1 /*
2 ** asm/bootinfo.h -- Definition of the Linux/m68k boot information structure
3 **
4 ** Copyright 1992 by Greg Harp
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 ** Created 09/29/92 by Greg Harp
11 **
12 ** 5/2/94 Roman Hodek:
13 ** Added bi_atari part of the machine dependent union bi_un; for now it
14 ** contains just a model field to distinguish between TT and Falcon.
15 ** 26/7/96 Roman Zippel:
16 ** Renamed to setup.h; added some useful macros to allow gcc some
17 ** optimizations if possible.
18 ** 5/10/96 Geert Uytterhoeven:
19 ** Redesign of the boot information structure; renamed to bootinfo.h again
20 ** 27/11/96 Geert Uytterhoeven:
21 ** Backwards compatibility with bootinfo interface version 1.0
22 */
23
24 #ifndef _M68K_BOOTINFO_H
25 #define _M68K_BOOTINFO_H
26
27
28 /*
29 * Bootinfo definitions
30 *
31 * This is an easily parsable and extendable structure containing all
32 * information to be passed from the bootstrap to the kernel.
33 *
34 * This way I hope to keep all future changes back/forewards compatible.
35 * Thus, keep your fingers crossed...
36 *
37 * This structure is copied right after the kernel bss by the bootstrap
38 * routine.
39 */
40
41 #ifndef __ASSEMBLY__
42
43 struct bi_record {
44 unsigned short tag; /* tag ID */
45 unsigned short size; /* size of record (in bytes) */
46 unsigned long data[0]; /* data */
47 };
48
49 #endif /* __ASSEMBLY__ */
50
51
52 /*
53 * Tag Definitions
54 *
55 * Machine independent tags start counting from 0x0000
56 * Machine dependent tags start counting from 0x8000
57 */
58
59 #define BI_LAST 0x0000 /* last record (sentinel) */
60 #define BI_MACHTYPE 0x0001 /* machine type (u_long) */
61 #define BI_CPUTYPE 0x0002 /* cpu type (u_long) */
62 #define BI_FPUTYPE 0x0003 /* fpu type (u_long) */
63 #define BI_MMUTYPE 0x0004 /* mmu type (u_long) */
64 #define BI_MEMCHUNK 0x0005 /* memory chunk address and size */
65 /* (struct mem_info) */
66 #define BI_RAMDISK 0x0006 /* ramdisk address and size */
67 /* (struct mem_info) */
68 #define BI_COMMAND_LINE 0x0007 /* kernel command line parameters */
69 /* (string) */
70
71 /*
72 * Amiga-specific tags
73 */
74
75 #define BI_AMIGA_MODEL 0x8000 /* model (u_long) */
76 #define BI_AMIGA_AUTOCON 0x8001 /* AutoConfig device */
77 /* (struct ConfigDev) */
78 #define BI_AMIGA_CHIP_SIZE 0x8002 /* size of Chip RAM (u_long) */
79 #define BI_AMIGA_VBLANK 0x8003 /* VBLANK frequency (u_char) */
80 #define BI_AMIGA_PSFREQ 0x8004 /* power supply frequency (u_char) */
81 #define BI_AMIGA_ECLOCK 0x8005 /* EClock frequency (u_long) */
82 #define BI_AMIGA_CHIPSET 0x8006 /* native chipset present (u_long) */
83 #define BI_AMIGA_SERPER 0x8007 /* serial port period (u_short) */
84
85 /*
86 * Atari-specific tags
87 */
88
