3 * Bill Hunter, Wave 7 Optics, williamhunter@mediaone.net
5 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
7 * See file CREDITS for list of people who contributed to this
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.
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.
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,
32 /* for LM75 DTT POST test */
33 #define DTT_READ_TEMP 0x0
34 #define DTT_CONFIG 0x1
35 #define DTT_TEMP_HYST 0x2
36 #define DTT_TEMP_SET 0x3
38 #if defined(CONFIG_RTC_M48T35A)
41 volatile uchar
*tchar
= (uchar
*)(CONFIG_SYS_NVRAM_BASE_ADDR
+ CONFIG_SYS_NVRAM_SIZE
- 9);
44 /* set up led code for RTC tests */
48 * Do RTC battery test. The first write after power up
49 * fails if battery is low.
52 if ((*tchar
^ 0xaa) != 0x0) log_warn(ERR_RTCBAT
);
53 *tchar
= 0x55; /* Reset test address */
56 * Now lets check the validity of the values in the RTC.
59 if ((tmp
.tm_sec
< 0) | (tmp
.tm_sec
> 59) |
60 (tmp
.tm_min
< 0) | (tmp
.tm_min
> 59) |
61 (tmp
.tm_hour
< 0) | (tmp
.tm_hour
> 23) |
62 (tmp
.tm_mday
< 1 ) | (tmp
.tm_mday
> 31) |
63 (tmp
.tm_mon
< 1 ) | (tmp
.tm_mon
> 12) |
64 (tmp
.tm_year
< 2000) | (tmp
.tm_year
> 2500) |
65 (tmp
.tm_wday
< 1 ) | (tmp
.tm_wday
> 7)) {
71 * Now lets do a check to see if the NV RAM is there.
74 if ((*tchar
^ 0xaa) != 0x0) log_err(ERR_RTCVAL
);
75 *tchar
= 0x55; /* Reset test address */
78 #endif /* CONFIG_RTC_M48T35A */
81 #ifdef CONFIG_DTT_LM75
82 int dtt_test(int sensor
)
84 short temp
, trip
, hyst
;
87 temp
= dtt_read(sensor
, DTT_READ_TEMP
) / 256;
88 trip
= dtt_read(sensor
, DTT_TEMP_SET
) / 256;
89 hyst
= dtt_read(sensor
, DTT_TEMP_HYST
) / 256;
92 if ((hyst
!= (CONFIG_SYS_DTT_MAX_TEMP
- CONFIG_SYS_DTT_HYSTERESIS
)) ||
93 (trip
!= CONFIG_SYS_DTT_MAX_TEMP
) ||
94 (temp
< CONFIG_SYS_DTT_LOW_TEMP
) || (temp
> CONFIG_SYS_DTT_MAX_TEMP
))
99 #endif /* CONFIG_DTT_LM75 */
101 /*****************************************/
105 #if defined(CONFIG_RTC_M48T35A)
107 #endif /* CONFIG_RTC_M48T35A */
109 #ifdef CONFIG_DTT_LM75
111 if(dtt_test(2) != 0) log_warn(ERR_Ttest0
);
112 if(dtt_test(4) != 0) log_warn(ERR_Ttest1
);
113 #endif /* CONFIG_DTT_LM75 */