From mboxrd@z Thu Jan 1 00:00:00 1970 From: antoine.tenart@free-electrons.com (Antoine Tenart) Date: Wed, 7 Jun 2017 16:42:32 +0200 Subject: [PATCH 7/9] net: mvmdio: add xmdio support In-Reply-To: <20170607121205.GC1271@lunn.ch> References: <20170607083810.30922-1-antoine.tenart@free-electrons.com> <20170607083810.30922-8-antoine.tenart@free-electrons.com> <20170607121205.GC1271@lunn.ch> Message-ID: <20170607144232.GA4173@kwain> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Andrew, On Wed, Jun 07, 2017 at 02:12:05PM +0200, Andrew Lunn wrote: > On Wed, Jun 07, 2017 at 10:38:08AM +0200, Antoine Tenart wrote: > > This patch adds the xMDIO interface support in the mvmdio driver. This > > interface is used in Ethernet controllers on Marvell 370, 7k and 8k (as > > of now). The xSMI interface supported by this driver complies with the > > IEEE 802.3 clause 45 (while the SMI interface complies with the clause > > 22). The xSMI interface is used by 10GbE devices. > > I've only take a quick look, but i don't see anywhere you look at the > register address and see if it has MII_ADDR_C45 to determine if a C45 > transaction should be done, or a C22. The MDIO bus can have a mix of > C45 and C22 devices on it, and you need to use the correct transaction > type depending on the target device/address. So this could be dynamic and not based on the compatible. I'll try this and see if it can work. Thanks! -- Antoine T?nart, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: not available URL: