pexpert/pexpert/ppc/boot.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * @OSF_COPYRIGHT@
  27  */
  28
  29 #ifndef _PEXPERT_PPC_BOOT_H_
  30 #define _PEXPERT_PPC_BOOT_H_
  31
  32 #define BOOT_LINE_LENGTH        256
  33
  34 /*
  35  * Video information..
  36  */
  37
  38 struct Boot_Video {
  39         unsigned long   v_baseAddr;     /* Base address of video memory */
  40         unsigned long   v_display;      /* Display Code (if Applicable */
  41         unsigned long   v_rowBytes;     /* Number of bytes per pixel row */
  42         unsigned long   v_width;        /* Width */
  43         unsigned long   v_height;       /* Height */
  44         unsigned long   v_depth;        /* Pixel Depth */
  45 };
  46
  47 typedef struct Boot_Video       Boot_Video;
  48
  49 /* DRAM Bank definitions - describes physical memory layout.
  50  */
  51 #define kMaxDRAMBanks   26              /* maximum number of DRAM banks */
  52
  53 struct DRAMBank
  54 {
  55         unsigned long   base;           /* physical base of DRAM bank */
  56         unsigned long   size;           /* size of bank */
  57 };
  58 typedef struct DRAMBank DRAMBank;
  59
  60
  61 /* Boot argument structure - passed into Mach kernel at boot time.
  62  */
  63 #define kBootArgsVersion                1
  64 #define kBootArgsRevision               1
  65
  66 typedef struct boot_args {
  67   unsigned short        Revision;       /* Revision of boot_args structure */
  68   unsigned short        Version;        /* Version of boot_args structure */
  69   char          CommandLine[BOOT_LINE_LENGTH];  /* Passed in command line */
  70   DRAMBank      PhysicalDRAM[kMaxDRAMBanks];    /* base and range pairs for the 26 DRAM banks */
  71   Boot_Video    Video;          /* Video Information */
  72     unsigned long       machineType;    /* Machine Type (gestalt) */
  73     void                *deviceTreeP;   /* Base of flattened device tree */
  74     unsigned long       deviceTreeLength;/* Length of flattened tree */
  75     unsigned long       topOfKernelData;/* Highest address used in kernel data area */
  76 } boot_args;
  77
  78 extern boot_args passed_args;
  79
  80 #endif /* _PEXPERT_PPC_BOOT_H_ */