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[8/9] ARM: berlin: Add phy-connection-type to BG2Q PHY

Message ID 1413881627-21639-9-git-send-email-sebastian.hesselbarth@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sebastian Hesselbarth Oct. 21, 2014, 8:53 a.m. UTC
From: Antoine Ténart <antoine.tenart@free-electrons.com>

Internal FastEthernet PHY on BG2Q is connected via MII, add a
corresponding phy-connection-type property.

Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Antoine Ténart" <antoine.tenart@free-electrons.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm/boot/dts/berlin2q.dtsi | 1 +
 1 file changed, 1 insertion(+)

Comments

Sergei Shtylyov Oct. 21, 2014, 11:31 a.m. UTC | #1
Hello.

On 10/21/2014 12:53 PM, Sebastian Hesselbarth wrote:

> From: Antoine Ténart <antoine.tenart@free-electrons.com>

> Internal FastEthernet PHY on BG2Q is connected via MII, add a
> corresponding phy-connection-type property.

> Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
> ---
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: "Antoine Ténart" <antoine.tenart@free-electrons.com>
> Cc: Florian Fainelli <f.fainelli@gmail.com>
> Cc: Eric Miao <eric.y.miao@gmail.com>
> Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: netdev@vger.kernel.org
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
>   arch/arm/boot/dts/berlin2q.dtsi | 1 +
>   1 file changed, 1 insertion(+)

> diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
> index 891d56b03922..6dbc520bddc1 100644
> --- a/arch/arm/boot/dts/berlin2q.dtsi
> +++ b/arch/arm/boot/dts/berlin2q.dtsi
> @@ -127,6 +127,7 @@
>   			status = "disabled";
>
>   			ethphy0: ethernet-phy@0 {
> +				phy-connection-type = "mii";

    You're adding this prop to the PHY node? That's very weird... normally, 
it's a property of a MDIO bus node.

[...]

WBR, Sergei
Sebastian Hesselbarth Oct. 21, 2014, 11:46 a.m. UTC | #2
On 21.10.2014 13:31, Sergei Shtylyov wrote:
> Hello.
>
> On 10/21/2014 12:53 PM, Sebastian Hesselbarth wrote:
>
>> From: Antoine Ténart <antoine.tenart@free-electrons.com>
>
>> Internal FastEthernet PHY on BG2Q is connected via MII, add a
>> corresponding phy-connection-type property.
>
>> Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
>> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
>> ---
>> Cc: "David S. Miller" <davem@davemloft.net>
>> Cc: "Antoine Ténart" <antoine.tenart@free-electrons.com>
>> Cc: Florian Fainelli <f.fainelli@gmail.com>
>> Cc: Eric Miao <eric.y.miao@gmail.com>
>> Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
>> Cc: linux-arm-kernel@lists.infradead.org
>> Cc: netdev@vger.kernel.org
>> Cc: devicetree@vger.kernel.org
>> Cc: linux-kernel@vger.kernel.org
>> ---
>>   arch/arm/boot/dts/berlin2q.dtsi | 1 +
>>   1 file changed, 1 insertion(+)
>
>> diff --git a/arch/arm/boot/dts/berlin2q.dtsi
>> b/arch/arm/boot/dts/berlin2q.dtsi
>> index 891d56b03922..6dbc520bddc1 100644
>> --- a/arch/arm/boot/dts/berlin2q.dtsi
>> +++ b/arch/arm/boot/dts/berlin2q.dtsi
>> @@ -127,6 +127,7 @@
>>               status = "disabled";
>>
>>               ethphy0: ethernet-phy@0 {
>> +                phy-connection-type = "mii";
>
>     You're adding this prop to the PHY node? That's very weird...
> normally, it's a property of a MDIO bus node.

Sergei,

How can this be a property of the MDIO bus node? Just think of an MDIO
bus with two PHYs where one is connected via GMII and the other via
RGMII? How should this work?

But you are right that the property should not be part of the PHY node
but the controller node instead. I'll rework and send an update, thanks
for the hint.

Sebastian
Sergei Shtylyov Oct. 21, 2014, 12:08 p.m. UTC | #3
On 10/21/2014 3:46 PM, Sebastian Hesselbarth wrote:

>>> From: Antoine Ténart <antoine.tenart@free-electrons.com>

>>> Internal FastEthernet PHY on BG2Q is connected via MII, add a
>>> corresponding phy-connection-type property.

>>> Tested-by: Antoine Ténart <antoine.tenart@free-electrons.com>
>>> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
>>> ---
>>> Cc: "David S. Miller" <davem@davemloft.net>
>>> Cc: "Antoine Ténart" <antoine.tenart@free-electrons.com>
>>> Cc: Florian Fainelli <f.fainelli@gmail.com>
>>> Cc: Eric Miao <eric.y.miao@gmail.com>
>>> Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
>>> Cc: linux-arm-kernel@lists.infradead.org
>>> Cc: netdev@vger.kernel.org
>>> Cc: devicetree@vger.kernel.org
>>> Cc: linux-kernel@vger.kernel.org
>>> ---
>>>   arch/arm/boot/dts/berlin2q.dtsi | 1 +
>>>   1 file changed, 1 insertion(+)

>>> diff --git a/arch/arm/boot/dts/berlin2q.dtsi
>>> b/arch/arm/boot/dts/berlin2q.dtsi
>>> index 891d56b03922..6dbc520bddc1 100644
>>> --- a/arch/arm/boot/dts/berlin2q.dtsi
>>> +++ b/arch/arm/boot/dts/berlin2q.dtsi
>>> @@ -127,6 +127,7 @@
>>>               status = "disabled";
>>>
>>>               ethphy0: ethernet-phy@0 {
>>> +                phy-connection-type = "mii";

>>     You're adding this prop to the PHY node? That's very weird...
>> normally, it's a property of a MDIO bus node.

> Sergei,

> How can this be a property of the MDIO bus node? Just think of an MDIO
> bus with two PHYs where one is connected via GMII and the other via
> RGMII? How should this work?

    Hm, this is an unexpected case...

> But you are right that the property should not be part of the PHY node
> but the controller node instead. I'll rework and send an update, thanks
> for the hint.

    Oh, not at all. :-)

> Sebastian

WBR, Sergei
diff mbox

Patch

diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 891d56b03922..6dbc520bddc1 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -127,6 +127,7 @@ 
 			status = "disabled";
 
 			ethphy0: ethernet-phy@0 {
+				phy-connection-type = "mii";
 				reg = <0>;
 			};
 		};