release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/plat-samsung/include/plat/regs-watchdog.h

   1 /* arch/arm/mach-s3c2410/include/mach/regs-watchdog.h
   2  *
   3  * Copyright (c) 2003 Simtec Electronics <linux@simtec.co.uk>
   4  *                    http://www.simtec.co.uk/products/SWLINUX/
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * S3C2410 Watchdog timer control
  11 */
  12
  13
  14 #ifndef __ASM_ARCH_REGS_WATCHDOG_H
  15 #define __ASM_ARCH_REGS_WATCHDOG_H
  16
  17 #define S3C_WDOGREG(x) ((x) + S3C_VA_WATCHDOG)
  18
  19 #define S3C2410_WTCON      S3C_WDOGREG(0x00)
  20 #define S3C2410_WTDAT      S3C_WDOGREG(0x04)
  21 #define S3C2410_WTCNT      S3C_WDOGREG(0x08)
  22
  23 /* the watchdog can either generate a reset pulse, or an
  24  * interrupt.
  25  */
  26
  27 #define S3C2410_WTCON_RSTEN   (0x01)
  28 #define S3C2410_WTCON_INTEN   (1<<2)
  29 #define S3C2410_WTCON_ENABLE  (1<<5)
  30
  31 #define S3C2410_WTCON_DIV16   (0<<3)
  32 #define S3C2410_WTCON_DIV32   (1<<3)
  33 #define S3C2410_WTCON_DIV64   (2<<3)
  34 #define S3C2410_WTCON_DIV128  (3<<3)
  35
  36 #define S3C2410_WTCON_PRESCALE(x) ((x) << 8)
  37 #define S3C2410_WTCON_PRESCALE_MASK (0xff00)
  38
  39 #endif /* __ASM_ARCH_REGS_WATCHDOG_H */