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[PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

Started byCorentin Labbe <clabbe.montjoie@gmail.com>
First post2017-08-10 11:00 +0200
Last post2017-08-11 10:20 +0200
Articles 9 — 3 participants

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  [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-08-10 11:00 +0200
    Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Chen-Yu Tsai <wens@csie.org> - 2017-08-11 04:50 +0200
      Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-08-11 10:10 +0200
        Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-08-11 10:20 +0200
          Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Chen-Yu Tsai <wens@csie.org> - 2017-08-11 10:30 +0200
            Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-08-11 10:40 +0200
            Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Corentin Labbe <clabbe.montjoie@gmail.com> - 2017-08-11 15:30 +0200
              Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY Florian Fainelli <f.fainelli@gmail.com> - 2017-08-11 17:10 +0200
        Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated  property to internal PHY Chen-Yu Tsai <wens@csie.org> - 2017-08-11 10:20 +0200

#1708341 — [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-08-10 11:00 +0200
Subject[PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<ucRtU-323-21@gated-at.bofh.it>
This patch add the new phy-is-integrated property to the internal PHY
node.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
---
 arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 4b599b5d26f6..54fc24e4c569 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -425,6 +425,7 @@
 					reg = <1>;
 					clocks = <&ccu CLK_BUS_EPHY>;
 					resets = <&ccu RST_BUS_EPHY>;
+					phy-is-integrated;
 				};
 			};
 		};
-- 
2.13.0

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#1709183 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromChen-Yu Tsai <wens@csie.org>
Date2017-08-11 04:50 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<ud8bp-6aS-21@gated-at.bofh.it>
In reply to#1708341
Hi,

On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
<clabbe.montjoie@gmail.com> wrote:
> This patch add the new phy-is-integrated property to the internal PHY
> node.
>
> Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> ---
>  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> index 4b599b5d26f6..54fc24e4c569 100644
> --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> @@ -425,6 +425,7 @@
>                                         reg = <1>;
>                                         clocks = <&ccu CLK_BUS_EPHY>;
>                                         resets = <&ccu RST_BUS_EPHY>;
> +                                       phy-is-integrated;

You also need to "delete" this property at the board level for
any board that has the external PHY at address <1>. Otherwise
they will stop working. This is due to the internal and external
PHYs having the same path and node name in the device tree, so
they are effectively the same node.

ChenYu

>                                 };
>                         };
>                 };
> --
> 2.13.0
>

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#1709358 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-08-11 10:10 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<uddb3-14n-19@gated-at.bofh.it>
In reply to#1709183
On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
> Hi,
> 
> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
> <clabbe.montjoie@gmail.com> wrote:
> > This patch add the new phy-is-integrated property to the internal PHY
> > node.
> >
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> > ---
> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> > index 4b599b5d26f6..54fc24e4c569 100644
> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> > @@ -425,6 +425,7 @@
> >                                         reg = <1>;
> >                                         clocks = <&ccu CLK_BUS_EPHY>;
> >                                         resets = <&ccu RST_BUS_EPHY>;
> > +                                       phy-is-integrated;
> 
> You also need to "delete" this property at the board level for
> any board that has the external PHY at address <1>. Otherwise
> they will stop working. This is due to the internal and external
> PHYs having the same path and node name in the device tree, so
> they are effectively the same node.
> 
> ChenYu
> 

They have not the same name, ext_rgmii_phy vs int_mii_phy.

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#1709365 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-08-11 10:20 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<uddkJ-17M-7@gated-at.bofh.it>
In reply to#1709358
On Fri, Aug 11, 2017 at 04:11:13PM +0800, Chen-Yu Tsai wrote:
> On Fri, Aug 11, 2017 at 4:05 PM, Corentin Labbe
> <clabbe.montjoie@gmail.com> wrote:
> > On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
> >> Hi,
> >>
> >> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
> >> <clabbe.montjoie@gmail.com> wrote:
> >> > This patch add the new phy-is-integrated property to the internal PHY
> >> > node.
> >> >
> >> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> >> > ---
> >> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
> >> >  1 file changed, 1 insertion(+)
> >> >
> >> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> > index 4b599b5d26f6..54fc24e4c569 100644
> >> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> > @@ -425,6 +425,7 @@
> >> >                                         reg = <1>;
> >> >                                         clocks = <&ccu CLK_BUS_EPHY>;
> >> >                                         resets = <&ccu RST_BUS_EPHY>;
> >> > +                                       phy-is-integrated;
> >>
> >> You also need to "delete" this property at the board level for
> >> any board that has the external PHY at address <1>. Otherwise
> >> they will stop working. This is due to the internal and external
> >> PHYs having the same path and node name in the device tree, so
> >> they are effectively the same node.
> >>
> >> ChenYu
> >>
> >
> > They have not the same name, ext_rgmii_phy vs int_mii_phy.
> 
> That is just the label. The label plays no part in device tree merging. The path
> 
>     /soc/ethernet@1c30000/mdio/ethernet-phy@1
> 
> is the same. You can look under
> 
>     /proc/device-tree/soc/ethernet@1c30000/mdio
> 
> on the OrangePI Plus 2E or any other H3 board that uses an
> external PHY at address 1.
> 
> ChenYu

Since we get the phy node by phy-handle and not by path, I think all should be good.

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#1709372 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromChen-Yu Tsai <wens@csie.org>
Date2017-08-11 10:30 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<uddup-1aP-7@gated-at.bofh.it>
In reply to#1709365
On Fri, Aug 11, 2017 at 4:19 PM, Corentin Labbe
<clabbe.montjoie@gmail.com> wrote:
> On Fri, Aug 11, 2017 at 04:11:13PM +0800, Chen-Yu Tsai wrote:
>> On Fri, Aug 11, 2017 at 4:05 PM, Corentin Labbe
>> <clabbe.montjoie@gmail.com> wrote:
>> > On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
>> >> Hi,
>> >>
>> >> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
>> >> <clabbe.montjoie@gmail.com> wrote:
>> >> > This patch add the new phy-is-integrated property to the internal PHY
>> >> > node.
>> >> >
>> >> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
>> >> > ---
>> >> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
>> >> >  1 file changed, 1 insertion(+)
>> >> >
>> >> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> >> > index 4b599b5d26f6..54fc24e4c569 100644
>> >> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> >> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> >> > @@ -425,6 +425,7 @@
>> >> >                                         reg = <1>;
>> >> >                                         clocks = <&ccu CLK_BUS_EPHY>;
>> >> >                                         resets = <&ccu RST_BUS_EPHY>;
>> >> > +                                       phy-is-integrated;
>> >>
>> >> You also need to "delete" this property at the board level for
>> >> any board that has the external PHY at address <1>. Otherwise
>> >> they will stop working. This is due to the internal and external
>> >> PHYs having the same path and node name in the device tree, so
>> >> they are effectively the same node.
>> >>
>> >> ChenYu
>> >>
>> >
>> > They have not the same name, ext_rgmii_phy vs int_mii_phy.
>>
>> That is just the label. The label plays no part in device tree merging. The path
>>
>>     /soc/ethernet@1c30000/mdio/ethernet-phy@1
>>
>> is the same. You can look under
>>
>>     /proc/device-tree/soc/ethernet@1c30000/mdio
>>
>> on the OrangePI Plus 2E or any other H3 board that uses an
>> external PHY at address 1.
>>
>> ChenYu
>
> Since we get the phy node by phy-handle and not by path, I think all should be good.

You are not getting me. The fact that the two seemingly separate
nodes are merged together means, whatever properties you put in
the internal PHY node, also affect the external PHY node. Once
compiled, they are the SAME node.

