Thursday, 22 August 2013

Re: [U-Boot] dtc: invalid option -- 'i'

On Thu, Aug 22, 2013 at 05:55:46PM +0000, Sharma Bhupesh-B45370 wrote:
>
> > -----Original Message-----
> > From: Tom Rini [mailto:[email protected]] On Behalf Of Tom Rini
> > Sent: Thursday, August 22, 2013 6:22 PM
> > To: Sharma Bhupesh-B45370
> > Cc: 'u-boot'; '[email protected]'; 'ubuntu-
> > [email protected]'
> > Subject: Re: [U-Boot] dtc: invalid option -- 'i'
> >
> > On Thu, Aug 22, 2013 at 07:11:39AM +0000, Sharma Bhupesh-B45370 wrote:
> >
> > > Hi List,
> > >
> > > I am using a 64-bit ubuntu machine running a 12.04 LTS.
> > > I see that the DTC (Device Tree Compiler) version is 1.3.0
> > >
> > > $ dtc -v
> > > Version: DTC 1.3.0
> > >
> > > When I try to compile the latest u-boot 'master' branch (updated
> > > yesterday), I get the following error with dtc:
> > >
> > > dtc: invalid option -- 'i'
> > >
> > > followed by a Usage suggestion.
> > >
> > > I checked that a newer DTC version 1.4.0 is available from Linaro, but
> > > I can't find an updated version for ubuntu and apt-get returns me a
> > message:
> > >
> > > device-tree-compiler is already the newest version
> > >
> > > Any pointers to what I could be doing wrong here?
> >
> > What target are you building for as it should have run the 'checkdtc'
> > rule and told you that you need to install DTC 1.4.0. And yes for Ubuntu
> > you'll need to build your own.
> >
>
> Hi Tom,
>
> I am trying to build the new support code of ARMv8 (using patches from
> David Fengua), using:
>
> $ make vexpress_aemv8a

Ah, OK, I'll make sure that it invokes the checkdtc rule as well.

> I will try building a DTC 1.4.0 for u-buntu by myself, but if we are
> saying that latest u-boot requires DTC 1.4.0 to work well, aren't we
> breaking u-boot compilation on older systems like ubuntu/fedora which
> have older DTC versions?

We are, quite intentionally. I should have spelled it out in the -rc1
release notes, but certainly will in the v2013.10 release itself. We've
wanted to do these changes for a while (as the rules for invoking dtc
got quite complex for handling all the versions) but were able to get a
new release out of upstream before changing things around. FWIW,
Fedora/related has packages available.

--
Tom