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344 lines
11 KiB
C
344 lines
11 KiB
C
/*
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** asm/setup.h -- Definition of the Linux/m68k boot information structure
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**
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** Copyright 1992 by Greg Harp
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**
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** This file is subject to the terms and conditions of the GNU General Public
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** License. See the file COPYING in the main directory of this archive
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** for more details.
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**
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** Created 09/29/92 by Greg Harp
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**
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** 5/2/94 Roman Hodek:
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** Added bi_atari part of the machine dependent union bi_un; for now it
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** contains just a model field to distinguish between TT and Falcon.
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** 26/7/96 Roman Zippel:
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** Renamed to setup.h; added some useful macros to allow gcc some
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** optimizations if possible.
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** 09/02/04 Laurent Vivier
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** Remove some parts and add it in EMILE
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*/
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#ifndef __ASSEMBLY__
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struct mem_info {
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unsigned long addr; /* physical address of memory chunk */
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unsigned long size; /* length of memory chunk (in bytes) */
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};
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struct bi_Macintosh
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{
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unsigned long videoaddr;
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unsigned long videorow;
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unsigned long videodepth;
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unsigned long dimensions;
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unsigned long args;
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unsigned long boottime;
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unsigned long gmtbias;
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unsigned long bootver;
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unsigned long videological;
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unsigned long scc_read;
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unsigned long scc_write;
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unsigned long id;
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unsigned long memsize;
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unsigned long serialmf;
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unsigned long serialhsk;
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unsigned long serialgpi;
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unsigned long printf;
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unsigned long printhsk;
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unsigned long printgpi;
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unsigned long cpuid;
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unsigned long rombase;
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unsigned long adbdelay;
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unsigned long timedbra;
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#if defined(EXTENDED_HW_MAP)
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#define HW_MAP_VIA1 0x00000001
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#define HW_MAP_VIA2_VIA 0x00000002
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#define HW_MAP_VIA2_RBV 0x00000004
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#define HW_MAP_VIA2_OSS 0x00000008
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#define HW_MAP_ADB_IOP 0x00000010
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#define HW_MAP_ADB_IISI 0x00000020
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#define HW_MAP_ADB_CUDA 0x00000040
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#define HW_MAP_ADB_PB1 0x00000080
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#define HW_MAP_ASC 0x00000100
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#define HW_MAP_SCSI5380 0x00000200
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#define HW_MAP_SCSI5380DMA 0x00000400
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#define HW_MAP_SCSI5396 0x00000800
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#define HW_MAP_IDE_PB 0x00001000
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#define HW_MAP_IDE_QUADRA 0x00002000
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#define HW_MAP_NUBUS 0x00004000
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#define HW_MAP_SCC_IOP 0x00008000
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unsigned long HwMap;
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unsigned long VIA1Base;
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unsigned long VIA2Base;
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unsigned long ASCBase;
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unsigned long SCSIBase;
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unsigned long NubusMap;
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#endif
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};
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#else
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#define BI_videoaddr BI_un
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#define BI_videorow BI_videoaddr+4
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#define BI_videodepth BI_videorow+4
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#define BI_dimensions BI_videodepth+4
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#define BI_args BI_dimensions+4
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#endif
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#define NUM_MEMINFO 4
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#define MACH_AMIGA 1
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#define MACH_ATARI 2
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#define MACH_MAC 3
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/*
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* CPU and FPU types
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*/
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#define CPUB_68020 0
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#define CPUB_68030 1
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#define CPUB_68040 2
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#define CPUB_68060 3
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#define FPUB_68881 5
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#define FPUB_68882 6
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#define FPUB_68040 7 /* Internal FPU */
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#define FPUB_68060 8 /* Internal FPU */
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#define CPU_68020 (1<<CPUB_68020)
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#define CPU_68030 (1<<CPUB_68030)
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#define CPU_68040 (1<<CPUB_68040)
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#define CPU_68060 (1<<CPUB_68060)
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#define CPU_MASK (31)
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#define FPU_68881 (1<<FPUB_68881)
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#define FPU_68882 (1<<FPUB_68882)
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#define FPU_68040 (1<<FPUB_68040) /* Internal FPU */
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#define FPU_68060 (1<<FPUB_68060) /* Internal FPU */
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#define FPU_MASK (0xfe0)
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#define CL_SIZE (256)
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#ifndef __ASSEMBLY__
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struct bootinfo {
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unsigned long machtype; /* machine type */
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unsigned long cputype; /* system CPU & FPU */
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struct mem_info memory[NUM_MEMINFO]; /* memory description */
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unsigned long num_memory; /* # of memory blocks found */
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unsigned long ramdisk_size; /* ramdisk size in 1024 byte blocks */
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unsigned long ramdisk_addr; /* address of the ram disk in mem */
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char command_line[CL_SIZE]; /* kernel command line parameters */
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union {
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struct bi_Macintosh bi_mac; /* Mac specific information */
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} bi_un;
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};
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#define bi_mac bi_un.bi_mac
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extern struct bootinfo boot_info;
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#else /* __ASSEMBLY__ */
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BI_machtype = 0
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BI_cputype = BI_machtype+4
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BI_memory = BI_cputype+4
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BI_num_memory = BI_memory+(MI_sizeof*NUM_MEMINFO)
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BI_ramdisk_size = BI_num_memory+4
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BI_ramdisk_addr = BI_ramdisk_size+4
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BI_command_line = BI_ramdisk_addr+4
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BI_un = BI_command_line+CL_SIZE
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#endif /* __ASSEMBLY__ */
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/*
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* Stuff for bootinfo interface versioning
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*
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* At the start of kernel code, a 'struct bootversion' is located. bootstrap
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* checks for a matching version of the interface before booting a kernel, to
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* avoid user confusion if kernel and bootstrap don't work together :-)
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*
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* If incompatible changes are made to the bootinfo interface, the major
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* number below should be stepped (and the minor reset to 0) for the
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* appropriate machine. If a change is backward-compatible, the minor should
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* be stepped. "Backwards-compatible" means that booting will work, but
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* certain features may not.
