diff mbox series

[RFC,v3,1/8] dt-bindings: net: sparx5: Add sparx5-switch bindings

Message ID 20210115135339.3127198-2-steen.hegelund@microchip.com (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series Adding the Sparx5 Switch Driver | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Steen Hegelund Jan. 15, 2021, 1:53 p.m. UTC
Document the Sparx5 switch device driver bindings

Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
---
 .../bindings/net/microchip,sparx5-switch.yaml | 211 ++++++++++++++++++
 1 file changed, 211 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml

Comments

Rob Herring (Arm) Jan. 15, 2021, 3:39 p.m. UTC | #1
On Fri, 15 Jan 2021 14:53:32 +0100, Steen Hegelund wrote:
> Document the Sparx5 switch device driver bindings
> 
> Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
> Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
> ---
>  .../bindings/net/microchip,sparx5-switch.yaml | 211 ++++++++++++++++++
>  1 file changed, 211 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:
./Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml:92:16: [warning] wrong indentation: expected 14 but found 15 (indentation)

dtschema/dtc warnings/errors:

See https://patchwork.ozlabs.org/patch/1427023

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.
Rob Herring (Arm) Jan. 15, 2021, 4:04 p.m. UTC | #2
On Fri, Jan 15, 2021 at 02:53:32PM +0100, Steen Hegelund wrote:
> Document the Sparx5 switch device driver bindings
> 
> Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
> Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
> ---
>  .../bindings/net/microchip,sparx5-switch.yaml | 211 ++++++++++++++++++
>  1 file changed, 211 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
> new file mode 100644
> index 000000000000..479a36874fe5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
> @@ -0,0 +1,211 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/microchip,sparx5-switch.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Microchip Sparx5 Ethernet switch controller
> +
> +maintainers:
> +  - Lars Povlsen <lars.povlsen@microchip.com>
> +  - Steen Hegelund <steen.hegelund@microchip.com>
> +
> +description: |
> +  The SparX-5 Enterprise Ethernet switch family provides a rich set of
> +  Enterprise switching features such as advanced TCAM-based VLAN and
> +  QoS processing enabling delivery of differentiated services, and
> +  security through TCAM-based frame processing using versatile content
> +  aware processor (VCAP).
> +
> +  IPv4/IPv6 Layer 3 (L3) unicast and multicast routing is supported
> +  with up to 18K IPv4/9K IPv6 unicast LPM entries and up to 9K IPv4/3K
> +  IPv6 (S,G) multicast groups.
> +
> +  L3 security features include source guard and reverse path
> +  forwarding (uRPF) tasks. Additional L3 features include VRF-Lite and
> +  IP tunnels (IP over GRE/IP).
> +
> +  The SparX-5 switch family targets managed Layer 2 and Layer 3
> +  equipment in SMB, SME, and Enterprise where high port count
> +  1G/2.5G/5G/10G switching with 10G/25G aggregation links is required.
> +
> +properties:
> +  $nodename:
> +    pattern: "^switch@[0-9a-f]+$"
> +
> +  compatible:
> +    const: microchip,sparx5-switch
> +
> +  reg:
> +    minItems: 2
> +
> +  reg-names:
> +    items:
> +      - const: devices
> +      - const: gcb
> +
> +  interrupts:
> +    maxItems: 1
> +    description: Interrupt used for reception of packets to the CPU
> +
> +  mac-address:
> +    maxItems: 1

The MAC address is 1 byte?

> +    description:
> +      Specifies the MAC address that is used as the template for the MAC
> +      addresses assigned to the ports provided by the driver.  If not provided
> +      a randomly generated MAC address will be used.
> +
> +  ethernet-ports:
> +    type: object
> +    properties:
> +      '#address-cells':
> +        const: 1
> +      '#size-cells':
> +        const: 0
> +
> +    patternProperties:
> +      "^port@[0-9]+$":

Unit-addresses are hex.

