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Date:      Mon, 2 Mar 2015 16:26:27 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        Luiz Otavio O Souza <lists.br@gmail.com>
Cc:        "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: Raspberry Pi SPI device example?
Message-ID:  <6E05A947-FA3A-47D5-8F6C-AE6AB3821556@bsdimp.com>
In-Reply-To: <CAB=2f8zgy8WdFVK9wdN8VXUSw5vpUCOhqPxv2cSHAxiiAw23KA@mail.gmail.com>
References:  <20150216093418.3d1be83b@zeta.dino.sk> <CAB=2f8xUGKWUPu1nk4PoD1ea4PO1BEy=fOZF8X2Y_hNEvTTPtg@mail.gmail.com> <20150219075342.7d2e7eec@zeta.dino.sk> <20150302124103.689135d3@zeta.dino.sk> <CAB=2f8zgy8WdFVK9wdN8VXUSw5vpUCOhqPxv2cSHAxiiAw23KA@mail.gmail.com>

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> On Mar 2, 2015, at 4:14 PM, Luiz Otavio O Souza <lists.br@gmail.com> =
wrote:
>=20
> Edit the DTS source file (bcm2835.dtsi and/or rpi.dts in
> sys/boot/fdt/dts/arm/) and then the DTB will be built as part of the
> next kernel build (you can also build it manually in
> sys/modules/dtb/rpi).

If somebody wanted to be a big help, they=E2=80=99d implement a way to =
splice
in a FDT/DTS at runtime (with support in the boot loader to add =
fragments
like the diff that=E2=80=99s here). There=E2=80=99s some rumblings about =
this in upstream DTC
land, but so far nothing concrete and finalized.

Warner


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