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Wysocki" , Cristi Sovaiala , Ioana Ciornei , Florian Fainelli , "Rajesh V . Bikkina" , Pankaj Bansal , Russell King - ARM Linux admin , Diana Madalina Craciun , ACPI Devel Maling List , Andy Shevchenko , Florin Laurentiu Chiculita , Madalin Bucur , Makarand Pawagi , Varun Sethi , Marcin Wojtas , linux-arm Mailing List , Laurentiu Tudor , Greg Kroah-Hartman , Linux Kernel Mailing List , linux.cj@gmail.com, netdev , "David S. Miller" , Heiner Kallweit Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 08, 2020 at 05:48:33PM -0500, Jeremy Linton wrote: > Hi, > > On 5/8/20 3:27 PM, Andrew Lunn wrote: > > > > There is a very small number of devices where the vendor messed up, > > > > and did not put valid contents in the ID registers. In such cases, we > > > > can read the IDs from device tree. These are then used in exactly the > > > > same way as if they were read from the device. > > > > > > > > > > Is that the case here? > > > > Sorry, I don't understand the question? > > I was asking in general, does this machine report the ID's correctly. More > directed at Calvin, but part of it is the board vendor too. So I suspect no > one can really answer "yes", despite that seeming to be the case. I had tested RGMII PHYs(AR8035) with c22 using mdiobus_register. Vendor ID was read out correctly while autoprobing. AQR107(c45) PHYs that were connected gave back 0x00. This is expected because the MDIO bus is configured to talk c22. Regards Calvin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel