setup.h

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/*
** asm/setup.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.
*/

#ifndef _M68K_SETUP_H
#define _M68K_SETUP_H

#include <linux/config.h>

#define CL_SIZE	(256)

#if 0

#include <asm/zorro.h>

/*
 * Amiga specific part of bootinfo structure.
 */

#define NUM_AUTO    16

#ifndef __ASSEMBLY__

#define AMIGAHW_DECLARE(name)	unsigned name : 1
#define AMIGAHW_SET(name)	(boot_info.bi_amiga.hw_present.name = 1)
#define AMIGAHW_PRESENT(name)	(boot_info.bi_amiga.hw_present.name)

struct bi_Amiga {
	int model;				/* Amiga Model (3000?) */
	int num_autocon;			/* # of autoconfig devices found */
	struct ConfigDev autocon[NUM_AUTO];	/* up to 16 autoconfig devices */
#ifdef HACKER_KERNEL
	void (*exit_func)(void);		/* addr of function to exit kernel */
	unsigned long chip_addr;		/* start of chip memory (bytes) */
#endif
	unsigned long chip_size;		/* size of chip memory (bytes) */
	unsigned char vblank;	 		/* VBLANK frequency */
	unsigned char psfreq; 			/* power supply frequency */
	unsigned long eclock; 			/* EClock frequency */
	unsigned long chipset;			/* native chipset present */
	struct {
		/* video hardware */
		AMIGAHW_DECLARE(AMI_VIDEO);	/* Amiga Video */
		AMIGAHW_DECLARE(AMI_BLITTER);	/* Amiga Blitter */
		AMIGAHW_DECLARE(AMBER_FF);	/* Amber Flicker Fixer */
		/* sound hardware */
		AMIGAHW_DECLARE(AMI_AUDIO);	/* Amiga Audio */
		/* disk storage interfaces */
		AMIGAHW_DECLARE(AMI_FLOPPY);	/* Amiga Floppy */
		AMIGAHW_DECLARE(A3000_SCSI);	/* SCSI (wd33c93, A3000 alike) */
		AMIGAHW_DECLARE(A4000_SCSI);	/* SCSI (ncr53c710, A4000T alike) */
		AMIGAHW_DECLARE(A1200_IDE);	/* IDE (A1200 alike) */
		AMIGAHW_DECLARE(A4000_IDE);	/* IDE (A4000 alike) */
		AMIGAHW_DECLARE(CD_ROM);	/* CD ROM drive */
		/* other I/O hardware */
		AMIGAHW_DECLARE(AMI_KEYBOARD);	/* Amiga Keyboard */
		AMIGAHW_DECLARE(AMI_MOUSE);	/* Amiga Mouse */
		AMIGAHW_DECLARE(AMI_SERIAL);	/* Amiga Serial */
		AMIGAHW_DECLARE(AMI_PARALLEL);	/* Amiga Parallel */
		/* real time clocks */
		AMIGAHW_DECLARE(A2000_CLK);	/* Hardware Clock (A2000 alike) */
		AMIGAHW_DECLARE(A3000_CLK);	/* Hardware Clock (A3000 alike) */
		/* supporting hardware */
		AMIGAHW_DECLARE(CHIP_RAM);	/* Chip RAM */
		AMIGAHW_DECLARE(PAULA);		/* Paula (8364) */
		AMIGAHW_DECLARE(DENISE);	/* Denise (8362) */
		AMIGAHW_DECLARE(DENISE_HR);	/* Denise (8373) */
		AMIGAHW_DECLARE(LISA);		/* Lisa (8375) */
		AMIGAHW_DECLARE(AGNUS_PAL);	/* Normal/Fat PAL Agnus (8367/8371) */
		AMIGAHW_DECLARE(AGNUS_NTSC);	/* Normal/Fat NTSC Agnus (8361/8370) */
		AMIGAHW_DECLARE(AGNUS_HR_PAL);	/* Fat Hires PAL Agnus (8372) */
		AMIGAHW_DECLARE(AGNUS_HR_NTSC);	/* Fat Hires NTSC Agnus (8372) */
		AMIGAHW_DECLARE(ALICE_PAL);	/* PAL Alice (8374) */
		AMIGAHW_DECLARE(ALICE_NTSC);	/* NTSC Alice (8374) */
		AMIGAHW_DECLARE(MAGIC_REKICK);	/* A3000 Magic Hard Rekick */
		AMIGAHW_DECLARE(ZORRO);		/* Zorro AutoConfig */
	} hw_present;
};

