#4479 HIGH Update.: DCON corruption during suspend/resume

Zarro Boogs per Child bugtracker at laptop.org
Wed Oct 31 22:07:28 EDT 2007


#4479: DCON corruption during suspend/resume
---------------------+------------------------------------------------------
  Reporter:  wad     |       Owner:  dilinger
      Type:  defect  |      Status:  new     
  Priority:  high    |   Milestone:  Update.1
 Component:  kernel  |     Version:          
Resolution:          |    Keywords:  DCON    
  Verified:  0       |  
---------------------+------------------------------------------------------

Comment(by dwmw2):

 It sounds like SDRAM is uninitialised. Can you poke the SDRAM control
 registers manually using the i2cset tool, and make it initialise properly?

 Something along these lines... (Himax or the peanut gallery will confirm):
 {{{
    i2cset -y 0 13 0x3a 0xc040 w
    i2cset -y 0 13 0x41 0 w
    i2cset -y 0 13 0x41 0x101 w
 }}}

-- 
Ticket URL: <https://dev.laptop.org/ticket/4479#comment:8>
One Laptop Per Child <https://dev.laptop.org>
OLPC bug tracking system



More information about the Bugs mailing list