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 _______________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Str. 45/1 81379 Muenchen Germany http://www.anagramm.de Phone: +49-89-741518-50 Fax: +49-89-741518-19