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