[U-Boot] [PATCH v3 1/3] net: phy: Add support for accessing MMD PHY registers

[Joe Hershberger]

On Wed, Jan 23, 2019 at 10:07 AM Carlo Caione <ccaione at baylibre.com> wrote:
>
> Two new helper functions (phy_read_mmd() and phy_write_mmd()) are added
> to allow access to the MMD PHY registers.
>
> The MMD PHY registers can be accessed by two means:
>
> 1. Using two new MMD access function hooks in the PHY driver. These
> functions can be implemented when the PHY driver does not support the
> standard IEEE Compatible clause 45 access mechanism described in clause
> 22 or if the PHY uses its own non-standard access mechanism.
>
> 2. The standard clause 45 access extensions to the MMD registers through
> the indirection registers (clause 22) in all the other cases.
>
> Signed-off-by: Carlo Caione <ccaione at baylibre.com>

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