89 #define BI_ATARI_MCH_COOKIE 0x8000 /* _MCH cookie from TOS (u_long) */
90 #define BI_ATARI_MCH_TYPE 0x8001 /* special machine type (u_long) */
91 /* (values are ATARI_MACH_* defines */
92
93 /* mch_cookie values (upper word) */
94 #define ATARI_MCH_ST 0
95 #define ATARI_MCH_STE 1
96 #define ATARI_MCH_TT 2
97 #define ATARI_MCH_FALCON 3
98
99 /* mch_type values */
100 #define ATARI_MACH_NORMAL 0 /* no special machine type */
101 #define ATARI_MACH_MEDUSA 1 /* Medusa 040 */
102 #define ATARI_MACH_HADES 2 /* Hades 040 or 060 */
103 #define ATARI_MACH_AB40 3 /* Afterburner040 on Falcon */
104
105 /*
106 * VME-specific tags
107 */
108
109 #define BI_VME_TYPE 0x8000 /* VME sub-architecture (u_long) */
110 #define BI_VME_BRDINFO 0x8001 /* VME board information (struct) */
111
112 /* BI_VME_TYPE codes */
113 #define VME_TYPE_TP34V 0x0034 /* Tadpole TP34V */
114 #define VME_TYPE_MVME147 0x0147 /* Motorola MVME147 */
115 #define VME_TYPE_MVME162 0x0162 /* Motorola MVME162 */
116 #define VME_TYPE_MVME166 0x0166 /* Motorola MVME166 */
117 #define VME_TYPE_MVME167 0x0167 /* Motorola MVME167 */
118 #define VME_TYPE_MVME172 0x0172 /* Motorola MVME172 */
119 #define VME_TYPE_MVME177 0x0177 /* Motorola MVME177 */
120 #define VME_TYPE_BVME4000 0x4000 /* BVM Ltd. BVME4000 */
121 #define VME_TYPE_BVME6000 0x6000 /* BVM Ltd. BVME6000 */
122
123 /* BI_VME_BRDINFO is a 32 byte struct as returned by the Bug code on
124 * Motorola VME boards. Contains board number, Bug version, board
125 * configuration options, etc. See include/asm/mvme16xhw.h for details.
126 */
127
128
129 /*
130 * Macintosh-specific tags (all u_long)
131 */
132
133 #define BI_MAC_MODEL 0x8000 /* Mac Gestalt ID (model type) */
134 #define BI_MAC_VADDR 0x8001 /* Mac video base address */
135 #define BI_MAC_VDEPTH 0x8002 /* Mac video depth */
136 #define BI_MAC_VROW 0x8003 /* Mac video rowbytes */
137 #define BI_MAC_VDIM 0x8004 /* Mac video dimensions */
138 #define BI_MAC_VLOGICAL 0x8005 /* Mac video logical base */
139 #define BI_MAC_SCCBASE 0x8006 /* Mac SCC base address */
140 #define BI_MAC_BTIME 0x8007 /* Mac boot time */
141 #define BI_MAC_GMTBIAS 0x8008 /* Mac GMT timezone offset */
142 #define BI_MAC_MEMSIZE 0x8009 /* Mac RAM size (sanity check) */
143 #define BI_MAC_CPUID 0x800a /* Mac CPU type (sanity check) */
144 #define BI_MAC_ROMBASE 0x800b /* Mac system ROM base address */
145
146 /*
147 * Macintosh hardware profile data - unused, see macintosh.h for
148 * resonable type values
149 */
150
151 #define BI_MAC_VIA1BASE 0x8010 /* Mac VIA1 base address (always present) */
152 #define BI_MAC_VIA2BASE 0x8011 /* Mac VIA2 base address (type varies) */
153 #define BI_MAC_VIA2TYPE 0x8012 /* Mac VIA2 type (VIA, RBV, OSS) */
154 #define BI_MAC_ADBTYPE 0x8013 /* Mac ADB interface type */
