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 * 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 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