribute__((__section__(".taglist"))) | ||
175 | #define __tagtable(tag, fn) \ | ||
176 | static struct tagtable __tagtable_##fn __tag = { tag, fn } | ||
177 | |||
178 | #define tag_member_present(tag,member) \ | ||
179 | ((unsigned long)(&((struct tag *)0L)->member + 1) \ | ||
180 | <= (tag)->hdr.size * 4) | ||
181 | |||
182 | #define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size)) | ||
183 | #define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2) | ||
184 | |||
185 | #define for_each_tag(t,base) \ | ||
186 | for (t = base; t->hdr.size; t = tag_next(t)) | ||
187 | |||
188 | /* | ||
189 | * Memory map description | ||
190 | */ | ||
191 | #ifdef CONFIG_ARCH_LH7A40X | ||
192 | # define NR_BANKS 16 | ||
193 | #else | ||
194 | # define NR_BANKS 8 | ||
195 | #endif | ||
196 | |||
197 | struct meminfo { | ||
198 | int nr_banks; | ||
199 | struct { | ||
200 | unsigned long start; | ||
201 | unsigned long size; | ||
202 | int node; | ||
203 | } bank[NR_BANKS]; | ||
204 | }; | ||
205 | |||
206 | /* | ||
207 | * Early command line parameters. | ||
208 | */ | ||
209 | struct early_params { | ||
210 | const char *arg; | ||
211 | void (*fn)(char **p); | ||
212 | }; | ||
213 | |||
214 | #define __early_param(name,fn) \ | ||
215 | static struct early_params __early_##fn __attribute_used__ \ | ||
216 | __attribute__((__section__("__early_param"))) = { name, fn } | ||
217 | |||
218 | #endif | ||