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* How to map addresses beyond 4GB
@ 2007-11-22 10:42 Dell Query
  2007-11-23 23:23 ` Dan Malek
  0 siblings, 1 reply; 3+ messages in thread
From: Dell Query @ 2007-11-22 10:42 UTC (permalink / raw)
  To: linuxppc-embedded

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Hi,

I would like to ask if anyone knows how to map addresses beyond 4GB. I am trying to access the GPIO on PPC440EPx by mapping it but the address is 0x1EF600B00, which is way beyond 4GB.

May I know how to map this one?

Thanks,
dell

       
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^ permalink raw reply	[flat|nested] 3+ messages in thread

• * Re: How to map addresses beyond 4GB
    2007-11-22 10:42 How to map addresses beyond 4GB Dell Query
  @ 2007-11-23 23:23 ` Dan Malek
    2007-11-27  9:57   ` Dell Query
    0 siblings, 1 reply; 3+ messages in thread
  From: Dan Malek @ 2007-11-23 23:23 UTC (permalink / raw)
    To: Dell Query; +Cc: linuxppc-embedded
  
  
  On Nov 22, 2007, at 2:42 AM, Dell Query wrote:
  
  > May I know how to map this one?
  
  Just call ioremap() as usual.  It will understand the > 4G
  physical address and return a useful virtual address
  to you.
  
  	-- Dan
  
  ^ permalink raw reply	[flat|nested] 3+ messages in thread

• • * Re: How to map addresses beyond 4GB
      2007-11-23 23:23 ` Dan Malek
    @ 2007-11-27  9:57   ` Dell Query
      0 siblings, 0 replies; 3+ messages in thread
    From: Dell Query @ 2007-11-27  9:57 UTC (permalink / raw)
      To: Dan Malek; +Cc: linuxppc-embedded
    
    [-- Attachment #1: Type: text/plain, Size: 354 bytes --]
    
    Thanks
    
    Dan Malek <dan@embeddedalley•com> wrote: 
    On Nov 22, 2007, at 2:42 AM, Dell Query wrote:
    
    > May I know how to map this one?
    
    Just call ioremap() as usual.  It will understand the > 4G
    physical address and return a useful virtual address
    to you.
    
     -- Dan
    
    
    
           
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    ^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2007-11-27 10:02 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2007-11-22 10:42 How to map addresses beyond 4GB Dell Query
2007-11-23 23:23 ` Dan Malek
2007-11-27  9:57   ` Dell Query

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