[PATCH 11/11] ARM: versatile: move CLCD configuration to device tree

[Tomi Valkeinen]

On 25/02/16 15:43, Linus Walleij wrote:
> On Wed, Feb 24, 2016 at 1:13 PM, Pantelis Antoniou
> <pantelis.antoniou at konsulko.com> wrote:
> 
>> IMHO DT+overlays handle all your cases just fine.
>>
>> As far as I see these are the cases which we need to handle:
>>
>> 1) The expansion board in question has some means of identification, whether it’s an
>> EEPROM or a GPIO keying combination etc. In that case it is the kernel’s job to match this
>> id value with a dtbo firmware file and apply it. The blob is located via means of request_firmware().
> 
> Since the dawn of time the x86 people used that console to display
> the early boot crawl and collect crash data. What you're suggesting
> is that we can't get the console up until after the filesystems and mounts
> are up so the kernel can read firmware files.

You can build firmware images into the kernel image. No, I don't like
that either.

The 2.2) option in Pantelis' mail can be used for 1) too, although then
the bootloader needs to know which dtbos to add.

 Tomi

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