Thread (9 messages) flat view 9 messages, 4 authors, 2005-07-04

Re: MPC85xx DMA support for Kernel 2.6?

From: Clemens Koller <hidden>
Date: 2005-06-30 15:56:33

Hi, Kumar...
I'm not aware of anyone work on such a thing.
*Sigh*... no holiday for me this summer .-(
I'd be more than happy  
to accept patches for it.  I know several of us have written some  APIs 
on top of the DMA for 85xx.  Those however are non-standard APIs.
But is there any code available for recycling?
Are there any Freescale-FAE's with some snippets?
(Hello, world!)
I am about to start more or less from scratch and re-invent the wheel.
What APIs exist for general purpose DMA engines?  Last time I looked  at 
this problem nothing really existed.
:-) I was wondering about that, too...
Maybe we can get some basics from this one:
Linux/Documentation/DMA-API.txt

And, well, code from:
asm-ppc/ppc4xx_dma.h
arch/ppc/syslib/ppc4xx_sgdma.c
and from the pci.h subsystem.

Hmm... and there is the factor that it's difficult to get
resources in my project for all that. :-(((

Best greets,

Clemens Koller
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