> +        type: object
> +        description: Switch ports
> +
> +        allOf:
> +          - $ref: ethernet-controller.yaml#
> +
> +        properties:
> +          reg:
> +            description: Switch port number
> +
> +          bandwidth:

Needs a vendor prefix.

> +            maxItems: 1

Not an array. Drop.

> +            $ref: /schemas/types.yaml#definitions/uint32
> +            description: Specifies bandwidth in Mbit/s allocated to the port.

0-2^32 allowed?

> +
> +          phys:
> +            maxItems: 1
> +            description:
> +              phandle of a Ethernet SerDes PHY.  This defines which SerDes
> +              instance will handle the Ethernet traffic.
> +
> +          phy-handle:
> +            maxItems: 1

Always a single item. (Note phys is not, so that's correct.)

> +            description:
> +               phandle of a Ethernet PHY.  This is optional and if provided it
> +               points to the cuPHY used by the Ethernet SerDes.
> +
> +          phy-mode:
> +            maxItems: 1

Not an array. Drop.

I'd assume it's some subset of modes?

> +            description:
> +              This specifies the interface used by the Ethernet SerDes towards the
> +              phy or SFP.
> +
> +          sfp:
> +            maxItems: 1

'sfp' is already defined as a single item. Drop

> +            description:
> +              phandle of an SFP.  This is optional and used when not specifying
> +              a cuPHY.  It points to the SFP node that describes the SFP used by
> +              the Ethernet SerDes.
> +
> +          managed:
> +            maxItems: 1
> +            description:
> +              SFP management. This must be provided when specifying an SFP.

'managed: true' is sufficient. It's already described in 
ethernet-controller.yaml and the schema expresses the 2nd sentence.

> +
> +          sd_sgpio:

Vendor specific? Then needs a vendor prefix.

s/_/-/

> +            $ref: /schemas/types.yaml#/definitions/uint32
> +            maxItems: 1

A uint32 is always 1 item. Drop.

> +            description:
> +              Index of the ports Signal Detect SGPIO in the set of 384 SGPIOs
> +              This is optional, and only needed if the default used index is
> +              is not correct.

Sounds like constraints?:

minimum: 0
maximum: 383

> +
> +        required:
> +          - reg
> +          - bandwidth
> +          - phys
> +          - phy-mode
> +
> +        oneOf:
> +          - required:
> +              - phy-handle
> +          - required:
> +              - sfp
> +              - managed
> +
> +        additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - interrupts
> +  - ethernet-ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    switch: switch@600000000 {
> +      compatible = "microchip,sparx5-switch";
> +      reg =  <0x10000000 0x800000>,
> +             <0x11010000 0x1b00000>;
> +      reg-names = "devices", "gcb";
> +
> +      interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
> +      ethernet-ports {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        port0: port@0 {
> +          reg = <0>;
> +          bandwidth = <1000>;
> +          phys = <&serdes 13>;
> +          phy-handle = <&phy0>;
> +          phy-mode = "qsgmii";
> +        };
> +        /* ... */
> +        /* Then the 25G interfaces */
> +        port60: port@60 {
> +          reg = <60>;
> +          bandwidth = <25000>;
> +          phys = <&serdes 29>;
> +          phy-mode = "10gbase-r";
> +          sfp = <&sfp_eth60>;
> +          managed = "in-band-status";
> +        };
> +        port61: port@61 {
> +          reg = <61>;
> +          bandwidth = <25000>;
> +          phys = <&serdes 30>;
> +          phy-mode = "10gbase-r";
> +          sfp = <&sfp_eth61>;
> +          managed = "in-band-status";
> +        };
> +        port62: port@62 {
> +          reg = <62>;
> +          bandwidth = <25000>;
> +          phys = <&serdes 31>;
> +          phy-mode = "10gbase-r";
> +          sfp = <&sfp_eth62>;
> +          managed = "in-band-status";
> +        };
> +        port63: port@63 {
> +          reg = <63>;
> +          bandwidth = <25000>;
> +          phys = <&serdes 32>;
> +          phy-mode = "10gbase-r";
> +          sfp = <&sfp_eth63>;
> +          managed = "in-band-status";
> +        };
> +        /* Finally the Management interface */
> +        port64: port@64 {
> +          reg = <64>;
> +          bandwidth = <1000>;
> +          phys = <&serdes 0>;
> +          phy-handle = <&phy64>;
> +          phy-mode = "sgmii";
> +        };
> +      };
> +    };
> +
> +...
> -- 
> 2.29.2
>
Steen Hegelund Jan. 15, 2021, 4:34 p.m. UTC | #3
Hi Rob,

On Fri, 2021-01-15 at 10:04 -0600, Rob Herring wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
> 
> On Fri, Jan 15, 2021 at 02:53:32PM +0100, Steen Hegelund wrote:
> > Document the Sparx5 switch device driver bindings
> > 
> > Signed-off-by: Steen Hegelund <steen.hegelund@microchip.com>
> > Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
> > ---
> >  .../bindings/net/microchip,sparx5-switch.yaml | 211
> > ++++++++++++++++++
> >  1 file changed, 211 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/net/microchip,sparx5-
> > switch.yaml
> > b/Documentation/devicetree/bindings/net/microchip,sparx5-
> > switch.yaml
> > new file mode 100644
> > index 000000000000..479a36874fe5
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/microchip,sparx5-
> > switch.yaml
> > @@ -0,0 +1,211 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id:   
> > http://devicetree.org/schemas/net/microchip,sparx5-switch.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Microchip Sparx5 Ethernet switch controller
> > +
> > +maintainers:
> > +  - Lars Povlsen <lars.povlsen@microchip.com>
> > +  - Steen Hegelund <steen.hegelund@microchip.com>
> > +
> > +description: |
> > +  The SparX-5 Enterprise Ethernet switch family provides a rich
> > set of
> > +  Enterprise switching features such as advanced TCAM-based VLAN
> > and
> > +  QoS processing enabling delivery of differentiated services, and
> > +  security through TCAM-based frame processing using versatile
> > content
> > +  aware processor (VCAP).
> > +
> > +  IPv4/IPv6 Layer 3 (L3) unicast and multicast routing is
> > supported
> > +  with up to 18K IPv4/9K IPv6 unicast LPM entries and up to 9K
> > IPv4/3K
> > +  IPv6 (S,G) multicast groups.
> > +
> > +  L3 security features include source guard and reverse path
> > +  forwarding (uRPF) tasks. Additional L3 features include VRF-Lite
> > and
> > +  IP tunnels (IP over GRE/IP).
> > +
> > +  The SparX-5 switch family targets managed Layer 2 and Layer 3
> > +  equipment in SMB, SME, and Enterprise where high port count
> > +  1G/2.5G/5G/10G switching with 10G/25G aggregation links is
> > required.
> > +
> > +properties:
> > +  $nodename:
> > +    pattern: "^switch@[0-9a-f]+$"
> > +
> > +  compatible:
> > +    const: microchip,sparx5-switch
> > +
> > +  reg:
> > +    minItems: 2
> > +
> > +  reg-names:
> > +    items:
> > +      - const: devices
> > +      - const: gcb
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +    description: Interrupt used for reception of packets to the
> > CPU
> > +
> > +  mac-address:
> > +    maxItems: 1
> 
> The MAC address is 1 byte?

So this is a byte array?

    $ref: /schemas/types.yaml#/definitions/uint8-array
    items:
      - minItems: 6
        maxItems: 6


> 
> > +    description:
> > +      Specifies the MAC address that is used as the template for
> > the MAC
> > +      addresses assigned to the ports provided by the driver.  If
> > not provided
> > +      a randomly generated MAC address will be used.
> > +
> > +  ethernet-ports:
> > +    type: object
> > +    properties:
> > +      '#address-cells':
> > +        const: 1
> > +      '#size-cells':
> > +        const: 0
> > +
> > +    patternProperties:
> > +      "^port@[0-9]+$":
> 
> Unit-addresses are hex.

