LXR linux/arch/m68k/include/asm/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
  43struct 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
 179struct 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
 205extern 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
 246struct 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
 280struct 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
 292struct compat_bi_Atari {
 293    unsigned long hw_present;
 294    unsigned long mch_cookie;
 295};
 296
 297#ifndef __ASSEMBLY__
 298
 299struct 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
 327struct 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
 356struct 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