firmware/target/arm/tms320dm320/mrobe-500/ata-target.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2007 by Karl Kurbjun
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef ATA_TARGET_H
  23 #define ATA_TARGET_H
  24
  25 #if 0
  26 /* Plain C read & write loops */
  27 #define PREFER_C_READING
  28 #define PREFER_C_WRITING
  29 #else
  30 /* ASM optimized reading and writing */
  31 #define ATA_OPTIMIZED_READING
  32 #define ATA_OPTIMIZED_WRITING
  33
  34 #endif
  35
  36 #define ATA_IOBASE      0x50000000
  37 #define REGISTER_OFFSET (ATA_IOBASE+0x00400000) /* A21 = High */
  38 #define CONTROL_OFFSET  (ATA_IOBASE+0x00800000) /* A22 = High */
  39 #define IDE_SHIFT 17
  40 #define ATA_DATA        (*((volatile unsigned short*)(REGISTER_OFFSET + (0x00 << IDE_SHIFT))))
  41 #define ATA_ERROR       (*((volatile unsigned char*)(REGISTER_OFFSET + (0x01 << IDE_SHIFT))))
  42 #define ATA_NSECTOR     (*((volatile unsigned char*)(REGISTER_OFFSET + (0x02 << IDE_SHIFT))))
  43 #define ATA_SECTOR      (*((volatile unsigned char*)(REGISTER_OFFSET + (0x03 << IDE_SHIFT))))
  44 #define ATA_LCYL        (*((volatile unsigned char*)(REGISTER_OFFSET + (0x04 << IDE_SHIFT))))
  45 #define ATA_HCYL        (*((volatile unsigned char*)(REGISTER_OFFSET + (0x05 << IDE_SHIFT))))
  46 #define ATA_SELECT      (*((volatile unsigned char*)(REGISTER_OFFSET + (0x06 << IDE_SHIFT))))
  47 #define ATA_COMMAND     (*((volatile unsigned char*)(REGISTER_OFFSET + (0x07 << IDE_SHIFT))))
  48 #define ATA_CONTROL     (*((volatile unsigned char*)(CONTROL_OFFSET  + (0x06 << IDE_SHIFT))))
  49
  50
  51 #endif