2022-09-12 19:29:09

by Horatiu Vultur

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Subject: [PATCH] ARM: dts: lan966x: Fix the interrupt number for internal PHYs

According to the datasheet the interrupts for internal PHYs are
80 and 81.

Fixes: 6ad69e07def67c ("ARM: dts: lan966x: add MIIM nodes")
Signed-off-by: Horatiu Vultur <[email protected]>
---
arch/arm/boot/dts/lan966x.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/lan966x.dtsi b/arch/arm/boot/dts/lan966x.dtsi
index bcb130a2471d..23665a042990 100644
--- a/arch/arm/boot/dts/lan966x.dtsi
+++ b/arch/arm/boot/dts/lan966x.dtsi
@@ -547,13 +547,13 @@ mdio1: mdio@e200413c {

phy0: ethernet-phy@1 {
reg = <1>;
- interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};

phy1: ethernet-phy@2 {
reg = <2>;
- interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+ interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
};
--
2.33.0


2022-09-13 07:40:28

by Michael Walle

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Subject: Re: [PATCH] ARM: dts: lan966x: Fix the interrupt number for internal PHYs

Am 2022-09-13 09:18, schrieb [email protected]:
> On 12.09.2022 22:26, Horatiu Vultur wrote:
>> According to the datasheet the interrupts for internal PHYs are
>> 80 and 81.
>>
>> Fixes: 6ad69e07def67c ("ARM: dts: lan966x: add MIIM nodes")
>> Signed-off-by: Horatiu Vultur <[email protected]>
>
> Applied to at91-fixes, thanks!

I'm not sure the fix is correct, though.

-michael

2022-09-13 08:01:43

by Claudiu Beznea

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Subject: Re: [PATCH] ARM: dts: lan966x: Fix the interrupt number for internal PHYs

On 12.09.2022 22:26, Horatiu Vultur wrote:
> According to the datasheet the interrupts for internal PHYs are
> 80 and 81.
>
> Fixes: 6ad69e07def67c ("ARM: dts: lan966x: add MIIM nodes")
> Signed-off-by: Horatiu Vultur <[email protected]>

Applied to at91-fixes, thanks!

> ---
> arch/arm/boot/dts/lan966x.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/lan966x.dtsi b/arch/arm/boot/dts/lan966x.dtsi
> index bcb130a2471d..23665a042990 100644
> --- a/arch/arm/boot/dts/lan966x.dtsi
> +++ b/arch/arm/boot/dts/lan966x.dtsi
> @@ -547,13 +547,13 @@ mdio1: mdio@e200413c {
>
> phy0: ethernet-phy@1 {
> reg = <1>;
> - interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> + interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> status = "disabled";
> };
>
> phy1: ethernet-phy@2 {
> reg = <2>;
> - interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
> + interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> status = "disabled";
> };
> };

2022-09-13 08:20:54

by Michael Walle

[permalink] [raw]
Subject: Re: [PATCH] ARM: dts: lan966x: Fix the interrupt number for internal PHYs

Hi Horatiu,

Am 2022-09-12 21:26, schrieb Horatiu Vultur:
> According to the datasheet the interrupts for internal PHYs are
> 80 and 81.

Can you point me to that documentation?

Accoring to Table 3-155: Shared Peripheral Interrupts
There are ID47 and ID48 listed as "MIIM controller 0 interrupt".
Whatever that is, because the internal PHYs are on MIIM
controller 1.

But 80 and 81 would be ID48 and ID49. Did you test the
interrupts?

