linux-kernel - Re: [PATCH v2] arm64: configs: Enable PCIe support for imx8mq boards

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Message-ID: <CAEyMn7b3qGupUh28rgf3THW7+8aNwCVnxtmOyS8MJXgJ3UuE7A@mail.gmail.com>
Date:   Wed, 17 Mar 2021 12:52:29 +0100
From:   Heiko Thiery <heiko.thiery@...il.com>
To:     Shawn Guo <shawnguo@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Lucas Stach <l.stach@...gutronix.de>,
        Baruch Siach <baruch@...s.co.il>,
        Fabio Estevam <festevam@...il.com>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        Chris Healy <cphealy@...il.com>
Subject: Re: [PATCH v2] arm64: configs: Enable PCIe support for imx8mq boards

Hi Shawn,

Am Mi., 17. März 2021 um 09:02 Uhr schrieb Shawn Guo <shawnguo@...nel.org>:
>
> On Thu, Mar 11, 2021 at 08:27:47PM +0100, Heiko Thiery wrote:
> > Enable PCI_IMX6 to get PCI support for imx8mq boards like imx8mq-evk,
> > imx8mq-kontron-pitx-imx8m and imx8mq-zii-ultra.
> >
> > Signed-off-by: Heiko Thiery <heiko.thiery@...il.com>
> > ---
> > v2:
> >  - slightly modified the commit message (Fabio Estevam)
> >
> >  arch/arm64/configs/defconfig | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> > index 1f673b00c5f5..522bae6a8f21 100644
> > --- a/arch/arm64/configs/defconfig
> > +++ b/arch/arm64/configs/defconfig
> > @@ -225,6 +225,7 @@ CONFIG_PCI_HOST_THUNDER_PEM=y
> >  CONFIG_PCI_HOST_THUNDER_ECAM=y
> >  CONFIG_PCIE_ROCKCHIP_HOST=m
> >  CONFIG_PCIE_BRCMSTB=m
> > +CONFIG_PCI_IMX6=y
>
> Do we really want it to be built-in?  If so, it would be nice to have some
> comments about that in commit log.

Why would you not want it? I see other SOC PCI controllers are also
enabled. I would like to have it because we have an Intel e1000 on our
pitx-imx8m board and the seconds PCI slot is for a m.2 card. So we
would have the PCI support with the default defconfig. On the NXP
imx8mq EVK a m.2 is connected to the PCI interface.

Is this the kind of comments you want?

> Shawn
>
> >  CONFIG_PCI_LAYERSCAPE=y
> >  CONFIG_PCIE_LAYERSCAPE_GEN4=y
> >  CONFIG_PCI_HISI=y
> > --
> > 2.30.0
> >

BR
-- 
Heiko
-- 
Heiko