netdev - Re: [PATCH net-next 4/6] net: dsa: mt7530: Add the support of MT7531 switch

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Date:   Tue, 10 Dec 2019 17:35:57 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Landen Chao <landen.chao@...iatek.com>
Cc:     f.fainelli@...il.com, vivien.didelot@...oirfairelinux.com,
        matthias.bgg@...il.com, robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        davem@...emloft.net, sean.wang@...iatek.com, opensource@...rst.com,
        frank-w@...lic-files.de
Subject: Re: [PATCH net-next 4/6] net: dsa: mt7530: Add the support of MT7531
 switch

On Tue, Dec 10, 2019 at 04:14:40PM +0800, Landen Chao wrote:
> Add new support for MT7531:
> 
> MT7531 is the next generation of MT7530. It is also a 7-ports switch with
> 5 giga embedded phys, 2 cpu ports, and the same MAC logic of MT7530. Cpu
> port 6 only supports HSGMII interface. Cpu port 5 supports either RGMII
> or HSGMII in different HW sku.

Hi Landen

Looking at the code, you seem to treat HSGMII as 2500Base-X. Is this
correct? Or is it SGMII over clocked to 2.5Gbps?

	 Andrew