Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 31 Mar 2020 08:54:57 +0100
From:   Russell King - ARM Linux admin <linux@armlinux.org.uk>
To:     Marc Kleine-Budde <mkl@pengutronix.de>
Cc:     Florian Fainelli <f.fainelli@gmail.com>,
        Andrew Lunn <andrew@lunn.ch>, netdev@vger.kernel.org,
        Sascha Hauer <s.hauer@pengutronix.de>,
        linux-kernel@vger.kernel.org,
        Oleksij Rempel <o.rempel@pengutronix.de>, linux-imx@nxp.com,
        kernel@pengutronix.de, David Jander <david@protonic.nl>,
        Shawn Guo <shawnguo@kernel.org>,
        Fabio Estevam <festevam@gmail.com>,
        linux-arm-kernel@lists.infradead.org,
        Heiner Kallweit <hkallweit1@gmail.com>
Subject: Re: [PATCH v2] ARM: imx: allow to disable board specific PHY fixups
Message-ID: <20200331075457.GJ25745@shell.armlinux.org.uk>
References: <20200329110457.4113-1-o.rempel@pengutronix.de>
 <20200329150854.GA31812@lunn.ch>
 <20200330052611.2bgu7x4nmimf7pru@pengutronix.de>
 <40209d08-4acb-75c5-1766-6d39bb826ff9@gmail.com>
 <20200330174114.GG25745@shell.armlinux.org.uk>
 <5ae5c0de-f05c-5e3f-86e1-a9afdd3e1ef1@pengutronix.de>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <5ae5c0de-f05c-5e3f-86e1-a9afdd3e1ef1@pengutronix.de>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Tue, Mar 31, 2020 at 09:47:19AM +0200, Marc Kleine-Budde wrote:
> On 3/30/20 7:41 PM, Russell King - ARM Linux admin wrote:
> >>> arch/arm/mach-imx/mach-imx6q.c:167:		phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
> >>> arch/arm/mach-imx/mach-imx6q.c:169:		phy_register_fixup_for_uid(PHY_ID_KSZ9031, MICREL_PHY_ID_MASK,
> >>> arch/arm/mach-imx/mach-imx6q.c:171:		phy_register_fixup_for_uid(PHY_ID_AR8031, 0xffffffef,
> >>> arch/arm/mach-imx/mach-imx6q.c:173:		phy_register_fixup_for_uid(PHY_ID_AR8035, 0xffffffef,
> > 
> > As far as I'm concerned, the AR8035 fixup is there with good reason.
> > It's not just "random" but is required to make the AR8035 usable with
> > the iMX6 SoCs.  Not because of a board level thing, but because it's
> > required for the AR8035 to be usable with an iMX6 SoC.
> 
> Is this still ture, if the AR8035 is attached to a switch behind an iMX6?

Do you know of such a setup, or are you talking about theoretical
situations?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up