[Trac #53] LinuxBIOS sometimes hangs after "Jumping to LinuxBIOS"

[Zarro Boogs per Child]

#53: LinuxBIOS sometimes hangs after "Jumping to LinuxBIOS"
-------------------------------+--------------------------------------------
 Reporter:  wmb at firmworks.com  |        Owner:  mfoster   
     Type:  defect             |       Status:  assigned  
 Priority:  blocker            |    Milestone:  rev1 alpha
Component:  linuxbios          |   Resolution:            
 Keywords:                     |  
-------------------------------+--------------------------------------------
Comment (by mfoster):

 Replying to [comment:30 mfoster]:
 > Very early on, C.H. Yang had mentioned that the OLPC RAM was designed as
 CL2.5 (IIRC, in response to Ron and Ollie's questions).  I will check the
 Infineon datasheet more closely, and will verify whether the timings are
 in fact valid when run at CL2.5 timings.

 As it turns out, Quanta has moved to an intended design center of CL2, and
 all of the RAMs are supposed to support that design point.  Unfortunately,
 Quanta has confirmed that Infineon provided the wrong DRAMs for the build.
 They had ordered, and we were supposed to receive, the HYB25D256160CE-6
 DRAMs.  Instead, Infineon supplied HYB25D256163CE-4 chips, and incoming QA
 missed the switch.

 Thanks to everyone for the excellent investigation that finally nailed
 this down!

 Best Regards,
 MarkF

-- 
Ticket URL: <http://dev.laptop.org/ticket/53#comment:33>
One Laptop Per Child <http://laptop.org/>