Hi Stephen, On Fri, Jun 8, 2012 at 3:52 PM, Stephen Warren <swar...@wwwdotorg.org>wrote:
> On 06/08/2012 04:36 PM, Stephen Warren wrote: > > On 06/08/2012 04:00 PM, Stephen Warren wrote: > >> On 06/08/2012 03:44 PM, Albert ARIBAUD wrote: > >>> Hi Tom, > >>> > >>> Le 31/05/2012 18:47, Tom Warren a écrit : > >>>> Albert, > >>>> > >>>> Please pull u-boot-tegra/master into ARM master. Thanks! > >>>> > >>>> The following changes since commit > >>>> 2ca4a209a5b961ad1be8782c68dabe326d77dfaf: > >>>> SRICHARAN R (1): > >>>> OMAP4/5: Change omap4_sdp, omap4_panda, omap5_evm maintainer > >>>> > >>>> are available in the git repository at: > >>>> > >>>> git://git.denx.de/u-boot-tegra master > >>> > >>> Trying trimslice with the stock Linaro toolchain from Xubuntu: > >>> > >>> uboot@lilith:~/src/u-boot-arm$ LC_ALL=C ./MAKEALL trimslice > >>> Configuring for trimslice board... > >>> text data bss dec hex filename > >>> 234794 4716 276460 515970 7df82 ./u-boot > >>> /bin/sh: line 1: exit: too many arguments > >>> make[1]: *** [dt.dtb] Error 1 > >>> make: *** [u-boot.dtb] Error 2 > >>> > >>> Are there special needs for building trimslice? > >> > >> There should be nothing special about TrimSlice vs. any other Tegra > board. > >> > >> This is somehow related to the dtc (device tree compiler) version that's > >> picked up by the build process. I can reproduce it by placing Ubuntu > >> Lucid's dtc in my PATH, but not with another version of dtc I had in my > >> path (require to build our downstream U-Boot device trees). > >> > >> I'll investigate, unless anyone else wants to. > > > > In order to see the real problem with dtc, you will need: > > > > http://lists.denx.de/pipermail/u-boot/2012-June/125967.html > > > > The problem is as follows: > > > >> /home/swarren/shared/git_wa/u-boot/arch/arm/dts/tegra20.dtsi:3 syntax > error > >> FATAL ERROR: Couldn't read input tree > >> make[1]: *** [dt.dtb] Error 1 > > > > This is because tegra-trimslice.dts contains: > > > >> /include/ ARCH_CPU_DTS > > > > which is run through cpp to substitute the correct absolute path: > > > >> /include/ "/home/swarren/shared/git_wa/u-boot/arch/arm/dts/tegra20.dtsi" > > > > However, some versions of dtc appear to have a problem parsing this > > path; perhaps it's the leading /? > > Uggh. The problem is that older versions of dtc would only accept a > single definition of the root node; they don't allow another copy to be > specified, which "overlays" or is "merged with" it. Put another way, dtc > can't compile a simple: > > > /dts-v1/; > > > > / { > > foo = "bar"; > > }; > > > > / { > > foo = "bar"; > > }; > > That means we can't separate the device tree source into separate > skeleton.dtsi, tegra20.dtsi, and tegra2-$board.dts. > > So, we have basically no choice but to require people to upgrade to a > recent dtc. If we do that, we can also get rid of the cpp hacks, since > the latest dtc has a -i option that can be used to set an include path. > Oh dear, it's worse than I thought. Perhaps the first step would be to ask the device-tree people to issue a new release (1.4?), if they have not already. Regards, Simon
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