firmware/target/coldfire/ata-target.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 by Linus Nielsen Feltzing
  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 #ifndef ATA_TARGET_H
  22 #define ATA_TARGET_H
  23
  24 /* asm optimised read & write loops */
  25 #define ATA_OPTIMIZED_READING
  26 #define ATA_OPTIMIZED_WRITING
  27
  28 #define ATA_IOBASE      0x20000000
  29 #define ATA_DATA        (*((volatile unsigned short*)(ATA_IOBASE + 0x20)))
  30 #define ATA_CONTROL     (*((volatile unsigned short*)(ATA_IOBASE + 0x1c)))
  31
  32 #define ATA_ERROR       (*((volatile unsigned short*)(ATA_IOBASE + 0x22)))
  33 #define ATA_NSECTOR     (*((volatile unsigned short*)(ATA_IOBASE + 0x24)))
  34 #define ATA_SECTOR      (*((volatile unsigned short*)(ATA_IOBASE + 0x26)))
  35 #define ATA_LCYL        (*((volatile unsigned short*)(ATA_IOBASE + 0x28)))
  36 #define ATA_HCYL        (*((volatile unsigned short*)(ATA_IOBASE + 0x2a)))
  37 #define ATA_SELECT      (*((volatile unsigned short*)(ATA_IOBASE + 0x2c)))
  38 #define ATA_COMMAND     (*((volatile unsigned short*)(ATA_IOBASE + 0x2e)))
  39
  40 #define STATUS_BSY      0x8000
  41 #define STATUS_RDY      0x4000
  42 #define STATUS_DF       0x2000
  43 #define STATUS_DRQ      0x0800
  44 #define STATUS_ERR      0x0100
  45
  46 #define ERROR_ABRT      0x0400
  47 #define ERROR_IDNF      0x1000
  48
  49 #define WRITE_PATTERN1 0xa5
  50 #define WRITE_PATTERN2 0x5a
  51 #define WRITE_PATTERN3 0xaa
  52 #define WRITE_PATTERN4 0x55
  53
  54 #define READ_PATTERN1 0xa500
  55 #define READ_PATTERN2 0x5a00
  56 #define READ_PATTERN3 0xaa00
  57 #define READ_PATTERN4 0x5500
  58
  59 #define READ_PATTERN1_MASK 0xff00
  60 #define READ_PATTERN2_MASK 0xff00
  61 #define READ_PATTERN3_MASK 0xff00
  62 #define READ_PATTERN4_MASK 0xff00
  63
  64 #define SET_REG(reg,val) reg = ((val) << 8)
  65 #define SET_16BITREG(reg,val) reg = (val)
  66
  67 void ata_reset(void);
  68 void ata_enable(bool on);
  69 void ata_device_init(void);
  70 bool ata_is_coldstart(void);
  71
  72 void copy_read_sectors(unsigned char* buf, int wordcount);
  73 void copy_write_sectors(const unsigned char* buf, int wordcount);
  74 #endif