orion/kirkwood and device tree

Nicolas Pitre nico at fluxnic.net
Fri Nov 4 10:01:43 EDT 2011


On Thu, 3 Nov 2011, Michael Walle wrote:

> Am Donnerstag 03 November 2011, 19:47:45 schrieb Jason:
> > Michael,
> > 
> > On Wed, Nov 02, 2011 at 11:03:04PM +0100, Michael Walle wrote:
> > > Am Mittwoch 02 November 2011, 17:50:57 schrieb Jason:
> > > > Michael,
> > > > 
> > > > On Mon, Oct 31, 2011 at 11:50:28PM +0100, Michael Walle wrote:
> > > > > i've already ported some marvell devices to DT. spi-orion, orion-wdt,
> > > > > rtc-mv and mv_cesa. Atm i'm struggling with how to pass
> > > > > kirkwood_mbus_dram_info to the device drivers (the old method is to
> > > > > pass it through platform_data)
> > > > 
> > > > Do you have a public git tree I could pull from, by chance?  I don't
> > > > care about the state, I'd like to learn by example and start pitching
> > > > in.
> > > 
> > > yeah i pushed it to github:
> > > https://github.com/mwalle/linux/tree/kirkwood-devtree
> > 
> > This is great!  I was having trouble figuring out how to do the
> > interrupt controller, and you have that.  I'll look more closely this
> > evening.
> > 
> > My only comment so far is that I think a lot of what you have in
> > lschlv2.dts can be in kirkwood.dtsi.  That way other boards don't have
> > to copy it (serial, spi, ehci, wdt, rtc, crypto).
> yeah i had it there and it should be definitely put back to kirkwood.dtsi. the 
> reason i've put it into lschv2.dts atm is that there is the clock property for 
> every device, which may be different for different platforms.

The clock property should be a separate entity from the actual devices.  
In fact, that would be a good idea for Kirkwood and friends to move to 
the struck clk API.


Nicolas



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