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*/
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#define BOOTINFOV_MAGIC 0x4249561A /* 'BIV^Z' */
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#define MK_BI_VERSION(major,minor) (((major)<<16)+(minor))
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#define BI_VERSION_MAJOR(v) (((v) >> 16) & 0xffff)
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#define BI_VERSION_MINOR(v) ((v) & 0xffff)
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#ifndef __ASSEMBLY__
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struct bootversion {
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unsigned short branch;
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unsigned long magic;
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struct {
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unsigned long machtype;
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unsigned long version;
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} machversions[1];
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};
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#endif /* __ASSEMBLY__ */
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#define AMIGA_BOOTI_VERSION MK_BI_VERSION( 1, 0 )
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#define ATARI_BOOTI_VERSION MK_BI_VERSION( 1, 0 )
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#define MAC_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
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/************************************************************************
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* Version 2 bootinfo structure and new defs
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*/
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/*
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* CPU, FPU and MMU types
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*
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* Note: we may rely on the following equalities:
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*
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* CPU_68020 == MMU_68851
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* CPU_68030 == MMU_68030
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* CPU_68040 == FPU_68040 == MMU_68040 (not strictly, think of 68LC040!)
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* CPU_68060 == FPU_68060 == MMU_68060
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*/
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#define V2_CPUB_68020 0
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#define V2_CPUB_68030 1
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#define V2_CPUB_68040 2
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#define V2_CPUB_68060 3
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#define V2_CPU_68020 (1<<V2_CPUB_68020)
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#define V2_CPU_68030 (1<<V2_CPUB_68030)
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#define V2_CPU_68040 (1<<V2_CPUB_68040)
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#define V2_CPU_68060 (1<<V2_CPUB_68060)
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#define V2_FPUB_68881 0
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#define V2_FPUB_68882 1
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#define V2_FPUB_68040 2 /* Internal FPU */
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#define V2_FPUB_68060 3 /* Internal FPU */
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#define V2_FPUB_SUNFPA 4 /* Sun-3 FPA */
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#define V2_FPU_68881 (1<<V2_FPUB_68881)
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#define V2_FPU_68882 (1<<V2_FPUB_68882)
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#define V2_FPU_68040 (1<<V2_FPUB_68040)
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#define V2_FPU_68060 (1<<V2_FPUB_68060)
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#define V2_FPU_SUNFPA (1<<V2_FPUB_SUNFPA)
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#define V2_MMUB_68851 0
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#define V2_MMUB_68030 1 /* Internal MMU */
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#define V2_MMUB_68040 2 /* Internal MMU */
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#define V2_MMUB_68060 3 /* Internal MMU */
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#define V2_MMUB_APOLLO 4 /* Custom Apollo */
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#define V2_MMUB_SUN3 5 /* Custom Sun-3 */
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#define V2_MMU_68851 (1<<V2_MMUB_68851)
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#define V2_MMU_68030 (1<<V2_MMUB_68030)
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#define V2_MMU_68040 (1<<V2_MMUB_68040)
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#define V2_MMU_68060 (1<<V2_MMUB_68060)
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#define V2_MMU_SUN3 (1<<V2_MMUB_SUN3)
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#define V2_MMU_APOLLO (1<<V2_MMUB_APOLLO)
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struct bi2_record {
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unsigned short tag; /* tag ID */
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unsigned short size; /* size of record (in bytes) */
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unsigned char data[0]; /* data */
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};
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struct bi2_record_list {
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struct bi2_record *bi2_rec;
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struct bi2_record_list *next;
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};
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/*
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* Tag Definitions
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*
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* Machine independent tags start counting from 0x0000
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* Machine dependent tags start counting from 0x8000
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*/
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#define V2_BI_LAST 0x0000 /* last record (sentinel) */
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#define V2_BI_MACHTYPE 0x0001 /* machine type (u_long) */
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#define V2_BI_CPUTYPE 0x0002 /* cpu type (u_long) */
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#define V2_BI_FPUTYPE 0x0003 /* fpu type (u_long) */
