Hi Andrew,
On Tue, Feb 20, 2018 at 03:28:17AM +0100, Andrew Lunn wrote:
> Hi Paul
>
> Here is my stab at converting the OKI PCH GBE to use the common MDIO
> bus and phylib drivers. This is compile tested only, and pretty much
> guaranteed to be broken. But hopefully it will help you. Feel free to
> pick it up and make it work. Without hardware, there is not much more
> i can do, other than answer questions.
Thanks - this will be useful :) I'll try to find some time to get it
running this week.
> The handling of the GPIO for reset is possibly wrong.
>
> 1) It is probably active high, when active low is wanted. Your patch
>would sort this out.
>
> 2) It is possible the reset happens too late. Since there is no device
>tree binding for the minnow board, it is not possible to register
>the gpio with the core code until after it has been probed and
>attached to the MAC. If the PHY is being held in reset, it might
>not respond to the bus scan, and hence we fail to find it. If that
>is true, we need a different solution.
Note that unfortunately I don't have access to the Minnow platform which
the driver as-is currently supports, so I won't be able to observe any
Minnow-specific issues either.
Thanks,
Paul
> Andrew Lunn (2):
> net: phy: at803x: Export at803x_debug_reg_mask()
> net: ethernet: pch_gbe: Convert to mdiobus and phylib
>
> drivers/net/ethernet/oki-semi/pch_gbe/Kconfig | 1 +
> drivers/net/ethernet/oki-semi/pch_gbe/Makefile | 2 +-
> drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h| 35 +-
> .../net/ethernet/oki-semi/pch_gbe/pch_gbe_api.c| 118 ---
> .../net/ethernet/oki-semi/pch_gbe/pch_gbe_api.h| 8 +-
> .../ethernet/oki-semi/pch_gbe/pch_gbe_ethtool.c| 89 +
> .../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 373 ++--
> .../net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c | 265 ---
> .../net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c| 377
> -
> .../net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.h| 37 --
> drivers/net/phy/at803x.c | 5 +-
> include/linux/at803x_phy.h | 16 +
> 12 files changed, 227 insertions(+), 1099 deletions(-)
> delete mode 100644 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.c
> delete mode 100644 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_phy.h
> create mode 100644 include/linux/at803x_phy.h
>
> --
> 2.16.1
>
