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      *  reasonable 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 management / 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      *  HP300-specific tags
218      */
219 
220 #define BI_HP300_MODEL		0x8000	/* model (u_long) */
221 #define BI_HP300_UART_SCODE	0x8001	/* UART select code (u_long) */
222 #define BI_HP300_UART_ADDR	0x8002	/* phys. addr of UART (u_long) */
223 
224     /*
225      * Stuff for bootinfo interface versioning
226      *
227      * At the start of kernel code, a 'struct bootversion' is located.
228      * bootstrap checks for a matching version of the interface before booting
229      * a kernel, to avoid user confusion if kernel and bootstrap don't work
230      * together :-)
231      *
232      * If incompatible changes are made to the bootinfo interface, the major
233      * number below should be stepped (and the minor reset to 0) for the
234      * appropriate machine. If a change is backward-compatible, the minor
235      * should be stepped. "Backwards-compatible" means that booting will work,
236      * but certain features may not.
237      */
238 
239 #define BOOTINFOV_MAGIC			0x4249561A	/* 'BIV^Z' */
240 #define MK_BI_VERSION(major,minor)	(((major)<<16)+(minor))
241 #define BI_VERSION_MAJOR(v)		(((v) >> 16) & 0xffff)
242 #define BI_VERSION_MINOR(v)		((v) & 0xffff)
243 
244 #ifndef __ASSEMBLY__
245 
246 struct bootversion {
247     unsigned short branch;
248     unsigned long magic;
249     struct {
250 	unsigned long machtype;
251 	unsigned long version;
252     } machversions[0];
253 };
254 
255 #endif /* __ASSEMBLY__ */
256 
257 #define AMIGA_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )
258 #define ATARI_BOOTI_VERSION    MK_BI_VERSION( 2, 1 )
259 #define MAC_BOOTI_VERSION      MK_BI_VERSION( 2, 0 )
260 #define MVME147_BOOTI_VERSION  MK_BI_VERSION( 2, 0 )
261 #define MVME16x_BOOTI_VERSION  MK_BI_VERSION( 2, 0 )
262 #define BVME6000_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
263 #define Q40_BOOTI_VERSION      MK_BI_VERSION( 2, 0 )
264 #define HP300_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )
265 
266 #ifdef BOOTINFO_COMPAT_1_0
267 
268     /*
269      *  Backwards compatibility with bootinfo interface version 1.0
270      */
271 
272 #define COMPAT_AMIGA_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )
273 #define COMPAT_ATARI_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )
274 #define COMPAT_MAC_BOOTI_VERSION      MK_BI_VERSION( 1, 0 )
275 
276 #include <linux/zorro.h>
277 
278 #define COMPAT_NUM_AUTO    16
279 
280 struct compat_bi_Amiga {
281     int model;
282     int num_autocon;
283     struct ConfigDev autocon[COMPAT_NUM_AUTO];
284     unsigned long chip_size;
285     unsigned char vblank;
286     unsigned char psfreq;
287     unsigned long eclock;
288     unsigned long chipset;
289     unsigned long hw_present;
290 };
291 
292 struct compat_bi_Atari {
293     unsigned long hw_present;
294     unsigned long mch_cookie;
295 };
296 
297 #ifndef __ASSEMBLY__
298 
299 struct compat_bi_Macintosh
300 {
301 	unsigned long videoaddr;
302 	unsigned long videorow;
303 	unsigned long videodepth;
304 	unsigned long dimensions;
305 	unsigned long args;
306 	unsigned long boottime;
307 	unsigned long gmtbias;
308 	unsigned long bootver;
309 	unsigned long videological;
310 	unsigned long sccbase;
311 	unsigned long id;
312 	unsigned long memsize;
313 	unsigned long serialmf;
314 	unsigned long serialhsk;
315 	unsigned long serialgpi;
316 	unsigned long printmf;
317 	unsigned long printhsk;
318 	unsigned long printgpi;
319 	unsigned long cpuid;
320 	unsigned long rombase;
321 	unsigned long adbdelay;
322 	unsigned long timedbra;
323 };
324 
325 #endif
326 
327 struct compat_mem_info {
328     unsigned long addr;
329     unsigned long size;
330 };
331 
332 #define COMPAT_NUM_MEMINFO  4
333 
334 #define COMPAT_CPUB_68020 0
335 #define COMPAT_CPUB_68030 1
336 #define COMPAT_CPUB_68040 2
337 #define COMPAT_CPUB_68060 3
338 #define COMPAT_FPUB_68881 5
339 #define COMPAT_FPUB_68882 6
340 #define COMPAT_FPUB_68040 7
341 #define COMPAT_FPUB_68060 8
342 
343 #define COMPAT_CPU_68020    (1<<COMPAT_CPUB_68020)
344 #define COMPAT_CPU_68030    (1<<COMPAT_CPUB_68030)
345 #define COMPAT_CPU_68040    (1<<COMPAT_CPUB_68040)
346 #define COMPAT_CPU_68060    (1<<COMPAT_CPUB_68060)
347 #define COMPAT_CPU_MASK     (31)
348 #define COMPAT_FPU_68881    (1<<COMPAT_FPUB_68881)
349 #define COMPAT_FPU_68882    (1<<COMPAT_FPUB_68882)
350 #define COMPAT_FPU_68040    (1<<COMPAT_FPUB_68040)
351 #define COMPAT_FPU_68060    (1<<COMPAT_FPUB_68060)
352 #define COMPAT_FPU_MASK     (0xfe0)
353 
354 #define COMPAT_CL_SIZE      (256)
355 
356 struct compat_bootinfo {
357     unsigned long machtype;
358     unsigned long cputype;
359     struct compat_mem_info memory[COMPAT_NUM_MEMINFO];
360     int num_memory;
361     unsigned long ramdisk_size;
362     unsigned long ramdisk_addr;
363     char command_line[COMPAT_CL_SIZE];
364     union {
365 	struct compat_bi_Amiga     bi_ami;
366 	struct compat_bi_Atari     bi_ata;
367 	struct compat_bi_Macintosh bi_mac;
368     } bi_un;
369 };
370 
371 #define bi_amiga	bi_un.bi_ami
372 #define bi_atari	bi_un.bi_ata
373 #define bi_mac		bi_un.bi_mac
374 
375 #endif /* BOOTINFO_COMPAT_1_0 */
376 
377 
378 #endif /* _M68K_BOOTINFO_H */
379