[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
You speak of courage. Obviously you do not know the difference bet-
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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