u-boot/arch/arm/mach-exynos/include/mach/watchdog.h

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/*
* Copyright (C) 2011 Samsung Electronics
* Heungjun Kim <riverful.kim@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_ARM_ARCH_WATCHDOG_H_
#define __ASM_ARM_ARCH_WATCHDOG_H_
#define WTCON_RESET_OFFSET 0
#define WTCON_INTEN_OFFSET 2
#define WTCON_CLKSEL_OFFSET 3
#define WTCON_EN_OFFSET 5
#define WTCON_PRE_OFFSET 8
#define WTCON_CLK_16 0x0
#define WTCON_CLK_32 0x1
#define WTCON_CLK_64 0x2
#define WTCON_CLK_128 0x3
#define WTCON_CLK(x) ((x & 0x3) << WTCON_CLKSEL_OFFSET)
#define WTCON_PRESCALER(x) ((x) << WTCON_PRE_OFFSET)
#define WTCON_EN (0x1 << WTCON_EN_OFFSET)
#define WTCON_RESET (0x1 << WTCON_RESET_OFFSET)
#define WTCON_INT (0x1 << WTCON_INTEN_OFFSET)
#ifndef __ASSEMBLY__
struct s5p_watchdog {
unsigned int wtcon;
unsigned int wtdat;
unsigned int wtcnt;
unsigned int wtclrint;
};
/* functions */
void wdt_stop(void);
void wdt_start(unsigned int timeout);
#endif /* __ASSEMBLY__ */
#endif