Yes. I will change that...

> 
> > +        type: object
> > +        description: Switch ports
> > +
> > +        allOf:
> > +          - $ref: ethernet-controller.yaml#
> > +
> > +        properties:
> > +          reg:
> > +            description: Switch port number
> > +
> > +          bandwidth:
> 
> Needs a vendor prefix.

OK, I will add that.

> 
> > +            maxItems: 1
> 
> Not an array. Drop.

OK - I am totally clear on the usage of maxItems.  This is only
intended for arrays, and for single values I should omit any
min/maxItems?

> 
> > +            $ref: /schemas/types.yaml#definitions/uint32
> > +            description: Specifies bandwidth in Mbit/s allocated
> > to the port.
> 
> 0-2^32 allowed?

How can I add limit?
I did not succeed using minimum/maximum (see below)...

> 
> > +
> > +          phys:
> > +            maxItems: 1
> > +            description:
> > +              phandle of a Ethernet SerDes PHY.  This defines
> > which SerDes
> > +              instance will handle the Ethernet traffic.
> > +
> > +          phy-handle:
> > +            maxItems: 1
> 
> Always a single item. (Note phys is not, so that's correct.)

So no maxItems for single instance items?

> 
> > +            description:
> > +               phandle of a Ethernet PHY.  This is optional and if
> > provided it
> > +               points to the cuPHY used by the Ethernet SerDes.
> > +
> > +          phy-mode:
> > +            maxItems: 1
> 
> Not an array. Drop.

Hmmm, I really misunderstood this...

> 
> I'd assume it's some subset of modes?
> 
> > +            description:
> > +              This specifies the interface used by the Ethernet
> > SerDes towards the
> > +              phy or SFP.
> > +
> > +          sfp:
> > +            maxItems: 1
> 
> 'sfp' is already defined as a single item. Drop

OK

> 
> > +            description:
> > +              phandle of an SFP.  This is optional and used when
> > not specifying
> > +              a cuPHY.  It points to the SFP node that describes
> > the SFP used by
> > +              the Ethernet SerDes.
> > +
> > +          managed:
> > +            maxItems: 1
> > +            description:
> > +              SFP management. This must be provided when
> > specifying an SFP.
> 
> 'managed: true' is sufficient. It's already described in
> ethernet-controller.yaml and the schema expresses the 2nd sentence.

OK.

> 
> > +
> > +          sd_sgpio:
> 
> Vendor specific? Then needs a vendor prefix.

Yes, I will add a prefix.

> 
> s/_/-/

Oops - yes.

> 
> > +            $ref: /schemas/types.yaml#/definitions/uint32
> > +            maxItems: 1
> 
> A uint32 is always 1 item. Drop.

OK

> 
> > +            description:
> > +              Index of the ports Signal Detect SGPIO in the set of
> > 384 SGPIOs
> > +              This is optional, and only needed if the default
> > used index is
> > +              is not correct.
> 
> Sounds like constraints?:
> 
> minimum: 0
> maximum: 383

I tried adding minimum and maximum, but I got an error from the
validation tool:

Ignoring, error in schema: properties: ethernet-ports:
patternProperties: ^port@[0-9]+$: properties: sd_sgpio: maximum

So what is the syntax for this?

