[net-next v6 1/7] dt-bindings: net: Add MTIP L2 switch description

Lukasz Majewski lukma at denx.de
Fri Apr 18 02:01:16 PDT 2025


Hi Stefan,

> Am 18.04.25 um 08:07 schrieb Lukasz Majewski:
> > This patch provides description of the MTIP L2 switch available in
> > some NXP's SOCs - e.g. imx287.
> >
> > Signed-off-by: Lukasz Majewski <lukma at denx.de>
> > ---
> > Changes for v2:
> > - Rename the file to match exactly the compatible
> >    (nxp,imx287-mtip-switch)
> >
> > Changes for v3:
> > - Remove '-' from const:'nxp,imx287-mtip-switch'
> > - Use '^port@[12]+$' for port patternProperties
> > - Drop status = "okay";
> > - Provide proper indentation for 'example' binding (replace 8
> >    spaces with 4 spaces)
> > - Remove smsc,disable-energy-detect; property
> > - Remove interrupt-parent and interrupts properties as not required
> > - Remove #address-cells and #size-cells from required properties
> > check
> > - remove description from reg:
> > - Add $ref: ethernet-switch.yaml#
> >
> > Changes for v4:
> > - Use $ref: ethernet-switch.yaml#/$defs/ethernet-ports and remove
> > already referenced properties
> > - Rename file to nxp,imx28-mtip-switch.yaml
> >
> > Changes for v5:
> > - Provide proper description for 'ethernet-port' node
> >
> > Changes for v6:
> > - Proper usage of
> >    $ref:
> > ethernet-switch.yaml#/$defs/ethernet-ports/patternProperties when
> > specifying the 'ethernet-ports' property
> > - Add description and check for interrupt-names property
> > ---
> >   .../bindings/net/nxp,imx28-mtip-switch.yaml   | 148
> > ++++++++++++++++++ 1 file changed, 148 insertions(+)
> >   create mode 100644
> > Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > new file mode 100644 index 000000000000..3e2d724074d5 --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/net/nxp,imx28-mtip-switch.yaml
> > @@ -0,0 +1,148 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR
> > BSD-2-Clause) +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/nxp,imx28-mtip-switch.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: NXP SoC Ethernet Switch Controller (L2 MoreThanIP switch)
> > +
> > +maintainers:
> > +  - Lukasz Majewski <lukma at denx.de>
> > +
> > +description:
> > +  The 2-port switch ethernet subsystem provides ethernet packet
> > (L2)
> > +  communication and can be configured as an ethernet switch. It
> > provides the
> > +  reduced media independent interface (RMII), the management data
> > input
> > +  output (MDIO) for physical layer device (PHY) management.
> > +
> > +properties:
> > +  compatible:
> > +    const: nxp,imx28-mtip-switch
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  phy-supply:
> > +    description:
> > +      Regulator that powers Ethernet PHYs.
> > +
> > +  clocks:
> > +    items:
> > +      - description: Register accessing clock
> > +      - description: Bus access clock
> > +      - description: Output clock for external device - e.g. PHY
> > source clock
> > +      - description: IEEE1588 timer clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: ipg
> > +      - const: ahb
> > +      - const: enet_out
> > +      - const: ptp
> > +
> > +  interrupts:
> > +    items:
> > +      - description: Switch interrupt
> > +      - description: ENET0 interrupt
> > +      - description: ENET1 interrupt
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: mtipl2sw  
> Sorry for nitpicking, but could we name it similiar to something from 
> the i.MX28 reference manual like "switch" or "enet_switch"

I think that "enet_switch" may be OK.


Best regards,

Lukasz Majewski

--

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Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
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