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Date: Thu, 14 Apr 2022 20:27:14 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Rob Herring <robh@...nel.org>
Cc: netdev@...r.kernel.org, nbd@....name, lorenzo.bianconi@...hat.com,
devicetree@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
pabeni@...hat.com, john@...ozen.org
Subject: Re: [PATCH net-next] dt-bindings: net: mediatek,net: convert to the
json-schema
> On Thu, Apr 14, 2022 at 12:19:28PM +0200, Lorenzo Bianconi wrote:
> > This patch converts the existing mediatek-net.txt binding file
> > in yaml format.
> >
> > Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> > ---
> > .../devicetree/bindings/net/mediatek,net.yaml | 294 ++++++++++++++++++
> > .../devicetree/bindings/net/mediatek-net.txt | 108 -------
> > 2 files changed, 294 insertions(+), 108 deletions(-)
> > create mode 100644 Documentation/devicetree/bindings/net/mediatek,net.yaml
> > delete mode 100644 Documentation/devicetree/bindings/net/mediatek-net.txt
> >
> > diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> > new file mode 100644
> > index 000000000000..6c7696a5b8e7
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> > @@ -0,0 +1,294 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/mediatek,net.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: MediaTek Frame Engine Ethernet controller
> > +
> > +maintainers:
> > + - Lorenzo Bianconi <lorenzo@...nel.org>
> > + - Felix Fietkau <nbd@....name>
> > +
> > +description:
> > + The frame engine ethernet controller can be found on MediaTek SoCs. These SoCs
> > + have dual GMAC ports.
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - mediatek,mt2701-eth
> > + - mediatek,mt7623-eth
> > + - mediatek,mt7622-eth
> > + - mediatek,mt7629-eth
> > + - ralink,rt5350-eth
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + interrupts:
> > + minItems: 3
> > + maxItems: 3
> > +
> > + power-domains:
> > + maxItems: 1
> > +
> > + resets:
> > + maxItems: 1
>
> Is it 1 reset or...
Hi Rob,
looking at mt7623.dtsi, I guess we have 3 reset lines here:
resets:
maxItems: 3
>
> > +
> > + reset-names:
> > + items:
> > + - const: fe
> > + - const: gmac
> > + - const: ppe
>
> ... 3 resets?
>
> > +
> > + mediatek,ethsys:
> > + $ref: /schemas/types.yaml#/definitions/phandle
> > + description:
> > + Phandle to the syscon node that handles the port setup.
> > +
> > + cci-control-port: true
> > +
> > + mediatek,hifsys:
> > + $ref: /schemas/types.yaml#/definitions/phandle
> > + description:
> > + Phandle to the mediatek hifsys controller used to provide various clocks
> > + and reset to the system.
> > +
> > + dma-coherent: true
> > +
> > + mdio-bus:
> > + $ref: mdio.yaml#
> > + unevaluatedProperties: false
> > +
> > + "#address-cells":
> > + const: 1
> > +
> > + "#size-cells":
> > + const: 0
> > +
> > +allOf:
> > + - $ref: "ethernet-controller.yaml#"
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + enum:
> > + - mediatek,mt2701-eth
> > + - mediatek,mt7623-eth
> > + then:
> > + properties:
> > + clocks:
> > + minItems: 4
> > + maxItems: 4
> > +
> > + clock-names:
> > + additionalItems: false
> > + items:
> > + - const: ethif
> > + - const: esw
> > + - const: gp1
> > + - const: gp2
> > +
> > + mediatek,pctl:
> > + $ref: /schemas/types.yaml#/definitions/phandle
> > + description:
> > + Phandle to the syscon node that handles the ports slew rate and
> > + driver current.
