patch-2.1.17 linux/include/asm-m68k/bootinfo.h

• Lines: 216
• Date: Fri Dec 20 11:20:02 1996
• Orig file: v2.1.16/linux/include/asm-m68k/bootinfo.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v2.1.16/linux/include/asm-m68k/bootinfo.h linux/include/asm-m68k/bootinfo.h
@@ -0,0 +1,215 @@
+/*
+** asm/bootinfo.h -- Definition of the Linux/m68k boot information structure
+**
+** Copyright 1992 by Greg Harp
+**
+** This file is subject to the terms and conditions of the GNU General Public
+** License.  See the file COPYING in the main directory of this archive
+** for more details.
+**
+** Created 09/29/92 by Greg Harp
+**
+** 5/2/94 Roman Hodek:
+**   Added bi_atari part of the machine dependent union bi_un; for now it
+**   contains just a model field to distinguish between TT and Falcon.
+** 26/7/96 Roman Zippel:
+**   Renamed to setup.h; added some useful macros to allow gcc some
+**   optimizations if possible.
+** 5/10/96 Geert Uytterhoeven:
+**   Redesign of the boot information structure; renamed to bootinfo.h again
+** 27/11/96 Geert Uytterhoeven:
+**   Backwards compatibility with bootinfo interface version 1.0
+*/
+
+#ifndef _M68K_BOOTINFO_H
+#define _M68K_BOOTINFO_H
+
+
+    /*
+     *  Bootinfo definitions
+     *
+     *  This is an easily parsable and extendable structure containing all
+     *  information to be passed from the bootstrap to the kernel.
+     *
+     *  This way I hope to keep all future changes back/forewards compatible.
+     *  Thus, keep your fingers crossed...
+     *
+     *  This structure is copied right after the kernel bss by the bootstrap
+     *  routine.
+     */
+
+#ifndef __ASSEMBLY__
+
+struct bi_record {
+    unsigned short tag;			/* tag ID */
+    unsigned short size;		/* size of record (in bytes) */
+    unsigned long data[0];		/* data */
+};
+
+#else /* __ASSEMBLY__ */
+
+BIR_tag		= 0
+BIR_size	= BIR_tag+2
+BIR_data	= BIR_size+2
+
+#endif /* __ASSEMBLY__ */
+
+
+    /*
+     *  Tag Definitions
+     *
+     *  Machine independent tags start counting from 0x0000
+     *  Machine dependent tags start counting from 0x8000
+     */
+
+#define BI_LAST			0x0000	/* last record (sentinel) */
+#define BI_MACHTYPE		0x0001	/* machine type (u_long) */
+#define BI_CPUTYPE		0x0002	/* cpu type (u_long) */
+#define BI_FPUTYPE		0x0003	/* fpu type (u_long) */
+#define BI_MMUTYPE		0x0004	/* mmu type (u_long) */
+#define BI_MEMCHUNK		0x0005	/* memory chunk address and size */
+					/* (struct mem_info) */
+#define BI_RAMDISK		0x0006	/* ramdisk address and size */
+					/* (struct mem_info) */
+#define BI_COMMAND_LINE		0x0007	/* kernel command line parameters */
+					/* (string) */
+
+    /*
+     *  Amiga-specific tags
+     */
+
+#define BI_AMIGA_MODEL		0x8000	/* model (u_long) */
+#define BI_AMIGA_AUTOCON	0x8001	/* AutoConfig device */
+					/* (struct ConfigDev) */
+#define BI_AMIGA_CHIP_SIZE	0x8002	/* size of Chip RAM (u_long) */
+#define BI_AMIGA_VBLANK		0x8003	/* VBLANK frequency (u_char) */
+#define BI_AMIGA_PSFREQ		0x8004	/* power supply frequency (u_char) */
+#define BI_AMIGA_ECLOCK		0x8005	/* EClock frequency (u_long) */
+#define BI_AMIGA_CHIPSET	0x8006	/* native chipset present (u_long) */
+#define BI_AMIGA_SERPER		0x8007	/* serial port period (u_short) */
+
+    /*
+     *  Atari-specific tags
+     */
+
+#define BI_ATARI_MCH_COOKIE	0x8000	/* _MCH cookie from TOS (u_long) */
+
+
+    /*
+     * Stuff for bootinfo interface versioning
+     *
+     * At the start of kernel code, a 'struct bootversion' is located.
