[Buildroot] Errors when compiling uboot for rpi 3

Arthur COURTEL arthur.courtel at smile.fr
Mon Dec 9 11:39:09 UTC 2019


Hello,
There is a defconfig for uboot rpi3 32b.
Use this to get it:
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="rpi_3_32b"
It builds a "uboot.bin" but I didn't tested it.

Best regards,
Arthur

On Thu, Dec 5, 2019 at 9:36 PM Thomas Petazzoni
<thomas.petazzoni at bootlin.com> wrote:
>
> On Thu, 05 Dec 2019 12:20:09 +0000
> Ben Edwards <ben at artfuldodge.io> wrote:
>
> > Hi,
> >
> > I am very new to buildroot, so I am probably making some fundamental
> > mistake. I have configured buildroot with the raspberrypi3 defconfig and
> > then enabled uboot. The diff is
> >
> > --- configs/raspberrypi3_defconfig    2019-12-04 19:27:02.700303546 +0000
> > +++ configs/raspberrypi3_defconfig    2019-12-05 11:15:07.073552770 +0000
>
> This Buildroot defconfigs builds an ARM 32 bits system for the RaspberryPi.
>
> > @@ -1,37 +1,26 @@
> > +BR2_TARGET_UBOOT=y
> > +BR2_TARGET_UBOOT_BOARD_DEFCONFIG="rpi_3"
>
> This U-Boot configuration apparently builds an ARM 64 bits bootloader
> for the RaspberryPi, and therefore uses some assembly code that cannot
> build with the ARM 32 compiler built as part of the
> raspberrypi3_defconfig.
>
> Best regards,
>
> Thomas
> --
> Thomas Petazzoni, CTO, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
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