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Support for S3C2440 SD Controller

Hi there,
I have now managed to make a driver for the S3C2440 SD Controller,
together with some very preliminary interface to the S3C2440 DMA
The SD driver supports only SD memory cards, and has only been tested
with 512MB, 1GB, and 2GB non-SDHC cards, and a 4GB SDHC card.
DMA transfers are supported, while wide bus transfers are NOT supported.

The patch[1] applies cleanly against the netbsd-5 branch in CVS.

Comments and critique is very welcome.


[1]: http://xpg.dk/files/File/netbsd/mini2440-20091125.patch

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