[PATCH 1/4] dt-bindings: usb: Add Microchip LAN969x support

[PATCH 1/4] dt-bindings: usb: Add Microchip LAN969x support

[Robert Marko]

Microchip LAN969x has DWC3 compatible controller, though limited to 2.0(HS)
speed, so document it.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 .../bindings/usb/microchip,lan9691-dwc3.yaml  | 68 +++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml

diff --git a/Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml b/Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml
new file mode 100644
index 000000000000..7ffcbbd1e0f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/microchip,lan9691-dwc3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN969x SuperSpeed DWC3 USB SoC controller
+
+maintainers:
+  - Robert Marko <robert.marko@sartura.hr>
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - microchip,lan9691-dwc3
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - microchip,lan9691-dwc3
+      - const: snps,dwc3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Gated USB DRD clock
+      - description: Controller reference clock
+
+  clock-names:
+    items:
+      - const: bus_early
+      - const: ref
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+allOf:
+  - $ref: snps,dwc3.yaml#
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/microchip,lan969x.h>
+
+    usb@300000 {
+      compatible = "microchip,lan9691-dwc3", "snps,dwc3";
+      reg = <0x300000 0x80000>;
+      interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+      clocks = <&clks GCK_GATE_USB_DRD>,
+               <&clks GCK_ID_USB_REFCLK>;
+      clock-names = "bus_early", "ref";
+    };
-- 
2.52.0

[PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

[Robert Marko]

Microchip LAN969x is a series of multi-port, multi-gigabit switches based
on ARMv8 Cortex-A53 CPU.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/microchip,lan969x.yaml

diff --git a/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml b/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
new file mode 100644
index 000000000000..3fa1d4ed40d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/microchip,lan969x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN969x Boards
+
+maintainers:
+  - Robert Marko <robert.marko@sartura.hr>
+
+description: |+
+   The Microchip LAN969x SoC is a ARMv8-based used in a family of
+   multi-port, multi-gigabit switches.
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: The LAN969x EVB (EV23X71A) is a 24x 1G + 4x 10G
+          Ethernet development system board.
+        items:
+          - const: microchip,ev23x71a
+          - const: microchip,lan969x
+
+required:
+  - compatible
+
+additionalProperties: true
+
+...
-- 
2.52.0

Re: [PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1984 bytes --]

On Wed, Dec 03, 2025 at 01:21:30PM +0100, Robert Marko wrote:
> Microchip LAN969x is a series of multi-port, multi-gigabit switches based
> on ARMv8 Cortex-A53 CPU.
> 
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> ---
>  .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++

This should not be in a unique file, put it in with the other microchip
arm devices please. Also, the wildcard in the compatible is not
permitted, only way it'd make sense is if these are different binnings
of the same silicon. If that's the case, you need to explain why,
because compatibles are meant to be soc-specific.

pw-bot: changes-requested

>  1 file changed, 32 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
> 
> diff --git a/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml b/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
> new file mode 100644
> index 000000000000..3fa1d4ed40d1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
> @@ -0,0 +1,32 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/microchip,lan969x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip LAN969x Boards
> +
> +maintainers:
> +  - Robert Marko <robert.marko@sartura.hr>
> +
> +description: |+
> +   The Microchip LAN969x SoC is a ARMv8-based used in a family of
> +   multi-port, multi-gigabit switches.
> +
> +properties:
> +  $nodename:
> +    const: '/'
> +  compatible:
> +    oneOf:
> +      - description: The LAN969x EVB (EV23X71A) is a 24x 1G + 4x 10G
> +          Ethernet development system board.
> +        items:
> +          - const: microchip,ev23x71a
> +          - const: microchip,lan969x
> +
> +required:
> +  - compatible
> +
> +additionalProperties: true
> +
> +...
> -- 
> 2.52.0
> 

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

Re: [PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

[Robert Marko]

On Wed, Dec 3, 2025 at 8:19 PM Conor Dooley <conor@kernel.org> wrote:
>
> On Wed, Dec 03, 2025 at 01:21:30PM +0100, Robert Marko wrote:
> > Microchip LAN969x is a series of multi-port, multi-gigabit switches based
> > on ARMv8 Cortex-A53 CPU.
> >
> > Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> > ---
> >  .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++
>
> This should not be in a unique file, put it in with the other microchip
> arm devices please. Also, the wildcard in the compatible is not
> permitted, only way it'd make sense is if these are different binnings
> of the same silicon. If that's the case, you need to explain why,
> because compatibles are meant to be soc-specific.

Hi Conor,
The issue is that there is no unique place for Microchip SoC-s,
LAN966x series is in the AT91 bindings
while SparX-5 has its own bindings file.

What would you suggest in this case?

As for the wildcard, I understand, will get rid of it in v2.

Regards,
Robert

>
> pw-bot: changes-requested
>
> >  1 file changed, 32 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml b/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
> > new file mode 100644
> > index 000000000000..3fa1d4ed40d1
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/arm/microchip,lan969x.yaml
> > @@ -0,0 +1,32 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/arm/microchip,lan969x.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Microchip LAN969x Boards
> > +
> > +maintainers:
> > +  - Robert Marko <robert.marko@sartura.hr>
> > +
> > +description: |+
> > +   The Microchip LAN969x SoC is a ARMv8-based used in a family of
> > +   multi-port, multi-gigabit switches.
> > +
> > +properties:
> > +  $nodename:
> > +    const: '/'
> > +  compatible:
> > +    oneOf:
> > +      - description: The LAN969x EVB (EV23X71A) is a 24x 1G + 4x 10G
> > +          Ethernet development system board.
> > +        items:
> > +          - const: microchip,ev23x71a
> > +          - const: microchip,lan969x
> > +
> > +required:
> > +  - compatible
> > +
> > +additionalProperties: true
> > +
> > +...
> > --
> > 2.52.0
> >



-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura d.d.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr

Re: [PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1235 bytes --]

On Mon, Dec 08, 2025 at 11:30:28AM +0100, Robert Marko wrote:
> On Wed, Dec 3, 2025 at 8:19 PM Conor Dooley <conor@kernel.org> wrote:
> >
> > On Wed, Dec 03, 2025 at 01:21:30PM +0100, Robert Marko wrote:
> > > Microchip LAN969x is a series of multi-port, multi-gigabit switches based
> > > on ARMv8 Cortex-A53 CPU.
> > >
> > > Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> > > ---
> > >  .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++
> >
> > This should not be in a unique file, put it in with the other microchip
> > arm devices please. Also, the wildcard in the compatible is not
> > permitted, only way it'd make sense is if these are different binnings
> > of the same silicon. If that's the case, you need to explain why,
> > because compatibles are meant to be soc-specific.
> 
> Hi Conor,
> The issue is that there is no unique place for Microchip SoC-s,
> LAN966x series is in the AT91 bindings
> while SparX-5 has its own bindings file.
> 
> What would you suggest in this case?

Ideally, arm/atmel-at91.yaml and arm/microchip,sparx5.yaml would just
become arm/microchip.yaml. The axi@600000000 thing in the sparx5 file
looks pointless and can be deleted IMO.


[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

Re: [PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

[Robert Marko]

On Mon, Dec 8, 2025 at 6:10 PM Conor Dooley <conor@kernel.org> wrote:
>
> On Mon, Dec 08, 2025 at 11:30:28AM +0100, Robert Marko wrote:
> > On Wed, Dec 3, 2025 at 8:19 PM Conor Dooley <conor@kernel.org> wrote:
> > >
> > > On Wed, Dec 03, 2025 at 01:21:30PM +0100, Robert Marko wrote:
> > > > Microchip LAN969x is a series of multi-port, multi-gigabit switches based
> > > > on ARMv8 Cortex-A53 CPU.
> > > >
> > > > Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> > > > ---
> > > >  .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++
> > >
> > > This should not be in a unique file, put it in with the other microchip
> > > arm devices please. Also, the wildcard in the compatible is not
> > > permitted, only way it'd make sense is if these are different binnings
> > > of the same silicon. If that's the case, you need to explain why,
> > > because compatibles are meant to be soc-specific.
> >
> > Hi Conor,
> > The issue is that there is no unique place for Microchip SoC-s,
> > LAN966x series is in the AT91 bindings
> > while SparX-5 has its own bindings file.
> >
> > What would you suggest in this case?
>
> Ideally, arm/atmel-at91.yaml and arm/microchip,sparx5.yaml would just
> become arm/microchip.yaml. The axi@600000000 thing in the sparx5 file
> looks pointless and can be deleted IMO.

Ok, I merged them all in one generic microchip.yaml binding, but I noticed that
arm/atmel-at91.yaml is licensed under GPL-2.0 while arm/microchip,sparx5.yaml
is dual-licensed as its preferred for bindings.

Is that going to be an issue?

Regards,
Robert
>


-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura d.d.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr

Re: [PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1962 bytes --]

On Fri, Dec 12, 2025 at 11:09:01AM +0100, Robert Marko wrote:
> On Mon, Dec 8, 2025 at 6:10 PM Conor Dooley <conor@kernel.org> wrote:
> >
> > On Mon, Dec 08, 2025 at 11:30:28AM +0100, Robert Marko wrote:
> > > On Wed, Dec 3, 2025 at 8:19 PM Conor Dooley <conor@kernel.org> wrote:
> > > >
> > > > On Wed, Dec 03, 2025 at 01:21:30PM +0100, Robert Marko wrote:
> > > > > Microchip LAN969x is a series of multi-port, multi-gigabit switches based
> > > > > on ARMv8 Cortex-A53 CPU.
> > > > >
> > > > > Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> > > > > ---
> > > > >  .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++
> > > >
> > > > This should not be in a unique file, put it in with the other microchip
> > > > arm devices please. Also, the wildcard in the compatible is not
> > > > permitted, only way it'd make sense is if these are different binnings
> > > > of the same silicon. If that's the case, you need to explain why,
> > > > because compatibles are meant to be soc-specific.
> > >
> > > Hi Conor,
> > > The issue is that there is no unique place for Microchip SoC-s,
> > > LAN966x series is in the AT91 bindings
> > > while SparX-5 has its own bindings file.
> > >
> > > What would you suggest in this case?
> >
> > Ideally, arm/atmel-at91.yaml and arm/microchip,sparx5.yaml would just
> > become arm/microchip.yaml. The axi@600000000 thing in the sparx5 file
> > looks pointless and can be deleted IMO.
> 
> Ok, I merged them all in one generic microchip.yaml binding, but I noticed that
> arm/atmel-at91.yaml is licensed under GPL-2.0 while arm/microchip,sparx5.yaml
> is dual-licensed as its preferred for bindings.
> 
> Is that going to be an issue?

