[PATCH v5 0/8] arm64: dts: mediatek: Add Openwrt One AP functionality

[PATCH v5 0/8] arm64: dts: mediatek: Add Openwrt One AP functionality

[Sjoerd Simons]

Significant changes in V5:
  * Rebase against linux v6.19-rc2, dropping merged patches
  * Drop note about disable pci_aspm in cover letter, not required anymore
Significant changes in V4:
  * Drop patches that were picked up
  * Improve mediatek,net dt bindings:
    - Move back to V2 version (widening global constraint, constraining
      per compatible)
    - Ensure all compatibles are constraint in the amount of WEDs (2 for
      everything apart from mt7981). Specifically adding constraints for
      mediatek,mt7622-eth and ralink,rt5350-eth
Significant changes in V3:
  * Drop patches that were picked up
  * Re-order patches so changes that don't require dt binding changes
    come first (Requested by Angelo)
  * Specify drive power directly rather then using MTK_DRIVE_...
  * Simply mediatek,net binding changes to avoid accidental changes to
    other compatibles then mediatek,mt7981-eth
Significant changes in V2:
  * https://lore.kernel.org/lkml/20251016-openwrt-one-network-v1-0-de259719b6f2@collabora.com/
  * Only introduce labels in mt7981b.dtsi when required
  * Switch Airoha EN8811H phy irq to level rather then edge triggered
  * Move uart0 pinctrl from board dts to soc dtsi
  * Only overwrite constraints with non-default values in MT7981 bindings
  * Make SPI NOR nvmem cell labels more meaningfull
  * Seperate fixing and disable-by-default for the mt7981 in seperate
    patches

This series add various peripherals to the Openwrt One, to make it
actually useful an access point:

* Pcie express (tested with nvme storage)
* Wired network interfaces
* Wireless network interfaces (2.4g, 5ghz wifi)
* Status leds
* SPI NOR for factory data

Unsurprisingly the series is a mix of dt binding updates, extensions of
the mt7981b and the openwrt one dtb. All driver support required is
already available.

Sadly during testing i've found various quirks requiring kernel
arguments. Documenting those here both as note to self and making it
easier for others to test :)

* fw_devlink=permissive: the nvmem fixed-layout doesn't create a layout
  device, so doesn't trigger fw_devlink
* clk_ignore_unused: Needed when building CONFIG_NET_MEDIATEK_SOC as a
  module. If the ethernet related clocks (gp1/gp2) get disabled the
  mac ends up in a weird state causing it not to function correctly.

Patches are against linux v6.19-rc2

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
Sjoerd Simons (8):
      dt-bindings: PCI: mediatek-gen3: Add MT7981 PCIe compatible
      arm64: dts: mediatek: mt7981b: Add PCIe and USB support
      arm64: dts: mediatek: mt7981b-openwrt-one: Enable PCIe and USB
      arm64: dts: mediatek: mt7981b: Add Ethernet and WiFi offload support
      arm64: dts: mediatek: mt7981b-openwrt-one: Enable Ethernet
      arm64: dts: mediatek: mt7981b: Disable wifi by default
      arm64: dts: mediatek: mt7981b: Add wifi memory region
      arm64: dts: mediatek: mt7981b-openwrt-one: Enable wifi

 .../bindings/pci/mediatek-pcie-gen3.yaml           |   1 +
 .../boot/dts/mediatek/mt7981b-openwrt-one.dts      | 125 ++++++++++++
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi          | 222 ++++++++++++++++++++-
 3 files changed, 346 insertions(+), 2 deletions(-)
---
base-commit: b927546677c876e26eba308550207c2ddf812a43
change-id: 20251016-openwrt-one-network-40bc9ac1b25c

Best regards,
-- 
Sjoerd Simons <sjoerd@collabora.com>

[PATCH v5 1/8] dt-bindings: PCI: mediatek-gen3: Add MT7981 PCIe compatible

[Sjoerd Simons]

Add compatible string for MediaTek MT7981 PCIe Gen3 controller.
The MT7981 PCIe controller is compatible with the MT8192 PCIe
controller.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V1 -> V2: Improve commit subject
---
 Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index 0278845701ce..4db700fc36ba 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -48,6 +48,7 @@ properties:
     oneOf:
       - items:
           - enum:
+              - mediatek,mt7981-pcie
               - mediatek,mt7986-pcie
               - mediatek,mt8188-pcie
               - mediatek,mt8195-pcie

-- 
2.51.0

Re: [PATCH v5 1/8] dt-bindings: PCI: mediatek-gen3: Add MT7981 PCIe compatible

[AngeloGioacchino Del Regno]

Il 23/12/25 13:37, Sjoerd Simons ha scritto:
> Add compatible string for MediaTek MT7981 PCIe Gen3 controller.
> The MT7981 PCIe controller is compatible with the MT8192 PCIe
> controller.
> 
> Acked-by: Conor Dooley <conor.dooley@microchip.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>

I picked all of the DTS patches in this series, because this is ready to merge.