+     * bootstrap checks for a matching version of the interface before booting
+     * a kernel, to avoid user confusion if kernel and bootstrap don't work
+     * together :-)
+     *
+     * If incompatible changes are made to the bootinfo interface, the major
+     * number below should be stepped (and the minor reset to 0) for the
+     * appropriate machine. If a change is backward-compatible, the minor
+     * should be stepped. "Backwards-compatible" means that booting will work,
+     * but certain features may not.
+     */
+
+#define BOOTINFOV_MAGIC			0x4249561A	/* 'BIV^Z' */
+#define MK_BI_VERSION(major,minor)	(((major)<<16)+(minor))
+#define BI_VERSION_MAJOR(v)		(((v) >> 16) & 0xffff)
+#define BI_VERSION_MINOR(v)		((v) & 0xffff)
+
+#ifndef __ASSEMBLY__
+
+struct bootversion {
+    unsigned short branch;
+    unsigned long magic;
+    struct {
+	unsigned long machtype;
+	unsigned long version;
+    } machversions[0];
+};
+
+#endif /* __ASSEMBLY__ */
+
+#define AMIGA_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )
+#define ATARI_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )
+
+
+#ifdef BOOTINFO_COMPAT_1_0
+
+    /*
+     *  Backwards compatibility with bootinfo interface version 1.0
+     */
+
+#define COMPAT_AMIGA_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )
+#define COMPAT_ATARI_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )
+
+#include <linux/config.h>
+#include <asm/zorro.h>
+
+#define COMPAT_NUM_AUTO    16
+
+struct compat_bi_Amiga {
+    int model;
+    int num_autocon;
+    struct ConfigDev autocon[COMPAT_NUM_AUTO];
+    unsigned long chip_size;
+    unsigned char vblank;
+    unsigned char psfreq;
+    unsigned long eclock;
+    unsigned long chipset;
+    unsigned long hw_present;
+};
+
+struct compat_bi_Atari {
+    unsigned long hw_present;
+    unsigned long mch_cookie;
+};
+
+struct compat_mem_info {
+    unsigned long addr;
+    unsigned long size;
+};
+
+#define COMPAT_NUM_MEMINFO  4
+
+#define COMPAT_CPUB_68020 0
+#define COMPAT_CPUB_68030 1
+#define COMPAT_CPUB_68040 2
+#define COMPAT_CPUB_68060 3
+#define COMPAT_FPUB_68881 5
+#define COMPAT_FPUB_68882 6
+#define COMPAT_FPUB_68040 7
+#define COMPAT_FPUB_68060 8
+
+#define COMPAT_CPU_68020    (1<<COMPAT_CPUB_68020)
+#define COMPAT_CPU_68030    (1<<COMPAT_CPUB_68030)
+#define COMPAT_CPU_68040    (1<<COMPAT_CPUB_68040)
+#define COMPAT_CPU_68060    (1<<COMPAT_CPUB_68060)
+#define COMPAT_CPU_MASK     (31)
+#define COMPAT_FPU_68881    (1<<COMPAT_FPUB_68881)
+#define COMPAT_FPU_68882    (1<<COMPAT_FPUB_68882)
+#define COMPAT_FPU_68040    (1<<COMPAT_FPUB_68040)
+#define COMPAT_FPU_68060    (1<<COMPAT_FPUB_68060)
+#define COMPAT_FPU_MASK     (0xfe0)
+
+#define COMPAT_CL_SIZE      (256)
+
+struct compat_bootinfo {
+    unsigned long machtype;
+    unsigned long cputype;
+    struct compat_mem_info memory[COMPAT_NUM_MEMINFO];
+    int num_memory;
+    unsigned long ramdisk_size;
+    unsigned long ramdisk_addr;
+    char command_line[COMPAT_CL_SIZE];
+    union {
+	struct compat_bi_Amiga bi_ami;
+	struct compat_bi_Atari bi_ata;
+    } bi_un;
+};
+
+#define bi_amiga	bi_un.bi_ami
+#define bi_atari	bi_un.bi_ata
+
+#endif /* BOOTINFO_COMPAT_1_0 */
+
+
+#endif /* _M68K_BOOTINFO_H */