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- /* $Id: bootinfo.h,v 1.5 1998/08/19 21:58:10 ralf Exp $
- *
- * bootinfo.h -- Definition of the Linux/MIPS boot information structure
- *
- * Copyright (C) 1995, 1996 by Ralf Baechle, Andreas Busse,
- * Stoned Elipot and Paul M. Antoine.
- *
- * 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.
- */
- #ifndef __ASM_MIPS_BOOTINFO_H
- #define __ASM_MIPS_BOOTINFO_H
-
- /* XXX */
- #include <linux/config.h>
-
- /*
- * Values for machgroup
- */
- #define MACH_GROUP_UNKNOWN 0 /* whatever... */
- #define MACH_GROUP_JAZZ 1 /* Jazz */
- #define MACH_GROUP_DEC 2 /* Digital Equipment */
- #define MACH_GROUP_ARC 3 /* Wreckstation Tyne, rPC44, possibly other */
- #define MACH_GROUP_SNI_RM 4 /* Siemens Nixdorf RM series */
- #define MACH_GROUP_ACN 5
- #define MACH_GROUP_SGI 6 /* Silicon Graphics workstations and servers */
- #define MACH_GROUP_RESERVED 7 /* No Such Architecture */
-
- #define GROUP_NAMES { "unknown", "Jazz", "Digital", "ARC", \
- "SNI", "ACN", "SGI", "NSA" }
-
- /*
- * Valid machtype values for group unknown (low order halfword of mips_machtype)
- */
- #define MACH_UNKNOWN 0 /* whatever... */
-
- #define GROUP_UNKNOWN_NAMES { "unknown" }
-
- /*
- * Valid machtype values for group JAZZ
- */
- #define MACH_ACER_PICA_61 0 /* Acer PICA-61 (PICA1) */
- #define MACH_MIPS_MAGNUM_4000 1 /* Mips Magnum 4000 "RC4030" */
- #define MACH_OLIVETTI_M700 2 /* Olivetti M700-10 (-15 ??) */
-
- #define GROUP_JAZZ_NAMES { "Acer PICA 61", "Mips Magnum 4000", "Olivetti M700" }
-
- /*
- * Valid machtype for group DEC
- */
- /* FIXME: this is a very fuzzy name, and we got a big "name space now" */
- /* So otiginal DEC codes can be used -Stoned */
- #define MACH_DECSTATION 0 /* DECStation 5000/2x for now */
-
- #define GROUP_DEC_NAMES { "3min" }
-
- /*
- * Valid machtype for group ARC
- */
- #define MACH_DESKSTATION_RPC44 0 /* Deskstation rPC44 */
- #define MACH_DESKSTATION_TYNE 1 /* Deskstation Tyne */
-
- #define GROUP_ARC_NAMES { "Deskstation rPC44", "Deskstation Tyne" }
-
- /*
- * Valid machtype for group SNI_RM
- */
- #define MACH_SNI_RM200_PCI 0 /* RM200/RM300/RM400 PCI series */
-
- #define GROUP_SNI_RM_NAMES { "RM200 PCI" }
-
- /*
- * Valid machtype for group ACN
- */
- #define MACH_ACN_MIPS_BOARD 0 /* ACN MIPS single board */
-
- #define GROUP_ACN_NAMES { "ACN" }
-
- /*
- * Valid machtype for group SGI
- */
- #define MACH_SGI_INDY 0 /* R4?K and R5K Indy workstaions */
-
- #define GROUP_SGI_NAMES { "Indy" }
-
- /*
- * Valid cputype values
- */
- #define CPU_UNKNOWN 0
- #define CPU_R2000 1
- #define CPU_R3000 2
- #define CPU_R3000A 3
- #define CPU_R3041 4
- #define CPU_R3051 5
- #define CPU_R3052 6
- #define CPU_R3081 7
- #define CPU_R3081E 8
- #define CPU_R4000PC 9
- #define CPU_R4000SC 10
- #define CPU_R4000MC 11
- #define CPU_R4200 12
- #define CPU_R4400PC 13
- #define CPU_R4400SC 14
- #define CPU_R4400MC 15
- #define CPU_R4600 16
- #define CPU_R6000 17
- #define CPU_R6000A 18
- #define CPU_R8000 19
- #define CPU_R10000 20
- #define CPU_R4300 21
- #define CPU_R4650 22
- #define CPU_R4700 23
- #define CPU_R5000 24
- #define CPU_R5000A 25
- #define CPU_R4640 26
- #define CPU_NEVADA 27 /* RM5230, RM5260 */
- #define CPU_LAST 27
-
- #define CPU_NAMES { "unknown", "R2000", "R3000", "R3000A", "R3041", "R3051", \
- "R3052", "R3081", "R3081E", "R4000PC", "R4000SC", "R4000MC", \
- "R4200", "R4400PC", "R4400SC", "R4400MC", "R4600", "R6000", \
- "R6000A", "R8000", "R10000", "R4300", "R4650", "R4700", "R5000", \
- "R5000A", "R4640", "Nevada" }
-
- #define CL_SIZE (80)
-
- #ifndef _LANGUAGE_ASSEMBLY
-
- /*
- * Some machine parameters passed by the bootloaders.
