board/w7o/post2.c

   1 /*
   2  * (C) Copyright 2001
   3  * Bill Hunter, Wave 7 Optics, williamhunter@mediaone.net
   4  *   and
   5  * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <config.h>
  28 #include <rtc.h>
  29 #include "errors.h"
  30 #include "dtt.h"
  31
  32 #if defined(CONFIG_RTC_M48T35A)
  33 void rtctest(void)
  34 {
  35     volatile uchar *tchar = (uchar*)(CFG_NVRAM_BASE_ADDR + CFG_NVRAM_SIZE - 9);
  36     struct rtc_time tmp;
  37
  38     /* set up led code for RTC tests */
  39     log_stat(ERR_RTCG);
  40
  41     /*
  42      * Do RTC battery test. The first write after power up
  43      * fails if battery is low.
  44      */
  45     *tchar = 0xaa;
  46     if ((*tchar ^ 0xaa) != 0x0) log_warn(ERR_RTCBAT);
  47     *tchar = 0x55;                              /* Reset test address */
  48
  49     /*
  50      * Now lets check the validity of the values in the RTC.
  51      */
  52     rtc_get(&tmp);
  53     if ((tmp.tm_sec < 0)        | (tmp.tm_sec  > 59)   |
  54         (tmp.tm_min < 0)        | (tmp.tm_min  > 59)   |
  55         (tmp.tm_hour < 0)       | (tmp.tm_hour > 23)   |
  56         (tmp.tm_mday < 1 )      | (tmp.tm_mday > 31)   |
  57         (tmp.tm_mon < 1 )       | (tmp.tm_mon  > 12)   |
  58         (tmp.tm_year < 2000)    | (tmp.tm_year > 2500) |
  59         (tmp.tm_wday < 1 )      | (tmp.tm_wday > 7)) {
  60         log_warn(ERR_RTCTIM);
  61         rtc_reset();
  62     }
  63
  64     /*
  65      * Now lets do a check to see if the NV RAM is there.
  66      */
  67     *tchar = 0xaa;
  68     if ((*tchar ^ 0xaa) != 0x0) log_err(ERR_RTCVAL);
  69     *tchar = 0x55;                              /* Reset test address */
  70
  71 } /* rtctest() */
  72 #endif  /* CONFIG_RTC_M48T35A */
  73
  74
  75 #ifdef CONFIG_DTT_LM75
  76 int dtt_test(int sensor)
  77 {
  78     short temp, trip, hyst;
  79
  80     /* get values */
  81     temp = dtt_read(sensor, DTT_READ_TEMP) / 256;
  82     trip = dtt_read(sensor, DTT_TEMP_SET) / 256;
  83     hyst = dtt_read(sensor, DTT_TEMP_HYST) / 256;
  84
  85     /* check values */
  86     if ((hyst != (CFG_DTT_MAX_TEMP - CFG_DTT_HYSTERESIS)) ||
  87         (trip != CFG_DTT_MAX_TEMP) ||
  88         (temp < CFG_DTT_LOW_TEMP) || (temp > CFG_DTT_MAX_TEMP))
  89         return 1;
  90
  91     return 0;
  92 } /* dtt_test() */
  93 #endif /* CONFIG_DTT_LM75 */
  94
  95 /*****************************************/
  96
  97 void post2(void)
  98 {
  99 #if defined(CONFIG_RTC_M48T35A)
 100     rtctest();
 101 #endif  /* CONFIG_RTC_M48T35A */
 102
 103 #ifdef CONFIG_DTT_LM75
 104     log_stat(ERR_TempG);
 105     if(dtt_test(2) != 0) log_warn(ERR_Ttest0);
 106     if(dtt_test(4) != 0) log_warn(ERR_Ttest1);
 107 #endif /* CONFIG_DTT_LM75 */
 108 } /* post2() */