Date: Sun, 10 Feb 2013 23:22:07 -0700 From: Warner Losh <imp@bsdimp.com> To: Tim Kientzle <tim@kientzle.com> Cc: freebsd-arm@freebsd.org Subject: Re: building RaspPi Images Message-ID: <8454CB00-22D2-40ED-AAE3-51C1AF28463A@bsdimp.com> In-Reply-To: <67660AAE-0489-40F1-9729-FF2F0C631DF8@kientzle.com> References: <5116CB50.9080303@ceetonetechnology.com> <7757848F-45C6-4DEF-A4A2-5F900EB10A06@kientzle.com> <20130210012052.4d7e1a46@ivory.local> <58DCA6BE-8C06-4F69-81A2-A3582FBB5B12@kientzle.com> <E691571B-EA19-4485-BB02-7486685B44C7@bsdimp.com> <EB4A0D67-9813-47DA-B3DB-F1309B2773F5@kientzle.com> <8087503F-BE98-45B9-888B-044D9DA58B80@bsdimp.com> <20130210212025.009ee482@bender> <ADEA1B10-6C17-43C8-B364-8819593D312E@bsdimp.com> <1339E085-2B31-485D-9EED-9D0AFB7664C5@kientzle.com> <7F7AE905-7A08-48EE-8905-8D688266739A@bsdimp.com> <67660AAE-0489-40F1-9729-FF2F0C631DF8@kientzle.com>
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On Feb 10, 2013, at 11:11 PM, Tim Kientzle wrote: >>=20 >>>> The stand alone interface should, in theory, provide us with the = DTB, but the code that is in ubldr doesn't seem to be reliably getitng = this image. >>>=20 >>> I don't think anyone has spent time on this. We've >>> just been focused on "making it work" and the compiled-in >>> DTB does work for any single board. >>=20 >> Ah, that makes sense. I just know the theory, not the practice. I = haven't had time for armv6 stuff=85 >=20 > I started taking a look at this tonight. It appears > we can get the FDT through the U-Boot API. Cool! > In particular, U-Boot exposes an environment > variable "fdtaddr" with the address of the FDT > blob in memory. The attached (entirely untested) > patch might do the trick. That's really cool! It looks good to me, but I don't know how well the = docs match the code :) > Hopefully I'll have time this week to rebuild all > the boot bits and test this. >=20 > Cheers, >=20 > Tim >=20 > <t.diff> >=20
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