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

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Message-ID: <CALszF6Dvbu8sKGvtOYKMPKWo+Z6+8927mfmLR=CDBJPPR300wg@mail.gmail.com>
Date:	Tue, 26 May 2015 11:25:46 +0200
From:	Maxime Coquelin <mcoquelin.stm32@...il.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Andreas Färber <afaerber@...e.de>,
	Arnd Bergmann <arnd@...db.de>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Daniel Thompson <daniel.thompson@...aro.org>,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Rob Herring <robh+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Stefan Agner <stefan@...er.ch>,
	Peter Meerwald <pmeerw@...erw.net>,
	Paul Bolle <pebolle@...cali.nl>,
	Peter Hurley <peter@...leysoftware.com>,
	Andy Shevchenko <andy.shevchenko@...il.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Joe Perches <joe@...ches.com>,
	Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>,
	Lee Jones <lee.jones@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>,
	Nikolay Borisov <Nikolay.Borisov@....com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Kees Cook <keescook@...omium.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Nicolae Rosia <nicolae.rosia@...il.com>,
	Kamil Lulko <rev13@...pl>
Subject: Re: [PATCH v8 14/16] ARM: dts: Introduce STM32F429 MCU

Hi Maxime,

2015-05-23 10:28 GMT+02:00 Maxime Ripard <maxime.ripard@...e-electrons.com>:
> On Thu, May 21, 2015 at 10:10:35PM +0200, Maxime Coquelin wrote:
>> 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).

For sure it will have to remain compliant with the legacy bootloader.
It is easier for STM32 since it is a newly platform.

Regards,
Maxime C.
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