155 #define BI_MAC_ASCBASE 0x8014 /* Mac Apple Sound Chip base address */
156 #define BI_MAC_SCSI5380 0x8015 /* Mac NCR 5380 SCSI (base address, multi) */
157 #define BI_MAC_SCSIDMA 0x8016 /* Mac SCSI DMA (base address) */
158 #define BI_MAC_SCSI5396 0x8017 /* Mac NCR 53C96 SCSI (base address, multi) */
159 #define BI_MAC_IDETYPE 0x8018 /* Mac IDE interface type */
160 #define BI_MAC_IDEBASE 0x8019 /* Mac IDE interface base address */
161 #define BI_MAC_NUBUS 0x801a /* Mac Nubus type (none, regular, pseudo) */
162 #define BI_MAC_SLOTMASK 0x801b /* Mac Nubus slots present */
163 #define BI_MAC_SCCTYPE 0x801c /* Mac SCC serial type (normal, IOP) */
164 #define BI_MAC_ETHTYPE 0x801d /* Mac builtin ethernet type (Sonic, MACE */
165 #define BI_MAC_ETHBASE 0x801e /* Mac builtin ethernet base address */
166 #define BI_MAC_PMU 0x801f /* Mac power managment / poweroff hardware */
167 #define BI_MAC_IOP_SWIM 0x8020 /* Mac SWIM floppy IOP */
168 #define BI_MAC_IOP_ADB 0x8021 /* Mac ADB IOP */
169
170 /*
171 * Mac: compatibility with old booter data format (temporarily)
172 * Fields unused with the new bootinfo can be deleted now; instead of
173 * adding new fields the struct might be splitted into a hardware address
174 * part and a hardware type part
175 */
176
177 #ifndef __ASSEMBLY__
178
179 struct mac_booter_data
180 {
181 unsigned long videoaddr;
182 unsigned long videorow;
183 unsigned long videodepth;
184 unsigned long dimensions;
185 unsigned long args;
186 unsigned long boottime;
187 unsigned long gmtbias;
188 unsigned long bootver;
189 unsigned long videological;
190 unsigned long sccbase;
191 unsigned long id;
192 unsigned long memsize;
193 unsigned long serialmf;
194 unsigned long serialhsk;
195 unsigned long serialgpi;
196 unsigned long printmf;
197 unsigned long printhsk;
198 unsigned long printgpi;
199 unsigned long cpuid;
200 unsigned long rombase;
201 unsigned long adbdelay;
202 unsigned long timedbra;
203 };
204
205 extern struct mac_booter_data
206 mac_bi_data;
207
208 #endif
209
210 /*
211 * Apollo-specific tags
212 */
213
214 #define BI_APOLLO_MODEL 0x8000 /* model (u_long) */
215
216
217
218 /*
219 * Stuff for bootinfo interface versioning
220 *
221 * At the start of kernel code, a 'struct bootversion' is located.
222 * bootstrap checks for a matching version of the interface before booting
223 * a kernel, to avoid user confusion if kernel and bootstrap don't work
224 * together :-)
225 *
226 * If incompatible changes are made to the bootinfo interface, the major
227 * number below should be stepped (and the minor reset to 0) for the
228 * appropriate machine. If a change is backward-compatible, the minor
229 * should be stepped. "Backwards-compatible" means that booting will work,
230 * but certain features may not.
