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Diffstat (limited to 'firmware/target/arm/imx31/gigabeat-s/ata-target.h')
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diff --git a/firmware/target/arm/imx31/gigabeat-s/ata-target.h b/firmware/target/arm/imx31/gigabeat-s/ata-target.h
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1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2006 by Linus Nielsen Feltzing
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19#ifndef ATA_TARGET_H
20#define ATA_TARGET_H
21
22/* Plain C read & write loops */
23#define PREFER_C_READING
24#define PREFER_C_WRITING
25#if !defined(BOOTLOADER)
26#define ATA_OPTIMIZED_READING
27void copy_read_sectors(unsigned char* buf, int wordcount);
28#endif
29
30#define ATA_IOBASE 0x43F8C000
31#define ATA_DATA (*((volatile unsigned short*)(ATA_IOBASE + 0xA0)))
32#define ATA_ERROR (*((volatile unsigned char*)(ATA_IOBASE + 0xA4)))
33#define ATA_NSECTOR (*((volatile unsigned char*)(ATA_IOBASE + 0xA8)))
34#define ATA_SECTOR (*((volatile unsigned char*)(ATA_IOBASE + 0xAC)))
35#define ATA_LCYL (*((volatile unsigned char*)(ATA_IOBASE + 0xB0)))
36#define ATA_HCYL (*((volatile unsigned char*)(ATA_IOBASE + 0xB4)))
37#define ATA_SELECT (*((volatile unsigned char*)(ATA_IOBASE + 0xB8)))
38#define ATA_COMMAND (*((volatile unsigned char*)(ATA_IOBASE + 0xBC)))
39#define ATA_CONTROL (*((volatile unsigned char*)(ATA_IOBASE + 0xD8)))
40
41#define STATUS_BSY 0x80
42#define STATUS_RDY 0x40
43#define STATUS_DF 0x20
44#define STATUS_DRQ 0x08
45#define STATUS_ERR 0x01
46#define ERROR_ABRT 0x04
47
48#define WRITE_PATTERN1 0xa5
49#define WRITE_PATTERN2 0x5a
50#define WRITE_PATTERN3 0xaa
51#define WRITE_PATTERN4 0x55
52
53#define READ_PATTERN1 0xa5
54#define READ_PATTERN2 0x5a
55#define READ_PATTERN3 0xaa
56#define READ_PATTERN4 0x55
57
58#define READ_PATTERN1_MASK 0xff
59#define READ_PATTERN2_MASK 0xff
60#define READ_PATTERN3_MASK 0xff
61#define READ_PATTERN4_MASK 0xff
62
63#define SET_REG(reg,val) reg = (val)
64#define SET_16BITREG(reg,val) reg = (val)
65
66void ata_reset(void);
67void ata_device_init(void);
68bool ata_is_coldstart(void);
69
70#endif