#else	/* __ASSEMBLY__ */
 
BI_amiga_model		= BI_un
BI_amiga_num_autcon	= BI_amiga_model+4
BI_amiga_autocon	= BI_amiga_num_autcon+4
#ifdef HACKER_KERNEL
BI_amiga_exit_func	= BI_amiga_autocon+(CD_sizeof*NUM_AUTO)
BI_amiga_chip_addr	= BI_amiga_exit_func+4
BI_amiga_chip_size	= BI_amiga_chip_addr+4
#else
BI_amiga_chip_size	= BI_amiga_autocon+(CD_sizeof*NUM_AUTO)
#endif
BI_amiga_vblank		= BI_amiga_chip_size+4
BI_amiga_psfreq		= BI_amiga_vblank+1
BI_amiga_eclock		= BI_amiga_psfreq+1
BI_amiga_chipset	= BI_amiga_eclock+4
BI_amiga_hw_present	= BI_amiga_chipset+4

#endif	/* __ASSEMBLY__ */

/* Atari specific part of bootinfo */

/*
 * Define several Hardware-Chips for indication so that for the ATARI we do
 * no longer decide whether it is a Falcon or other machine . It's just
 * important what hardware the machine uses
 */

/* ++roman 08/08/95: rewritten from ORing constants to a C bitfield */

#ifndef __ASSEMBLY__

#define ATARIHW_DECLARE(name)	unsigned name : 1
#define ATARIHW_SET(name)	(boot_info.bi_atari.hw_present.name = 1)
#define ATARIHW_PRESENT(name)	(boot_info.bi_atari.hw_present.name)

struct bi_Atari {
	struct {
		/* video hardware */
		ATARIHW_DECLARE(STND_SHIFTER);	/* ST-Shifter - no base low ! */
		ATARIHW_DECLARE(EXTD_SHIFTER);	/* STe-Shifter - 24 bit address */
		ATARIHW_DECLARE(TT_SHIFTER);	/* TT-Shifter */
		ATARIHW_DECLARE(VIDEL_SHIFTER);	/* Falcon-Shifter */
		/* sound hardware */
		ATARIHW_DECLARE(YM_2149);	/* Yamaha YM 2149 */
		ATARIHW_DECLARE(PCM_8BIT);	/* PCM-Sound in STe-ATARI */
		ATARIHW_DECLARE(CODEC);		/* CODEC Sound (Falcon) */
		/* disk storage interfaces */
		ATARIHW_DECLARE(TT_SCSI);	/* Directly mapped NCR5380 */
		ATARIHW_DECLARE(ST_SCSI);	/* NCR5380 via ST-DMA (Falcon) */
		ATARIHW_DECLARE(ACSI);		/* Standard ACSI like in STs */
		ATARIHW_DECLARE(IDE);		/* IDE Interface */
		ATARIHW_DECLARE(FDCSPEED);	/* 8/16 MHz switch for FDC */
		/* other I/O hardware */
		ATARIHW_DECLARE(ST_MFP);	/* The ST-MFP (there should
						   be no Atari without
						   it... but who knows?) */
		ATARIHW_DECLARE(TT_MFP);	/* 2nd MFP */
		ATARIHW_DECLARE(SCC);		/* Serial Communications Contr. */
		ATARIHW_DECLARE(ST_ESCC);	/* SCC Z83230 in an ST */
		ATARIHW_DECLARE(ANALOG_JOY);	/* Paddle Interface for STe
						   and Falcon */
		ATARIHW_DECLARE(MICROWIRE);	/* Microwire Interface */
		/* DMA */
		ATARIHW_DECLARE(STND_DMA);	/* 24 Bit limited ST-DMA */
		ATARIHW_DECLARE(EXTD_DMA);	/* 32 Bit ST-DMA */
		ATARIHW_DECLARE(SCSI_DMA);	/* DMA for the NCR5380 */
		ATARIHW_DECLARE(SCC_DMA);	/* DMA for the SCC */
		/* real time clocks */
		ATARIHW_DECLARE(TT_CLK);	/* TT compatible clock chip */
		ATARIHW_DECLARE(MSTE_CLK);	/* Mega ST(E) clock chip */
		/* supporting hardware */
		ATARIHW_DECLARE(SCU);		/* System Control Unit */
		ATARIHW_DECLARE(BLITTER);	/* Blitter */
		ATARIHW_DECLARE(VME);		/* VME Bus */
	} hw_present;
	unsigned long mch_cookie;		/* _MCH cookie from TOS */
};

