| Message ID | 20241028-upstream_s32cc_gmac-v4-13-03618f10e3e2@oss.nxp.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for Synopsis DWMAC IP on NXP Automotive SoCs S32G2xx/S32G3xx/S32R45 | expand |
On Mon, Oct 28, 2024 at 09:24:55PM +0100, Jan Petrous (OSS) wrote: > Add basic description for DWMAC ethernet IP on NXP S32G2xx, S32G3xx > and S32R45 automotive series SoCs. > > Signed-off-by: Jan Petrous (OSS) <jan.petrous@oss.nxp.com> > --- > .../devicetree/bindings/net/nxp,s32-dwmac.yaml | 98 ++++++++++++++++++++++ > .../devicetree/bindings/net/snps,dwmac.yaml | 3 + > 2 files changed, 101 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml > new file mode 100644 > index 000000000000..b11ba3bc4c52 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml > @@ -0,0 +1,98 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +# Copyright 2021-2024 NXP > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/nxp,s32-dwmac.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: NXP S32G2xx/S32G3xx/S32R45 GMAC ethernet controller > + > +maintainers: > + - Jan Petrous (OSS) <jan.petrous@oss.nxp.com> > + > +description: > + This device is a Synopsys DWC IP, integrated on NXP S32G/R SoCs. > + > +properties: > + compatible: > + enum: > + - nxp,s32g2-dwmac > + - nxp,s32g3-dwmac > + - nxp,s32r-dwmac Your driver says these are fully compatible, why this is not expressed here? > + > + reg: > + items: > + - description: Main GMAC registers > + - description: GMAC PHY mode control register > ... > + mdio { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "snps,dwmac-mdio"; > + > + phy0: ethernet-phy@0 { > + reg = <0>; Messed indentation. Keep it consistent. Best regards, Krzysztof
On Tue, Oct 29, 2024 at 08:12:37AM +0100, Krzysztof Kozlowski wrote: > On Mon, Oct 28, 2024 at 09:24:55PM +0100, Jan Petrous (OSS) wrote: > > Add basic description for DWMAC ethernet IP on NXP S32G2xx, S32G3xx > > and S32R45 automotive series SoCs. > > > > Signed-off-by: Jan Petrous (OSS) <jan.petrous@oss.nxp.com> > > --- > > .../devicetree/bindings/net/nxp,s32-dwmac.yaml | 98 ++++++++++++++++++++++ > > .../devicetree/bindings/net/snps,dwmac.yaml | 3 + > > 2 files changed, 101 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml > > new file mode 100644 > > index 000000000000..b11ba3bc4c52 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml > > @@ -0,0 +1,98 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +# Copyright 2021-2024 NXP > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/net/nxp,s32-dwmac.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: NXP S32G2xx/S32G3xx/S32R45 GMAC ethernet controller > > + > > +maintainers: > > + - Jan Petrous (OSS) <jan.petrous@oss.nxp.com> > > + > > +description: > > + This device is a Synopsys DWC IP, integrated on NXP S32G/R SoCs. > > + > > +properties: > > + compatible: > > + enum: > > + - nxp,s32g2-dwmac > > + - nxp,s32g3-dwmac > > + - nxp,s32r-dwmac > > Your driver says these are fully compatible, why this is not expressed > here? > They are compatible on current stage of driver implementation, the RGMII interface has no any difference. But later there shall be added SGMII and this provides some level of difference, at least from max-speed POV. The S32R allows higher speed (2G5) on SGMII, but S32G2/S32G3 has 1G as maximum. > > + > > + reg: > > + items: > > + - description: Main GMAC registers > > + - description: GMAC PHY mode control register > > > > ... > > > + mdio { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + compatible = "snps,dwmac-mdio"; > > + > > + phy0: ethernet-phy@0 { > > + reg = <0>; > > Messed indentation. Keep it consistent. > Thanks. I will fix it in v5. > Best regards, > Krzysztof >
> They are compatible on current stage of driver implementation, the > RGMII interface has no any difference. But later there shall be > added SGMII and this provides some level of difference, at least > from max-speed POV. > > The S32R allows higher speed (2G5) on SGMII, but S32G2/S32G3 has > 1G as maximum. Please be careful with your naming. SGMII is defined by CISCO to only support 10/100/1000Mbps. If you support more than 1G, it is not SGMII, it is likely to be 2500BaseX, etc. Andrew