> 
> > +
> > +        required:
> > +          - reg
> > +          - bandwidth
> > +          - phys
> > +          - phy-mode
> > +
> > +        oneOf:
> > +          - required:
> > +              - phy-handle
> > +          - required:
> > +              - sfp
> > +              - managed
> > +
> > +        additionalProperties: false
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - reg-names
> > +  - interrupts
> > +  - ethernet-ports
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    switch: switch@600000000 {
> > +      compatible = "microchip,sparx5-switch";
> > +      reg =  <0x10000000 0x800000>,
> > +             <0x11010000 0x1b00000>;
> > +      reg-names = "devices", "gcb";
> > +
> > +      interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
> > +      ethernet-ports {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        port0: port@0 {
> > +          reg = <0>;
> > +          bandwidth = <1000>;
> > +          phys = <&serdes 13>;
> > +          phy-handle = <&phy0>;
> > +          phy-mode = "qsgmii";
> > +        };
> > +        /* ... */
> > +        /* Then the 25G interfaces */
> > +        port60: port@60 {
> > +          reg = <60>;
> > +          bandwidth = <25000>;
> > +          phys = <&serdes 29>;
> > +          phy-mode = "10gbase-r";
> > +          sfp = <&sfp_eth60>;
> > +          managed = "in-band-status";
> > +        };
> > +        port61: port@61 {
> > +          reg = <61>;
> > +          bandwidth = <25000>;
> > +          phys = <&serdes 30>;
> > +          phy-mode = "10gbase-r";
> > +          sfp = <&sfp_eth61>;
> > +          managed = "in-band-status";
> > +        };
> > +        port62: port@62 {
> > +          reg = <62>;
> > +          bandwidth = <25000>;
> > +          phys = <&serdes 31>;
> > +          phy-mode = "10gbase-r";
> > +          sfp = <&sfp_eth62>;
> > +          managed = "in-band-status";
> > +        };
> > +        port63: port@63 {
> > +          reg = <63>;
> > +          bandwidth = <25000>;
> > +          phys = <&serdes 32>;
> > +          phy-mode = "10gbase-r";
> > +          sfp = <&sfp_eth63>;
> > +          managed = "in-band-status";
> > +        };
> > +        /* Finally the Management interface */
> > +        port64: port@64 {
> > +          reg = <64>;
> > +          bandwidth = <1000>;
> > +          phys = <&serdes 0>;
> > +          phy-handle = <&phy64>;
> > +          phy-mode = "sgmii";
> > +        };
> > +      };
> > +    };
> > +
> > +...
> > --
> > 2.29.2
> > 

Thanks for your comments - I still have a bit of learning to do
clearly...

