[QUESTION] MPC834x DMA Support

Wolfgang Denk wd at denx.de
Fri Apr 28 02:27:49 EST 2006


In message <C5BA91F04186584EB68FD42BB4993E6BC1B5C6 at FRQWOLEX01.frequentis.frq> you wrote:
> 
> does anyone know if the mpc834x's dma unit supports dma operation
> only between pci and csb or also between csb and csb, f.e. devices
> connected via the lbc (f.e. ram and a dsp)?

This should work. We used this  to  initialize  ECC  memory.  But  be
careful  about your performance expectations - ask Freescale what you
can get out of memory to memory DMA. [Sorry, I'm  still  waiting  for
replies from FSL myself.]

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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ween  courage and foolhardiness. Always it is the brave ones who die,
the soldiers.
	-- Kor, the Klingon Commander, "Errand of Mercy",
	   stardate 3201.7



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