On 31/10/2024 15:29, Jan Petrous wrote: > On Tue, Oct 29, 2024 at 08:12:37AM +0100, Krzysztof Kozlowski wrote: >> On Mon, Oct 28, 2024 at 09:24:55PM +0100, Jan Petrous (OSS) wrote: >>> Add basic description for DWMAC ethernet IP on NXP S32G2xx, S32G3xx >>> and S32R45 automotive series SoCs. >>> >>> Signed-off-by: Jan Petrous (OSS) <jan.petrous@oss.nxp.com> >>> --- >>> .../devicetree/bindings/net/nxp,s32-dwmac.yaml | 98 ++++++++++++++++++++++ >>> .../devicetree/bindings/net/snps,dwmac.yaml | 3 + >>> 2 files changed, 101 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml >>> new file mode 100644 >>> index 000000000000..b11ba3bc4c52 >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml >>> @@ -0,0 +1,98 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +# Copyright 2021-2024 NXP >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/net/nxp,s32-dwmac.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: NXP S32G2xx/S32G3xx/S32R45 GMAC ethernet controller >>> + >>> +maintainers: >>> + - Jan Petrous (OSS) <jan.petrous@oss.nxp.com> >>> + >>> +description: >>> + This device is a Synopsys DWC IP, integrated on NXP S32G/R SoCs. >>> + >>> +properties: >>> + compatible: >>> + enum: >>> + - nxp,s32g2-dwmac >>> + - nxp,s32g3-dwmac >>> + - nxp,s32r-dwmac >> >> Your driver says these are fully compatible, why this is not expressed >> here? >> > > They are compatible on current stage of driver implementation, the > RGMII interface has no any difference. But later there shall be > added SGMII and this provides some level of difference, at least > from max-speed POV. > > The S32R allows higher speed (2G5) on SGMII, but S32G2/S32G3 has > 1G as maximum. So G2/G3 will work just fine but with lower speeds? That's the meaning of compatibility. Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml new file mode 100644 index 000000000000..b11ba3bc4c52 --- /dev/null +++ b/Documentation/devicetree/bindings/net/nxp,s32-dwmac.yaml @@ -0,0 +1,98 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright 2021-2024 NXP +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/nxp,s32-dwmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP S32G2xx/S32G3xx/S32R45 GMAC ethernet controller + +maintainers: + - Jan Petrous (OSS) <jan.petrous@oss.nxp.com> + +description: + This device is a Synopsys DWC IP, integrated on NXP S32G/R SoCs. + +properties: + compatible: + enum: + - nxp,s32g2-dwmac + - nxp,s32g3-dwmac + - nxp,s32r-dwmac + + reg: + items: + - description: Main GMAC registers + - description: GMAC PHY mode control register + + interrupts: + maxItems: 1 + + interrupt-names: + const: macirq + + clocks: + items: + - description: Main GMAC clock + - description: Transmit clock + - description: Receive clock + - description: PTP reference clock + + clock-names: + items: + - const: stmmaceth + - const: tx + - const: rx + - const: ptp_ref + +required: + - clocks + - clock-names + +allOf: + - $ref: snps,dwmac.yaml# + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/phy/phy.h> + bus { + #address-cells = <2>; + #size-cells = <2>; + + ethernet@4033c000 { + compatible = "nxp,s32g2-dwmac"; + reg = <0x0 0x4033c000 0x0 0x2000>, /* gmac IP */ + <0x0 0x4007c004 0x0 0x4>; /* GMAC_0_CTRL_STS */ + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "macirq"; + snps,mtl-rx-config = <&mtl_rx_setup>; + snps,mtl-tx-config = <&mtl_tx_setup>; + clocks = <&clks 24>, <&clks 17>, <&clks 16>, <&clks 15>; + clock-names = "stmmaceth", "tx", "rx", "ptp_ref"; + phy-mode = "rgmii-id"; + phy-handle = <&phy0>; + + mtl_rx_setup: rx-queues-config { + snps,rx-queues-to-use = <5>; + }; + + mtl_tx_setup: tx-queues-config { + snps,tx-queues-to-use = <5>; + }; + + mdio { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,dwmac-mdio"; + + phy0: ethernet-phy@0 { + reg = <0>; + }; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml index 4e2ba1bf788c..a88d1c236eaf 100644 --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml @@ -66,6 +66,9 @@ properties: - ingenic,x2000-mac - loongson,ls2k-dwmac - loongson,ls7a-dwmac + - nxp,s32g2-dwmac + - nxp,s32g3-dwmac + - nxp,s32r-dwmac - qcom,qcs404-ethqos - qcom,sa8775p-ethqos - qcom,sc8280xp-ethqos