/* MN10300 Reset controller and watchdog timer definitions * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #ifndef _ASM_RESET_REGS_H #define _ASM_RESET_REGS_H #include <asm/cpu-regs.h> #include <asm/exceptions.h> #ifdef __KERNEL__ #ifdef CONFIG_MN10300_WD_TIMER #define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */ #endif /* * watchdog timer registers */ #define WDBC __SYSREGC(0xc0001000, u8) /* watchdog binary counter reg */ #define WDCTR __SYSREG(0xc0001002, u8) /* watchdog timer control reg */ #define WDCTR_WDCK 0x07 /* clock source selection */ #define WDCTR_WDCK_256th 0x00 /* - OSCI/256 */ #define WDCTR_WDCK_1024th 0x01 /* - OSCI/1024 */ #define WDCTR_WDCK_2048th 0x02 /* - OSCI/2048 */ #define WDCTR_WDCK_16384th 0x03 /* - OSCI/16384 */ #define WDCTR_WDCK_65536th 0x04 /* - OSCI/65536 */ #define WDCTR_WDRST 0x40 /* binary counter reset */ #define WDCTR_WDCNE 0x80 /* watchdog timer enable */ #define RSTCTR __SYSREG(0xc0001004, u8) /* reset control reg */ #define RSTCTR_CHIPRST 0x01 /* chip reset */ #define RSTCTR_DBFRST 0x02 /* double fault reset flag */ #define RSTCTR_WDTRST 0x04 /* watchdog timer reset flag */ #define RSTCTR_WDREN 0x08 /* watchdog timer reset enable */ #ifndef __ASSEMBLY__ static inline void mn10300_proc_hard_reset(void) { RSTCTR &= ~RSTCTR_CHIPRST; RSTCTR |= RSTCTR_CHIPRST; } extern unsigned int watchdog_alert_counter; extern void watchdog_go(void); extern asmlinkage void watchdog_handler(void); extern asmlinkage void watchdog_interrupt(struct pt_regs *, enum exception_code); #endif #endif /* __KERNEL__ */ #endif /* _ASM_RESET_REGS_H */