linux-kernel - Re: [PATCH v7 3/4] dt-bindings: ethernet-phy: add optional brr-mode flag

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Date: Wed, 19 Jun 2024 11:37:13 +0100
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: Kamil Horák - 2N <kamilh@...s.com>,
 bcm-kernel-feedback-list@...adcom.com, andrew@...n.ch, hkallweit1@...il.com,
 linux@...linux.org.uk, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 3/4] dt-bindings: ethernet-phy: add optional brr-mode
 flag



On 6/17/2024 12:38 PM, Kamil Horák - 2N wrote:
> There is a group of PHY chips supporting BroadR-Reach link modes in
> a manner allowing for more or less identical register usage as standard
> Clause 22 PHY.
> These chips support standard Ethernet link modes as well, however, the
> circuitry is mutually exclusive and cannot be auto-detected.
> The link modes in question are 100Base-T1 as defined in IEEE802.3bw,
> based on Broadcom's 1BR-100 link mode, and newly defined 10Base-T1BRR
> (1BR-10 in Broadcom documents).
> 
> Add optional brr-mode flag to switch the PHY to BroadR-Reach mode.
> 
> Signed-off-by: Kamil Horák - 2N <kamilh@...s.com>

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

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