include/ide.h

   1 /*
   2  * (C) Copyright 2000
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #ifndef _IDE_H
  25 #define _IDE_H
  26
  27 #define IDE_BUS(dev)    (dev / (CONFIG_SYS_IDE_MAXDEVICE / CONFIG_SYS_IDE_MAXBUS))
  28
  29 #define ATA_CURR_BASE(dev)      (CONFIG_SYS_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)])
  30 extern ulong ide_bus_offset[];
  31
  32 #ifdef CONFIG_IDE_LED
  33
  34 /*
  35  * LED Port
  36  */
  37 #define LED_PORT        ((uchar *)(PER8_BASE + 0x3000))
  38 #define LED_IDE1        0x01
  39 #define LED_IDE2        0x02
  40 #define DEVICE_LED(d)   ((d & 2) | ((d & 2) == 0)) /* depends on bit positions! */
  41
  42 #endif /* CONFIG_IDE_LED */
  43
  44 #ifdef CONFIG_SYS_64BIT_LBA
  45 typedef uint64_t lbaint_t;
  46 #define LBAF "%llx"
  47 #define LBAFU "%llu"
  48 #else
  49 typedef ulong lbaint_t;
  50 #define LBAF "%lx"
  51 #define LBAFU "%lu"
  52 #endif
  53
  54 /*
  55  * Function Prototypes
  56  */
  57
  58 void ide_init(void);
  59 ulong ide_read(int device, lbaint_t blknr, lbaint_t blkcnt, void *buffer);
  60 ulong ide_write(int device, lbaint_t blknr, lbaint_t blkcnt,
  61                 const void *buffer);
  62
  63 #ifdef CONFIG_IDE_PREINIT
  64 int ide_preinit(void);
  65 #endif
  66
  67 #ifdef CONFIG_IDE_INIT_POSTRESET
  68 int ide_init_postreset(void);
  69 #endif
  70
  71 #if defined(CONFIG_OF_IDE_FIXUP)
  72 int ide_device_present(int dev);
  73 #endif
  74
  75 #if defined(CONFIG_IDE_AHB)
  76 unsigned char ide_read_register(int dev, unsigned int port);
  77 void ide_write_register(int dev, unsigned int port, unsigned char val);
  78 void ide_read_data(int dev, ulong *sect_buf, int words);
  79 void ide_write_data(int dev, ulong *sect_buf, int words);
  80 #endif
  81
  82 /*
  83  * I/O function overrides
  84  */
  85 void ide_input_swap_data(int dev, ulong *sect_buf, int words);
  86 void ide_input_data(int dev, ulong *sect_buf, int words);
  87 void ide_output_data(int dev, const ulong *sect_buf, int words);
  88 void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts);
  89 void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts);
  90
  91 /**
  92  * board_start_ide() - Start up the board IDE interfac
  93  *
  94  * @return 0 if ok
  95  */
  96 int board_start_ide(void);
  97
  98 #endif /* _IDE_H */