#11085 BLOC 1.5-har: XO-1.75 Memory errors

Zarro Boogs per Child bugtracker at laptop.org
Mon Aug 1 20:34:51 EDT 2011


#11085: XO-1.75 Memory errors
-------------------------------------------+--------------------------------
           Reporter:  wad                  |       Owner:  wad            
               Type:  defect               |      Status:  assigned       
           Priority:  blocker              |   Milestone:  1.5-hardware-C 
          Component:  ofw - open firmware  |     Version:  1.75-B1        
         Resolution:                       |    Keywords:  XO-1.75, memory
        Next_action:  reproduce            |    Verified:  0              
Deployment_affected:                       |   Blockedby:                 
           Blocking:                       |  
-------------------------------------------+--------------------------------

Comment(by wad):

 Latest instructions from Marvell are that Fast Page addressing should be
 turned on in SDRAM_CTRL4, and that the proper DLL initialization sequence
 is:

    80000000 , d0000240 ,   \ phy-ctrl14
   d0000040 , d0000230 ,   \ phy-ctrl13
   00000040 , d0000e10 ,   \ phy-dll-ctrl1
   00000040 , d0000e20 ,   \ phy-dll-ctrl2
   00000040 , d0000e30 ,   \ phy-dll-ctrl3

   20000000 , d0000240 ,   \ phy-ctrl14 – Reset DLL
   40000000 , d0000240 ,   \ phy-ctrl14 – Trigger update of delay
 information from master to slave DLL
   00000000 , d0000e40 ,   \ phy-ctrl-wl-select
   00000000 , d0000e50 ,   \ phy-ctrl-wl-ctrl0
   01000001 , d0000120 ,   \ user-initiated-command0 - start init

-- 
Ticket URL: <http://dev.laptop.org/ticket/11085#comment:8>
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