PCI maintainers, please, can you pick this one?

Thanks,
Angelo

> ---
> V1 -> V2: Improve commit subject
> ---
>   Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> index 0278845701ce..4db700fc36ba 100644
> --- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> @@ -48,6 +48,7 @@ properties:
>       oneOf:
>         - items:
>             - enum:
> +              - mediatek,mt7981-pcie
>                 - mediatek,mt7986-pcie
>                 - mediatek,mt8188-pcie
>                 - mediatek,mt8195-pcie
> 

[PATCH v5 2/8] arm64: dts: mediatek: mt7981b: Add PCIe and USB support

[Sjoerd Simons]

Add device tree nodes for PCIe controller and USB3 XHCI host
controller on MT7981B SoC. Both controllers share the USB3 PHY
which can be configured for either USB3 or PCIe operation.

The USB3 XHCI controller supports USB 2.0 and USB 3.0 SuperSpeed
operation. The PCIe controller is compatible with PCIe Gen2
specifications.

Also add the topmisc syscon node required for USB/PCIe PHY
multiplexing.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V1 -> V2: Keep xhci reg and phys properties in single lines
---
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 80 +++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index 416096b80770..d3f37413413e 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -2,6 +2,7 @@
 
 #include <dt-bindings/clock/mediatek,mt7981-clk.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/phy/phy.h>
 #include <dt-bindings/reset/mt7986-resets.h>
 
 / {
@@ -223,6 +224,55 @@ auxadc: adc@1100d000 {
 			status = "disabled";
 		};
 
+		xhci: usb@11200000 {
+			compatible = "mediatek,mt7986-xhci", "mediatek,mtk-xhci";
+			reg = <0 0x11200000 0 0x2e00>, <0 0x11203e00 0 0x0100>;
+			reg-names = "mac", "ippc";
+			clocks = <&infracfg CLK_INFRA_IUSB_SYS_CK>,
+				 <&infracfg CLK_INFRA_IUSB_CK>,
+				 <&infracfg CLK_INFRA_IUSB_133_CK>,
+				 <&infracfg CLK_INFRA_IUSB_66M_CK>,
+				 <&topckgen CLK_TOP_U2U3_XHCI_SEL>;
+			clock-names = "sys_ck", "ref_ck", "mcu_ck", "dma_ck", "xhci_ck";
+			interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
+			phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>;
+			status = "disabled";
+		};
+
+		pcie: pcie@11280000 {
+			compatible = "mediatek,mt7981-pcie",
+				     "mediatek,mt8192-pcie";
+			reg = <0 0x11280000 0 0x4000>;
+			reg-names = "pcie-mac";
+			ranges = <0x82000000 0 0x20000000
+				  0x0 0x20000000 0 0x10000000>;
+			bus-range = <0x00 0xff>;
+			clocks = <&infracfg CLK_INFRA_IPCIE_CK>,
+				 <&infracfg CLK_INFRA_IPCIE_PIPE_CK>,
+				 <&infracfg CLK_INFRA_IPCIER_CK>,
+				 <&infracfg CLK_INFRA_IPCIEB_CK>;
+			clock-names = "pl_250m", "tl_26m", "peri_26m", "top_133m";
+			device_type = "pci";
+			phys = <&u3port0 PHY_TYPE_PCIE>;
+			phy-names = "pcie-phy";
+			interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie_intc 0>,
+					<0 0 0 2 &pcie_intc 1>,
+					<0 0 0 3 &pcie_intc 2>,
+					<0 0 0 4 &pcie_intc 3>;
+			#address-cells = <3>;
+			#interrupt-cells = <1>;
+			#size-cells = <2>;
+			status = "disabled";
+
+			pcie_intc: interrupt-controller {
+				interrupt-controller;
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+			};
+		};
+
 		pio: pinctrl@11d00000 {
 			compatible = "mediatek,mt7981-pinctrl";
 			reg = <0 0x11d00000 0 0x1000>,
@@ -252,6 +302,36 @@ mux {
 			};
 		};
 
+		topmisc: topmisc@11d10000 {
+			compatible = "mediatek,mt7981-topmisc", "syscon";
+			reg = <0 0x11d10000 0 0x10000>;
+			#clock-cells = <1>;
+		};
+
+		usb_phy: t-phy@11e10000 {
+			compatible = "mediatek,mt7981-tphy",
+				     "mediatek,generic-tphy-v2";
+			ranges = <0 0 0x11e10000 0x1700>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			status = "disabled";
+
+			u2port0: usb-phy@0 {
+				reg = <0x0 0x700>;
+				clocks = <&topckgen CLK_TOP_USB_FRMCNT_SEL>;
+				clock-names = "ref";
+				#phy-cells = <1>;
+			};
+
+			u3port0: usb-phy@700 {
+				reg = <0x700 0x900>;
+				clocks = <&topckgen CLK_TOP_USB3_PHY_SEL>;
+				clock-names = "ref";
+				#phy-cells = <1>;
+				mediatek,syscon-type = <&topmisc 0x218 0>;
+			};
+		};
+
 		efuse@11f20000 {
 			compatible = "mediatek,mt7981-efuse", "mediatek,efuse";
 			reg = <0 0x11f20000 0 0x1000>;

