[U-Boot] Marvell Kirkwood newbie question GPIO functions

[Prafulla Wadaskar]

> -----Original Message-----
> From: u-boot-bounces at lists.denx.de 
> [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Dieter Kiermaier
> Sent: Thursday, June 18, 2009 1:35 PM
> To: u-boot at lists.denx.de
> Subject: [U-Boot] Marvell Kirkwood newbie question GPIO functions
> 
> Hello everybody out there,
> 
> first off all - thanks to everyone from the u-boot community 
> for this helpful piece of code :)
> 
> Could somebody give me a short overview of the plans 
> regarding the u-boot port of the Kirkwood arch (e.g. 
> Sheevaplug board)?
It's my pleasure to reply you :-)
Basic Kirkwood Soc Support patches are available on the u-boot-arm.git/next (will be mainlined soon)
Sheevaplug board support patches are also submitted those are under review, you can find them here...
http://lists.denx.de/pipermail/u-boot/2009-June/054313.html
http://lists.denx.de/pipermail/u-boot/2009-June/054314.html
http://lists.denx.de/pipermail/u-boot/2009-June/054316.html

Some other board patches are in pipeline

> 
> Currently I'm using the u-boot from git.marvell.com which has 
> first board support for sheevaplug. I'm working on a custom 
> hardware design but as a starting point the sheevaplug seems 
> to work well.
Objective for U-boot at git.marvell.com is to maintain a usable copy of u-boot with all accepted/unaccepted patches at one place to support Kirkwood developers, but once all these patches are mainlined, this repository will be removed.
 
> 
> Sadly there is no generic gpio support - at least I couldn't find it.
> Are there any plans to support a driver for this feature?
BTW: what you want to do at u-boot level with GPIOs?
Current Kirkwood drivers and board support does not need any specific GPIO driver, you can access registers directly to read/write GPIOs. But I think if this is a need in future, I will add gpio driver support. You can provide me your requirements too.
 
> 
> I'm willing to contribute some code if someone guides me a bit?
You are most welcomed....
Pls feel free to raise your queries...

Regards..
Prafulla . .

> 
> Thanks in advance,
> Dieter
> 
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