LXR linux/arch/powerpc/include/asm/hydra.h

   1/*
   2 *  include/asm-ppc/hydra.h -- Mac I/O `Hydra' definitions
   3 *
   4 *  Copyright (C) 1997 Geert Uytterhoeven
   5 *
   6 *  This file is based on the following documentation:
   7 *
   8 *      Macintosh Technology in the Common Hardware Reference Platform
   9 *      Apple Computer, Inc.
  10 *
  11 *      © Copyright 1995 Apple Computer, Inc. All rights reserved.
  12 *
  13 *  It's available online from http://www.cpu.lu/~mlan/ftp/MacTech.pdf
  14 *  You can obtain paper copies of this book from computer bookstores or by
  15 *  writing Morgan Kaufmann Publishers, Inc., 340 Pine Street, Sixth Floor, San
  16 *  Francisco, CA 94104. Reference ISBN 1-55860-393-X.
  17 *
  18 *  This file is subject to the terms and conditions of the GNU General Public
  19 *  License.  See the file COPYING in the main directory of this archive
  20 *  for more details.
  21 */
  22
  23#ifndef _ASMPPC_HYDRA_H
  24#define _ASMPPC_HYDRA_H
  25
  26#ifdef __KERNEL__
  27
  28struct Hydra {
  29    /* DBDMA Controller Register Space */
  30    char Pad1[0x30];
  31    u_int CachePD;
  32    u_int IDs;
  33    u_int Feature_Control;
  34    char Pad2[0x7fc4];
  35    /* DBDMA Channel Register Space */
  36    char SCSI_DMA[0x100];
  37    char Pad3[0x300];
  38    char SCCA_Tx_DMA[0x100];
  39    char SCCA_Rx_DMA[0x100];
  40    char SCCB_Tx_DMA[0x100];
  41    char SCCB_Rx_DMA[0x100];
  42    char Pad4[0x7800];
  43    /* Device Register Space */
  44    char SCSI[0x1000];
  45    char ADB[0x1000];
  46    char SCC_Legacy[0x1000];
  47    char SCC[0x1000];
  48    char Pad9[0x2000];
  49    char VIA[0x2000];
  50    char Pad10[0x28000];
  51    char OpenPIC[0x40000];
  52};
  53
  54extern volatile struct Hydra __iomem *Hydra;
  55
  56
  57    /*
  58     *  Feature Control Register
  59     */
  60
  61#define HYDRA_FC_SCC_CELL_EN    0x00000001      /* Enable SCC Clock */
  62#define HYDRA_FC_SCSI_CELL_EN   0x00000002      /* Enable SCSI Clock */
  63#define HYDRA_FC_SCCA_ENABLE    0x00000004      /* Enable SCC A Lines */
  64#define HYDRA_FC_SCCB_ENABLE    0x00000008      /* Enable SCC B Lines */
  65#define HYDRA_FC_ARB_BYPASS     0x00000010      /* Bypass Internal Arbiter */
  66#define HYDRA_FC_RESET_SCC      0x00000020      /* Reset SCC */
  67#define HYDRA_FC_MPIC_ENABLE    0x00000040      /* Enable OpenPIC */
  68#define HYDRA_FC_SLOW_SCC_PCLK  0x00000080      /* 1=15.6672, 0=25 MHz */
  69#define HYDRA_FC_MPIC_IS_MASTER 0x00000100      /* OpenPIC Master Mode */
  70
  71
  72    /*
  73     *  OpenPIC Interrupt Sources
  74     */
  75
  76#define HYDRA_INT_SIO           0
  77#define HYDRA_INT_SCSI_DMA      1
  78#define HYDRA_INT_SCCA_TX_DMA   2
  79#define HYDRA_INT_SCCA_RX_DMA   3
  80#define HYDRA_INT_SCCB_TX_DMA   4
  81#define HYDRA_INT_SCCB_RX_DMA   5
  82#define HYDRA_INT_SCSI          6
  83#define HYDRA_INT_SCCA          7
  84#define HYDRA_INT_SCCB          8
  85#define HYDRA_INT_VIA           9
  86#define HYDRA_INT_ADB           10
  87#define HYDRA_INT_ADB_NMI       11
  88#define HYDRA_INT_EXT1          12      /* PCI IRQW */
  89#define HYDRA_INT_EXT2          13      /* PCI IRQX */
  90#define HYDRA_INT_EXT3          14      /* PCI IRQY */
  91#define HYDRA_INT_EXT4          15      /* PCI IRQZ */
  92#define HYDRA_INT_EXT5          16      /* IDE Primary/Secondary */
  93#define HYDRA_INT_EXT6          17      /* IDE Secondary */
  94#define HYDRA_INT_EXT7          18      /* Power Off Request */
  95#define HYDRA_INT_SPARE         19
  96
  97extern int hydra_init(void);
  98
  99#endif /* __KERNEL__ */
 100
 101#endif /* _ASMPPC_HYDRA_H */
 102