[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
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Reporter: jg | Owner: mfoster
Type: defect | Status: new
Priority: blocker | Milestone: BTest-1
Component: linuxbios | Resolution:
Keywords: |
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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.
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Ticket URL: <http://dev.laptop.org/ticket/231#comment:1>
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