-michael

> Fixes: 6ad69e07def67c ("ARM: dts: lan966x: add MIIM nodes")
> Signed-off-by: Horatiu Vultur <[email protected]>
> ---
> arch/arm/boot/dts/lan966x.dtsi | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/lan966x.dtsi
> b/arch/arm/boot/dts/lan966x.dtsi
> index bcb130a2471d..23665a042990 100644
> --- a/arch/arm/boot/dts/lan966x.dtsi
> +++ b/arch/arm/boot/dts/lan966x.dtsi
> @@ -547,13 +547,13 @@ mdio1: mdio@e200413c {
>
> phy0: ethernet-phy@1 {
> reg = <1>;
> - interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> + interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> status = "disabled";
> };
>
> phy1: ethernet-phy@2 {
> reg = <2>;
> - interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
> + interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> status = "disabled";
> };
> };

2022-09-13 08:24:18

by Michael Walle

[permalink] [raw]
Subject: Re: [PATCH] ARM: dts: lan966x: Fix the interrupt number for internal PHYs

Am 2022-09-13 09:57, schrieb Horatiu Vultur:
>> Accoring to Table 3-155: Shared Peripheral Interrupts
>> There are ID47 and ID48 listed as "MIIM controller 0 interrupt".
>> Whatever that is, because the internal PHYs are on MIIM
>> controller 1.
>>
>> But 80 and 81 would be ID48 and ID49. Did you test the
>> interrupts?
>
> Looking the same table (3-155) in the documentation that I have these
> interrupts correspond to ID112 and ID113 (Embedded CuPHY port 0/1
> interrupt).
> And because these are shared peripheral interrupts, it is required to
> substract 32. Therefore I got the numbers 80 and 81.

Ahh, I need more coffee :) Yes you are right.

> As the internal PHYs don't have yet interrupt support, I have sent a
> patch here [1] and I have tested it with this.
>
> [1] https://www.spinics.net/lists/kernel/msg4511731.html

Thanks for the pointer!

-michael

2022-09-13 08:59:40

by Horatiu Vultur

[permalink] [raw]
Subject: Re: [PATCH] ARM: dts: lan966x: Fix the interrupt number for internal PHYs

The 09/13/2022 09:18, Michael Walle wrote:
>
> Hi Horatiu,

Hi Walle,

>
> Am 2022-09-12 21:26, schrieb Horatiu Vultur:
> > According to the datasheet the interrupts for internal PHYs are
> > 80 and 81.
>
> Can you point me to that documentation?

I have not found yet one on the microchip.com

>
> Accoring to Table 3-155: Shared Peripheral Interrupts
> There are ID47 and ID48 listed as "MIIM controller 0 interrupt".
> Whatever that is, because the internal PHYs are on MIIM
> controller 1.
>
> But 80 and 81 would be ID48 and ID49. Did you test the
> interrupts?

Looking the same table (3-155) in the documentation that I have these
interrupts correspond to ID112 and ID113 (Embedded CuPHY port 0/1 interrupt).
And because these are shared peripheral interrupts, it is required to
substract 32. Therefore I got the numbers 80 and 81.

As the internal PHYs don't have yet interrupt support, I have sent a
patch here [1] and I have tested it with this.

[1] https://www.spinics.net/lists/kernel/msg4511731.html

>
> -michael
>
> > Fixes: 6ad69e07def67c ("ARM: dts: lan966x: add MIIM nodes")
> > Signed-off-by: Horatiu Vultur <[email protected]>
> > ---
> > arch/arm/boot/dts/lan966x.dtsi | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm/boot/dts/lan966x.dtsi
> > b/arch/arm/boot/dts/lan966x.dtsi
> > index bcb130a2471d..23665a042990 100644
> > --- a/arch/arm/boot/dts/lan966x.dtsi
> > +++ b/arch/arm/boot/dts/lan966x.dtsi
> > @@ -547,13 +547,13 @@ mdio1: mdio@e200413c {
> >
> > phy0: ethernet-phy@1 {
> > reg = <1>;
> > - interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> > + interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> > status = "disabled";
> > };
> >
> > phy1: ethernet-phy@2 {
> > reg = <2>;
> > - interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
> > + interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
> > status = "disabled";
> > };
> > };

--
/Horatiu