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Message-ID: <21a9cd2d-3c9c-dd2c-c86a-b1099c61f6fd@broadcom.com>
Date:   Sun, 13 Aug 2023 07:58:43 -0700
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Subject: Re: [PATCH net v2] net: phy: broadcom: stub c45 read/write for 54810
To:     Justin Chen <justin.chen@broadcom.com>, netdev@vger.kernel.org
Cc:     Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@broadcom.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Russell King <linux@armlinux.org.uk>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Jon Mason <jon.mason@broadcom.com>,
        open list <linux-kernel@vger.kernel.org>
References: <1691901708-28650-1-git-send-email-justin.chen@broadcom.com>
From:   Florian Fainelli <florian.fainelli@broadcom.com>
In-Reply-To: <1691901708-28650-1-git-send-email-justin.chen@broadcom.com>
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On 8/12/2023 9:41 PM, Justin Chen wrote:
> The 54810 does not support c45. The mmd_phy_indirect accesses return
> arbirtary values leading to odd behavior like saying it supports EEE
> when it doesn't. We also see that reading/writing these non-existent
> MMD registers leads to phy instability in some cases.
> 
> Fixes: b14995ac2527 ("net: phy: broadcom: Add BCM54810 PHY entry")
> Signed-off-by: Justin Chen <justin.chen@broadcom.com>

Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

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