compact flash and true IDE mode

compact flash and true IDE mode

[Dan Brennan]

We are building a 405GPr based system with compactFlash as the storage
device. Since there is no embedded PCMCIA support on the 405GPr we
decided to deploy the CF in *true IDE mode*. However, I have not found
any support for true IDE mode in the sources. Is anyone using CF in this
mode? Any recommendations?

Thanks,
Dan

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Re: compact flash and true IDE mode

[Dan Malek]

Dan Brennan wrote:

> ....Is anyone using CF in this
> mode? Any recommendations?

Yes, I see this quite frequently on products I help integrate.
You just need the right IDE board support functions to initialize
a few things and the standard IDE drivers "just work."  Take a look
at the work Matthew Locke did for the MPC8xx IDE.  If you find
yourself writing more than about 50 lines of total code in these few
setup functions, you're likely trying too hard :-)


	-- Dan


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Re: compact flash and true IDE mode

[Matthias Fuchs]

Hi Dan,

take a look into the CPCI405 target support in the recent devel tree.
We use a mem'mapped CF card as storage device on many of our boards.

The file linux/drivers/ide/cpci405.c should be a good starting point for your work.

Matthias


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