xref: /openbmc/u-boot/include/ide.h (revision b432b1eb)
1 /*
2  * (C) Copyright 2000
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #ifndef	_IDE_H
9 #define _IDE_H
10 
11 #include <blk.h>
12 
13 #define IDE_BUS(dev)	(dev / (CONFIG_SYS_IDE_MAXDEVICE / CONFIG_SYS_IDE_MAXBUS))
14 
15 #define	ATA_CURR_BASE(dev)	(CONFIG_SYS_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)])
16 extern ulong ide_bus_offset[];
17 
18 /*
19  * Function Prototypes
20  */
21 
22 void ide_init(void);
23 struct blk_desc;
24 struct udevice;
25 #ifdef CONFIG_BLK
26 ulong ide_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
27 	       void *buffer);
28 ulong ide_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
29 		const void *buffer);
30 #else
31 ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
32 	       void *buffer);
33 ulong ide_write(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
34 		const void *buffer);
35 #endif
36 
37 #ifdef CONFIG_IDE_PREINIT
38 int ide_preinit(void);
39 #endif
40 
41 #if defined(CONFIG_OF_IDE_FIXUP)
42 int ide_device_present(int dev);
43 #endif
44 
45 #if defined(CONFIG_IDE_AHB)
46 unsigned char ide_read_register(int dev, unsigned int port);
47 void ide_write_register(int dev, unsigned int port, unsigned char val);
48 void ide_read_data(int dev, ulong *sect_buf, int words);
49 void ide_write_data(int dev, const ulong *sect_buf, int words);
50 #endif
51 
52 /*
53  * I/O function overrides
54  */
55 unsigned char ide_inb(int dev, int port);
56 void ide_outb(int dev, int port, unsigned char val);
57 void ide_input_swap_data(int dev, ulong *sect_buf, int words);
58 void ide_input_data(int dev, ulong *sect_buf, int words);
59 void ide_output_data(int dev, const ulong *sect_buf, int words);
60 void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts);
61 void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts);
62 
63 void ide_led(uchar led, uchar status);
64 
65 /**
66  * board_start_ide() - Start up the board IDE interfac
67  *
68  * @return 0 if ok
69  */
70 int board_start_ide(void);
71 
72 #endif /* _IDE_H */
73