[U-Boot] [PATCH v4 2/2] mdio: add marvell MDIO driver

[Joe Hershberger]

On Thu, Jul 5, 2018 at 2:34 AM,  <make at marvell.com> wrote:
> From: Ken Ma <make at marvell.com>
>
> This patch adds a separate driver for the MDIO interface of the
> Marvell Ethernet controllers based on driver model. There are two
> reasons to have a separate driver rather than including it inside
> the MAC driver itself:
>   *) The MDIO interface is shared by all Ethernet ports, so a driver
>      must guarantee non-concurrent accesses to this MDIO interface. The
>      most logical way is to have a separate driver that handles this
>      single MDIO interface, used by all Ethernet ports.
>   *) The MDIO interface is the same between the existing mv643xx_eth
>      driver and the new mvneta/mvpp2 driver. Even though it is for now
>      only used by the mvneta/mvpp2 driver, it will in the future be
>      used by the mv643xx_eth driver as well.
>
> This driver supports SMI IEEE for 802.3 Clause 22 and XSMI for IEEE
> 802.3 Clause 45.
>
> This patch also adds device tree binding for marvell MDIO driver.
>
> Signed-off-by: Ken Ma <make at marvell.com>
> Reviewed-by: Chris Packham <judge.packham at gmail.com>

Acked-by: Joe Hershberger <joe.hershberger at ni.com>