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#1709377 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-08-11 10:40 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<uddE5-1dP-9@gated-at.bofh.it>
In reply to#1709372
On Fri, Aug 11, 2017 at 04:22:11PM +0800, Chen-Yu Tsai wrote:
> On Fri, Aug 11, 2017 at 4:19 PM, Corentin Labbe
> <clabbe.montjoie@gmail.com> wrote:
> > On Fri, Aug 11, 2017 at 04:11:13PM +0800, Chen-Yu Tsai wrote:
> >> On Fri, Aug 11, 2017 at 4:05 PM, Corentin Labbe
> >> <clabbe.montjoie@gmail.com> wrote:
> >> > On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
> >> >> Hi,
> >> >>
> >> >> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
> >> >> <clabbe.montjoie@gmail.com> wrote:
> >> >> > This patch add the new phy-is-integrated property to the internal PHY
> >> >> > node.
> >> >> >
> >> >> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> >> >> > ---
> >> >> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
> >> >> >  1 file changed, 1 insertion(+)
> >> >> >
> >> >> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> >> > index 4b599b5d26f6..54fc24e4c569 100644
> >> >> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> >> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> >> > @@ -425,6 +425,7 @@
> >> >> >                                         reg = <1>;
> >> >> >                                         clocks = <&ccu CLK_BUS_EPHY>;
> >> >> >                                         resets = <&ccu RST_BUS_EPHY>;
> >> >> > +                                       phy-is-integrated;
> >> >>
> >> >> You also need to "delete" this property at the board level for
> >> >> any board that has the external PHY at address <1>. Otherwise
> >> >> they will stop working. This is due to the internal and external
> >> >> PHYs having the same path and node name in the device tree, so
> >> >> they are effectively the same node.
> >> >>
> >> >> ChenYu
> >> >>
> >> >
> >> > They have not the same name, ext_rgmii_phy vs int_mii_phy.
> >>
> >> That is just the label. The label plays no part in device tree merging. The path
> >>
> >>     /soc/ethernet@1c30000/mdio/ethernet-phy@1
> >>
> >> is the same. You can look under
> >>
> >>     /proc/device-tree/soc/ethernet@1c30000/mdio
> >>
> >> on the OrangePI Plus 2E or any other H3 board that uses an
> >> external PHY at address 1.
> >>
> >> ChenYu
> >
> > Since we get the phy node by phy-handle and not by path, I think all should be good.
> 
> You are not getting me. The fact that the two seemingly separate
> nodes are merged together means, whatever properties you put in
> the internal PHY node, also affect the external PHY node. Once
> compiled, they are the SAME node.

So why not changing the internal node name from ethernet-phy to integrated-phy ?

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#1709615 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromCorentin Labbe <clabbe.montjoie@gmail.com>
Date2017-08-11 15:30 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<udiaK-43p-13@gated-at.bofh.it>
In reply to#1709372
On Fri, Aug 11, 2017 at 04:22:11PM +0800, Chen-Yu Tsai wrote:
> On Fri, Aug 11, 2017 at 4:19 PM, Corentin Labbe
> <clabbe.montjoie@gmail.com> wrote:
> > On Fri, Aug 11, 2017 at 04:11:13PM +0800, Chen-Yu Tsai wrote:
> >> On Fri, Aug 11, 2017 at 4:05 PM, Corentin Labbe
> >> <clabbe.montjoie@gmail.com> wrote:
> >> > On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
> >> >> Hi,
> >> >>
> >> >> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
> >> >> <clabbe.montjoie@gmail.com> wrote:
> >> >> > This patch add the new phy-is-integrated property to the internal PHY
> >> >> > node.
> >> >> >
> >> >> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
> >> >> > ---
> >> >> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
> >> >> >  1 file changed, 1 insertion(+)
> >> >> >
> >> >> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> >> > index 4b599b5d26f6..54fc24e4c569 100644
> >> >> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> >> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> >> >> > @@ -425,6 +425,7 @@
> >> >> >                                         reg = <1>;
> >> >> >                                         clocks = <&ccu CLK_BUS_EPHY>;
> >> >> >                                         resets = <&ccu RST_BUS_EPHY>;
> >> >> > +                                       phy-is-integrated;
> >> >>
> >> >> You also need to "delete" this property at the board level for
> >> >> any board that has the external PHY at address <1>. Otherwise
> >> >> they will stop working. This is due to the internal and external
> >> >> PHYs having the same path and node name in the device tree, so
> >> >> they are effectively the same node.
> >> >>
> >> >> ChenYu
> >> >>
> >> >
> >> > They have not the same name, ext_rgmii_phy vs int_mii_phy.
> >>
> >> That is just the label. The label plays no part in device tree merging. The path
> >>
> >>     /soc/ethernet@1c30000/mdio/ethernet-phy@1
> >>
> >> is the same. You can look under
> >>
> >>     /proc/device-tree/soc/ethernet@1c30000/mdio
> >>
> >> on the OrangePI Plus 2E or any other H3 board that uses an
> >> external PHY at address 1.
> >>
> >> ChenYu
> >
> > Since we get the phy node by phy-handle and not by path, I think all should be good.
> 
> You are not getting me. The fact that the two seemingly separate
> nodes are merged together means, whatever properties you put in
> the internal PHY node, also affect the external PHY node. Once
> compiled, they are the SAME node.

Hello Rob, florian, mark

Adding a delete property on all external ethernet-phy@1 is a bit overkill, and I dont like the idea that nodes are merged.
What do you think about other possible solutions:
- Using integrated-phy@1 for the integrated PHY node name
- Using a fake address like 31 (see patch below)

If you have any other solution...

