linux-kernel - Re: [PATCH 2/4] net: dsa: b53: mmap: add more BCM63xx SoCs

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Message-ID: <CAKR-sGf1XFP1pE1KmQVQmZADc6udS_8+qqM5NvrNZ266VPkMtw@mail.gmail.com>
Date:   Mon, 20 Mar 2023 20:56:58 +0100
From:   Álvaro Fernández Rojas <noltari@...il.com>
To:     Simon Horman <simon.horman@...igine.com>
Cc:     f.fainelli@...il.com, andrew@...n.ch, olteanv@...il.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] net: dsa: b53: mmap: add more BCM63xx SoCs

El lun, 20 mar 2023 a las 20:54, Simon Horman
(<simon.horman@...igine.com>) escribió:
>
> On Mon, Mar 20, 2023 at 04:50:22PM +0100, Álvaro Fernández Rojas wrote:
> > BCM6318, BCM6362 and BCM63268 are SoCs with a B53 MMAP switch.
> >
> > Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
> > ---
> >  drivers/net/dsa/b53/b53_mmap.c | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c
> > index 70887e0aece3..464c77e10f60 100644
> > --- a/drivers/net/dsa/b53/b53_mmap.c
> > +++ b/drivers/net/dsa/b53/b53_mmap.c
> > @@ -331,8 +331,11 @@ static void b53_mmap_shutdown(struct platform_device *pdev)
> >
> >  static const struct of_device_id b53_mmap_of_table[] = {
> >       { .compatible = "brcm,bcm3384-switch" },
> > +     { .compatible = "brcm,bcm6318-switch" },
> >       { .compatible = "brcm,bcm6328-switch" },
> > +     { .compatible = "brcm,bcm6362-switch" },
> >       { .compatible = "brcm,bcm6368-switch" },
> > +     { .compatible = "brcm,bcm63268-switch" },
>
> This patch adds support to this driver for "brcm,bcm63268-switch".
> However, less I am mistaken, this support doesn't work without
> patches 3/4 and 4/4 of this series.

It works for those devices which only use ports 0-3 (Comtrend VR-3032u
for example).
If the device has a external switch or uses any of the RGMIIs then it
won't configure those ports properly.

>
> I think it would be better to re-range this series so
> that support for "brcm,bcm63268-switch" works when it is
> added to/enabled in the driver.
>
> >       { .compatible = "brcm,bcm63xx-switch" },
> >       { /* sentinel */ },
> >  };
> > --
> > 2.30.2
> >