I *think* everyone that contributed, other than maybe Wolfram has
already okayed any binding going to dual license. Just do it as a
standalone commit in the patchset and make sure you CC Michael Walle
and Wolfram Sang.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

[PATCH 3/4] include: dt-bindings: add LAN969x clock bindings

[Robert Marko]

Add the required LAN969x clock bindings.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 include/dt-bindings/clock/microchip,lan969x.h | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 include/dt-bindings/clock/microchip,lan969x.h

diff --git a/include/dt-bindings/clock/microchip,lan969x.h b/include/dt-bindings/clock/microchip,lan969x.h
new file mode 100644
index 000000000000..5a9c8bf7824a
--- /dev/null
+++ b/include/dt-bindings/clock/microchip,lan969x.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+
+#ifndef _DT_BINDINGS_CLK_LAN969X_H
+#define _DT_BINDINGS_CLK_LAN969X_H
+
+#define GCK_ID_QSPI0		0
+#define GCK_ID_QSPI2		1
+#define GCK_ID_SDMMC0		2
+#define GCK_ID_SDMMC1		3
+#define GCK_ID_MCAN0		4
+#define GCK_ID_MCAN1		5
+#define GCK_ID_FLEXCOM0		6
+#define GCK_ID_FLEXCOM1		7
+#define GCK_ID_FLEXCOM2		8
+#define GCK_ID_FLEXCOM3		9
+#define GCK_ID_TIMER		10
+#define GCK_ID_USB_REFCLK	11
+
+/* Gate clocks */
+#define GCK_GATE_USB_DRD	12
+#define GCK_GATE_MCRAMC		13
+#define GCK_GATE_HMATRIX	14
+
+#endif
-- 
2.52.0

Re: [PATCH 3/4] include: dt-bindings: add LAN969x clock bindings

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1448 bytes --]

On Wed, Dec 03, 2025 at 01:21:31PM +0100, Robert Marko wrote:
> Add the required LAN969x clock bindings.
> 
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> ---
>  include/dt-bindings/clock/microchip,lan969x.h | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 include/dt-bindings/clock/microchip,lan969x.h

Same thing here, this should be specific. Probably 9691, because that's
what you're using the compatible of in your dts.

pw-bot: changes-requested

> 
> diff --git a/include/dt-bindings/clock/microchip,lan969x.h b/include/dt-bindings/clock/microchip,lan969x.h
> new file mode 100644
> index 000000000000..5a9c8bf7824a
> --- /dev/null
> +++ b/include/dt-bindings/clock/microchip,lan969x.h
> @@ -0,0 +1,24 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +
> +#ifndef _DT_BINDINGS_CLK_LAN969X_H
> +#define _DT_BINDINGS_CLK_LAN969X_H
> +
> +#define GCK_ID_QSPI0		0
> +#define GCK_ID_QSPI2		1
> +#define GCK_ID_SDMMC0		2
> +#define GCK_ID_SDMMC1		3
> +#define GCK_ID_MCAN0		4
> +#define GCK_ID_MCAN1		5
> +#define GCK_ID_FLEXCOM0		6
> +#define GCK_ID_FLEXCOM1		7
> +#define GCK_ID_FLEXCOM2		8
> +#define GCK_ID_FLEXCOM3		9
> +#define GCK_ID_TIMER		10
> +#define GCK_ID_USB_REFCLK	11
> +
> +/* Gate clocks */
> +#define GCK_GATE_USB_DRD	12
> +#define GCK_GATE_MCRAMC		13
> +#define GCK_GATE_HMATRIX	14
> +
> +#endif
> -- 
> 2.52.0
> 

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

[PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Robert Marko]

Add support for Microchip LAN969x switch SoC, including the EV23X71A
EVB board.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 arch/arm64/boot/dts/microchip/Makefile        |   2 +
 .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++
 arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++
 3 files changed, 1245 insertions(+)
 create mode 100644 arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
 create mode 100644 arch/arm64/boot/dts/microchip/lan969x.dtsi

