linux-kernel - RE: [PATCH v2 2/2] mtd: nand: Update dependency of IFC for LS1021A

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Message-ID: <DB6PR0401MB2584606EC932BF1FAED788E1F4610@DB6PR0401MB2584.eurprd04.prod.outlook.com>
Date:   Wed, 4 Jan 2017 01:46:11 +0000
From:   Alison Wang <alison.wang@....com>
To:     Marek Vasut <marek.vasut@...il.com>,
        Alison Wang <b18965@...escale.com>,
        "boris.brezillon@...e-electrons.com" 
        <boris.brezillon@...e-electrons.com>,
        "cyrille.pitchen@...el.com" <cyrille.pitchen@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>
Subject: RE: [PATCH v2 2/2] mtd: nand: Update dependency of IFC for LS1021A

> On 01/03/2017 03:41 AM, Alison Wang wrote:
> > As NAND support for Freescale/NXP IFC controller is available on
> > LS1021A, the dependency for LS1021A is added.
> 
> Does LS stand for LayerScape ? Yes it does. So why does ARCH_LAYERSCAPE
> not cover LS1021 ?
[Alison Wang] LS1021A is an earlier product and is not compatible with later Layerscape architecture. So ARCH_LAYERSCAPE can't cover LS1021A.

> 
> > Signed-off-by: Alison Wang <alison.wang@....com>
> > ---
> > Changes in v2:
> > - None
> >
> >  drivers/mtd/nand/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
> index
> > 353a9dd..85e3860 100644
> > --- a/drivers/mtd/nand/Kconfig
> > +++ b/drivers/mtd/nand/Kconfig
> > @@ -441,7 +441,7 @@ config MTD_NAND_FSL_ELBC
> >
> >  config MTD_NAND_FSL_IFC
> >  	tristate "NAND support for Freescale IFC controller"
> > -	depends on FSL_SOC || ARCH_LAYERSCAPE
> > +	depends on FSL_SOC || ARCH_LAYERSCAPE || SOC_LS1021A
> >  	select FSL_IFC
> >  	select MEMORY
> >  	help
> >

Best Regards,
Alison Wang