Regards

From fe39183946f7f4a6e21bce38fd8e4c1413012d68 Mon Sep 17 00:00:00 2001
From: Corentin Labbe <clabbe.montjoie@gmail.com>
Date: Fri, 11 Aug 2017 14:49:54 +0200
Subject: [PATCH] ARM: sun8i: sunxi-h3-h5: Prevent merge of external and
 integrated PHY

Actually, some external and integrated PHY are merged due to same dtnode
name "ethernet-phy@1".

This is problematic when we will want to use the phy-is-integrated
property. (Need to delete it on all external PHY node)

An easy solution is to set integrated PHY nodeaddresss at a fake one
that would never be used.
Since board makers currently only provides PHY at addresses 1 and 7,
we will use 31.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
---
 arch/arm/boot/dts/sunxi-h3-h5.dtsi | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index 54fc24e4c569..2110b0069e33 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -420,7 +420,15 @@
 			mdio: mdio {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				int_mii_phy: ethernet-phy@1 {
+				/*
+				 * Using 31 permits to make a separation between
+				 * this integrated PHY and external ones.
+				 * Without it, external "ethernet-phy@1" will be
+				 * merged with it (due to same dtnode name).
+				 * Board makers currently only provides PHY at
+				 * addresses 1 and 7.
+				 */
+				int_mii_phy: ethernet-phy@31 {
 					compatible = "ethernet-phy-ieee802.3-c22";
 					reg = <1>;
 					clocks = <&ccu CLK_BUS_EPHY>;
-- 
2.13.0

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#1709718

FromFlorian Fainelli <f.fainelli@gmail.com>
Date2017-08-11 17:10 +0200
Message-ID<udjJw-56j-15@gated-at.bofh.it>
In reply to#1709615
On August 11, 2017 6:25:26 AM PDT, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
>On Fri, Aug 11, 2017 at 04:22:11PM +0800, Chen-Yu Tsai wrote:
>> On Fri, Aug 11, 2017 at 4:19 PM, Corentin Labbe
>> <clabbe.montjoie@gmail.com> wrote:
>> > On Fri, Aug 11, 2017 at 04:11:13PM +0800, Chen-Yu Tsai wrote:
>> >> On Fri, Aug 11, 2017 at 4:05 PM, Corentin Labbe
>> >> <clabbe.montjoie@gmail.com> wrote:
>> >> > On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
>> >> >> Hi,
>> >> >>
>> >> >> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
>> >> >> <clabbe.montjoie@gmail.com> wrote:
>> >> >> > This patch add the new phy-is-integrated property to the
>internal PHY
>> >> >> > node.
>> >> >> >
>> >> >> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
>> >> >> > ---
>> >> >> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
>> >> >> >  1 file changed, 1 insertion(+)
>> >> >> >
>> >> >> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> >> >> > index 4b599b5d26f6..54fc24e4c569 100644
>> >> >> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> >> >> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> >> >> > @@ -425,6 +425,7 @@
>> >> >> >                                         reg = <1>;
>> >> >> >                                         clocks = <&ccu
>CLK_BUS_EPHY>;
>> >> >> >                                         resets = <&ccu
>RST_BUS_EPHY>;
>> >> >> > +                                       phy-is-integrated;
>> >> >>
>> >> >> You also need to "delete" this property at the board level for
>> >> >> any board that has the external PHY at address <1>. Otherwise
>> >> >> they will stop working. This is due to the internal and
>external
>> >> >> PHYs having the same path and node name in the device tree, so
>> >> >> they are effectively the same node.
>> >> >>
>> >> >> ChenYu
>> >> >>
>> >> >
>> >> > They have not the same name, ext_rgmii_phy vs int_mii_phy.
>> >>
>> >> That is just the label. The label plays no part in device tree
>merging. The path
>> >>
>> >>     /soc/ethernet@1c30000/mdio/ethernet-phy@1
>> >>
>> >> is the same. You can look under
>> >>
>> >>     /proc/device-tree/soc/ethernet@1c30000/mdio
>> >>
>> >> on the OrangePI Plus 2E or any other H3 board that uses an
>> >> external PHY at address 1.
>> >>
>> >> ChenYu
>> >
>> > Since we get the phy node by phy-handle and not by path, I think
>all should be good.
>> 
>> You are not getting me. The fact that the two seemingly separate
>> nodes are merged together means, whatever properties you put in
>> the internal PHY node, also affect the external PHY node. Once
>> compiled, they are the SAME node.
>
>Hello Rob, florian, mark
>
>Adding a delete property on all external ethernet-phy@1 is a bit
>overkill, and I dont like the idea that nodes are merged.

