[U-Boot] sun50i blocking SPL changes

[Jagan Teki]

On Sat, Nov 25, 2017 at 2:06 AM, Jagan Teki <jagan at amarulasolutions.com> wrote:
> On Sat, Nov 25, 2017 at 1:17 AM, Dr. Philipp Tomsich
> <philipp.tomsich at theobroma-systems.com> wrote:
>> Jagan, Maxime & Tom,
>>
>> I have a couple of changes to spl_fit.c queued that we need to get merged to fix some issues for ATF support on Rockchip platforms.
>
> Does all rk64 has enough SPL size's to fit?
>
>> However, due to internal alignment before the ARMv8 vectors, this breaks the sun50i builds (all exceeding their SPL size by up to approx. 1KB), even though I am adding only about a 100 bytes to the size of spl_fit.c.
>
> Yes, as per as my trails[1] it's not possible to increase SPL size.
>
>>
>> The change that triggers this is:
>>         https://patchwork.ozlabs.org/patch/813598/
>>
>> However, the root cause lies in the “.align 11” in exceptions.c, which generates a ‘*fill*’ similar to this one (and we have been lucky enough that this came out as a rather small number up until me increasing the size of spl_fit.o):
>>          *fill*         0x0000000000011214      0x5ec
>>          .text.vectors  0x0000000000011800      0x838 arch/arm/cpu/armv8/built-in.o
>>
>> The quickest way to resolve would be to drop support for exception vectors on sun50i.
>
> Don't we miss the exceptions during SPL?
>
>> Any other suggestions are also welcome.
>
> I would rather think to implement TPL provided if there is no option
> to increase the SPL size instead of missing exception vectors.
>
> [1] https://patchwork.ozlabs.org/patch/835973/

+ Andre