/* mch_cookie values (upper word) */
#define	ATARI_MCH_ST		0
#define	ATARI_MCH_STE		1
#define	ATARI_MCH_TT		2
#define	ATARI_MCH_FALCON	3

struct mem_info {
	unsigned long addr;			/* physical address of memory chunk */
	unsigned long size;			/* length of memory chunk (in bytes) */
};

#else	/* __ASSEMBLY__ */

MI_addr		= 0
MI_size		= MI_addr+4
MI_sizeof	= MI_size+4

#endif /* __ASSEMBLY__ */

#define NUM_MEMINFO  4

#define MACH_AMIGA   1
#define MACH_ATARI   2
#define MACH_MAC     3

/*
 * CPU and FPU types
 */

#define CPUB_68020 0
#define CPUB_68030 1
#define CPUB_68040 2
#define CPUB_68060 3
#define FPUB_68881 5
#define FPUB_68882 6
#define FPUB_68040 7				/* Internal FPU */
#define FPUB_68060 8				/* Internal FPU */

#define CPU_68020    (1<<CPUB_68020)
#define CPU_68030    (1<<CPUB_68030)
#define CPU_68040    (1<<CPUB_68040)
#define CPU_68060    (1<<CPUB_68060)
#define CPU_MASK     (31)
#define FPU_68881    (1<<FPUB_68881)
#define FPU_68882    (1<<FPUB_68882)
#define FPU_68040    (1<<FPUB_68040)		/* Internal FPU */
#define FPU_68060    (1<<FPUB_68060)		/* Internal FPU */
#define FPU_MASK     (0xfe0)

#define CL_SIZE      (256)

/*
 * machine type definitions
 */

#if !defined(CONFIG_AMIGA)
#  define MACH_IS_AMIGA (0)
#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC)
#  define MACH_IS_AMIGA (boot_info.machtype == MACH_AMIGA)
#else
#  define CONFIG_AMIGA_ONLY
#  define MACH_IS_AMIGA (1)
#  define MACH_TYPE (MACH_AMIGA)
#endif

#if !defined(CONFIG_ATARI)
#  define MACH_IS_ATARI (0)
#elif defined(CONFIG_AMIGA) || defined(CONFIG_MAC)
#  define MACH_IS_ATARI (boot_info.machtype == MACH_ATARI)
#else
#  define CONFIG_ATARI_ONLY
#  define MACH_IS_ATARI (1)
#  define MACH_TYPE (MACH_ATARI)
#endif

#if defined(CONFIG_MAC)
#  error Currently no Mac support!
#endif

#ifndef MACH_TYPE
#  define MACH_TYPE (boot_info.machtype)
#endif

/*
 * cpu type definitions
 */

#if !defined(CONFIG_M68020)
#  define CPU_IS_020 (0)
#elif defined(CONFIG_M68030) || defined(CONFIG_M68040) || defined(CONFIG_M68060)
#  define CPU_IS_020 (boot_info.cputype & CPU_68020)
#else
#  define CONFIG_M68020_ONLY
#  define CPU_IS_020 (1)
#endif

