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Date:      Thu, 28 May 2015 19:23:03 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Tim Kientzle <tim@kientzle.com>
Cc:        FreeBSD current <freebsd-current@freebsd.org>, freebsd-arm <freebsd-arm@freebsd.org>, Garrett Cooper <yaneurabeya@gmail.com>
Subject:   Re: am335x-bone.dts not exist
Message-ID:  <C42FDCFF-676F-40CC-8181-77B63B3DF9AF@bsdimp.com>
In-Reply-To: <27DD7AA7-4B66-4A8C-A529-1D67B081326E@kientzle.com>
References:  <CA%2BK5SrNykSa4n0MykuEQ52nYdh5uXfqsv7=pdAkrW2_1kbDpzQ@mail.gmail.com> <8FF14032-CAAA-41AD-A3A7-DBBAA69D2153@bluezbox.com> <D1360633-5229-4FDF-8098-D585BE7481D2@gmail.com> <B97E9F41-7CCD-4C47-A887-A446EED7456E@bluezbox.com> <4F170567-59B8-477B-8524-D15AF58288C2@kientzle.com> <142808D5-D628-4FCF-BDF4-BBC96D91E118@bsdimp.com> <27DD7AA7-4B66-4A8C-A529-1D67B081326E@kientzle.com>

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[-- Attachment #1 --]

> On May 25, 2015, at 4:19 PM, Tim Kientzle <tim@kientzle.com> wrote:
> 
>> 
>> On May 25, 2015, at 8:25 AM, Warner Losh <imp@bsdimp.com> wrote:
>> 
>>> 
>>> On May 24, 2015, at 7:44 PM, Tim Kientzle <tim@kientzle.com> wrote:
>>> 
>>>> 
>>>> On May 24, 2015, at 12:55 AM, Oleksandr Tymoshenko <gonzo@bluezbox.com> wrote:
>>>> 
>>>> 
>>>>> On May 24, 2015, at 12:12 AM, Garrett Cooper <yaneurabeya@gmail.com> wrote:
>>>>> 
>>>>> On May 24, 2015, at 0:07, Oleksandr Tymoshenko <gonzo@bluezbox.com> wrote:
>>>>> 
>>>>>>> On May 23, 2015, at 7:21 PM, Andrey Fesenko <f0andrey@gmail.com> wrote:
>>>>>>> 
>>>>>>> # uname -a
>>>>>>> FreeBSD des.local 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r283306: Sat
>>>>>>> May 23 11:56:46 MSK 2015
>>>>>>> root@des.local:/usr/obj/usr/src/sys/GENERIC  amd64
>>>>>>> 
>>>>>>> I'm build BEAGLEBONE with crochet.
>>>>>>> 
>>>>>>> build error
>>>>>>> 
>>>>>>> Mounting UFS partition 1 at /usr/obj/_.mount.freebsd
>>>>>>> Installing U-Boot from : /usr/local/share/u-boot/u-boot-beaglebone
>>>>>>> Error: beaglebone.dts:29.1-2 syntax error
>>>>>>> FATAL ERROR: Unable to parse input tree
>>>>>>> 
>>>>>>> 
>>>>>>> file /usr/src/sys/boot/fdt/dts/arm/beaglebone.dts contain #include
>>>>>>> "am335x-bone.dts" but this file not existence. Need use am335x-evm.dts
>>>>>>> or else?
>>>>>> 
>>>>>> 
>>>>>> am335x-bone.dts in in sys/gnu/dts/arm/, it's a file provided by vendor (TI)
>>>>>> 
>>>>>> I guess crochet does not have this path as include path when compiling
>>>>>> dts files.
>>>>> 
>>>>> Pardon me for being a bit daft potentially, but shouldn’t #include work for all dts files (look for #include in this doc: http://events.linuxfoundation.org/sites/events/files/slides/petazzoni-device-tree-dummies.pdf )?
>>>>> Thanks!
>>>>> 
>>>> 
>>>> 
>>>> #include in dts file is handled by cpp(1). /include/ is handled
>>>> by dtc I believe
>>>> 
>>>> You can take a look at how FreeBSD compiles dts files in
>>>> sys/tools/fdt/make_dtb.sh
>>>> 
>>>> crochet does not have cpp stage of compilation and before my TI
>>>> code/devicetree refactoring none of the dts files referenced in
>>>> crochet used #include. That's why problem never appeared.
>>>> 
>>>> Fix is just a matter of fixing freebsd_install_fdt in lib/freebsd.sh.
>>>> If nobody beats me to it I'll try to fix it and submit pull request to Tim.
>>> 
>>> I’m testing a fix for this now.
>>> 
>>> Thanks for providing such detailed information.
>> 
>> Is there any reason the standard dts to dtb script isn’t being used instead of enshrining another copy of that outside the tree which may break if/when we need to enhance the current script?
> 
> Until recently, this didn’t seem necessary; it was a lot simpler to just invoke dtc.

I changed things to require cpp when I started merging in the upstream dts files
that required it. This was almost a year ago now, about the time we switched
back to the GPL dtc because the BSDL one choked on a lot of the newer files.

> But times change:  https://github.com/freebsd/crochet/commit/22d7555

Cool! Thanks!

Warner


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