> > +
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: mediatek,mt7622-eth
> > + then:
> > + properties:
> > + clocks:
> > + minItems: 11
> > + maxItems: 11
> > +
> > + clock-names:
> > + additionalItems: false
> > + items:
> > + - const: ethif
> > + - const: esw
> > + - const: gp0
> > + - const: gp1
> > + - const: gp2
> > + - const: sgmii_tx250m
> > + - const: sgmii_rx250m
> > + - const: sgmii_cdr_ref
> > + - const: sgmii_cdr_fb
> > + - const: sgmii_ck
> > + - const: eth2pll
> > +
> > + mediatek,sgmiisys:
> > + $ref: /schemas/types.yaml#/definitions/phandle-array
> > + maxItems: 1
> > + description:
> > + A list of phandle to the syscon node that handles the SGMII setup which is required for
> > + those SoCs equipped with SGMII.
> > +
> > + mediatek,wed:
> > + $ref: /schemas/types.yaml#/definitions/phandle-array
> > + minItems: 2
> > + maxItems: 2
> > + description:
> > + List of phandles to wireless ethernet dispatch nodes.
> > +
> > + mediatek,pcie-mirror:
> > + $ref: /schemas/types.yaml#/definitions/phandle
> > + description:
> > + Phandle to the mediatek pcie-mirror controller.
> +
> > + - if:
> > + properties:
> > + compatible:
> > + contains:
> > + const: mediatek,mt7629-eth
> > + then:
> > + properties:
> > + clocks:
> > + minItems: 17
> > + maxItems: 17
> > +
> > + clock-names:
> > + additionalItems: false
> > + items:
> > + - const: ethif
> > + - const: sgmiitop
> > + - const: esw
> > + - const: gp0
> > + - const: gp1
> > + - const: gp2
> > + - const: fe
> > + - const: sgmii_tx250m
> > + - const: sgmii_rx250m
> > + - const: sgmii_cdr_ref
> > + - const: sgmii_cdr_fb
> > + - const: sgmii2_tx250m
> > + - const: sgmii2_rx250m
> > + - const: sgmii2_cdr_ref
> > + - const: sgmii2_cdr_fb
> > + - const: sgmii_ck
> > + - const: eth2pll
> > +
> > + mediatek,infracfg:
> > + $ref: /schemas/types.yaml#/definitions/phandle
> > + description:
> > + Phandle to the syscon node that handles the path from GMAC to
> > + PHY variants.
> > +
> > + mediatek,sgmiisys:
> > + $ref: /schemas/types.yaml#/definitions/phandle-array
> > + maxItems: 2
> > + description:
> > + A list of phandle to the syscon node that handles the SGMII setup which is required for
> > + those SoCs equipped with SGMII.
> > +
> > +patternProperties:
> > + "^mac@[0-1]$":
> > + type: object
> > + additionalProperties: false
> > + allOf:
> > + - $ref: ethernet-controller.yaml#
> > + description:
> > + Ethernet MAC node
> > + properties:
> > + compatible:
> > + const: mediatek,eth-mac
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + phy-handle: true
> > +
> > + phy-mode: true
> > +
> > + required:
> > + - reg
> > + - compatible
> > + - phy-handle
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - interrupts
> > + - clocks
> > + - clock-names
> > + - power-domains
> > + - mediatek,ethsys
> > +
> > +unevaluatedProperties: false
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/interrupt-controller/arm-gic.h>
> > + #include <dt-bindings/interrupt-controller/irq.h>
> > + #include <dt-bindings/clock/mt7622-clk.h>
> > + #include <dt-bindings/power/mt7622-power.h>
> > +
> > + soc {
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > +
> > + ethernet: ethernet@...00000 {
> > + compatible = "mediatek,mt7622-eth";
> > + reg = <0 0x1b100000 0 0x20000>;
> > + interrupts = <GIC_SPI 223 IRQ_TYPE_LEVEL_LOW>,
> > + <GIC_SPI 224 IRQ_TYPE_LEVEL_LOW>,
> > + <GIC_SPI 225 IRQ_TYPE_LEVEL_LOW>;
> > + clocks = <&topckgen CLK_TOP_ETH_SEL>,
> > + <ðsys CLK_ETH_ESW_EN>,
> > + <ðsys CLK_ETH_GP0_EN>,
> > + <ðsys CLK_ETH_GP1_EN>,
> > + <ðsys CLK_ETH_GP2_EN>,
> > + <&sgmiisys CLK_SGMII_TX250M_EN>,
> > + <&sgmiisys CLK_SGMII_RX250M_EN>,
> > + <&sgmiisys CLK_SGMII_CDR_REF>,
> > + <&sgmiisys CLK_SGMII_CDR_FB>,
> > + <&topckgen CLK_TOP_SGMIIPLL>,
> > + <&apmixedsys CLK_APMIXED_ETH2PLL>;
> > + clock-names = "ethif", "esw", "gp0", "gp1", "gp2",
> > + "sgmii_tx250m", "sgmii_rx250m",
> > + "sgmii_cdr_ref", "sgmii_cdr_fb", "sgmii_ck",
> > + "eth2pll";
> > + power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
> > + mediatek,ethsys = <ðsys>;
> > + mediatek,sgmiisys = <&sgmiisys>;
> > + cci-control = <&cci_control2>;
>
> Doesn't match the schema. Did you test this? I didn't because it doesn't
> apply to rc1.