This is not exactly up to you that's just how DTC works.

>What do you think about other possible solutions:
>- Using integrated-phy@1 for the integrated PHY node name

That might be okay although you are using now a seemingly non-standard unit name.

>- Using a fake address like 31 (see patch below)

You could also drop the address part in the unit name although we'd probably get a DTC warning for that.

I suspect both of your solutions and what I mentioned above will be producing DTC warnings to some extent... Rob what do you think?


>
>If you have any other solution...
>
>Regards
>
>From fe39183946f7f4a6e21bce38fd8e4c1413012d68 Mon Sep 17 00:00:00 2001
>From: Corentin Labbe <clabbe.montjoie@gmail.com>
>Date: Fri, 11 Aug 2017 14:49:54 +0200
>Subject: [PATCH] ARM: sun8i: sunxi-h3-h5: Prevent merge of external and
> integrated PHY
>
>Actually, some external and integrated PHY are merged due to same
>dtnode
>name "ethernet-phy@1".
>
>This is problematic when we will want to use the phy-is-integrated
>property. (Need to delete it on all external PHY node)
>
>An easy solution is to set integrated PHY nodeaddresss at a fake one
>that would never be used.
>Since board makers currently only provides PHY at addresses 1 and 7,
>we will use 31.
>
>Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
>---
> arch/arm/boot/dts/sunxi-h3-h5.dtsi | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
>diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>index 54fc24e4c569..2110b0069e33 100644
>--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>@@ -420,7 +420,15 @@
> 			mdio: mdio {
> 				#address-cells = <1>;
> 				#size-cells = <0>;
>-				int_mii_phy: ethernet-phy@1 {
>+				/*
>+				 * Using 31 permits to make a separation between
>+				 * this integrated PHY and external ones.
>+				 * Without it, external "ethernet-phy@1" will be
>+				 * merged with it (due to same dtnode name).
>+				 * Board makers currently only provides PHY at
>+				 * addresses 1 and 7.
>+				 */
>+				int_mii_phy: ethernet-phy@31 {
> 					compatible = "ethernet-phy-ieee802.3-c22";
> 					reg = <1>;
> 					clocks = <&ccu CLK_BUS_EPHY>;


-- 
Florian

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#1709367 — Re: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY

FromChen-Yu Tsai <wens@csie.org>
Date2017-08-11 10:20 +0200
SubjectRe: [PATCH 2/3] ARM: sun8i: sunxi-h3-h5: add phy-is-integrated property to internal PHY
Message-ID<uddkJ-17M-9@gated-at.bofh.it>
In reply to#1709358
On Fri, Aug 11, 2017 at 4:05 PM, Corentin Labbe
<clabbe.montjoie@gmail.com> wrote:
> On Fri, Aug 11, 2017 at 10:42:51AM +0800, Chen-Yu Tsai wrote:
>> Hi,
>>
>> On Thu, Aug 10, 2017 at 4:51 PM, Corentin Labbe
>> <clabbe.montjoie@gmail.com> wrote:
>> > This patch add the new phy-is-integrated property to the internal PHY
>> > node.
>> >
>> > Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
>> > ---
>> >  arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 +
>> >  1 file changed, 1 insertion(+)
>> >
>> > diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> > index 4b599b5d26f6..54fc24e4c569 100644
>> > --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> > +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
>> > @@ -425,6 +425,7 @@
>> >                                         reg = <1>;
>> >                                         clocks = <&ccu CLK_BUS_EPHY>;
>> >                                         resets = <&ccu RST_BUS_EPHY>;
>> > +                                       phy-is-integrated;
>>
>> You also need to "delete" this property at the board level for
>> any board that has the external PHY at address <1>. Otherwise
>> they will stop working. This is due to the internal and external
>> PHYs having the same path and node name in the device tree, so
>> they are effectively the same node.
>>
>> ChenYu
>>
>
> They have not the same name, ext_rgmii_phy vs int_mii_phy.

That is just the label. The label plays no part in device tree merging. The path

    /soc/ethernet@1c30000/mdio/ethernet-phy@1

is the same. You can look under

    /proc/device-tree/soc/ethernet@1c30000/mdio

on the OrangePI Plus 2E or any other H3 board that uses an
external PHY at address 1.

ChenYu

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