1 /* MN10300 Reset controller and watchdog timer definitions
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
12 #ifndef _ASM_RESET_REGS_H
13 #define _ASM_RESET_REGS_H
15 #include <asm/cpu-regs.h>
16 #include <asm/exceptions.h>
21 * watchdog timer registers
23 #define WDBC __SYSREGC(0xc0001000, u8) /* watchdog binary counter reg */
25 #define WDCTR __SYSREG(0xc0001002, u8) /* watchdog timer control reg */
26 #define WDCTR_WDCK 0x07 /* clock source selection */
27 #define WDCTR_WDCK_256th 0x00 /* - OSCI/256 */
28 #define WDCTR_WDCK_1024th 0x01 /* - OSCI/1024 */
29 #define WDCTR_WDCK_2048th 0x02 /* - OSCI/2048 */
30 #define WDCTR_WDCK_16384th 0x03 /* - OSCI/16384 */
31 #define WDCTR_WDCK_65536th 0x04 /* - OSCI/65536 */
32 #define WDCTR_WDRST 0x40 /* binary counter reset */
33 #define WDCTR_WDCNE 0x80 /* watchdog timer enable */
35 #define RSTCTR __SYSREG(0xc0001004, u8) /* reset control reg */
36 #define RSTCTR_CHIPRST 0x01 /* chip reset */
37 #define RSTCTR_DBFRST 0x02 /* double fault reset flag */
38 #define RSTCTR_WDTRST 0x04 /* watchdog timer reset flag */
39 #define RSTCTR_WDREN 0x08 /* watchdog timer reset enable */
43 static inline void mn10300_proc_hard_reset(void)
45 RSTCTR &= ~RSTCTR_CHIPRST;
46 RSTCTR |= RSTCTR_CHIPRST;
49 extern unsigned int watchdog_alert_counter[];
51 extern void watchdog_go(void);
52 extern asmlinkage void watchdog_handler(void);
54 void watchdog_interrupt(struct pt_regs *, enum exception_code);
58 #endif /* __KERNEL__ */
60 #endif /* _ASM_RESET_REGS_H */