diff --git a/arch/arm64/boot/dts/microchip/Makefile b/arch/arm64/boot/dts/microchip/Makefile
index c6e0313eea0f..d02ac50aae79 100644
--- a/arch/arm64/boot/dts/microchip/Makefile
+++ b/arch/arm64/boot/dts/microchip/Makefile
@@ -2,3 +2,5 @@
 dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb125.dtb
 dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb134.dtb sparx5_pcb134_emmc.dtb
 dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb135.dtb sparx5_pcb135_emmc.dtb
+
+dtb-$(CONFIG_ARCH_LAN969X) += lan9696-ev23x71a.dtb
\ No newline at end of file
diff --git a/arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts b/arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
new file mode 100644
index 000000000000..6bbddad2a0b9
--- /dev/null
+++ b/arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
@@ -0,0 +1,761 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright (c) 2025 Microchip Technology Inc. and its subsidiaries.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include "lan969x.dtsi"
+
+/ {
+	model = "Microchip EV23X71A";
+	compatible = "microchip,ev23x71a", "microchip,lan969x";
+
+	aliases {
+		serial0 = &usart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio 60 GPIO_ACTIVE_LOW>;
+		open-source;
+		priority = <200>;
+	};
+
+	i2c-mux {
+		compatible = "i2c-mux-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		i2c-parent = <&i2c3>;
+
+		mux-gpios = <&sgpio_out 0 1 GPIO_ACTIVE_HIGH
+			     &sgpio_out 0 2 GPIO_ACTIVE_HIGH
+			     &sgpio_out 0 3 GPIO_ACTIVE_HIGH>;
+		idle-state = <0x8>;
+
+		i2c_sfp0: i2c@0 {
+			reg = <0x0>;
+		};
+
+		i2c_sfp1: i2c@1 {
+			reg = <0x1>;
+		};
+
+		i2c_sfp2: i2c@2 {
+			reg = <0x2>;
+		};
+
+		i2c_sfp3: i2c@3 {
+			reg = <0x3>;
+		};
+
+		i2c_poe: i2c@7 {
+			reg = <0x7>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-status {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio 61 GPIO_ACTIVE_LOW>;
+		};
+
+		led-sfp1-green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <0>;
+			gpios = <&sgpio_out 6 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp1-yellow {
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <0>;
+			gpios = <&sgpio_out 6 1 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp2-green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <1>;
+			gpios = <&sgpio_out 7 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp2-yellow {
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <1>;
+			gpios = <&sgpio_out 7 1 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp3-green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <2>;
+			gpios = <&sgpio_out 8 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp3-yellow {
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <2>;
+			gpios = <&sgpio_out 8 1 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp4-green {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <3>;
+			gpios = <&sgpio_out 9 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led-sfp4-yellow {
+			color = <LED_COLOR_ID_YELLOW>;
+			function = LED_FUNCTION_LAN;
+			function-enumerator = <3>;
+			gpios = <&sgpio_out 9 1 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	mux-controller {
+		compatible = "gpio-mux";
+		#mux-control-cells = <0>;
+
+		mux-gpios = <&sgpio_out 1 2 GPIO_ACTIVE_LOW>,
+			    <&sgpio_out 1 3 GPIO_ACTIVE_LOW>;
+	};
+
+	sfp0: sfp0 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c_sfp0>;
+		tx-disable-gpios = <&sgpio_out 6 2 GPIO_ACTIVE_HIGH>;
+		los-gpios = <&sgpio_in 6 0 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&sgpio_in 6 1 GPIO_ACTIVE_LOW>;
+		tx-fault-gpios = <&sgpio_in 6 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	sfp1: sfp1 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c_sfp1>;
+		tx-disable-gpios = <&sgpio_out 7 2 GPIO_ACTIVE_HIGH>;
+		los-gpios = <&sgpio_in 7 0 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&sgpio_in 7 1 GPIO_ACTIVE_LOW>;
+		tx-fault-gpios = <&sgpio_in 7 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	sfp2: sfp2 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c_sfp2>;
+		tx-disable-gpios = <&sgpio_out 8 2 GPIO_ACTIVE_HIGH>;
+		los-gpios = <&sgpio_in 8 0 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&sgpio_in 8 1 GPIO_ACTIVE_LOW>;
+		tx-fault-gpios = <&sgpio_in 8 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	sfp3: sfp3 {
+		compatible = "sff,sfp";
+		i2c-bus = <&i2c_sfp3>;
+		tx-disable-gpios = <&sgpio_out 9 2 GPIO_ACTIVE_HIGH>;
+		los-gpios = <&sgpio_in 9 0 GPIO_ACTIVE_HIGH>;
+		mod-def0-gpios = <&sgpio_in 9 1 GPIO_ACTIVE_LOW>;
+		tx-fault-gpios = <&sgpio_in 9 2 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&flx0 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+	status = "okay";
+};
+
+&usart0 {
+	pinctrl-0 = <&fc0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&flx2 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
+	status = "okay";
+};
+
+&spi2 {
+	pinctrl-0 = <&fc2_pins>;
+	pinctrl-names = "default";
+	cs-gpios = <&gpio 63 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
+
+&flx3 {
+	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+	status = "okay";
+};
+
+&i2c3 {
+	pinctrl-0 = <&fc3_pins>;
+	pinctrl-names = "default";
+	i2c-analog-filter;
+	i2c-digital-filter;
+	i2c-digital-filter-width-ns = <35>;
+	i2c-sda-hold-time-ns = <1500>;
+	status = "okay";
+};
+
+&gpio {
+	emmc_sd_pins: emmc-sd-pins {
+		/* eMMC_SD - CMD, CLK, D0, D1, D2, D3, D4, D5, D6, D7, RSTN */
+		pins = "GPIO_14", "GPIO_15", "GPIO_16", "GPIO_17",
+		       "GPIO_18", "GPIO_19", "GPIO_20", "GPIO_21",
+		       "GPIO_22", "GPIO_23", "GPIO_24";
+		function = "emmc_sd";
+	};
+
+	fan_pins: fan-pins {
+		pins = "GPIO_25", "GPIO_26";
+		function = "fan";
+	};
+
+	fc0_pins: fc0-pins {
+		pins = "GPIO_3", "GPIO_4";
+		function = "fc";
+	};
+
+	fc2_pins: fc2-pins {
+		pins = "GPIO_64", "GPIO_65", "GPIO_66";
+		function = "fc";
+	};
+
+	fc3_pins: fc3-pins {
+		pins = "GPIO_55", "GPIO_56";
+		function = "fc";
+	};
+
+	mdio_pins: mdio-pins {
+		pins = "GPIO_9", "GPIO_10";
+		function = "miim";
+	};
+
+	mdio_irq_pins: mdio-irq-pins {
+		pins = "GPIO_11";
+		function = "miim_irq";
+	};
+
+	sgpio_pins: sgpio-pins {
+		/* SCK, D0, D1, LD */
+		pins = "GPIO_5", "GPIO_6", "GPIO_7", "GPIO_8";
+		function = "sgpio_a";
+	};
+
+	usb_ulpi_pins: usb-ulpi-pins {
+		pins = "GPIO_30", "GPIO_31", "GPIO_32", "GPIO_33",
+		"GPIO_34", "GPIO_35", "GPIO_36", "GPIO_37",
+		"GPIO_38", "GPIO_39", "GPIO_40", "GPIO_41";
+		function = "usb_ulpi";
+	};
+
+	usb_rst_pins: usb-rst-pins {
+		pins = "GPIO_12";
+		function = "usb2phy_rst";
+	};
+
+	usb_over_pins: usb-over-pins {
+		pins = "GPIO_13";
+		function = "usb_over_detect";
+	};
+
+	usb_power_pins: usb-power-pins {
+		pins = "GPIO_1";
+		function = "usb_power";
+	};
+
+	ptp_out_pins: ptp-out-pins {
+		pins = "GPIO_58";
+		function = "ptpsync_4";
+	};
+
+	ptp_ext_pins: ptp-ext-pins {
+		pins = "GPIO_59";
+		function = "ptpsync_5";
+	};
+};
+
+&tmon {
+	pinctrl-0 = <&fan_pins>;
+	pinctrl-names = "default";
+};
+
+&mdio0 {
+	pinctrl-0 = <&mdio_pins>, <&mdio_irq_pins>;
+	pinctrl-names = "default";
+	reset-gpios = <&gpio 62 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	phy3: phy@3 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <3>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy4: phy@4 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <4>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy5: phy@5 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <5>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy6: phy@6 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <6>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy7: phy@7 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <7>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy8: phy@8 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <8>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy9: phy@9 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <9>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy10: phy@10 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <10>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy11: phy@11 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <11>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy12: phy@12 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <12>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy13: phy@13 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <13>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy14: phy@14 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <14>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy15: phy@15 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <15>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy16: phy@16 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <16>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy17: phy@17 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <17>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy18: phy@18 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <18>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy19: phy@19 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <19>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy20: phy@20 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <20>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy21: phy@21 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <21>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy22: phy@22 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <22>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy23: phy@23 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <23>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy24: phy@24 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <24>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy25: phy@25 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <25>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy26: phy@26 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <26>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+
+	phy27: phy@27 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <27>;
+		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio>;
+	};
+};
+
+&serdes {
+	status = "okay";
+};
+
+&sgpio {
+	pinctrl-0 = <&sgpio_pins>;
+	pinctrl-names = "default";
+
+	microchip,sgpio-port-ranges = <0 1>, <6 9>;
+	status = "okay";
+
+	gpio@0 {
+		ngpios = <128>;
+	};
+	gpio@1 {
+		ngpios = <128>;
+	};
+};
+
+&switch {
+	pinctrl-0 = <&ptp_out_pins>, <&ptp_ext_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+	ethernet-ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port0: port@0 {
+			reg = <0>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy4>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 0>;
+		};
+
+		port1: port@1 {
+			reg = <1>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy5>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 0>;
+		};
+
+		port2: port@2 {
+			reg = <2>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy6>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 0>;
+		};
+
+		port3: port@3 {
+			reg = <3>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy7>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 0>;
+		};
+
+		port4: port@4 {
+			reg = <4>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy8>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 1>;
+		};
+
+		port5: port@5 {
+			reg = <5>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy9>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 1>;
+		};
+
+		port6: port@6 {
+			reg = <6>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy10>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 1>;
+		};
+
+		port7: port@7 {
+			reg = <7>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy11>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 1>;
+		};
+
+		port8: port@8 {
+			reg = <8>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy12>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 2>;
+		};
+
+		port9: port@9 {
+			reg = <9>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy13>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 2>;
+		};
+
+		port10: port@10 {
+			reg = <10>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy14>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 2>;
+		};
+
+		port11: port@11 {
+			reg = <11>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy15>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 2>;
+		};
+
+		port12: port@12 {
+			reg = <12>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy16>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 3>;
+		};
+
+		port13: port@13 {
+			reg = <13>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy17>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 3>;
+		};
+
+		port14: port@14 {
+			reg = <14>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy18>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 3>;
+		};
+
+		port15: port@15 {
+			reg = <15>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy19>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 3>;
+		};
+
+		port16: port@16 {
+			reg = <16>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy20>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 4>;
+		};
+
+		port17: port@17 {
+			reg = <17>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy21>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 4>;
