include/asm-m68k/bootinfo.h

   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 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 */