I guess the patch does not apply since there are some commits ([0], [1]) in
the net-next tree not available in Linus's tree yet. I posted this patch for
net-next tree to avoid conflicts, I should hightlight it, sorry for that.
ack, after commit [1] it should be:
cci-control-port = <&cci_control2>;
I tested it running:
$make dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/net/mediatek,net.yaml
Regards,
Lorenzo
[0] 1dafd0d60703 ("dt-bindings: net: mediatek: add optional properties for the SoC ethernet core")
[1] 4263f77a5144 ("net: ethernet: mtk_eth_soc: use standard property for cci-control-port")
>
> > + mediatek,pcie-mirror = <&pcie_mirror>;
> > + mediatek,hifsys = <&hifsys>;
> > + dma-coherent;
> > +
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + mdio0: mdio-bus {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + phy0: ethernet-phy@0 {
> > + reg = <0>;
> > + };
> > +
> > + phy1: ethernet-phy@1 {
> > + reg = <1>;
> > + };
> > + };
> > +
> > + gmac0: mac@0 {
> > + compatible = "mediatek,eth-mac";
> > + phy-mode = "rgmii";
> > + phy-handle = <&phy0>;
> > + reg = <0>;
> > + };
> > +
> > + gmac1: mac@1 {
> > + compatible = "mediatek,eth-mac";
> > + phy-mode = "rgmii";
> > + phy-handle = <&phy1>;
> > + reg = <1>;
> > + };
> > + };
> > + };
> > diff --git a/Documentation/devicetree/bindings/net/mediatek-net.txt b/Documentation/devicetree/bindings/net/mediatek-net.txt
> > deleted file mode 100644
> > index f18d70189375..000000000000
> > --- a/Documentation/devicetree/bindings/net/mediatek-net.txt
> > +++ /dev/null
> > @@ -1,108 +0,0 @@
> > -MediaTek Frame Engine Ethernet controller
> > -=========================================
> > -
> > -The frame engine ethernet controller can be found on MediaTek SoCs. These SoCs
> > -have dual GMAC each represented by a child node..
> > -
> > -* Ethernet controller node
> > -
> > -Required properties:
> > -- compatible: Should be
> > - "mediatek,mt2701-eth": for MT2701 SoC
> > - "mediatek,mt7623-eth", "mediatek,mt2701-eth": for MT7623 SoC
> > - "mediatek,mt7622-eth": for MT7622 SoC
> > - "mediatek,mt7629-eth": for MT7629 SoC
> > - "ralink,rt5350-eth": for Ralink Rt5350F and MT7628/88 SoC
> > -- reg: Address and length of the register set for the device
> > -- interrupts: Should contain the three frame engines interrupts in numeric
> > - order. These are fe_int0, fe_int1 and fe_int2.
