arch/arm/include/asm/arch-s5pc1xx/watchdog.h

   1 /*
   2  * Copyright (C) 2011 Samsung Electronics
   3  * Heungjun Kim <riverful.kim@samsung.com>
   4  * Minkyu Kang <mk7.kang@samsung.com>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   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__
  30 struct s5p_watchdog {
  31         unsigned int wtcon;
  32         unsigned int wtdat;
  33         unsigned int wtcnt;
  34         unsigned int wtclrint;
  35 };
  36
  37 /* functions */
  38 void wdt_stop(void);
  39 void wdt_start(unsigned int timeout);
  40 #endif  /* __ASSEMBLY__ */
  41
  42 #endif