[Linaro-acpi] Touching the initrd before paging_init

[graeme.gregory@linaro.org (G Gregory)]

On 15 December 2015 at 15:36, Jon Masters <jcm@redhat.com> wrote:
> On 12/15/2015 06:19 AM, G Gregory wrote:
>
> <below refers to the GRUB-based approach not the initrd override>
>
>> Tried it, results were not great :-(
>>
>> set root='hd0,gpt2'
>> insmod acpi
>> acpi /DSDT.aml
>> linux /Image-leg earlycon=pl011,0xe1010000 console=ttyAMA0 acpi=force root
>> =/dev/sda2
>
> <snip>
>
>> [    0.000000] PC is at setup_arch+0xfc/0x564
>> [    0.000000] LR is at setup_arch+0xf8/0x564
>
> <snip>
>
> So we unmask SError in setup_arch, which happens now later enough that
> it'll come out of the UART where you can see it. However there are still
> occasions on some of these early platforms where an unhandled SError can
> exist as GRUB exits. I have seen that a number of times on Seattle if
> there's a pending error from one of the IO IP blocks on the SoC You
> might need a firmware update, but can you also confirm that this
> happened reproducibly?
>
It is Seattle RevB I am using and it is repeatable. I have pre-release
firmware on there!

Graeme