[U-Boot] Booting non devicetree enabled kernels using u-boot build with CONFIG_OF_LIBFDT ?

[Tom Rini]

On Thu, Nov 13, 2014 at 07:08:59PM +0100, Hans de Goede wrote:
> Hi all,
> 
> So as you know I've been working on getting mainline u-boot to boot the
> older android derived linux-sunxi kernels, as some people need features
> not yet in mainline, and I would like there to be only one u-boot for both.
> 
> I had this working a while ago, but recently it broke, this is caused by
> config_distro_defaults.h setting CONFIG_OF_LIBFDT, if I undef that
> after including config_distro_defaults.h things work again.
> 
> I do not know if CONFIG_OF_LIBFDT is a recent addition to config_distro_defaults.h,
> or if something else broke things. But if I do not undef it, boot fails with:
> 
> sun7i# bootm start 0x48000000
> ## Booting kernel from Legacy Image at 48000000 ...
>    Image Name:   Linux-3.4.75.sun7i+
>    Image Type:   ARM Linux Kernel Image (uncompressed)
>    Data Size:    3966672 Bytes = 3.8 MiB
>    Load Address: 40008000
>    Entry Point:  40008000
>    Verifying Checksum ... OK
> Could not find a valid device tree

My hunch is that we've got more fall-out from Simon's re-org of the
bootm code ages ago.  It should be valid to try and boot a kernel
without a device tree and other parts of the code base (for example
arch/arm/lib/bootm.c) still do a FDT-or-ATAGS dance for example.

-- 
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20141113/654af675/attachment.pgp>