netdev - [PATCH net-next v3 0/4] net: ethernet: renesas: rswitch: Modify initialization for SERDES and PHY

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Date:   Fri, 27 Jan 2023 10:48:08 +0900
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     linux@...linux.org.uk, andrew@...n.ch, hkallweit1@...il.com,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Subject: [PATCH net-next v3 0/4] net: ethernet: renesas: rswitch: Modify initialization for SERDES and PHY

- My platform has the 88x2110.
- The MACTYPE setting of strap pin on the platform is SXGMII.
- However, we realized that the SoC cannot communicate the PHY with SXGMII
  because of mismatching hardware specification.
- We have a lot of boards which mismatch the MACTYPE setting.

So, I would like to change the MACTYPE as SGMII by software for the platform.

The patch [1/4] sets phydev->host_interfaces by phylink for Marvell PHY
driver (marvell10g) to initialize the MACTYPE.

The patch [2/4] siplifies the rswitch driver, the patch [3/4] enables
the ovr_host_interfaces flag, and the patch [4/4] phy_power_on() calling
to initialize the Ethernet SERDES PHY driver (r8a779f0-eth-serdes)
for each channel.

Changes from v2:
https://lore.kernel.org/all/20230110050206.116110-1-yoshihiro.shimoda.uh@renesas.com/
 - Add some blank lines for readability.

Changes from v1:
https://lore.kernel.org/all/20221226071425.3895915-1-yoshihiro.shimoda.uh@renesas.com/
 - Add a new flag (ovr_host_interfaces) into phylink_config in the patch [1/4].
 - Add a new patch [3/4] for the new flag.
 - Add a error message to the patch [4/4/] for MLO_AN_INBAND mode.

Yoshihiro Shimoda (4):
  net: phylink: Set host_interfaces for a non-sfp PHY
  net: ethernet: renesas: rswitch: Simplify struct phy * handling
  net: ethernet: renesas: rswitch: Enable ovr_host_interfaces
  net: ethernet: renesas: rswitch: Add phy_power_{on,off}() calling

 drivers/net/ethernet/renesas/rswitch.c | 53 +++++++++++++++-----------
 drivers/net/ethernet/renesas/rswitch.h |  1 +
 drivers/net/phy/phylink.c              | 11 ++++++
 include/linux/phylink.h                |  3 ++
 4 files changed, 46 insertions(+), 22 deletions(-)

-- 
2.25.1