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#define V2_BI_MMUTYPE 0x0004 /* mmu type (u_long) */
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#define V2_BI_MEMCHUNK 0x0005 /* memory chunk address and size */
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/* (struct mem_info) */
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#define V2_BI_RAMDISK 0x0006 /* ramdisk address and size */
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/* (struct mem_info) */
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#define V2_BI_COMMAND_LINE 0x0007 /* kernel command line parameters */
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/* (string) */
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/*
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* Macintosh-specific tags
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*/
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#define V2_BI_MAC_MODEL 0x8000 /* Mac Gestalt ID (model type) */
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#define V2_BI_MAC_VADDR 0x8001 /* Mac video base address */
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#define V2_BI_MAC_VDEPTH 0x8002 /* Mac video depth */
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#define V2_BI_MAC_VROW 0x8003 /* Mac video rowbytes */
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#define V2_BI_MAC_VDIM 0x8004 /* Mac video dimensions */
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#define V2_BI_MAC_VLOGICAL 0x8005 /* Mac video logical base */
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#define V2_BI_MAC_SCCBASE_READ 0x8006 /* Mac SCC base address */
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#define V2_BI_MAC_BTIME 0x8007 /* Mac boot time */
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#define V2_BI_MAC_GMTBIAS 0x8008 /* Mac GMT timezone offset */
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#define V2_BI_MAC_MEMSIZE 0x8009 /* Mac RAM size (sanity check) */
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#define V2_BI_MAC_CPUID 0x800a /* Mac CPU type (sanity check) */
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#define V2_BI_MAC_ROMBASE 0x800b /* Mac system ROM base address */
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#define V2_BI_MAC_SCCBASE_WRITE 0x800c /* Mac SCC base address */
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/*
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* Macintosh hardware profile data - unused, see macintosh.h for
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* resonable type values
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*/
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#define V2_BI_MAC_VIA1BASE 0x8010 /* Mac VIA1 base address (always present) */
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#define V2_BI_MAC_VIA2BASE 0x8011 /* Mac VIA2 base address (type varies) */
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#define V2_BI_MAC_VIA2TYPE 0x8012 /* Mac VIA2 type (VIA, RBV, OSS) */
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#define V2_BI_MAC_ADBTYPE 0x8013 /* Mac ADB interface type */
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#define V2_BI_MAC_ASCBASE 0x8014 /* Mac Apple Sound Chip base address */
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#define V2_BI_MAC_SCSI5380 0x8015 /* Mac NCR 5380 SCSI (base address, multi) */
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#define V2_BI_MAC_SCSIDMA 0x8016 /* Mac SCSI DMA (base address) */
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#define V2_BI_MAC_SCSI5396 0x8017 /* Mac NCR 53C96 SCSI (base address, multi) */
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#define V2_BI_MAC_IDETYPE 0x8018 /* Mac IDE interface type */
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#define V2_BI_MAC_IDEBASE 0x8019 /* Mac IDE interface base address */
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#define V2_BI_MAC_NUBUS 0x801a /* Mac Nubus type (none, regular, pseudo) */
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#define V2_BI_MAC_SLOTMASK 0x801b /* Mac Nubus slots present */
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#define V2_BI_MAC_SCCTYPE 0x801c /* Mac SCC serial type (normal, IOP) */
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#define V2_BI_MAC_ETHTYPE 0x801d /* Mac builtin ethernet type (Sonic, MACE */
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#define V2_BI_MAC_ETHBASE 0x801e /* Mac builtin ethernet base address */
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#define V2_BI_MAC_PMU 0x801f /* Mac power managment / poweroff hardware */
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#define V2_BI_MAC_IOP_SWIM 0x8020 /* Mac SWIM floppy IOP */
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#define V2_BI_MAC_IOP_ADB 0x8021 /* Mac ADB IOP */
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/*
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* Type definitions
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*/
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#define V2_VIA2_VIA 1
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#define V2_VIA2_RBV 2
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#define V2_VIA2_OSS 3
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#define V2_ADB_II 1
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#define V2_ADB_IISI 2
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#define V2_ADB_CUDA 3
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#define V2_ADB_PB1 4
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#define V2_ADB_PB2 5
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#define V2_ADB_IOP 6
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#define V2_IDE_BASE 0x50F1A000
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#define V2_IDE_QUADRA 1
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#define V2_IDE_PB 2
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#define V2_NUBUS_NORMAL 1
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#define V2_NUBUS_PSEUDO 2
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#define V2_SCC_NORMAL 1
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#define V2_SCC_IOP 4
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/* End version 2 bootinfo
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***********************************************************************/
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extern void bootinfo_init(char* command_line, char* ramdisk_start, unsigned long ramdisk_size);
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extern void set_kernel_bootinfo(char *dst);
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