linux-kernel - Re: [PATCH v3 0/5] ARM: Add GXP UMAC Support

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Message-ID: <d37e1a1a-eea3-4151-b0a9-449049707b05@lunn.ch>
Date:   Thu, 17 Aug 2023 03:08:23 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     nick.hawkins@....com
Cc:     christophe.jaillet@...adoo.fr, simon.horman@...igine.com,
        verdun@....com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/5] ARM: Add GXP UMAC Support

> Changes since v2:
>  *Removed PHY Configuration from MAC driver to Bootloader

By PHY, you mean PCS?

Can you still dynamically swap between 1000BaseX and SGMII?
Is there an interface to determine if the PCS has link?

Is the PHY code upstream in uboot and barebox? Can you detect when it
is missing because the vendor bootloader has been replaced, and report
useful error messages?

       Andrew