[Macchiato] Latest EFI hangs writing efivars

[Ard Biesheuvel]

On 13 March 2018 at 10:19, Marcin Wojtas <mw at semihalf.com> wrote:
> Hi Ard,
>
> 2018-03-13 9:49 GMT+01:00 Ard Biesheuvel <ard.biesheuvel at linaro.org>:
>> On 12 March 2018 at 16:51, Marcin Wojtas <mw at semihalf.com> wrote:
>>> Hi Riku,
>>>
>>> Thanks for your debug. It was a DT issue - I reproduced it and was
>>> able to finalize installation of grub. Long story short, the SPI clock
>>> remained not enabled (normally the mtd layer does that). It doesn't
>>> happend with ACPI, where all clocks are enabled by default.
>>>
>>> I worked-around the issue and pushed to the github
>>> (https://github.com/MarvellEmbeddedProcessors/edk2-open-platform/commit/b316449f24fdac9fc14c87d23f4680dfd789c7b8)
>>> - please try newest marvell-armada-wip and let know.
>>>
>>
>> Is the SPI controller that UEFI uses also exposed to the OS?
>
> No. I removed the reference from the DT.

I am seeing the same issue with today's buster mini.iso installer: the
install proceeds until the point where grub gets installed, and then
it hangs. After a reboot, there's no grub in the ESP.