+		};
+
+		port18: port@18 {
+			reg = <18>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy22>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 4>;
+		};
+
+		port19: port@19 {
+			reg = <19>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy23>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 4>;
+		};
+
+		port20: port@20 {
+			reg = <20>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy24>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 5>;
+		};
+
+		port21: port@21 {
+			reg = <21>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy25>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 5>;
+		};
+
+		port22: port@22 {
+			reg = <22>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy26>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 5>;
+		};
+
+		port23: port@23 {
+			reg = <23>;
+			microchip,bandwidth = <1000>;
+			phy-handle = <&phy27>;
+			phy-mode = "qsgmii";
+			phys = <&serdes 5>;
+		};
+
+		port24: port@24 {
+			reg = <24>;
+			microchip,bandwidth = <10000>;
+			phys = <&serdes 6>;
+			phy-mode = "10gbase-r";
+			sfp = <&sfp0>;
+			microchip,sd-sgpio = <24>;
+			managed = "in-band-status";
+		};
+
+		port25: port@25 {
+			reg = <25>;
+			microchip,bandwidth = <10000>;
+			phys = <&serdes 7>;
+			phy-mode = "10gbase-r";
+			sfp = <&sfp1>;
+			microchip,sd-sgpio = <28>;
+			managed = "in-band-status";
+		};
+
+		port26: port@26 {
+			reg = <26>;
+			microchip,bandwidth = <10000>;
+			phys = <&serdes 8>;
+			phy-mode = "10gbase-r";
+			sfp = <&sfp2>;
+			microchip,sd-sgpio = <32>;
+			managed = "in-band-status";
+		};
+
+		port27: port@27 {
+			reg = <27>;
+			microchip,bandwidth = <10000>;
+			phys = <&serdes 9>;
+			phy-mode = "10gbase-r";
+			sfp = <&sfp3>;
+			microchip,sd-sgpio = <36>;
+			managed = "in-band-status";
+		};
+
+		port29: port@29 {
+			reg = <29>;
+			microchip,bandwidth = <1000>;
+			phys = <&serdes 11>;
+			phy-handle = <&phy3>;
+			phy-mode = "rgmii";
+			rx-internal-delay-ps = <1000>;
+			tx-internal-delay-ps = <1000>;
+		};
+	};
+};
+
+&usb {
+	status = "okay";
+	pinctrl-0 = <&usb_ulpi_pins>, <&usb_rst_pins>, <&usb_over_pins>, <&usb_power_pins>;
+	pinctrl-names = "default";
+};
diff --git a/arch/arm64/boot/dts/microchip/lan969x.dtsi b/arch/arm64/boot/dts/microchip/lan969x.dtsi
new file mode 100644
index 000000000000..39ea1999c801
--- /dev/null
+++ b/arch/arm64/boot/dts/microchip/lan969x.dtsi
@@ -0,0 +1,482 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright (c) 2025 Microchip Technology Inc. and its subsidiaries.
+ */
+
+#include <dt-bindings/clock/microchip,lan969x.h>
+#include <dt-bindings/dma/at91.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/mfd/at91-usart.h>
+#include <dt-bindings/mfd/atmel-flexcom.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	model = "Microchip LAN969x";
+	compatible = "microchip,lan969x";
+	interrupt-parent = <&gic>;
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	clocks {
+		fx100_clk: fx100-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <320000000>;
+		};
+
+		cpu_clk: cpu-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <1000000000>;
+		};
+
+		ddr_clk: ddr-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <600000000>;
+		};
+
+		fabric_clk: fabric-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <250000000>;
+		};
+	};
+
+	cpus {
+		#address-cells = <2>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			compatible = "arm,cortex-a53";
+			device_type = "cpu";
+			reg = <0x0 0x0>;
+			next-level-cache = <&l2_0>;
+		};
+
+		l2_0: l2-cache {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+		};
+	};
+
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>, /* Secure Phys IRQ */
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>, /* Non-secure Phys IRQ */
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>, /* Virt IRQ */
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>; /* Hyp IRQ */
+	};
+
+	axi: axi {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		usb: usb@300000 {
+			compatible = "microchip,lan9691-dwc3", "snps,dwc3";
+			reg = <0x300000 0x80000>;
+			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clks GCK_GATE_USB_DRD>,
+				 <&clks GCK_ID_USB_REFCLK>;
+			clock-names = "bus_early", "ref";
+			assigned-clocks = <&clks GCK_ID_USB_REFCLK>;
+			assigned-clock-rates = <60000000>;
+			maximum-speed = "high-speed";
+			dr_mode = "host";
+			status = "disabled";
+		};
+
+		flx0: flexcom@e0040000 {
+			compatible = "atmel,sama5d2-flexcom";
+			reg = <0xe0040000 0x100>;
+			clocks = <&clks GCK_ID_FLEXCOM0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0xe0040000 0x800>;
+			status = "disabled";
+
+			usart0: serial@200 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+				       <&dma AT91_XDMAC_DT_PERID(2)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "usart";
+				atmel,fifo-size = <32>;
+				status = "disabled";
+			};
+
+			spi0: spi@400 {
+				compatible = "atmel,at91rm9200-spi";
+				reg = <0x400 0x200>;
+				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+				       <&dma AT91_XDMAC_DT_PERID(2)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "spi_clk";
+				atmel,fifo-size = <32>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+			i2c0: i2c@600 {
+				compatible = "microchip,sam9x60-i2c";
+				reg = <0x600 0x200>;
+				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+				       <&dma AT91_XDMAC_DT_PERID(2)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+		};
+
+		flx1: flexcom@e0044000 {
+			compatible = "atmel,sama5d2-flexcom";
+			reg = <0xe0044000 0x100>;
+			clocks = <&clks GCK_ID_FLEXCOM1>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0xe0044000 0x800>;
+			status = "disabled";
+
+			usart1: serial@200 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+				       <&dma AT91_XDMAC_DT_PERID(2)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "usart";
+				atmel,fifo-size = <32>;
+				status = "disabled";
+			};
+
+			spi1: spi@400 {
+				compatible = "atmel,at91rm9200-spi";
+				reg = <0x400 0x200>;
+				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+				       <&dma AT91_XDMAC_DT_PERID(2)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "spi_clk";
+				atmel,fifo-size = <32>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+			i2c1: i2c@600 {
+				compatible = "microchip,sam9x60-i2c";
+				reg = <0x600 0x200>;
+				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+				       <&dma AT91_XDMAC_DT_PERID(2)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+		};
+
+		trng: rng@e0048000 {
+			compatible = "atmel,at91sam9g45-trng";
+			reg = <0xe0048000 0x100>;
+			clocks = <&fabric_clk>;
+			status = "disabled";
+		};
+
+		aes: crypto@e004c000 {
+			compatible = "atmel,at91sam9g46-aes";
+			reg = <0xe004c000 0x100>;
+			interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&dma AT91_XDMAC_DT_PERID(12)>,
+			       <&dma AT91_XDMAC_DT_PERID(13)>;
+			dma-names = "tx", "rx";
+			clocks = <&fabric_clk>;
+			clock-names = "aes_clk";
+			status = "disabled";
+		};
+
+		flx2: flexcom@e0060000 {
+			compatible = "atmel,sama5d2-flexcom";
+			reg = <0xe0060000 0x100>;
+			clocks = <&clks GCK_ID_FLEXCOM2>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0xe0060000 0x800>;
+			status = "disabled";
+
+			usart2: serial@200 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
+				       <&dma AT91_XDMAC_DT_PERID(6)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "usart";
+				atmel,fifo-size = <32>;
+				status = "disabled";
+			};
+
+			spi2: spi@400 {
+				compatible = "atmel,at91rm9200-spi";
+				reg = <0x400 0x200>;
+				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
+				       <&dma AT91_XDMAC_DT_PERID(6)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "spi_clk";
+				atmel,fifo-size = <32>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+			i2c2: i2c@600 {
+				compatible = "microchip,sam9x60-i2c";
+				reg = <0x600 0x200>;
+				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&fabric_clk>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+		};
+
+		flx3: flexcom@e0064000 {
+			compatible = "atmel,sama5d2-flexcom";
+			reg = <0xe0064000 0x100>;
+			clocks = <&clks GCK_ID_FLEXCOM3>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0xe0064000 0x800>;
+			status = "disabled";
+
+			usart3: serial@200 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0x200 0x200>;
+				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
+				       <&dma AT91_XDMAC_DT_PERID(8)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "usart";
+				atmel,fifo-size = <32>;
+				status = "disabled";
+			};
+
+			spi3: spi@400 {
+				compatible = "atmel,at91rm9200-spi";
+				reg = <0x400 0x200>;
+				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
+				       <&dma AT91_XDMAC_DT_PERID(8)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				clock-names = "spi_clk";
+				atmel,fifo-size = <32>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+
+			i2c3: i2c@600 {
+				compatible = "microchip,sam9x60-i2c";
+				reg = <0x600 0x200>;
+				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
+				       <&dma AT91_XDMAC_DT_PERID(8)>;
+				dma-names = "tx", "rx";
+				clocks = <&fabric_clk>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+		};
+
+		dma: dma-controller@e0068000 {
+			compatible = "microchip,sama7g5-dma";
+			reg = <0xe0068000 0x1000>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			dma-channels = <16>;
+			#dma-cells = <1>;
+			clocks = <&fabric_clk>;
+			clock-names = "dma_clk";
+		};
+
+		sha: crypto@e006c000 {
+			compatible = "atmel,at91sam9g46-sha";
+			reg = <0xe006c000 0xec>;
+			interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&dma AT91_XDMAC_DT_PERID(14)>;
+			dma-names = "tx";
+			clocks = <&fabric_clk>;
+			clock-names = "sha_clk";
+			status = "disabled";
+		};
+
+		timer: timer@e008c000 {
+			compatible = "snps,dw-apb-timer";
+			reg = <0xe008c000 0x400>;
+			clocks = <&fabric_clk>;
+			clock-names = "timer";
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		watchdog: watchdog@e0090000 {
+			compatible = "snps,dw-wdt";
+			reg = <0xe0090000 0x1000>;
+			interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&fabric_clk>;
+		};
+
+		cpu_ctrl: syscon@e00c0000 {
+			compatible = "microchip,lan966x-cpu-syscon", "syscon";
+			reg = <0xe00c0000 0x350>;
+		};
+
+		switch: switch@e00c0000 {
+			compatible = "microchip,lan9691-switch";
+			reg = <0xe00c0000 0x0010000>,
+			      <0xe2010000 0x1410000>;
+			reg-names = "cpu", "devices";
+			interrupt-names = "xtr", "fdma", "ptp";
+			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI  9 IRQ_TYPE_LEVEL_HIGH>;
+			resets = <&reset 0>;
+			reset-names = "switch";
+			status = "disabled";
+		};
+
+		clks: clock-controller@e00c00b4 {
+			compatible = "microchip,lan9691-gck";
+			#clock-cells = <1>;
+			clocks = <&cpu_clk>, <&ddr_clk>, <&fx100_clk>;
+			clock-names = "cpu", "ddr", "sys";
+			reg = <0xe00c00b4 0x30>, <0xe00c0308 0x4>;
+		};
+
+		reset: reset-controller@e201000c {
+			compatible = "microchip,lan9691-switch-reset",
+				     "microchip,lan966x-switch-reset";
+			reg = <0xe201000c 0x4>;
+			reg-names = "gcb";
+			#reset-cells = <1>;
+			cpu-syscon = <&cpu_ctrl>;
+		};
+
+		gpio: pinctrl@e20100d4 {
+			compatible = "microchip,lan9691-pinctrl";
+			reg = <0xe20100d4 0xd4>,
+			      <0xe2010370 0xa8>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&gpio 0 0 66>;
+			interrupt-controller;
+			interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+			#interrupt-cells = <2>;
+		};
+
+		mdio0: mdio@e20101a8 {
+			compatible = "mscc,ocelot-miim";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0xe20101a8 0x24>;
+			clocks = <&fx100_clk>;
+			status = "disabled";
+		};
+
+		mdio1: mdio@e20101cc {
+			compatible = "mscc,ocelot-miim";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0xe20101cc 0x24>;
+			clocks = <&fx100_clk>;
+			status = "disabled";
+		};
+
+		sgpio: gpio@e2010230 {
+			compatible = "microchip,sparx5-sgpio";
+			reg = <0xe2010230 0x118>;
+			clocks = <&fx100_clk>;
+			resets = <&reset 0>;
+			reset-names = "switch";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+
+			sgpio_in: gpio@0 {
+				compatible = "microchip,sparx5-sgpio-bank";
+				reg = <0>;
+				gpio-controller;
+				#gpio-cells = <3>;
+				interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-controller;
+				#interrupt-cells = <3>;
+			};
+
+			sgpio_out: gpio@1 {
+				compatible = "microchip,sparx5-sgpio-bank";
+				reg = <1>;
+				gpio-controller;
+				#gpio-cells = <3>;
+			};
+		};
+
+		tmon: hwmon@e2020100 {
+			compatible = "microchip,sparx5-temp";
+			reg = <0xe2020100 0xc>;
+			clocks = <&fx100_clk>;
+			#thermal-sensor-cells = <0>;
+		};
+
+		serdes: serdes@e3410000 {
+			compatible = "microchip,lan9691-serdes";
+			#phy-cells = <1>;
+			clocks = <&fabric_clk>;
+			reg = <0xe3410000 0x150000>;
+		};
+
+		gic: interrupt-controller@e8c11000 {
+			compatible = "arm,gic-400";
+			#interrupt-cells = <3>;
+			interrupt-controller;
+			reg = <0xe8c11000 0x1000>, /* Distributor GICD_ */
+			      <0xe8c12000 0x2000>, /* CPU interface GICC_ */
+			      <0xe8c14000 0x2000>, /* Virt interface control */
+			      <0xe8c16000 0x2000>; /* Virt CPU interface */
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+		};
+	};
+};
-- 
2.52.0

