[Trac #231] BTest board fails to boot

Zarro Boogs per Child bugtracker at laptop.org
Tue Oct 31 20:26:06 EST 2006


#231: BTest board fails to boot
-----------------------+----------------------------------------------------
 Reporter:  jg         |        Owner:  mfoster
     Type:  defect     |       Status:  new    
 Priority:  blocker    |    Milestone:  BTest-1
Component:  linuxbios  |   Resolution:         
 Keywords:             |  
-----------------------+----------------------------------------------------
Comment (by ray.tseng at quantatw.com):

 PQ2A22(0x21)EC code had programmed the EC GPIOs to prevent the leakage at
 off state.
 The power on sequence is as following
 1)EC sense power_button#
 2)EC turn on VR_on
 3)EC send pwr_but#
 4)SB turn on main_on& sus_on
 5)EC sense main_on&sus_on
 6)EC turn on the power LED

 The power LED on/off is an indicator.

-- 
Ticket URL: <http://dev.laptop.org/ticket/231#comment:1>
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