xref: /openbmc/u-boot/include/ide.h (revision 8c30b571)
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 #ifdef CONFIG_IDE_LED
19 
20 /*
21  * LED Port
22  */
23 #define	LED_PORT	((uchar *)(PER8_BASE + 0x3000))
24 #define LED_IDE1	0x01
25 #define LED_IDE2	0x02
26 #define	DEVICE_LED(d)	((d & 2) | ((d & 2) == 0)) /* depends on bit positions! */
27 
28 void ide_led(uchar led, uchar status);
29 #endif /* CONFIG_IDE_LED */
30 
31 /*
32  * Function Prototypes
33  */
34 
35 void ide_init(void);
36 struct blk_desc;
37 ulong ide_read(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
38 	       void *buffer);
39 ulong ide_write(struct blk_desc *block_dev, lbaint_t blknr, lbaint_t blkcnt,
40 		const void *buffer);
41 
42 #ifdef CONFIG_IDE_PREINIT
43 int ide_preinit(void);
44 #endif
45 
46 #ifdef CONFIG_IDE_INIT_POSTRESET
47 int ide_init_postreset(void);
48 #endif
49 
50 #if defined(CONFIG_OF_IDE_FIXUP)
51 int ide_device_present(int dev);
52 #endif
53 
54 #if defined(CONFIG_IDE_AHB)
55 unsigned char ide_read_register(int dev, unsigned int port);
56 void ide_write_register(int dev, unsigned int port, unsigned char val);
57 void ide_read_data(int dev, ulong *sect_buf, int words);
58 void ide_write_data(int dev, const ulong *sect_buf, int words);
59 #endif
60 
61 /*
62  * I/O function overrides
63  */
64 unsigned char ide_inb(int dev, int port);
65 void ide_outb(int dev, int port, unsigned char val);
66 void ide_input_swap_data(int dev, ulong *sect_buf, int words);
67 void ide_input_data(int dev, ulong *sect_buf, int words);
68 void ide_output_data(int dev, const ulong *sect_buf, int words);
69 void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts);
70 void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts);
71 
72 void ide_led(uchar led, uchar status);
73 
74 /**
75  * board_start_ide() - Start up the board IDE interfac
76  *
77  * @return 0 if ok
78  */
79 int board_start_ide(void);
80 
81 #endif /* _IDE_H */
82