- */
-
- struct drive_info_struct {
- char dummy[32];
- };
-
- /* This is the same as in Milo but renamed for the sake of kernel's */
- /* namespace */
- typedef struct mips_arc_DisplayInfo { /* video adapter information */
- unsigned short cursor_x;
- unsigned short cursor_y;
- unsigned short columns;
- unsigned short lines;
- } mips_arc_DisplayInfo;
-
- /*
- * New style bootinfo
- *
- * Add new tags only at the end of the enum; *never* remove any tags
- * or you'll break compatibility!
- */
- enum bi_tag {
- /*
- * not a real tag
- */
- tag_dummy,
-
- /*
- * machine type
- */
- tag_machtype,
-
- /*
- * system CPU & FPU
- */
- tag_cputype,
-
- /*
- * Installed RAM
- */
- tag_memlower,
- tag_memupper,
-
- /*
- * Cache Sizes (0xffffffff = unknown)
- */
- tag_icache_size,
- tag_icache_linesize,
- tag_dcache_size,
- tag_dcache_linesize,
- tag_scache_size,
- tag_scache_linesize,
-
- /*
- * TLB Info
- */
- tag_tlb_entries,
-
- /*
- * DMA buffer size (Deskstation only)
- */
- tag_dma_cache_size,
- tag_dma_cache_base,
-
- /*
- * Ramdisk Info
- */
- tag_ramdisk_size, /* ramdisk size in 1024 byte blocks */
- tag_ramdisk_base, /* address of the ram disk in mem */
-
- /*
- * Boot flags for the kernel
- */
- tag_mount_root_rdonly,
- tag_drive_info,
-
- /*
- * Video ram info (not in tty.h)
- */
- tag_vram_base, /* video ram base address */
-
- tag_command_line, /* kernel command line parameters */
-
- /*
- * machine group
- */
- tag_machgroup,
-
- /*
- * info on the display from the ARC BIOS
- */
- tag_arcdisplayinfo,
-
- /*
- * tag to pass a complete struct screen_info
- */
- tag_screen_info
- };
-
- /* struct defining a tag */
- typedef struct {
- enum bi_tag tag;
- unsigned long size;
- } tag;
-
- /* struct to define a tag and it's data */
- typedef struct {
- tag t;
- void* d;
- } tag_def;
-
- /* macros for parsing tag list */
- #define TAGVALPTR(t) ((void*)(((void*)(t)) - ((t)->size)))
- #define NEXTTAGPTR(t) ((void*)(TAGVALPTR(t) - (sizeof(tag))))
-
- /* size macros for tag size field */
- #define UCHARSIZE (sizeof(unsigned char))
- #define ULONGSIZE (sizeof(unsigned long))
- #define UINTSIZE (sizeof(unsigned int))
- #define DRVINFOSIZE (sizeof(struct drive_info_struct))
- #define CMDLINESIZE (sizeof(char[CL_SIZE])
-
- /*
- * For tag readers aka the kernel
- */
- tag *bi_TagFind(enum bi_tag type);
- void bi_EarlySnarf(void);
-
- /* For tag creators aka bootloaders */
- /* Now implemented in Milo 0.26 */
- int bi_TagAdd(enum bi_tag type, unsigned long size, void *data);
- int bi_TagAddList(tag_def* taglist);
- void bi_TagWalk(void);
-
-
- #ifdef CONFIG_SGI
- /* screen info will dissapear... soon */
- //#define DEFAULT_SCREEN_INFO {0, 0, 0, 0, 0, 158, 0, 0, 0, 62, 0, 16}
- #define DEFAULT_SCREEN_INFO {0, 0, 0, 0, 0, 160, 0, 0, 0, 64, 0, 16}
- #define DEFAULT_DRIVE_INFO { {0,}}
- #else
- /* default values for screen_info variable */
- #define DEFAULT_SCREEN_INFO {0, 0, 0, 52, 3, 80, 4626, 3, 9, 50}
- #endif
-
- /* default values for drive info */
- #define DEFAULT_DRIVE_INFO { {0,}}
-
-
- /*
- * These are the kernel variables initialized from
- * the tag. And they have to be initialized to dummy/default
- * values in setup.c (or whereever suitable) so they are in
- * .data section
- */
- extern unsigned long mips_memory_upper;
- extern unsigned long mips_cputype;
- extern unsigned long mips_machtype;
- extern unsigned long mips_machgroup;
- extern unsigned long mips_tlb_entries;
- extern unsigned long mips_vram_base;
- extern unsigned long mips_dma_cache_size;
- extern unsigned long mips_dma_cache_base;
-
- #endif /* _LANGUAGE_ASSEMBLY */
-
- #endif /* __ASM_MIPS_BOOTINFO_H */
-