Re: [PATCH v8 14/16] ARM: dts: Introduce STM32F429 MCU

Maxime Ripard
2015-05-23T12:25:08Z

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Hi Maxime,

On Thu, May 21, 2015 at 10:10:35PM +0200, Maxime Coquelin wrote:
> > The only thing we did that stands out a bit is that we actually need
> > the reset driver much earlier than the default probe, since some of
> > our timers are maintained in reset. We have some code to do just that
> > already, we just need have something similar to be on board.
>
> We have the same problem on stm32, as just discussed with Andreas [0].
> I decided to patch the bootloader to deassert timers reset, after
> discussions with Rob Herring and Arnd.

That seems like the best solution, but we don't have control over the
bootloader in most cases. We have an alternative implementation (ie
mainline u-boot) that is required for a few things already, but I'd
really like to still be able to at least boot the kernel on a "legacy"
bootloader (that is the one flashed on the device).

Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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