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/*
* (C) Copyright 2001
* Bill Hunter, Wave 7 Optics, williamhunter@mediaone.net
* and
* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <config.h>
#include <rtc.h>
#include "errors.h"
#include "dtt.h"
/* for LM75 DTT POST test */
#define DTT_READ_TEMP 0x0
#define DTT_CONFIG 0x1
#define DTT_TEMP_HYST 0x2
#define DTT_TEMP_SET 0x3
#if defined(CONFIG_RTC_M48T35A)
void rtctest(void)
{
volatile uchar *tchar = (uchar*)(CONFIG_SYS_NVRAM_BASE_ADDR + CONFIG_SYS_NVRAM_SIZE - 9);
struct rtc_time tmp;
/* set up led code for RTC tests */
log_stat(ERR_RTCG);
/*
* Do RTC battery test. The first write after power up
* fails if battery is low.
*/
*tchar = 0xaa;
if ((*tchar ^ 0xaa) != 0x0) log_warn(ERR_RTCBAT);
*tchar = 0x55; /* Reset test address */
/*
* Now lets check the validity of the values in the RTC.
*/
rtc_get(&tmp);
if ((tmp.tm_sec < 0) | (tmp.tm_sec > 59) |
(tmp.tm_min < 0) | (tmp.tm_min > 59) |
(tmp.tm_hour < 0) | (tmp.tm_hour > 23) |
(tmp.tm_mday < 1 ) | (tmp.tm_mday > 31) |
(tmp.tm_mon < 1 ) | (tmp.tm_mon > 12) |
(tmp.tm_year < 2000) | (tmp.tm_year > 2500) |
(tmp.tm_wday < 1 ) | (tmp.tm_wday > 7)) {
log_warn(ERR_RTCTIM);
rtc_reset();
}
/*
* Now lets do a check to see if the NV RAM is there.
*/
*tchar = 0xaa;
if ((*tchar ^ 0xaa) != 0x0) log_err(ERR_RTCVAL);
*tchar = 0x55; /* Reset test address */
} /* rtctest() */
#endif /* CONFIG_RTC_M48T35A */
#ifdef CONFIG_DTT_LM75
int dtt_test(int sensor)
{
short temp, trip, hyst;
/* get values */
temp = dtt_read(sensor, DTT_READ_TEMP) / 256;
trip = dtt_read(sensor, DTT_TEMP_SET) / 256;
hyst = dtt_read(sensor, DTT_TEMP_HYST) / 256;
/* check values */
if ((hyst != (CONFIG_SYS_DTT_MAX_TEMP - CONFIG_SYS_DTT_HYSTERESIS)) ||
(trip != CONFIG_SYS_DTT_MAX_TEMP) ||
(temp < CONFIG_SYS_DTT_LOW_TEMP) || (temp > CONFIG_SYS_DTT_MAX_TEMP))
return 1;
return 0;
} /* dtt_test() */
#endif /* CONFIG_DTT_LM75 */
/*****************************************/
void post2(void)
{
#if defined(CONFIG_RTC_M48T35A)
rtctest();
#endif /* CONFIG_RTC_M48T35A */
#ifdef CONFIG_DTT_LM75
log_stat(ERR_TempG);
if(dtt_test(2) != 0) log_warn(ERR_Ttest0);
if(dtt_test(4) != 0) log_warn(ERR_Ttest1);
#endif /* CONFIG_DTT_LM75 */
} /* post2() */
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