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Minkyu Kang851db352012-01-18 15:55:05 +09001/*
2 * Copyright (C) 2011 Samsung Electronics
3 * Heungjun Kim <riverful.kim@samsung.com>
4 * Minkyu Kang <mk7.kang@samsung.com>
5 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Minkyu Kang851db352012-01-18 15:55:05 +09007 */
8
9#ifndef __ASM_ARM_ARCH_WATCHDOG_H_
10#define __ASM_ARM_ARCH_WATCHDOG_H_
11
12#define WTCON_RESET_OFFSET 0
13#define WTCON_INTEN_OFFSET 2
14#define WTCON_CLKSEL_OFFSET 3
15#define WTCON_EN_OFFSET 5
16#define WTCON_PRE_OFFSET 8
17
18#define WTCON_CLK_16 0x0
19#define WTCON_CLK_32 0x1
20#define WTCON_CLK_64 0x2
21#define WTCON_CLK_128 0x3
22
23#define WTCON_CLK(x) ((x & 0x3) << WTCON_CLKSEL_OFFSET)
24#define WTCON_PRESCALER(x) ((x) << WTCON_PRE_OFFSET)
25#define WTCON_EN (0x1 << WTCON_EN_OFFSET)
26#define WTCON_RESET (0x1 << WTCON_RESET_OFFSET)
27#define WTCON_INT (0x1 << WTCON_INTEN_OFFSET)
28
29#ifndef __ASSEMBLY__
30struct s5p_watchdog {
31 unsigned int wtcon;
32 unsigned int wtdat;
33 unsigned int wtcnt;
34 unsigned int wtclrint;
35};
36
37/* functions */
38void wdt_stop(void);
39void wdt_start(unsigned int timeout);
40#endif /* __ASSEMBLY__ */
41
42#endif