linux-kernel - Re: [PATCH v2 devicetree 0/3] NXP LS1028A DT changes for multiple switch CPU ports

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Message-ID: <20220905032450.GH1728671@dragon>
Date:   Mon, 5 Sep 2022 11:24:50 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     devicetree@...r.kernel.org, netdev@...r.kernel.org,
        Li Yang <leoyang.li@....com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Michael Walle <michael@...le.cc>
Subject: Re: [PATCH v2 devicetree 0/3] NXP LS1028A DT changes for multiple
 switch CPU ports

On Wed, Aug 31, 2022 at 07:01:21PM +0300, Vladimir Oltean wrote:
> The Ethernet switch embedded within the NXP LS1028A has 2 Ethernet ports
> towards the host, for local packet termination. In current device trees,
> only the first port is enabled. Enabling the second port allows having a
> higher termination throughput.
> 
> Care has been taken that this change does not produce regressions when
> using updated device trees with old kernels that do not support multiple
> DSA CPU ports. The only difference for old kernels will be the
> appearance of a new net device (for &enetc_port3) which will not be very
> useful for much of anything.
> 
> Vladimir Oltean (3):
>   arm64: dts: ls1028a: move DSA CPU port property to the common SoC dtsi
>   arm64: dts: ls1028a: mark enetc port 3 as a DSA master too
>   arm64: dts: ls1028a: enable swp5 and eno3 for all boards

Applied all, thanks!