diff options
Diffstat (limited to 'include/asm-mips64/m48t35.h')
| -rw-r--r-- | include/asm-mips64/m48t35.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/asm-mips64/m48t35.h b/include/asm-mips64/m48t35.h new file mode 100644 index 000000000..113760397 --- /dev/null +++ b/include/asm-mips64/m48t35.h @@ -0,0 +1,32 @@ +/* + * Registers for the SGS-Thomson M48T35 Timekeeper RAM chip + */ + +#ifndef _ASM_M48T35_H +#define _ASM_M48T35_H + +struct m48t35_rtc { + volatile u8 pad[0x7ff8]; /* starts at 0x7ff8 */ + 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 M48T35_RTC_SET 0x80 +#define M48T35_RTC_STOPPED 0x80 +#define M48T35_RTC_READ 0x40 + +#ifndef BCD_TO_BIN +#define BCD_TO_BIN(x) ((x)=((x)&15) + ((x)>>4)*10) +#endif + +#ifndef BIN_TO_BCD +#define BIN_TO_BCD(x) ((x)=(((x)/10)<<4) + (x)%10) +#endif + +#endif |