S3C2412 SPI controller in DMA/FIFO mode

S3C2412 SPI controller in DMA/FIFO mode

[Jonathan Miles]

Hi!

Has anyone had any success in getting the S3C2412 SPI controller to work 
in FIFO or DMA mode? I've been trying for a while now but not managed to 
create anything stable.

I note that the current kernels have s3c24xx_fiq - is this because no 
one else has managed to get FIFO/DMA to work either?

Thanks in advance,

Jonathan

-- 
Reciva Ltd, Unit 1, The Old Granary, Westwick, CAMBRIDGE CB24 3AR
Registered in England & Wales No. 04719949

Re: S3C2412 SPI controller in DMA/FIFO mode

[Ben Dooks]

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On Wed, May 12, 2010 at 10:45:14AM +0100, Jonathan Miles wrote:
> Hi!
>
> Has anyone had any success in getting the S3C2412 SPI controller to work  
> in FIFO or DMA mode? I've been trying for a while now but not managed to  
> create anything stable.
>
> I note that the current kernels have s3c24xx_fiq - is this because no  
> one else has managed to get FIFO/DMA to work either?

Partly it is there because other SoCs don't have FIFO and also don't
have bi-directional capable DMA. Not tried FIFO with S3C2412, the
FIQ was plenty fast enough.

-- 
Ben

Q:      What's a light-year?
A:      One-third less calories than a regular year.


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