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 499 bytes --]

On Wed, Dec 03, 2025 at 01:21:32PM +0100, Robert Marko wrote:
> Add support for Microchip LAN969x switch SoC, including the EV23X71A
> EVB board.
> 
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> ---
>  arch/arm64/boot/dts/microchip/Makefile        |   2 +
>  .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++

>  arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++

The majority of devices in this file are missing soc-specific
compatibles.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Robert Marko]

On Wed, Dec 3, 2025 at 8:21 PM Conor Dooley <conor@kernel.org> wrote:
>
> On Wed, Dec 03, 2025 at 01:21:32PM +0100, Robert Marko wrote:
> > Add support for Microchip LAN969x switch SoC, including the EV23X71A
> > EVB board.
> >
> > Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> > ---
> >  arch/arm64/boot/dts/microchip/Makefile        |   2 +
> >  .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++
>
> >  arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++
>
> The majority of devices in this file are missing soc-specific
> compatibles.

Hi,
I missed this before.

The majority of the devices are simply reused from the AT91 series, so
I thought it was not required to
update all of the bindings to add the LAN9691 compatible.

If that is required, I will do so in v2.

Regards,
Robert
-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura d.d.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Nicolas Ferre]

Robert,

On 15/12/2025 at 12:36, Robert Marko wrote:
> On Wed, Dec 3, 2025 at 8:21 PM Conor Dooley <conor@kernel.org> wrote:
>>
>> On Wed, Dec 03, 2025 at 01:21:32PM +0100, Robert Marko wrote:
>>> Add support for Microchip LAN969x switch SoC, including the EV23X71A
>>> EVB board.
>>>
>>> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
>>> ---
>>>   arch/arm64/boot/dts/microchip/Makefile        |   2 +
>>>   .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++
>>
>>>   arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++
>>
>> The majority of devices in this file are missing soc-specific
>> compatibles.
> 
> Hi,
> I missed this before.
> 
> The majority of the devices are simply reused from the AT91 series, so
> I thought it was not required to
> update all of the bindings to add the LAN9691 compatible.
> 
> If that is required, I will do so in v2.
Well, history told us it was better (in addition to be required by DT 
best practices). Indeed, even if the same IP block is used, sometimes 
integration subtleties pay game with us and a dedicated compatible 
string saves us.

Regards,
   Nicolas

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Robert Marko]

On Mon, Dec 15, 2025 at 1:32 PM Nicolas Ferre
<nicolas.ferre@microchip.com> wrote:
>
> Robert,
>
> On 15/12/2025 at 12:36, Robert Marko wrote:
> > On Wed, Dec 3, 2025 at 8:21 PM Conor Dooley <conor@kernel.org> wrote:
> >>
> >> On Wed, Dec 03, 2025 at 01:21:32PM +0100, Robert Marko wrote:
> >>> Add support for Microchip LAN969x switch SoC, including the EV23X71A
> >>> EVB board.
> >>>
> >>> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> >>> ---
> >>>   arch/arm64/boot/dts/microchip/Makefile        |   2 +
> >>>   .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++
> >>
> >>>   arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++
> >>
> >> The majority of devices in this file are missing soc-specific
> >> compatibles.
> >
> > Hi,
> > I missed this before.
> >
> > The majority of the devices are simply reused from the AT91 series, so
> > I thought it was not required to
> > update all of the bindings to add the LAN9691 compatible.
> >
> > If that is required, I will do so in v2.
> Well, history told us it was better (in addition to be required by DT
> best practices). Indeed, even if the same IP block is used, sometimes
> integration subtleties pay game with us and a dedicated compatible
> string saves us.

Ok, I will then update the required bindings and include them in the
series in v2.

Regards,
Robert
>
> Regards,
>    Nicolas



-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura d.d.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Claudiu Beznea]

Hi, Robert,

On 12/3/25 14:21, Robert Marko wrote:
> Add support for Microchip LAN969x switch SoC, including the EV23X71A
> EVB board.

Could you please split SoC and board device trees in different patches?

> 
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> ---
>  arch/arm64/boot/dts/microchip/Makefile        |   2 +
>  .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++
>  arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++
>  3 files changed, 1245 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
>  create mode 100644 arch/arm64/boot/dts/microchip/lan969x.dtsi
> 
> diff --git a/arch/arm64/boot/dts/microchip/Makefile b/arch/arm64/boot/dts/microchip/Makefile
> index c6e0313eea0f..d02ac50aae79 100644
> --- a/arch/arm64/boot/dts/microchip/Makefile
> +++ b/arch/arm64/boot/dts/microchip/Makefile
> @@ -2,3 +2,5 @@
>  dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb125.dtb
>  dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb134.dtb sparx5_pcb134_emmc.dtb
>  dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb135.dtb sparx5_pcb135_emmc.dtb
> +
> +dtb-$(CONFIG_ARCH_LAN969X) += lan9696-ev23x71a.dtb

Please keep it alphanumerically sorted, so before SPARCX5

> \ No newline at end of file
> diff --git a/arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts b/arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
> new file mode 100644
> index 000000000000..6bbddad2a0b9
> --- /dev/null
> +++ b/arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
> @@ -0,0 +1,761 @@
> +// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
> +/*
> + * Copyright (c) 2025 Microchip Technology Inc. and its subsidiaries.
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/leds/common.h>
> +#include "lan969x.dtsi"
> +
> +/ {
> +	model = "Microchip EV23X71A";
> +	compatible = "microchip,ev23x71a", "microchip,lan969x";
> +
> +	aliases {
> +		serial0 = &usart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	gpio-restart {
> +		compatible = "gpio-restart";
> +		gpios = <&gpio 60 GPIO_ACTIVE_LOW>;
> +		open-source;
> +		priority = <200>;
> +	};
> +
> +	i2c-mux {
> +		compatible = "i2c-mux-gpio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		i2c-parent = <&i2c3>;
> +

This line could be dropped.

> +		mux-gpios = <&sgpio_out 0 1 GPIO_ACTIVE_HIGH
> +			     &sgpio_out 0 2 GPIO_ACTIVE_HIGH
> +			     &sgpio_out 0 3 GPIO_ACTIVE_HIGH>;

Enclose each entry in <>. See
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/dts-coding-style.rst#n179

> +		idle-state = <0x8>;
> +
> +		i2c_sfp0: i2c@0 {
> +			reg = <0x0>;
> +		};
> +
> +		i2c_sfp1: i2c@1 {
> +			reg = <0x1>;
> +		};
> +
> +		i2c_sfp2: i2c@2 {
> +			reg = <0x2>;
> +		};
> +
> +		i2c_sfp3: i2c@3 {
> +			reg = <0x3>;
> +		};
> +
> +		i2c_poe: i2c@7 {
> +			reg = <0x7>;
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		led-status {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_STATUS;
> +			gpios = <&gpio 61 GPIO_ACTIVE_LOW>;
> +		};
> +
> +		led-sfp1-green {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <0>;
> +			gpios = <&sgpio_out 6 0 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp1-yellow {
> +			color = <LED_COLOR_ID_YELLOW>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <0>;
> +			gpios = <&sgpio_out 6 1 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp2-green {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <1>;
> +			gpios = <&sgpio_out 7 0 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp2-yellow {
> +			color = <LED_COLOR_ID_YELLOW>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <1>;
> +			gpios = <&sgpio_out 7 1 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp3-green {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <2>;
> +			gpios = <&sgpio_out 8 0 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp3-yellow {
> +			color = <LED_COLOR_ID_YELLOW>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <2>;
> +			gpios = <&sgpio_out 8 1 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp4-green {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <3>;
> +			gpios = <&sgpio_out 9 0 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +
> +		led-sfp4-yellow {
> +			color = <LED_COLOR_ID_YELLOW>;
> +			function = LED_FUNCTION_LAN;
> +			function-enumerator = <3>;
> +			gpios = <&sgpio_out 9 1 GPIO_ACTIVE_LOW>;
> +			default-state = "off";
> +		};
> +	};
> +
> +	mux-controller {
> +		compatible = "gpio-mux";
> +		#mux-control-cells = <0>;
> +

This line could be dropped.

> +		mux-gpios = <&sgpio_out 1 2 GPIO_ACTIVE_LOW>,
> +			    <&sgpio_out 1 3 GPIO_ACTIVE_LOW>;
> +	};
> +
> +	sfp0: sfp0 {
> +		compatible = "sff,sfp";
> +		i2c-bus = <&i2c_sfp0>;
> +		tx-disable-gpios = <&sgpio_out 6 2 GPIO_ACTIVE_HIGH>;
> +		los-gpios = <&sgpio_in 6 0 GPIO_ACTIVE_HIGH>;
> +		mod-def0-gpios = <&sgpio_in 6 1 GPIO_ACTIVE_LOW>;
> +		tx-fault-gpios = <&sgpio_in 6 2 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	sfp1: sfp1 {
> +		compatible = "sff,sfp";
> +		i2c-bus = <&i2c_sfp1>;
> +		tx-disable-gpios = <&sgpio_out 7 2 GPIO_ACTIVE_HIGH>;
> +		los-gpios = <&sgpio_in 7 0 GPIO_ACTIVE_HIGH>;
> +		mod-def0-gpios = <&sgpio_in 7 1 GPIO_ACTIVE_LOW>;
> +		tx-fault-gpios = <&sgpio_in 7 2 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	sfp2: sfp2 {
> +		compatible = "sff,sfp";
> +		i2c-bus = <&i2c_sfp2>;
> +		tx-disable-gpios = <&sgpio_out 8 2 GPIO_ACTIVE_HIGH>;
> +		los-gpios = <&sgpio_in 8 0 GPIO_ACTIVE_HIGH>;
> +		mod-def0-gpios = <&sgpio_in 8 1 GPIO_ACTIVE_LOW>;
> +		tx-fault-gpios = <&sgpio_in 8 2 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	sfp3: sfp3 {
> +		compatible = "sff,sfp";
> +		i2c-bus = <&i2c_sfp3>;
> +		tx-disable-gpios = <&sgpio_out 9 2 GPIO_ACTIVE_HIGH>;
> +		los-gpios = <&sgpio_in 9 0 GPIO_ACTIVE_HIGH>;
> +		mod-def0-gpios = <&sgpio_in 9 1 GPIO_ACTIVE_LOW>;
> +		tx-fault-gpios = <&sgpio_in 9 2 GPIO_ACTIVE_HIGH>;
> +	};
> +};
> +
> +&flx0 {
> +	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
> +	status = "okay";
> +};
> +
> +&usart0 {
> +	pinctrl-0 = <&fc0_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};

Although, I understand why flexcom inner node labels were kept near their
corresponding parent labels (and I know there is at least one board file
that follow this approach), I tend to go forward with the approach that was
proposed by Horatiu in [1], thus everything alphanumerically sorted, if
everyone is OK with this.

[1]
https://lore.kernel.org/all/20251201082629.2326339-3-horatiu.vultur@microchip.com

> +
> +&flx2 {
> +	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
> +	status = "okay";
> +};
> +
> +&spi2 {
> +	pinctrl-0 = <&fc2_pins>;
> +	pinctrl-names = "default";
> +	cs-gpios = <&gpio 63 GPIO_ACTIVE_LOW>;
> +	status = "okay";
> +};
> +
> +&flx3 {
> +	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	pinctrl-0 = <&fc3_pins>;
> +	pinctrl-names = "default";
> +	i2c-analog-filter;
> +	i2c-digital-filter;
> +	i2c-digital-filter-width-ns = <35>;
> +	i2c-sda-hold-time-ns = <1500>;
> +	status = "okay";
> +};
> +
> +&gpio {
> +	emmc_sd_pins: emmc-sd-pins {
> +		/* eMMC_SD - CMD, CLK, D0, D1, D2, D3, D4, D5, D6, D7, RSTN */
> +		pins = "GPIO_14", "GPIO_15", "GPIO_16", "GPIO_17",
> +		       "GPIO_18", "GPIO_19", "GPIO_20", "GPIO_21",
> +		       "GPIO_22", "GPIO_23", "GPIO_24";
> +		function = "emmc_sd";
> +	};
> +
> +	fan_pins: fan-pins {
> +		pins = "GPIO_25", "GPIO_26";
> +		function = "fan";
> +	};
> +
> +	fc0_pins: fc0-pins {
> +		pins = "GPIO_3", "GPIO_4";
> +		function = "fc";
> +	};
> +
> +	fc2_pins: fc2-pins {
> +		pins = "GPIO_64", "GPIO_65", "GPIO_66";
> +		function = "fc";
> +	};
> +
> +	fc3_pins: fc3-pins {
> +		pins = "GPIO_55", "GPIO_56";
> +		function = "fc";
> +	};
> +
> +	mdio_pins: mdio-pins {
> +		pins = "GPIO_9", "GPIO_10";
> +		function = "miim";
> +	};
> +
> +	mdio_irq_pins: mdio-irq-pins {
> +		pins = "GPIO_11";
> +		function = "miim_irq";
> +	};
> +
> +	sgpio_pins: sgpio-pins {
> +		/* SCK, D0, D1, LD */
> +		pins = "GPIO_5", "GPIO_6", "GPIO_7", "GPIO_8";
> +		function = "sgpio_a";
> +	};
> +
> +	usb_ulpi_pins: usb-ulpi-pins {
> +		pins = "GPIO_30", "GPIO_31", "GPIO_32", "GPIO_33",
> +		"GPIO_34", "GPIO_35", "GPIO_36", "GPIO_37",

Please align it to the above "GPIO_30" as it has been done for emmc.

> +		"GPIO_38", "GPIO_39", "GPIO_40", "GPIO_41";
> +		function = "usb_ulpi";
> +	};
> +
> +	usb_rst_pins: usb-rst-pins {
> +		pins = "GPIO_12";
> +		function = "usb2phy_rst";
> +	};
> +
> +	usb_over_pins: usb-over-pins {
> +		pins = "GPIO_13";
> +		function = "usb_over_detect";
> +	};
> +
> +	usb_power_pins: usb-power-pins {
> +		pins = "GPIO_1";
> +		function = "usb_power";
> +	};
> +
> +	ptp_out_pins: ptp-out-pins {
> +		pins = "GPIO_58";
> +		function = "ptpsync_4";
> +	};
> +
> +	ptp_ext_pins: ptp-ext-pins {
> +		pins = "GPIO_59";
> +		function = "ptpsync_5";
> +	};
> +};
> +
> +&tmon {

Keep entries alphanumerically sorted, thus after mdio0.

> +	pinctrl-0 = <&fan_pins>;
> +	pinctrl-names = "default";
> +};
> +
> +&mdio0 {
> +	pinctrl-0 = <&mdio_pins>, <&mdio_irq_pins>;
> +	pinctrl-names = "default";
> +	reset-gpios = <&gpio 62 GPIO_ACTIVE_LOW>;
> +	status = "okay";
> +
> +	phy3: phy@3 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <3>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy4: phy@4 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <4>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy5: phy@5 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <5>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy6: phy@6 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <6>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy7: phy@7 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <7>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy8: phy@8 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <8>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy9: phy@9 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <9>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy10: phy@10 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <10>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy11: phy@11 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <11>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy12: phy@12 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <12>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy13: phy@13 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <13>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy14: phy@14 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <14>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy15: phy@15 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <15>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy16: phy@16 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <16>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy17: phy@17 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <17>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy18: phy@18 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <18>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy19: phy@19 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <19>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy20: phy@20 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <20>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy21: phy@21 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <21>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy22: phy@22 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <22>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy23: phy@23 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <23>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy24: phy@24 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <24>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy25: phy@25 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <25>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy26: phy@26 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <26>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +
> +	phy27: phy@27 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <27>;
> +		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
> +		interrupt-parent = <&gpio>;
> +	};
> +};
> +
> +&serdes {
> +	status = "okay";
> +};
> +
> +&sgpio {
> +	pinctrl-0 = <&sgpio_pins>;
> +	pinctrl-names = "default";
> +

Please drop this line.

> +	microchip,sgpio-port-ranges = <0 1>, <6 9>;
> +	status = "okay";
> +
> +	gpio@0 {
> +		ngpios = <128>;
> +	};
> +	gpio@1 {
> +		ngpios = <128>;
> +	};
> +};
> +
> +&switch {
> +	pinctrl-0 = <&ptp_out_pins>, <&ptp_ext_pins>;
> +	pinctrl-names = "default";
> +

Plese drop this line.

> +	status = "okay";

And add one here.

> +	ethernet-ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port0: port@0 {
> +			reg = <0>;
> +			microchip,bandwidth = <1000>;

Vendor specific properties goes at the end of the node, before status,
according to this:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/dts-coding-style.rst#n122.
Valid for the rest of the port nodes.

> +			phy-handle = <&phy4>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 0>;
> +		};
> +
> +		port1: port@1 {
> +			reg = <1>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy5>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 0>;
> +		};
> +
> +		port2: port@2 {
> +			reg = <2>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy6>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 0>;
> +		};
> +
> +		port3: port@3 {
> +			reg = <3>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy7>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 0>;
> +		};
> +
> +		port4: port@4 {
> +			reg = <4>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy8>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 1>;
> +		};
> +
> +		port5: port@5 {
> +			reg = <5>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy9>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 1>;
> +		};
> +
> +		port6: port@6 {
> +			reg = <6>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy10>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 1>;
> +		};
> +
> +		port7: port@7 {
> +			reg = <7>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy11>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 1>;
> +		};
> +
> +		port8: port@8 {
> +			reg = <8>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy12>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 2>;
> +		};
> +
> +		port9: port@9 {
> +			reg = <9>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy13>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 2>;
> +		};
> +
> +		port10: port@10 {
> +			reg = <10>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy14>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 2>;
> +		};
> +
> +		port11: port@11 {
> +			reg = <11>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy15>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 2>;
> +		};
> +
> +		port12: port@12 {
> +			reg = <12>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy16>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 3>;
> +		};
> +
> +		port13: port@13 {
> +			reg = <13>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy17>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 3>;
> +		};
> +
> +		port14: port@14 {
> +			reg = <14>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy18>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 3>;
> +		};
> +
> +		port15: port@15 {
> +			reg = <15>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy19>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 3>;
> +		};
> +
> +		port16: port@16 {
> +			reg = <16>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy20>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 4>;
> +		};
> +
> +		port17: port@17 {
> +			reg = <17>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy21>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 4>;
> +		};
> +
> +		port18: port@18 {
> +			reg = <18>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy22>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 4>;
> +		};
> +
> +		port19: port@19 {
> +			reg = <19>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy23>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 4>;
> +		};
> +
> +		port20: port@20 {
> +			reg = <20>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy24>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 5>;
> +		};
> +
> +		port21: port@21 {
> +			reg = <21>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy25>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 5>;
> +		};
> +
> +		port22: port@22 {
> +			reg = <22>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy26>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 5>;
> +		};
> +
> +		port23: port@23 {
> +			reg = <23>;
> +			microchip,bandwidth = <1000>;
> +			phy-handle = <&phy27>;
> +			phy-mode = "qsgmii";
> +			phys = <&serdes 5>;
> +		};
> +
> +		port24: port@24 {
> +			reg = <24>;
> +			microchip,bandwidth = <10000>;
> +			phys = <&serdes 6>;
> +			phy-mode = "10gbase-r";
> +			sfp = <&sfp0>;
> +			microchip,sd-sgpio = <24>;
> +			managed = "in-band-status";
> +		};
> +
> +		port25: port@25 {
> +			reg = <25>;
> +			microchip,bandwidth = <10000>;
> +			phys = <&serdes 7>;
> +			phy-mode = "10gbase-r";
> +			sfp = <&sfp1>;
> +			microchip,sd-sgpio = <28>;
> +			managed = "in-band-status";
> +		};
> +
> +		port26: port@26 {
> +			reg = <26>;
> +			microchip,bandwidth = <10000>;
> +			phys = <&serdes 8>;
> +			phy-mode = "10gbase-r";
> +			sfp = <&sfp2>;
> +			microchip,sd-sgpio = <32>;
> +			managed = "in-band-status";
> +		};
> +
> +		port27: port@27 {
> +			reg = <27>;
> +			microchip,bandwidth = <10000>;
> +			phys = <&serdes 9>;
> +			phy-mode = "10gbase-r";
> +			sfp = <&sfp3>;
> +			microchip,sd-sgpio = <36>;
> +			managed = "in-band-status";
> +		};
> +
> +		port29: port@29 {
> +			reg = <29>;
> +			microchip,bandwidth = <1000>;
> +			phys = <&serdes 11>;
> +			phy-handle = <&phy3>;
> +			phy-mode = "rgmii";

From chekpatch:

WARNING: phy-mode "rgmii" without comment -- delays on the PCB should be
described, otherwise use "rgmii-id"
#779: FILE: arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts:750:
+                       phy-mode = "rgmii";

> +			rx-internal-delay-ps = <1000>;
> +			tx-internal-delay-ps = <1000>;
> +		};
> +	};
> +};
> +
> +&usb {
> +	status = "okay";

Status should be the last property in this node according to the links
shared above.

