arch/sh/include/cpu-sh4/cpu/watchdog.h

   1 /*
   2  * include/asm-sh/cpu-sh4/watchdog.h
   3  *
   4  * Copyright (C) 2002, 2003 Paul Mundt
   5  * Copyright (C) 2009 Siemens AG
   6  * Copyright (C) 2009 Sitdikov Valentin
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file "COPYING" in the main directory of this archive
  10  * for more details.
  11  */
  12 #ifndef __ASM_CPU_SH4_WATCHDOG_H
  13 #define __ASM_CPU_SH4_WATCHDOG_H
  14
  15 #if defined(CONFIG_CPU_SUBTYPE_SH7785) || defined(CONFIG_CPU_SUBTYPE_SH7780)
  16 /* Prefix definition */
  17 #define WTBST_HIGH      0x55
  18 /* Register definitions */
  19 #define WTCNT_R         0xffcc0010 /*WDTCNT*/
  20 #define WTCSR           0xffcc0004 /*WDTCSR*/
  21 #define WTCNT           0xffcc0000 /*WDTST*/
  22 #define WTST            WTCNT
  23 #define WTBST           0xffcc0008 /*WDTBST*/
  24 /* Register definitions */
  25 #elif   defined(CONFIG_CPU_SUBTYPE_SH7722) || \
  26         defined(CONFIG_CPU_SUBTYPE_SH7723) || \
  27         defined(CONFIG_CPU_SUBTYPE_SH7724)
  28 #define WTCNT           0xa4520000
  29 #define WTCSR           0xa4520004
  30 #else
  31 /* Register definitions */
  32 #define WTCNT           0xffc00008
  33 #define WTCSR           0xffc0000c
  34 #endif
  35
  36 /* Bit definitions */
  37 #define WTCSR_TME       0x80
  38 #define WTCSR_WT        0x40
  39 #define WTCSR_RSTS      0x20
  40 #define WTCSR_WOVF      0x10
  41 #define WTCSR_IOVF      0x08
  42
  43 #endif /* __ASM_CPU_SH4_WATCHDOG_H */
  44