Re: [PATCH] ARM: bcm2835_defconfig: add minimal support for Raspberry Pi4

[Stefan Wahren]

Hi Marek,

On 13.02.20 08:35, Marek Szyprowski wrote:
> Hi Nicolas
>
> On 12.02.2020 19:31, Nicolas Saenz Julienne wrote:
>> Hi Marek,
>> On Wed, 2020-02-12 at 11:20 +0100, Marek Szyprowski wrote:
>>> Add drivers for the minimal set of devices needed to boot Raspberry Pi4
>>> board.
>>>
>>> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
>> Just so you know, the amount of support on the RPi4 you might be able to get
>> updating bcm2835_defconfig's config is very limited. Only 1GB of ram and no
>> PCIe (so no USBs).
> Yes, I know. A lots of core features is missing: SMP, HIGHMEM, LPAE, PCI 
> and so on, but having a possibility to boot RPi4 with this defconfig 
> increases the test coverage.

in case you want to increase test coverage, we better enable all
Raspberry Pi 4 relevant hardware parts (hwrng, thermal, PCI ...). This
is what we did for older Pi boards.

SMP, HIGHMEM, LPAE are different and shouldn't be enabled in
bcm2835_defconfig from my PoV.

Best regards
Stefan