Date: Mon, 17 Feb 2014 16:03:32 -0300 From: Luiz Otavio O Souza <lists.br@gmail.com> To: Glen Barber <gjb@freebsd.org> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: "No valid device tree blob found" error Message-ID: <CAB=2f8y5ZxM7k06LESLZEUw-pJxManDRpK=YahzsaidH6Htg0g@mail.gmail.com> In-Reply-To: <20140216213152.GG1667@glenbarber.us> References: <20140216213001.GF1667@glenbarber.us> <20140216213152.GG1667@glenbarber.us>
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[-- Attachment #1 --] On 16 February 2014 18:31, Glen Barber wrote: > On Sun, Feb 16, 2014 at 04:30:01PM -0500, Glen Barber wrote: >> Images for RPI-B and BEAGLEBONE (and I suspect PANDABOARD) are failing >> to boot this week. >> >> The images are built against r261948. Console messages during boot: >> >> ## Starting application at 0x88000054 ... >> Consoles: U-Boot console >> Compatible API signature found @9f242240 >> MMC Device 2 not found >> MMC Device 3 not found >> Number of U-Boot devices: 2 >> >> FreeBSD/armv6 U-Boot loader, Revision 1.2 >> (root@grind.freebsd.org, Sun Feb 16 18:10:43 UTC 2014) >> DRAM: 512MB >> >> Device: disk >> Loading /boot/defaults/loader.conf >> /boot/kernel/kernel data=0x460bc8+0x2c7438 >> syms=[0x4+0x85a60+0x4+0x50c89] >> >> Hit [Enter] to boot immediately, or any other key for command prompt. >> Booting [/boot/kernel/kernel]... >> Using DTB provided by U-Boot. >> No valid device tree blob found!WARNING! Trying to fire up the kernel, >> but no device tree blob found! >> >> Any ideas if this is error on my part, or a problem in head/ ? The >> stable/10/ images boot fine, so I do not suspect any code changes in the >> build process. >> > > Correction: RPI-B fails to boot. BEAGLEBONE boots after pressing 'q' > when this message is displayed. > > Glen > Yeah, i had noted this difference already (and forgot to ask about it...). It works on BEAGLEBONE because the BEAGLEBONE kernel still has the FDT_DTB_STATIC option. I have booted mine without the static dtb blob included in kernel without any issue (using crochet images - other images which doesn't use ubldr may be broken by this change). If you guys think it is appropriate i can ask to commit the attached patch. Luiz [-- Attachment #2 --] Index: sys/arm/conf/BEAGLEBONE =================================================================== --- sys/arm/conf/BEAGLEBONE (revision 262037) +++ sys/arm/conf/BEAGLEBONE (working copy) @@ -132,5 +132,7 @@ # Flattened Device Tree options FDT -options FDT_DTB_STATIC +# Note: DTB is normally loaded by beaglebone U-Boot and then handed +# to kernel via ubldr. +#options FDT_DTB_STATIC makeoptions FDT_DTS_FILE=beaglebone.dtshome | help
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