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 Post subject: GPIO and SPI
PostPosted: Sat Mar 04, 2006 3:05 pm 
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Genesi

Joined: Mon Jan 30, 2006 2:28 am
Posts: 409
Location: Finland
Hi all.

Can anyone point me in the right direction with regard to programming the GPIO's and SPI's of the MPC5200B as used in the EFIKA.

The real question I'm asking is:
Are there drivers for these under Linux or should I implement these myself?


Best regards,
Johan


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 Post subject: Re: GPIO and SPI
PostPosted: Thu Mar 09, 2006 9:32 am 
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Site Admin

Joined: Fri Sep 24, 2004 1:39 am
Posts: 1589
Location: Austin, TX
Quote:
Hi all.

Can anyone point me in the right direction with regard to programming the GPIO's and SPI's of the MPC5200B as used in the EFIKA.

The real question I'm asking is:
Are there drivers for these under Linux or should I implement these myself?
http://www.freescale.com/files/microcon ... 5200UM.pdf
http://www.freescale.com/files/32bit/do ... 200BUM.pdf

There is plenty of reference material on programming SPI units on the internet (Google <3 U)

Since both are used for very specific tasks (more than a generic bus/device thing like PCI), I am not sure if there is any useful code in the Linux kernel you can reference.


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 Post subject:
PostPosted: Thu Mar 09, 2006 10:06 am 
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Genesi

Joined: Mon Jan 30, 2006 2:28 am
Posts: 409
Location: Finland
Hi.

Yeah, I found these sites on the net, and in the mean time I've cooked up some code I'll test when I have an EFIKA.

The thing is, I thought there would be a generic driver for these, and there is, just not in the open (found a reference on someones' resume).

I'll see if I can implement a generic (low level) driver to make it easier to program these peripherals.


Best regards,
Johan


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