xref: /linux/include/linux/vexpress.h (revision 81cc3f86)
1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License version 2 as
4  * published by the Free Software Foundation.
5  *
6  * This program is distributed in the hope that it will be useful,
7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
9  * GNU General Public License for more details.
10  *
11  * Copyright (C) 2012 ARM Limited
12  */
13 
14 #ifndef _LINUX_VEXPRESS_H
15 #define _LINUX_VEXPRESS_H
16 
17 #include <linux/device.h>
18 #include <linux/regmap.h>
19 
20 #define VEXPRESS_SITE_MB		0
21 #define VEXPRESS_SITE_DB1		1
22 #define VEXPRESS_SITE_DB2		2
23 #define VEXPRESS_SITE_MASTER		0xf
24 
25 /* Config infrastructure */
26 
27 void vexpress_config_set_master(u32 site);
28 u32 vexpress_config_get_master(void);
29 
30 void vexpress_config_lock(void *arg);
31 void vexpress_config_unlock(void *arg);
32 
33 int vexpress_config_get_topo(struct device_node *node, u32 *site,
34 		u32 *position, u32 *dcc);
35 
36 /* Config bridge API */
37 
38 struct vexpress_config_bridge_ops {
39 	struct regmap * (*regmap_init)(struct device *dev, void *context);
40 	void (*regmap_exit)(struct regmap *regmap, void *context);
41 };
42 
43 struct device *vexpress_config_bridge_register(struct device *parent,
44 		struct vexpress_config_bridge_ops *ops, void *context);
45 
46 /* Config regmap API */
47 
48 struct regmap *devm_regmap_init_vexpress_config(struct device *dev);
49 
50 /* Platform control */
51 
52 void vexpress_flags_set(u32 data);
53 
54 #endif
55