> > -- clocks: the clock used by the core
> > -- clock-names: the names of the clock listed in the clocks property. These are
> > - "ethif", "esw", "gp2", "gp1" : For MT2701 and MT7623 SoC
> > - "ethif", "esw", "gp0", "gp1", "gp2", "sgmii_tx250m", "sgmii_rx250m",
> > - "sgmii_cdr_ref", "sgmii_cdr_fb", "sgmii_ck", "eth2pll" : For MT7622 SoC
> > - "ethif", "sgmiitop", "esw", "gp0", "gp1", "gp2", "fe", "sgmii_tx250m",
> > - "sgmii_rx250m", "sgmii_cdr_ref", "sgmii_cdr_fb", "sgmii2_tx250m",
> > - "sgmii2_rx250m", "sgmii2_cdr_ref", "sgmii2_cdr_fb", "sgmii_ck",
> > - "eth2pll" : For MT7629 SoC.
> > -- power-domains: phandle to the power domain that the ethernet is part of
> > -- resets: Should contain phandles to the ethsys reset signals
> > -- reset-names: Should contain the names of reset signal listed in the resets
> > - property
> > - These are "fe", "gmac" and "ppe"
> > -- mediatek,ethsys: phandle to the syscon node that handles the port setup
> > -- mediatek,infracfg: phandle to the syscon node that handles the path from
> > - GMAC to PHY variants, which is required for MT7629 SoC.
> > -- mediatek,sgmiisys: a list of phandles to the syscon node that handles the
> > - SGMII setup which is required for those SoCs equipped with SGMII such
> > - as MT7622 and MT7629 SoC. And MT7622 have only one set of SGMII shared
> > - by GMAC1 and GMAC2; MT7629 have two independent sets of SGMII directed
> > - to GMAC1 and GMAC2, respectively.
> > -- mediatek,pctl: phandle to the syscon node that handles the ports slew rate
> > - and driver current: only for MT2701 and MT7623 SoC
> > -
> > -Optional properties:
> > -- dma-coherent: present if dma operations are coherent
> > -- mediatek,cci-control: phandle to the cache coherent interconnect node
> > -- mediatek,hifsys: phandle to the mediatek hifsys controller used to provide
> > - various clocks and reset to the system.
> > -- mediatek,wed: a list of phandles to wireless ethernet dispatch nodes for
> > - MT7622 SoC.
> > -- mediatek,pcie-mirror: phandle to the mediatek pcie-mirror controller for
> > - MT7622 SoC.
> > -
> > -* Ethernet MAC node
> > -
> > -Required properties:
> > -- compatible: Should be "mediatek,eth-mac"
> > -- reg: The number of the MAC
> > -- phy-handle: see ethernet.txt file in the same directory and
> > - the phy-mode "trgmii" required being provided when reg
> > - is equal to 0 and the MAC uses fixed-link to connect
> > - with internal switch such as MT7530.
> > -
> > -Example:
> > -
> > -eth: ethernet@...00000 {
> > - compatible = "mediatek,mt7623-eth";
> > - reg = <0 0x1b100000 0 0x20000>;
> > - clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
> > - <ðsys CLK_ETHSYS_ESW>,
> > - <ðsys CLK_ETHSYS_GP2>,
> > - <ðsys CLK_ETHSYS_GP1>;
> > - clock-names = "ethif", "esw", "gp2", "gp1";
> > - interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW
> > - GIC_SPI 199 IRQ_TYPE_LEVEL_LOW
> > - GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
> > - power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
> > - resets = <ðsys MT2701_ETHSYS_ETH_RST>;
> > - reset-names = "eth";
> > - mediatek,ethsys = <ðsys>;
> > - mediatek,pctl = <&syscfg_pctl_a>;
> > - #address-cells = <1>;
> > - #size-cells = <0>;
> > -
> > - gmac1: mac@0 {
> > - compatible = "mediatek,eth-mac";
> > - reg = <0>;
> > - phy-handle = <&phy0>;
> > - };
> > -
> > - gmac2: mac@1 {
> > - compatible = "mediatek,eth-mac";
> > - reg = <1>;
> > - phy-handle = <&phy1>;
> > - };
> > -
> > - mdio-bus {
> > - phy0: ethernet-phy@0 {
> > - reg = <0>;
> > - phy-mode = "rgmii";
> > - };
> > -
> > - phy1: ethernet-phy@1 {
> > - reg = <1>;
> > - phy-mode = "rgmii";
> > - };
> > - };
> > -};
> > --
> > 2.35.1
> >
> >
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