RE: [PATCH net-next v2 0/4] net: ethernet: renesas: rswitch: Modify initialization for SERDES and PHY

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Hi Russell,

> From: Russell King, Sent: Tuesday, January 10, 2023 11:36 PM
> 
> On Tue, Jan 10, 2023 at 02:02:02PM +0900, Yoshihiro Shimoda wrote:
> > The patch [1/4] sets phydev->host_interfaces by phylink for Marvell PHY
> > driver (marvell10g) to initialize the MACTYPE.
> 
> I don't yet understand the "why" behind the need for this. Doesn't your
> platform strap the 88x3310 correctly, so MACTYPE is properly set?

Oops! I should have shared why the patches are needed.

You're correct.
- 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.

Best regards,
Yoshihiro Shimoda





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