> +	pinctrl-0 = <&usb_ulpi_pins>, <&usb_rst_pins>, <&usb_over_pins>, <&usb_power_pins>;
> +	pinctrl-names = "default";
> +};
> diff --git a/arch/arm64/boot/dts/microchip/lan969x.dtsi b/arch/arm64/boot/dts/microchip/lan969x.dtsi
> new file mode 100644
> index 000000000000..39ea1999c801
> --- /dev/null
> +++ b/arch/arm64/boot/dts/microchip/lan969x.dtsi
> @@ -0,0 +1,482 @@
> +// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
> +/*
> + * Copyright (c) 2025 Microchip Technology Inc. and its subsidiaries.
> + */
> +
> +#include <dt-bindings/clock/microchip,lan969x.h>
> +#include <dt-bindings/dma/at91.h>
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/mfd/at91-usart.h>
> +#include <dt-bindings/mfd/atmel-flexcom.h>
> +

As Conor mentioned, all nodes are missing SoC specific compatibles.

> +/ {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	model = "Microchip LAN969x";
> +	compatible = "microchip,lan969x";
> +	interrupt-parent = <&gic>;
> +
> +	psci {
> +		compatible = "arm,psci-1.0";
> +		method = "smc";
> +	};

Keep it alphanumerically sorted.

> +
> +	clocks {
> +		fx100_clk: fx100-clk {
> +			compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <320000000>;
> +		};
> +
> +		cpu_clk: cpu-clk {
> +			compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <1000000000>;
> +		};
> +
> +		ddr_clk: ddr-clk {
> +			compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <600000000>;
> +		};
> +
> +		fabric_clk: fabric-clk {
> +			compatible = "fixed-clock";
> +			#clock-cells = <0>;
> +			clock-frequency = <250000000>;
> +		};
> +	};
> +
> +	cpus {
> +		#address-cells = <2>;
> +		#size-cells = <0>;
> +
> +		cpu0: cpu@0 {
> +			compatible = "arm,cortex-a53";
> +			device_type = "cpu";
> +			reg = <0x0 0x0>;
> +			next-level-cache = <&l2_0>;
> +		};
> +
> +		l2_0: l2-cache {
> +			compatible = "cache";
> +			cache-level = <2>;
> +			cache-unified;
> +		};
> +	};
> +
> +	pmu {
> +		compatible = "arm,cortex-a53-pmu";
> +		interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	timer {
> +		compatible = "arm,armv8-timer";
> +		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>, /* Secure Phys IRQ */
> +			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>, /* Non-secure Phys IRQ */
> +			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>, /* Virt IRQ */
> +			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>; /* Hyp IRQ */
> +	};
> +
> +	axi: axi {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		usb: usb@300000 {
> +			compatible = "microchip,lan9691-dwc3", "snps,dwc3";
> +			reg = <0x300000 0x80000>;
> +			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clks GCK_GATE_USB_DRD>,
> +				 <&clks GCK_ID_USB_REFCLK>;
> +			clock-names = "bus_early", "ref";
> +			assigned-clocks = <&clks GCK_ID_USB_REFCLK>;
> +			assigned-clock-rates = <60000000>;
> +			maximum-speed = "high-speed";
> +			dr_mode = "host";
> +			status = "disabled";
> +		};
> +
> +		flx0: flexcom@e0040000 {
> +			compatible = "atmel,sama5d2-flexcom";
> +			reg = <0xe0040000 0x100>;

ranges would be here according to the dts coding style pointed above.

> +			clocks = <&clks GCK_ID_FLEXCOM0>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0xe0040000 0x800>;
> +			status = "disabled";
> +
> +			usart0: serial@200 {
> +				compatible = "atmel,at91sam9260-usart";
> +				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;

Please keep vendor specific properties toward the end of the node as
pointed above.

> +				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
> +				       <&dma AT91_XDMAC_DT_PERID(2)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "usart";
> +				atmel,fifo-size = <32>;
> +				status = "disabled";
> +			};
> +
> +			spi0: spi@400 {
> +				compatible = "atmel,at91rm9200-spi";
> +				reg = <0x400 0x200>;
> +				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
> +				       <&dma AT91_XDMAC_DT_PERID(2)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "spi_clk";
> +				atmel,fifo-size = <32>;

Please move this line before the status one.

> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +
> +			i2c0: i2c@600 {
> +				compatible = "microchip,sam9x60-i2c";
> +				reg = <0x600 0x200>;
> +				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
> +				       <&dma AT91_XDMAC_DT_PERID(2)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		flx1: flexcom@e0044000 {
> +			compatible = "atmel,sama5d2-flexcom";
> +			reg = <0xe0044000 0x100>;

Please move the ranges here.

> +			clocks = <&clks GCK_ID_FLEXCOM1>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0xe0044000 0x800>;
> +			status = "disabled";
> +
> +			usart1: serial@200 {
> +				compatible = "atmel,at91sam9260-usart";
> +				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;

Please move this one close to atmel,fifo-size

> +				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
> +				       <&dma AT91_XDMAC_DT_PERID(2)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "usart";
> +				atmel,fifo-size = <32>;
> +				status = "disabled";
> +			};
> +
> +			spi1: spi@400 {
> +				compatible = "atmel,at91rm9200-spi";
> +				reg = <0x400 0x200>;
> +				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
> +				       <&dma AT91_XDMAC_DT_PERID(2)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "spi_clk";
> +				atmel,fifo-size = <32>;

Please move this one before status.

> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +
> +			i2c1: i2c@600 {
> +				compatible = "microchip,sam9x60-i2c";
> +				reg = <0x600 0x200>;
> +				interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
> +				       <&dma AT91_XDMAC_DT_PERID(2)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		trng: rng@e0048000 {
> +			compatible = "atmel,at91sam9g45-trng";
> +			reg = <0xe0048000 0x100>;
> +			clocks = <&fabric_clk>;
> +			status = "disabled";
> +		};
> +
> +		aes: crypto@e004c000 {
> +			compatible = "atmel,at91sam9g46-aes";
> +			reg = <0xe004c000 0x100>;
> +			interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
> +			dmas = <&dma AT91_XDMAC_DT_PERID(12)>,
> +			       <&dma AT91_XDMAC_DT_PERID(13)>;
> +			dma-names = "tx", "rx";
> +			clocks = <&fabric_clk>;
> +			clock-names = "aes_clk";
> +			status = "disabled";
> +		};
> +
> +		flx2: flexcom@e0060000 {
> +			compatible = "atmel,sama5d2-flexcom";
> +			reg = <0xe0060000 0x100>;

ranges would go here.

> +			clocks = <&clks GCK_ID_FLEXCOM2>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0xe0060000 0x800>;
> +			status = "disabled";
> +
> +			usart2: serial@200 {
> +				compatible = "atmel,at91sam9260-usart";
> +				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;

Please move this close to atmel,fifo-size.

> +				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
> +				       <&dma AT91_XDMAC_DT_PERID(6)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "usart";
> +				atmel,fifo-size = <32>;
> +				status = "disabled";
> +			};
> +
> +			spi2: spi@400 {
> +				compatible = "atmel,at91rm9200-spi";
> +				reg = <0x400 0x200>;
> +				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
> +				       <&dma AT91_XDMAC_DT_PERID(6)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "spi_clk";
> +				atmel,fifo-size = <32>;

Please move this one before status.

> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +
> +			i2c2: i2c@600 {
> +				compatible = "microchip,sam9x60-i2c";
> +				reg = <0x600 0x200>;
> +				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&fabric_clk>;

No DMA for this node?

> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		flx3: flexcom@e0064000 {
> +			compatible = "atmel,sama5d2-flexcom";
> +			reg = <0xe0064000 0x100>;

ranges would go here.

> +			clocks = <&clks GCK_ID_FLEXCOM3>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0xe0064000 0x800>;
> +			status = "disabled";
> +
> +			usart3: serial@200 {
> +				compatible = "atmel,at91sam9260-usart";
> +				reg = <0x200 0x200>;
> +				atmel,usart-mode = <AT91_USART_MODE_SERIAL>;

This line should go close to atmel,fifo-size

> +				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
> +				       <&dma AT91_XDMAC_DT_PERID(8)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "usart";
> +				atmel,fifo-size = <32>;
> +				status = "disabled";
> +			};
> +
> +			spi3: spi@400 {
> +				compatible = "atmel,at91rm9200-spi";
> +				reg = <0x400 0x200>;
> +				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
> +				       <&dma AT91_XDMAC_DT_PERID(8)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				clock-names = "spi_clk";
> +				atmel,fifo-size = <32>;

Please move this one before status.

> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +
> +			i2c3: i2c@600 {
> +				compatible = "microchip,sam9x60-i2c";
> +				reg = <0x600 0x200>;
> +				interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
> +				dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
> +				       <&dma AT91_XDMAC_DT_PERID(8)>;
> +				dma-names = "tx", "rx";
> +				clocks = <&fabric_clk>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				status = "disabled";
> +			};
> +		};
> +
> +		dma: dma-controller@e0068000 {
> +			compatible = "microchip,sama7g5-dma";
> +			reg = <0xe0068000 0x1000>;
> +			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
> +			dma-channels = <16>;
> +			#dma-cells = <1>;
> +			clocks = <&fabric_clk>;
> +			clock-names = "dma_clk";
> +		};
> +
> +		sha: crypto@e006c000 {
> +			compatible = "atmel,at91sam9g46-sha";
> +			reg = <0xe006c000 0xec>;
> +			interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
> +			dmas = <&dma AT91_XDMAC_DT_PERID(14)>;
> +			dma-names = "tx";
> +			clocks = <&fabric_clk>;
> +			clock-names = "sha_clk";
> +			status = "disabled";
> +		};
> +
> +		timer: timer@e008c000 {
> +			compatible = "snps,dw-apb-timer";
> +			reg = <0xe008c000 0x400>;
> +			clocks = <&fabric_clk>;
> +			clock-names = "timer";
> +			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
> +			status = "disabled";
> +		};
> +
> +		watchdog: watchdog@e0090000 {
> +			compatible = "snps,dw-wdt";
> +			reg = <0xe0090000 0x1000>;
> +			interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&fabric_clk>;
> +		};
> +
> +		cpu_ctrl: syscon@e00c0000 {
> +			compatible = "microchip,lan966x-cpu-syscon", "syscon";
> +			reg = <0xe00c0000 0x350>;
> +		};
> +
> +		switch: switch@e00c0000 {
> +			compatible = "microchip,lan9691-switch";
> +			reg = <0xe00c0000 0x0010000>,
> +			      <0xe2010000 0x1410000>;
> +			reg-names = "cpu", "devices";
> +			interrupt-names = "xtr", "fdma", "ptp";
> +			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI  9 IRQ_TYPE_LEVEL_HIGH>;
> +			resets = <&reset 0>;
> +			reset-names = "switch";
> +			status = "disabled";
> +		};
> +
> +		clks: clock-controller@e00c00b4 {
> +			compatible = "microchip,lan9691-gck";
> +			#clock-cells = <1>;
> +			clocks = <&cpu_clk>, <&ddr_clk>, <&fx100_clk>;
> +			clock-names = "cpu", "ddr", "sys";
> +			reg = <0xe00c00b4 0x30>, <0xe00c0308 0x4>;

This line should go after compatible. Please check the dts coding style
pointed above.

> +		};
> +
> +		reset: reset-controller@e201000c {
> +			compatible = "microchip,lan9691-switch-reset",
> +				     "microchip,lan966x-switch-reset";
> +			reg = <0xe201000c 0x4>;
> +			reg-names = "gcb";
> +			#reset-cells = <1>;
> +			cpu-syscon = <&cpu_ctrl>;
> +		};
> +
> +		gpio: pinctrl@e20100d4 {
> +			compatible = "microchip,lan9691-pinctrl";
> +			reg = <0xe20100d4 0xd4>,
> +			      <0xe2010370 0xa8>;
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +			gpio-ranges = <&gpio 0 0 66>;
> +			interrupt-controller;
> +			interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
> +			#interrupt-cells = <2>;
> +		};
> +
> +		mdio0: mdio@e20101a8 {
> +			compatible = "mscc,ocelot-miim";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <0xe20101a8 0x24>;

Same here, please follow the dts coding style.

> +			clocks = <&fx100_clk>;
> +			status = "disabled";
> +		};
> +
> +		mdio1: mdio@e20101cc {
> +			compatible = "mscc,ocelot-miim";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			reg = <0xe20101cc 0x24>;

Same here

> +			clocks = <&fx100_clk>;
> +			status = "disabled";
> +		};
> +
> +		sgpio: gpio@e2010230 {
> +			compatible = "microchip,sparx5-sgpio";
> +			reg = <0xe2010230 0x118>;
> +			clocks = <&fx100_clk>;
> +			resets = <&reset 0>;
> +			reset-names = "switch";
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			status = "disabled";
> +
> +			sgpio_in: gpio@0 {
> +				compatible = "microchip,sparx5-sgpio-bank";
> +				reg = <0>;
> +				gpio-controller;
> +				#gpio-cells = <3>;
> +				interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> +				interrupt-controller;
> +				#interrupt-cells = <3>;
> +			};
> +
> +			sgpio_out: gpio@1 {
> +				compatible = "microchip,sparx5-sgpio-bank";
> +				reg = <1>;
> +				gpio-controller;
> +				#gpio-cells = <3>;
> +			};
> +		};
> +
> +		tmon: hwmon@e2020100 {
> +			compatible = "microchip,sparx5-temp";
> +			reg = <0xe2020100 0xc>;
> +			clocks = <&fx100_clk>;
> +			#thermal-sensor-cells = <0>;
> +		};
> +
> +		serdes: serdes@e3410000 {
> +			compatible = "microchip,lan9691-serdes";
> +			#phy-cells = <1>;
> +			clocks = <&fabric_clk>;
> +			reg = <0xe3410000 0x150000>;

Same here.

> +		};
> +
> +		gic: interrupt-controller@e8c11000 {
> +			compatible = "arm,gic-400";
> +			#interrupt-cells = <3>;
> +			interrupt-controller;
> +			reg = <0xe8c11000 0x1000>, /* Distributor GICD_ */
> +			      <0xe8c12000 0x2000>, /* CPU interface GICC_ */
> +			      <0xe8c14000 0x2000>, /* Virt interface control */
> +			      <0xe8c16000 0x2000>; /* Virt CPU interface */

Same here.

> +			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
> +		};
> +	};
> +};

Thank you,
Claudiu

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Andrew Lunn]

On Sat, Dec 06, 2025 at 03:53:42PM +0200, Claudiu Beznea wrote:
> > +		port29: port@29 {
> > +			reg = <29>;
> > +			microchip,bandwidth = <1000>;
> > +			phys = <&serdes 11>;
> > +			phy-handle = <&phy3>;
> > +			phy-mode = "rgmii";
> 
> >From chekpatch:
> 
> WARNING: phy-mode "rgmii" without comment -- delays on the PCB should be
> described, otherwise use "rgmii-id"
> #779: FILE: arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts:750:
> +                       phy-mode = "rgmii";
> 
> > +			rx-internal-delay-ps = <1000>;
> > +			tx-internal-delay-ps = <1000>;
> > +		};

I did a very quick scan of the patch and missed that. It is great that
checkpatch is now commenting about "rgmii".

1ns is very odd. You need a total of 2ns, so where is the rest coming
from? This definitely needs a comment explaining what is going on.

Also, RGMII typically does not need a SERDES, unless there is
something like an SGMII to RGMII converter being used. So is the phys
property needed?

	Andrew

Re: [PATCH 4/4] arm64: dts: microchip: add LAN969x support

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1212 bytes --]

On Wed, Dec 03, 2025 at 01:21:32PM +0100, Robert Marko wrote:
> Add support for Microchip LAN969x switch SoC, including the EV23X71A
> EVB board.
> 
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> ---
>  arch/arm64/boot/dts/microchip/Makefile        |   2 +
>  .../boot/dts/microchip/lan9696-ev23x71a.dts   | 761 ++++++++++++++++++
>  arch/arm64/boot/dts/microchip/lan969x.dtsi    | 482 +++++++++++
>  3 files changed, 1245 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/microchip/lan9696-ev23x71a.dts
>  create mode 100644 arch/arm64/boot/dts/microchip/lan969x.dtsi
> 
> diff --git a/arch/arm64/boot/dts/microchip/Makefile b/arch/arm64/boot/dts/microchip/Makefile
> index c6e0313eea0f..d02ac50aae79 100644
> --- a/arch/arm64/boot/dts/microchip/Makefile
> +++ b/arch/arm64/boot/dts/microchip/Makefile
> @@ -2,3 +2,5 @@
>  dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb125.dtb
>  dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb134.dtb sparx5_pcb134_emmc.dtb
>  dtb-$(CONFIG_ARCH_SPARX5) += sparx5_pcb135.dtb sparx5_pcb135_emmc.dtb
> +

> +dtb-$(CONFIG_ARCH_LAN969X) += lan9696-ev23x71a.dtb

ngl, I wonder why this config even exists, it's not meaningfully different
to ARCH_SPARX5.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

Re: [PATCH 1/4] dt-bindings: usb: Add Microchip LAN969x support

[Claudiu Beznea]

Hi, Robert,

On 12/3/25 14:21, Robert Marko wrote:
> Microchip LAN969x has DWC3 compatible controller, though limited to 2.0(HS)
> speed, so document it.
> 
> Signed-off-by: Robert Marko <robert.marko@sartura.hr>
> ---
>  .../bindings/usb/microchip,lan9691-dwc3.yaml  | 68 +++++++++++++++++++
>  1 file changed, 68 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml b/Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml
> new file mode 100644
> index 000000000000..7ffcbbd1e0f4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/microchip,lan9691-dwc3.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/microchip,lan9691-dwc3.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip LAN969x SuperSpeed DWC3 USB SoC controller
> +
> +maintainers:
> +  - Robert Marko <robert.marko@sartura.hr>
> +
> +select:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - microchip,lan9691-dwc3
> +  required:
> +    - compatible
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - microchip,lan9691-dwc3
> +      - const: snps,dwc3
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Gated USB DRD clock
> +      - description: Controller reference clock
> +
> +  clock-names:
> +    items:
> +      - const: bus_early
> +      - const: ref
> +
> +unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +
> +allOf:
> +  - $ref: snps,dwc3.yaml#
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/microchip,lan969x.h>
> +
> +    usb@300000 {
> +      compatible = "microchip,lan9691-dwc3", "snps,dwc3";

AFICT, the examples should be indented by 4 spaces.

> +      reg = <0x300000 0x80000>;
> +      interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> +      clocks = <&clks GCK_GATE_USB_DRD>,
> +               <&clks GCK_ID_USB_REFCLK>;
> +      clock-names = "bus_early", "ref";
> +    };