From mboxrd@z Thu Jan 1 00:00:00 1970 From: sbabic at denx.de Date: Mon, 11 May 2020 12:18:43 +0200 (CEST) Subject: [PATCH V2 2/8] net: Add eth phy generic driver for shared MDIO In-Reply-To: <20200503144120.30038-2-peng.fan@nxp.com> Message-ID: <20200511101843.387F7812FE@phobos.denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de > From: Ye Li > For dual ethernet controllers, the HW design may connect ETH phys to > one MDIO ports. So two different ethernet drivers have to share MDIO bus. > Since two ethernet drivers are independent, we can't ensure their probe > order. > To resolve this problem, introduce an eth phy generic driver and uclass. > After eth-uclass binds, we search the mdio node and binds the phy node > with the eth-phy-generic driver. > When one eth driver get its phy device, the parent of phy device will > probe prior than phy device. So this ensure the eth driver ownes the > MDIO bus will be probed before using its MDIO. > Signed-off-by: Ye Li > Signed-off-by: Peng Fan Applied to u-boot-imx, master, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================