drivers/rtc/mpc8xx.c

   1 /*
   2  * (C) Copyright 2001
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 /*
   9  * Date & Time support for internal RTC of MPC8xx
  10  */
  11
  12 /*#define       DEBUG*/
  13
  14 #include <common.h>
  15 #include <command.h>
  16 #include <rtc.h>
  17
  18 #if defined(CONFIG_CMD_DATE)
  19
  20 /* ------------------------------------------------------------------------- */
  21
  22 int rtc_get (struct rtc_time *tmp)
  23 {
  24         volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
  25         ulong tim;
  26
  27         tim = immr->im_sit.sit_rtc;
  28
  29         to_tm (tim, tmp);
  30
  31         debug ( "Get DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
  32                 tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
  33                 tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
  34
  35         return 0;
  36 }
  37
  38 int rtc_set (struct rtc_time *tmp)
  39 {
  40         volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
  41         ulong tim;
  42
  43         debug ( "Set DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",
  44                 tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
  45                 tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
  46
  47         tim = mktime (tmp->tm_year, tmp->tm_mon, tmp->tm_mday,
  48                       tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
  49
  50         immr->im_sitk.sitk_rtck = KAPWR_KEY;
  51         immr->im_sit.sit_rtc = tim;
  52
  53         return 0;
  54 }
  55
  56 void rtc_reset (void)
  57 {
  58         return; /* nothing to do */
  59 }
  60
  61 #endif