Author: wmb Date: Sun Sep 2 02:00:26 2012 New Revision: 3272 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3272
Log: OLPC ARM - Changed the error threshold for suspend-state power to accomodate the observed power draw of the XO-4 A2 boards. When we have newer boards and better characterization, this threshold may need further tweaking.
Modified: cpu/arm/mmp2/rtc.fth
Modified: cpu/arm/mmp2/rtc.fth ============================================================================== --- cpu/arm/mmp2/rtc.fth Sun Sep 2 01:58:37 2012 (r3271) +++ cpu/arm/mmp2/rtc.fth Sun Sep 2 02:00:26 2012 (r3272) @@ -54,6 +54,12 @@ ; alias test4 wakeup-loop
+d# -250 constant suspend-power-limit +[ifdef] mmp3 + .( mmp2/rtc.fth: Temporarily increasing suspend-power-limit) cr + d# -400 to suspend-power-limit +[then] + : s3-selftest ( -- error? ) \ The general failure mode here is that it won't wake up, so \ it's hard to return a real error code. We just have to rely @@ -62,7 +68,7 @@ ." Sleeping for 3 seconds .. " d# 1000 ms ec-rst-pwr ['] cancel-alarm 3 rtc-wake str ec-max-pwr ( power ) \ Negative power is consumed from battery, positive is supplied to battery - dup d# -250 < if ( power ) + dup suspend-power-limit < if ( power ) ." System used too much power during suspend - " negate .d ." mW" cr ( ) true ( error? ) else ( power )