linux-kernel - Re: [PATCH v6 4/6] ARM: vf610: enable NAND Flash Controller

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Message-ID: <BLU436-SMTP255283C042EDEF59D9BA0CFB8910@phx.gbl>
Date:	Wed, 8 Jul 2015 10:32:54 -0400
From:	Bill Pringlemeir <bpringle@...patico.ca>
To:	Shawn Guo <shawnguo@...nel.org>
CC:	Stefan Agner <stefan@...er.ch>, dwmw2@...radead.org,
	computersforpeace@...il.com, sebastian@...akpoint.cc,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	shawn.guo@...aro.org, kernel@...gutronix.de,
	boris.brezillon@...e-electrons.com, marb@...at.de,
	aaron@...tycactus.com, bpringlemeir@...il.com,
	linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 4/6] ARM: vf610: enable NAND Flash Controller


On  8 Jul 2015, shawnguo@...nel.org wrote:
> On Fri, Jun 19, 2015 at 12:58:37AM +0200, Stefan Agner wrote:
>> Enable the NAND Flash Controller driver which is part of the Vybrid
>> SoC by default.
>>
>> Signed-off-by: Stefan Agner <stefan@...er.ch>
>> ---
>> arch/arm/mach-imx/Kconfig | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
>> index 3a3d3e9..9358135 100644
>> --- a/arch/arm/mach-imx/Kconfig
>> +++ b/arch/arm/mach-imx/Kconfig
>>>> -589,6 +589,7 @@ config SOC_VF610
>> 	select PINCTRL_VF610
>> 	select PL310_ERRATA_769419 if CACHE_L2X0
>> 	select SMP_ON_UP if SMP
>> +	select HAVE_NAND_VF610_NFC

> I'm not sure about the benefit of having this option, except we have
> to have this additional architecture patch.

For other SOC, like the PowerPC or ColdFire CPUs with this controller,
it was a way to mark the controller as populated.  Otherwise, the
Kconfig entry to select the controller will pop up for everybody.

Is there a better way to do this?


>>
>> 	help
>> 	  This enables support for Freescale Vybrid VF610 processor.
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