BR
Steen
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
new file mode 100644
index 000000000000..479a36874fe5
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
@@ -0,0 +1,211 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/microchip,sparx5-switch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip Sparx5 Ethernet switch controller
+
+maintainers:
+  - Lars Povlsen <lars.povlsen@microchip.com>
+  - Steen Hegelund <steen.hegelund@microchip.com>
+
+description: |
+  The SparX-5 Enterprise Ethernet switch family provides a rich set of
+  Enterprise switching features such as advanced TCAM-based VLAN and
+  QoS processing enabling delivery of differentiated services, and
+  security through TCAM-based frame processing using versatile content
+  aware processor (VCAP).
+
+  IPv4/IPv6 Layer 3 (L3) unicast and multicast routing is supported
+  with up to 18K IPv4/9K IPv6 unicast LPM entries and up to 9K IPv4/3K
+  IPv6 (S,G) multicast groups.
+
+  L3 security features include source guard and reverse path
+  forwarding (uRPF) tasks. Additional L3 features include VRF-Lite and
+  IP tunnels (IP over GRE/IP).
+
+  The SparX-5 switch family targets managed Layer 2 and Layer 3
+  equipment in SMB, SME, and Enterprise where high port count
+  1G/2.5G/5G/10G switching with 10G/25G aggregation links is required.
+
+properties:
+  $nodename:
+    pattern: "^switch@[0-9a-f]+$"
+
+  compatible:
+    const: microchip,sparx5-switch
+
+  reg:
+    minItems: 2
+
+  reg-names:
+    items:
+      - const: devices
+      - const: gcb
+
+  interrupts:
+    maxItems: 1
+    description: Interrupt used for reception of packets to the CPU
+
+  mac-address:
+    maxItems: 1
+    description:
+      Specifies the MAC address that is used as the template for the MAC
+      addresses assigned to the ports provided by the driver.  If not provided
+      a randomly generated MAC address will be used.
+
+  ethernet-ports:
+    type: object
+    properties:
+      '#address-cells':
+        const: 1
+      '#size-cells':
+        const: 0
+
+    patternProperties:
+      "^port@[0-9]+$":
+        type: object
+        description: Switch ports
+
+        allOf:
+          - $ref: ethernet-controller.yaml#
+
+        properties:
+          reg:
+            description: Switch port number
+
+          bandwidth:
+            maxItems: 1
+            $ref: /schemas/types.yaml#definitions/uint32
+            description: Specifies bandwidth in Mbit/s allocated to the port.
+
+          phys:
+            maxItems: 1
+            description:
+              phandle of a Ethernet SerDes PHY.  This defines which SerDes
+              instance will handle the Ethernet traffic.
+
+          phy-handle:
+            maxItems: 1
+            description:
+               phandle of a Ethernet PHY.  This is optional and if provided it
+               points to the cuPHY used by the Ethernet SerDes.
+
+          phy-mode:
+            maxItems: 1
+            description:
+              This specifies the interface used by the Ethernet SerDes towards the
+              phy or SFP.
+
+          sfp:
+            maxItems: 1
+            description:
+              phandle of an SFP.  This is optional and used when not specifying
+              a cuPHY.  It points to the SFP node that describes the SFP used by
+              the Ethernet SerDes.
+
+          managed:
+            maxItems: 1
+            description:
+              SFP management. This must be provided when specifying an SFP.
+
+          sd_sgpio:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            maxItems: 1
+            description:
+              Index of the ports Signal Detect SGPIO in the set of 384 SGPIOs
+              This is optional, and only needed if the default used index is
+              is not correct.
+
+        required:
+          - reg
+          - bandwidth
+          - phys
+          - phy-mode
+
+        oneOf:
+          - required:
+              - phy-handle
+          - required:
+              - sfp
+              - managed
+
+        additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - ethernet-ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    switch: switch@600000000 {
+      compatible = "microchip,sparx5-switch";
+      reg =  <0x10000000 0x800000>,
+             <0x11010000 0x1b00000>;
+      reg-names = "devices", "gcb";
+
+      interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+      ethernet-ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port0: port@0 {
+          reg = <0>;
+          bandwidth = <1000>;
+          phys = <&serdes 13>;
+          phy-handle = <&phy0>;
+          phy-mode = "qsgmii";
+        };
+        /* ... */
+        /* Then the 25G interfaces */
+        port60: port@60 {
+          reg = <60>;
+          bandwidth = <25000>;
+          phys = <&serdes 29>;
+          phy-mode = "10gbase-r";
+          sfp = <&sfp_eth60>;
+          managed = "in-band-status";
+        };
+        port61: port@61 {
+          reg = <61>;
+          bandwidth = <25000>;
+          phys = <&serdes 30>;
+          phy-mode = "10gbase-r";
+          sfp = <&sfp_eth61>;
+          managed = "in-band-status";
+        };
+        port62: port@62 {
+          reg = <62>;
+          bandwidth = <25000>;
+          phys = <&serdes 31>;
+          phy-mode = "10gbase-r";
+          sfp = <&sfp_eth62>;
+          managed = "in-band-status";
+        };
+        port63: port@63 {
+          reg = <63>;
+          bandwidth = <25000>;
+          phys = <&serdes 32>;
+          phy-mode = "10gbase-r";
+          sfp = <&sfp_eth63>;
+          managed = "in-band-status";
+        };
+        /* Finally the Management interface */
+        port64: port@64 {
+          reg = <64>;
+          bandwidth = <1000>;
+          phys = <&serdes 0>;
+          phy-handle = <&phy64>;
+          phy-mode = "sgmii";
+        };
+      };
+    };
+
+...