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      1 /* SPDX-License-Identifier: GPL-2.0+ */
      2 /*
      3  * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
      4  * Andreas Heppel <aheppel (at) sysgo.de>
      5  */
      6 
      7 /*
      8  * Date & Time support for the MK48T59 RTC
      9  */
     10 
     11 
     12 #if defined(CONFIG_RTC_MK48T59) && defined(CONFIG_CMD_DATE)
     13 
     14 #define RTC_PORT_ADDR0		CONFIG_SYS_ISA_IO +  0x70
     15 #define RTC_PORT_ADDR1		RTC_PORT_ADDR0 +  0x1
     16 #define RTC_PORT_DATA		CONFIG_SYS_ISA_IO +  0x76
     17 
     18 /* RTC Offsets */
     19 #define RTC_SECONDS             0x1FF9
     20 #define RTC_MINUTES             0x1FFA
     21 #define RTC_HOURS               0x1FFB
     22 #define RTC_DAY_OF_WEEK         0x1FFC
     23 #define RTC_DAY_OF_MONTH        0x1FFD
     24 #define RTC_MONTH               0x1FFE
     25 #define RTC_YEAR                0x1FFF
     26 
     27 #define RTC_CONTROLA            0x1FF8
     28 #define RTC_CA_WRITE            0x80
     29 #define RTC_CA_READ             0x40
     30 #define RTC_CA_CALIB_SIGN       0x20
     31 #define RTC_CA_CALIB_MASK       0x1f
     32 
     33 #define RTC_CONTROLB            0x1FF9
     34 #define RTC_CB_STOP             0x80
     35 
     36 #define RTC_WATCHDOG			0x1FF7
     37 #define RTC_WDS					0x80
     38 #define RTC_WD_RB_16TH			0x0
     39 #define RTC_WD_RB_4TH			0x1
     40 #define RTC_WD_RB_1				0x2
     41 #define RTC_WD_RB_4				0x3
     42 
     43 void rtc_set_watchdog(short multi, short res);
     44 void *nvram_read(void *dest, const short src, size_t count);
     45 void nvram_write(short dest, const void *src, size_t count);
     46 
     47 #endif
     48