231 */
232
233 #define BOOTINFOV_MAGIC 0x4249561A /* 'BIV^Z' */
234 #define MK_BI_VERSION(major,minor) (((major)<<16)+(minor))
235 #define BI_VERSION_MAJOR(v) (((v) >> 16) & 0xffff)
236 #define BI_VERSION_MINOR(v) ((v) & 0xffff)
237
238 #ifndef __ASSEMBLY__
239
240 struct bootversion {
241 unsigned short branch;
242 unsigned long magic;
243 struct {
244 unsigned long machtype;
245 unsigned long version;
246 } machversions[0];
247 };
248
249 #endif /* __ASSEMBLY__ */
250
251 #define AMIGA_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
252 #define ATARI_BOOTI_VERSION MK_BI_VERSION( 2, 1 )
253 #define MAC_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
254 #define MVME147_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
255 #define MVME16x_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
256 #define BVME6000_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
257 #define Q40_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
258
259 #ifdef BOOTINFO_COMPAT_1_0
260
261 /*
262 * Backwards compatibility with bootinfo interface version 1.0
263 */
264
265 #define COMPAT_AMIGA_BOOTI_VERSION MK_BI_VERSION( 1, 0 )
266 #define COMPAT_ATARI_BOOTI_VERSION MK_BI_VERSION( 1, 0 )
267 #define COMPAT_MAC_BOOTI_VERSION MK_BI_VERSION( 1, 0 )
268
269 #include <linux/zorro.h>
270
271 #define COMPAT_NUM_AUTO 16
272
273 struct compat_bi_Amiga {
274 int model;
275 int num_autocon;
276 struct ConfigDev autocon[COMPAT_NUM_AUTO];
277 unsigned long chip_size;
278 unsigned char vblank;
279 unsigned char psfreq;
280 unsigned long eclock;
281 unsigned long chipset;
282 unsigned long hw_present;
283 };
284
285 struct compat_bi_Atari {
286 unsigned long hw_present;
287 unsigned long mch_cookie;
288 };
289
290 #ifndef __ASSEMBLY__
291
292 struct compat_bi_Macintosh
293 {
294 unsigned long videoaddr;
295 unsigned long videorow;
296 unsigned long videodepth;
297 unsigned long dimensions;
298 unsigned long args;
299 unsigned long boottime;
300 unsigned long gmtbias;
301 unsigned long bootver;
302 unsigned long videological;
303 unsigned long sccbase;
304 unsigned long id;
305 unsigned long memsize;
306 unsigned long serialmf;
307 unsigned long serialhsk;
308 unsigned long serialgpi;
309 unsigned long printmf;
310 unsigned long printhsk;
311 unsigned long printgpi;
312 unsigned long cpuid;
313 unsigned long rombase;
314 unsigned long adbdelay;
315 unsigned long timedbra;
316 };
317
318 #endif
319
320 struct compat_mem_info {
321 unsigned long addr;
322 unsigned long size;
323 };
324
325 #define COMPAT_NUM_MEMINFO 4
326
327 #define COMPAT_CPUB_68020 0
328 #define COMPAT_CPUB_68030 1
329 #define COMPAT_CPUB_68040 2
330 #define COMPAT_CPUB_68060 3
331 #define COMPAT_FPUB_68881 5
332 #define COMPAT_FPUB_68882 6
333 #define COMPAT_FPUB_68040 7
334 #define COMPAT_FPUB_68060 8
335
336 #define COMPAT_CPU_68020 (1<<COMPAT_CPUB_68020)
337 #define COMPAT_CPU_68030 (1<<COMPAT_CPUB_68030)
338 #define COMPAT_CPU_68040 (1<<COMPAT_CPUB_68040)
339 #define COMPAT_CPU_68060 (1<<COMPAT_CPUB_68060)
340 #define COMPAT_CPU_MASK (31)
341 #define COMPAT_FPU_68881 (1<<COMPAT_FPUB_68881)
342 #define COMPAT_FPU_68882 (1<<COMPAT_FPUB_68882)
343 #define COMPAT_FPU_68040 (1<<COMPAT_FPUB_68040)
344 #define COMPAT_FPU_68060 (1<<COMPAT_FPUB_68060)
345 #define COMPAT_FPU_MASK (0xfe0)
346
347 #define COMPAT_CL_SIZE (256)
348
349 struct compat_bootinfo {
350 unsigned long machtype;
351 unsigned long cputype;
352 struct compat_mem_info memory[COMPAT_NUM_MEMINFO];
353 int num_memory;
354 unsigned long ramdisk_size;
355 unsigned long ramdisk_addr;
356 char command_line[COMPAT_CL_SIZE];
357 union {
358 struct compat_bi_Amiga bi_ami;
359 struct compat_bi_Atari bi_ata;
360 struct compat_bi_Macintosh bi_mac;
361 } bi_un;
362 };
363
364 #define bi_amiga bi_un.bi_ami
365 #define bi_atari bi_un.bi_ata
366 #define bi_mac bi_un.bi_mac
367
368 #endif /* BOOTINFO_COMPAT_1_0 */
369
370
371 #endif /* _M68K_BOOTINFO_H */
372
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