[U-Boot] [PATCH v2 4/6] Create PHY Lib for U-Boot

[Detlev Zundel <dzu@denx.de>]

Hi Andy,

> Extends the mii_dev structure to participate in a full-blown MDIO and
> PHY driver scheme.  The mii_dev structure and miiphy calls are modified
> in such a way to allow the original mii command and miiphy
> infrastructure to work as before, but also to support a new set of APIs
> which allow (among other things) sharing of PHY driver code and 10G support
>
> The mii command will continue to support normal PHY management functions
> (Clause 22 of 802.3), but will not be changed to support 10G
> (Clause 45).
>
> The basic design is similar to PHY Lib from Linux, but simplified for
> U-Boot's network and driver infrastructure.
>
> We now have MDIO drivers and PHY drivers
>
> An MDIO driver provides:
> read
> write
> reset
>
> A PHY driver provides:
> (optionally): probe
> config - initial setup, starting of auto-negotiation
> startup - waiting for AN, and reading link state
> shutdown - any cleanup needed
>
> The ethernet drivers interact with the PHY Lib using these functions:
> phy_connect()
> phy_config()
> phy_startup()
> phy_shutdown()
>
> Each PHY driver can be configured separately, or all at once using
> phylib_all_drivers.h (added in the patch which adds the drivers)
>
> In the process, cleaned up a number of whitespace issues in miiphyutil.c
>
> Signed-off-by: Andy Fleming <afleming@freescale.com>
> ---
> * Fixed some sparse warnings/errors
> * Changed headers for new files to GPL v2+
> * Removed the unexplained 500ms delay after autonegotiation

Looks good, thanks!

Acked-by: Detlev Zundel <dzu@denx.de>

Cheers
  Detlev

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