[PATCH 5/8] powerpc/fsl-booke: Add initial silicon device tree for

Scott Wood scottwood at freescale.com
Fri Mar 8 04:47:50 EST 2013


On 03/07/2013 11:09:50 AM, Kumar Gala wrote:
> 
> On Mar 5, 2013, at 6:15 PM, Scott Wood wrote:
> 
> > On 03/05/2013 05:15:57 PM, Kumar Gala wrote:
> >> Enable a baseline T4240 SoC to boot.  There are several things  
> missing
> >> from the device trees for T4240:
> >> * Thread support on e6500
> >
> > Why did threads get removed from the device tree?  It's supposed to  
> describe hardware, not what Linux currently supports.
> 
> will fix, was concerned if we'd be able to boot if they exited

I don't think it'd be a problem (and if it is, then fix Linux).

> >> +	device_type = "pci";
> >> +	#size-cells = <2>;
> >> +	#address-cells = <3>;
> >> +	bus-range = <0x0 0xff>;
> >> +	clock-frequency = <33333333>;
> >
> > This clock-frequency is not correct (I doubt it's needed at all).
> 
> I can zero the field, but its spec'd by pci binding

If we aren't going to put a correct value in, is zero better than  
omitting it entirely?

There are other properties in the PCI binding that we don't have, such  
as slot-names.  I don't see any language in the PCI binding that says  
one is required but the other isn't.

And shouldn't we be using the PCI express binding (device_type =  
"pciex", or just get rid of it since this isn't real OF)?

-Scott


More information about the Linuxppc-dev mailing list