blob: 47ded707f2be2006259517e8dc118dc8c38de65f [file] [log] [blame]
\ See license at end of file
purpose: System reset using the watchdog timer
main-pmu-pa h# 200 + constant wdtpcr
: enable-wdt-clock
main-pmu-pa h# 1020 + dup io@ h# 10 or swap io! \ enable wdt 2 clock PMUM_PRR_PJ
wdtpcr io@ dup h# 7 or wdtpcr io! h# 3 or wdtpcr io!
;
h# 080000 value wdt-pa
: (wdt!) ( value offset -- ) wdt-pa + io! ;
: wdt! ( value offset -- )
h# baba h# 9c (wdt!) h# eb10 h# a0 (wdt!) ( value offset )
(wdt!)
;
: wdt@ ( offset -- value ) wdt-pa + io@ ;
: wdt-reset ( -- )
enable-wdt-clock
2 h# 68 wdt! \ set match register
3 h# 64 wdt! \ match enable: enable counting, enable reset
1 h# 98 wdt! \ Reset counter
begin again
;
0 [if]
: test-wdt ( -- )
enable-wdt-clock
h# 100 h# 68 wdt! \ set match register
1 h# 64 wdt! \ match enable: enable counting, no reset yet
h# 6c wdt@ . d# 100 ms h# 6c wdt@ .
;
[then]
: watchdog? h# 70 wdt@ 1 and ;
\ LICENSE_BEGIN
\ Copyright (c) 2010 FirmWorks
\
\ Permission is hereby granted, free of charge, to any person obtaining
\ a copy of this software and associated documentation files (the
\ "Software"), to deal in the Software without restriction, including
\ without limitation the rights to use, copy, modify, merge, publish,
\ distribute, sublicense, and/or sell copies of the Software, and to
\ permit persons to whom the Software is furnished to do so, subject to
\ the following conditions:
\
\ The above copyright notice and this permission notice shall be
\ included in all copies or substantial portions of the Software.
\
\ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
\ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
\ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
\ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
\ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
\ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
\ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\
\ LICENSE_END