#if !defined(CONFIG_M68030)
#  define CPU_IS_030 (0)
#elif defined(CONFIG_M68020) || defined(CONFIG_M68040) || defined(CONFIG_M68060)
#  define CPU_IS_030 (boot_info.cputype & CPU_68030)
#else
#  define CONFIG_M68030_ONLY
#  define CPU_IS_030 (1)
#endif

#if !defined(CONFIG_M68040)
#  define CPU_IS_040 (0)
#elif defined(CONFIG_M68020) || defined(CONFIG_M68030) || defined(CONFIG_M68060)
#  define CPU_IS_040 (boot_info.cputype & CPU_68040)
#else
#  define CONFIG_M68040_ONLY
#  define CPU_IS_040 (1)
#endif

#if !defined(CONFIG_M68060)
#  define CPU_IS_060 (0)
#elif defined(CONFIG_M68020) || defined(CONFIG_M68030) || defined(CONFIG_M68040)
#  define CPU_IS_060 (boot_info.cputype & CPU_68060)
#else
#  define CONFIG_M68060_ONLY
#  define CPU_IS_060 (1)
#endif

#if !defined(CONFIG_M68020) && !defined(CONFIG_M68030)
#  define CPU_IS_020_OR_030 (0)
#else
#  define CONFIG_M68020_OR_M68030
#  if defined(CONFIG_M68040) || defined(CONFIG_M68060)
#    define CPU_IS_020_OR_030 (!m68k_is040or060)
#  else
#    define CONFIG_M68020_OR_M68030_ONLY
#    define CPU_IS_020_OR_030 (1)
#  endif
#endif

#if !defined(CONFIG_M68040) && !defined(CONFIG_M68060)
#  define CPU_IS_040_OR_060 (0)
#else
#  define CONFIG_M68040_OR_M68060
#  if defined(CONFIG_M68020) || defined(CONFIG_M68030)
#    define CPU_IS_040_OR_060 (m68k_is040or060)
#  else
#    define CONFIG_M68040_OR_M68060_ONLY
#    define CPU_IS_040_OR_060 (1)
#  endif
#endif

#define CPU_TYPE (boot_info.cputype)

#ifndef __ASSEMBLY__
#ifdef __KERNEL__
	/*
	 * m68k_is040or060 is != 0 for a '040 or higher;
	 * used numbers are 4 for 68040 and 6 for 68060.
	 */

extern int m68k_is040or060;
#endif

struct bootinfo {
	unsigned long machtype;			/* machine type */
	unsigned long cputype;			/* system CPU & FPU */
	struct mem_info memory[NUM_MEMINFO];	/* memory description */
	int num_memory;				/* # of memory blocks found */
	unsigned long ramdisk_size;		/* ramdisk size in 1024 byte blocks */
	unsigned long ramdisk_addr;		/* address of the ram disk in mem */
	char command_line[CL_SIZE];		/* kernel command line parameters */
	union {
		struct bi_Amiga bi_ami; 	/* Amiga specific information */
		struct bi_Atari bi_ata; 	/* Atari specific information */
	} bi_un;
};
#define bi_amiga bi_un.bi_ami
#define bi_atari bi_un.bi_ata
#define bi_mac	 bi_un.bi_mac

extern struct bootinfo
    boot_info;

#else	/* __ASSEMBLY__ */

BI_machtype	= 0
BI_cputype	= BI_machtype+4
BI_memory	= BI_cputype+4
BI_num_memory	= BI_memory+(MI_sizeof*NUM_MEMINFO)
BI_ramdisk_size	= BI_num_memory+4
BI_ramdisk_addr	= BI_ramdisk_size+4
BI_command_line	= BI_ramdisk_addr+4
BI_un		= BI_command_line+CL_SIZE

#endif /* __ASSEMBLY__ */


/*
 * 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( 1, 0 )
#define ATARI_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )

#endif


#endif /* _M68K_SETUP_H */