diff options
Diffstat (limited to 'arch/mips/include/asm/m48t37.h')
| -rw-r--r-- | arch/mips/include/asm/m48t37.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/mips/include/asm/m48t37.h b/arch/mips/include/asm/m48t37.h new file mode 100644 index 000000000..3687a02e6 --- /dev/null +++ b/arch/mips/include/asm/m48t37.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Registers for the SGS-Thomson M48T37 Timekeeper RAM chip + */ +#ifndef _ASM_M48T37_H +#define _ASM_M48T37_H + +#include <linux/spinlock.h> + +extern spinlock_t rtc_lock; + +struct m48t37_rtc { + volatile u8 pad[0x7ff0]; /* NVRAM */ + volatile u8 flags; + volatile u8 century; + volatile u8 alarm_sec; + volatile u8 alarm_min; + volatile u8 alarm_hour; + volatile u8 alarm_data; + volatile u8 interrupts; + volatile u8 watchdog; + volatile u8 control; + volatile u8 sec; + volatile u8 min; + volatile u8 hour; + volatile u8 day; + volatile u8 date; + volatile u8 month; + volatile u8 year; +}; + +#define M48T37_RTC_SET 0x80 +#define M48T37_RTC_STOPPED 0x80 +#define M48T37_RTC_READ 0x40 + +#endif /* _ASM_M48T37_H */ |