summaryrefslogtreecommitdiffstats
path: root/include/asm-arm/arch-pxa/ssp.h
blob: 6ec67b018c09d20928da60610111a447f65adb26 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
/*
 *  ssp.h
 *
 *  Copyright (C) 2003 Russell King, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This driver supports the following PXA CPU/SSP ports:-
 *
 *       PXA250     SSP
 *       PXA255     SSP, NSSP
 *       PXA26x     SSP, NSSP, ASSP
 *       PXA27x     SSP1, SSP2, SSP3
 */

#ifndef SSP_H
#define SSP_H

struct ssp_state {
	u32	cr0;
	u32 cr1;
	u32 to;
	u32 psp;
};

struct ssp_dev {
	u32 port;
	u32 mode;
	u32 flags;
	u32 psp_flags;
	u32 speed;
};

int ssp_write_word(struct ssp_dev *dev, u32 data);
int ssp_read_word(struct ssp_dev *dev);
void ssp_flush(struct ssp_dev *dev);
void ssp_enable(struct ssp_dev *dev);
void ssp_disable(struct ssp_dev *dev);
void ssp_save_state(struct ssp_dev *dev, struct ssp_state *ssp);
void ssp_restore_state(struct ssp_dev *dev, struct ssp_state *ssp);
int ssp_init(struct ssp_dev *dev, u32 port);
int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed);
void ssp_exit(struct ssp_dev *dev);

#endif