linux-kernel - Re: [PATCH v1 1/3] dt-bindings: net: bcmgenet add property for max DMA burst size

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Message-ID: <2d4be474-95f1-9ef7-4485-46f7e5565d8c@gmail.com>
Date:   Fri, 11 Oct 2019 12:07:58 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     matthias.bgg@...nel.org, "David S . Miller" <davem@...emloft.net>
Cc:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Stefan Wahren <wahrenst@....net>,
        Matthias Brugger <mbrugger@...e.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v1 1/3] dt-bindings: net: bcmgenet add property for max
 DMA burst size

On 10/11/19 11:48 AM, matthias.bgg@...nel.org wrote:
> From: Matthias Brugger <mbrugger@...e.com>
> 
> The maximal usable DMA burst size can vary in different SoCs.
> Add a optional property to configure the DMA channels properly.
> 
> Signed-off-by: Matthias Brugger <mbrugger@...e.com>

There are enough differences in the integration of GENET in 2711 (versus
any other STB chip where it has been used) that a brcm,bcm2711-genet-v5
compatible string would be in order. From there, you can derive the DMA
burst size without using additional properties.
-- 
Florian