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Subject: Re: [PATCH 2/2] ARM: dts: Add the ethernet and ethernet PHY to the
 cygnus core DT.
To: Jon Mason <jon.mason@broadcom.com>
References: <20170424215022.30382-1-eric@anholt.net>
 <20170424215022.30382-3-eric@anholt.net>
 <f870339f-2fa1-411d-5ce8-adbe8802d8a8@cogentembedded.com>
 <CAC3K-4qn5oCXvyMCkFESGqMHqHXGiNUW6wfRx2LUZ8qZ39qroQ@mail.gmail.com>
Cc: Eric Anholt <eric@anholt.net>, Florian Fainelli <f.fainelli@gmail.com>,
        Vivien Didelot <vivien.didelot@savoirfairelinux.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Network Development <netdev@vger.kernel.org>,
        Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
        open list <linux-kernel@vger.kernel.org>,
        BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
        Ray Jui <rjui@broadcom.com>, Scott Branden <sbranden@broadcom.com>,
        Jon Mason <jonmason@broadcom.com>
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Organization: Cogent Embedded
Message-ID: <44d0c48c-d80f-271e-0e19-ac87a53e2e53@cogentembedded.com>
Date: Tue, 25 Apr 2017 18:23:15 +0300
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Hello!

On 04/25/2017 06:15 PM, Jon Mason wrote:

>>> Cygnus has a single amac controller connected to the B53 switch with 2
>>> PHYs.  On the BCM911360_EP platform, those two PHYs are connected to
>>> the external ethernet jacks.

[...]

>>> Signed-off-by: Eric Anholt <eric@anholt.net>
>>> ---
>>>  arch/arm/boot/dts/bcm-cygnus.dtsi      | 60
>>> ++++++++++++++++++++++++++++++++++
>>>  arch/arm/boot/dts/bcm911360_entphn.dts |  8 +++++
>>>  2 files changed, 68 insertions(+)
>>>
>>> diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi
>>> b/arch/arm/boot/dts/bcm-cygnus.dtsi
>>> index 009f1346b817..318899df9972 100644
>>> --- a/arch/arm/boot/dts/bcm-cygnus.dtsi
>>> +++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
[...]
>>> @@ -295,6 +345,16 @@
>>>                         status = "disabled";
>>>                 };
>>>
>>> +               eth0: enet@18042000 {
>>> +                       compatible = "brcm,amac";
>>> +                       reg = <0x18042000 0x1000>,
>>> +                             <0x18110000 0x1000>;
>>> +                       reg-names = "amac_base", "idm_base";
>>
>>
>>    I don't think "_base" suffixes are necessary here.
>
> 100% necessary, per the driver.  See
> drivers/net/ethernet/broadcom/bgmac-platform.c

    I'd recommend to fix the driver/bindings then...

MBR, Sergei