[U-Boot] Problem with v2018-09-rc2 to boot EFI on Arndale board

[Peter Robinson]

On Thu, Aug 16, 2018 at 10:40 AM, Guillaume GARDET
<guillaume.gardet at free.fr> wrote:
>
> Hi,
>
> While trying to boot Grub2/EFI on Arndale board, I got the following error:
> **********************************************************************
> fdt_fixup_memory_banks: num banks 8 exceeds hardcoded limit 4. Recompile with higher MEMORY_BANKS_MAX?
> ERROR: arch-specific fdt fixup failed
>  - must RESET the board to recover.
>
> ERROR: failed to process device tree
> ERROR: failed to install device tree
> 812544 bytes read in 77 ms (10.1 MiB/s)
> fdt_fixup_memory_banks: num banks 8 exceeds hardcoded limit 4. Recompile with higher MEMORY_BANKS_MAX?
> ERROR: arch-specific fdt fixup failed
>  - must RESET the board to recover.
>
> ERROR: failed to process device tree
> ERROR: failed to install device tree
> EFI LOAD FAILED: continuing...
> **********************************************************************
>
> If I set MEMORY_BANKS_MAX to 8 in common/fdt_support.c , then it boots fine. Is there any reason to stick this to 4, or could I send a patch to rise it to 8?
>
> Would be great to get it fixed for v2018.09.

There's already a couple of threads on this list about this problem,
see the Aug [1] and search, you can likely get it working by setting
the value you need in the arndale config file too while that thread
comes to agreement.

[1] https://lists.denx.de/pipermail/u-boot/2018-August/