1/*
2 * ARM PrimeXsys System Controller SP810 header file
3 *
4 * Copyright (C) 2009 ST Microelectronics
5 * Viresh Kumar <viresh.linux@gmail.com>
6 *
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
10 */
11
12#ifndef __AMBA_SP810_H
13#define __AMBA_SP810_H
14
15#include <linux/io.h>
16
17/* sysctl registers offset */
18#define SCCTRL			0x000
19#define SCSYSSTAT		0x004
20#define SCIMCTRL		0x008
21#define SCIMSTAT		0x00C
22#define SCXTALCTRL		0x010
23#define SCPLLCTRL		0x014
24#define SCPLLFCTRL		0x018
25#define SCPERCTRL0		0x01C
26#define SCPERCTRL1		0x020
27#define SCPEREN			0x024
28#define SCPERDIS		0x028
29#define SCPERCLKEN		0x02C
30#define SCPERSTAT		0x030
31#define SCSYSID0		0xEE0
32#define SCSYSID1		0xEE4
33#define SCSYSID2		0xEE8
34#define SCSYSID3		0xEEC
35#define SCITCR			0xF00
36#define SCITIR0			0xF04
37#define SCITIR1			0xF08
38#define SCITOR			0xF0C
39#define SCCNTCTRL		0xF10
40#define SCCNTDATA		0xF14
41#define SCCNTSTEP		0xF18
42#define SCPERIPHID0		0xFE0
43#define SCPERIPHID1		0xFE4
44#define SCPERIPHID2		0xFE8
45#define SCPERIPHID3		0xFEC
46#define SCPCELLID0		0xFF0
47#define SCPCELLID1		0xFF4
48#define SCPCELLID2		0xFF8
49#define SCPCELLID3		0xFFC
50
51#define SCCTRL_TIMERENnSEL_SHIFT(n)	(15 + ((n) * 2))
52
53static inline void sysctl_soft_reset(void __iomem *base)
54{
55	/* switch to slow mode */
56	writel(0x2, base + SCCTRL);
57
58	/* writing any value to SCSYSSTAT reg will reset system */
59	writel(0, base + SCSYSSTAT);
60}
61
62#endif /* __AMBA_SP810_H */
63