[U-Boot] [PATCH 2/2] ARMv8: enable DM in vexpress64 board

[Simon Glass]

Hi Linus,

On 13 April 2015 at 14:58, Linus Walleij <linus.walleij at linaro.org> wrote:
> On Mon, Apr 13, 2015 at 5:15 PM, Tom Rini <trini at konsulko.com> wrote:
>> On Mon, Apr 13, 2015 at 04:50:55PM +0200, Linus Walleij wrote:
>>> On Sat, Jan 31, 2015 at 4:55 AM,  <fenghua at phytium.com.cn> wrote:
>>>
>>> > From: David Feng <fenghua at phytium.com.cn>
>>> >
>>> > Signed-off-by: David Feng <fenghua at phytium.com.cn>
>>>
>>> This commit breaks U-Boot on the Juno board, I don't know how to
>>> best fix it? Is DM something we want available on all boards or just
>>> the FVP model?
>>
>> All boards, moving forward more things are going to need it.  If you
>> poke around git log you'll see some other patches fixing "enabled DM and
>> now board X doesn't work" commits.
>
> Yeah well right now my problem is figuring out what DM is,
> but I guess I will get it as part of fixing this...

It's a driver model for U-Boot. You could start with
doc/driver-model/README.txt and try the 'demo' command in sandbox. The
demo drivers are pretty easy to follow.

Regards,
Simon