-- 
2.51.0

Re: [PATCH v5 2/8] arm64: dts: mediatek: mt7981b: Add PCIe and USB support

[Rob Herring]

On Tue, Dec 23, 2025 at 6:38 AM Sjoerd Simons <sjoerd@collabora.com> wrote:
>
> Add device tree nodes for PCIe controller and USB3 XHCI host
> controller on MT7981B SoC. Both controllers share the USB3 PHY
> which can be configured for either USB3 or PCIe operation.
>
> The USB3 XHCI controller supports USB 2.0 and USB 3.0 SuperSpeed
> operation. The PCIe controller is compatible with PCIe Gen2
> specifications.
>
> Also add the topmisc syscon node required for USB/PCIe PHY
> multiplexing.
>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
> ---
> V1 -> V2: Keep xhci reg and phys properties in single lines
> ---
>  arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 80 +++++++++++++++++++++++++++++++
>  1 file changed, 80 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> index 416096b80770..d3f37413413e 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
> @@ -2,6 +2,7 @@
>
>  #include <dt-bindings/clock/mediatek,mt7981-clk.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/phy/phy.h>
>  #include <dt-bindings/reset/mt7986-resets.h>
>
>  / {
> @@ -223,6 +224,55 @@ auxadc: adc@1100d000 {
>                         status = "disabled";
>                 };
>
> +               xhci: usb@11200000 {
> +                       compatible = "mediatek,mt7986-xhci", "mediatek,mtk-xhci";
> +                       reg = <0 0x11200000 0 0x2e00>, <0 0x11203e00 0 0x0100>;
> +                       reg-names = "mac", "ippc";
> +                       clocks = <&infracfg CLK_INFRA_IUSB_SYS_CK>,
> +                                <&infracfg CLK_INFRA_IUSB_CK>,
> +                                <&infracfg CLK_INFRA_IUSB_133_CK>,
> +                                <&infracfg CLK_INFRA_IUSB_66M_CK>,
> +                                <&topckgen CLK_TOP_U2U3_XHCI_SEL>;
> +                       clock-names = "sys_ck", "ref_ck", "mcu_ck", "dma_ck", "xhci_ck";
> +                       interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
> +                       phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>;
> +                       status = "disabled";
> +               };
> +
> +               pcie: pcie@11280000 {
> +                       compatible = "mediatek,mt7981-pcie",
> +                                    "mediatek,mt8192-pcie";
> +                       reg = <0 0x11280000 0 0x4000>;
> +                       reg-names = "pcie-mac";
> +                       ranges = <0x82000000 0 0x20000000
> +                                 0x0 0x20000000 0 0x10000000>;
> +                       bus-range = <0x00 0xff>;
> +                       clocks = <&infracfg CLK_INFRA_IPCIE_CK>,
> +                                <&infracfg CLK_INFRA_IPCIE_PIPE_CK>,
> +                                <&infracfg CLK_INFRA_IPCIER_CK>,
> +                                <&infracfg CLK_INFRA_IPCIEB_CK>;
> +                       clock-names = "pl_250m", "tl_26m", "peri_26m", "top_133m";
> +                       device_type = "pci";
> +                       phys = <&u3port0 PHY_TYPE_PCIE>;
> +                       phy-names = "pcie-phy";
> +                       interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
> +                       interrupt-map-mask = <0 0 0 7>;
> +                       interrupt-map = <0 0 0 1 &pcie_intc 0>,
> +                                       <0 0 0 2 &pcie_intc 1>,
> +                                       <0 0 0 3 &pcie_intc 2>,
> +                                       <0 0 0 4 &pcie_intc 3>;
> +                       #address-cells = <3>;
> +                       #interrupt-cells = <1>;
> +                       #size-cells = <2>;
> +                       status = "disabled";
> +
> +                       pcie_intc: interrupt-controller {
> +                               interrupt-controller;
> +                               #address-cells = <0>;
> +                               #interrupt-cells = <1>;
> +                       };
> +               };
> +
>                 pio: pinctrl@11d00000 {
>                         compatible = "mediatek,mt7981-pinctrl";
>                         reg = <0 0x11d00000 0 0x1000>,
> @@ -252,6 +302,36 @@ mux {
>                         };
>                 };
>
> +               topmisc: topmisc@11d10000 {
> +                       compatible = "mediatek,mt7981-topmisc", "syscon";
> +                       reg = <0 0x11d10000 0 0x10000>;
> +                       #clock-cells = <1>;

This is now a warning as the syscon.yaml binding this compatible is
defined in doesn't allow #clock-cells.

Rob

[PATCH v5 3/8] arm64: dts: mediatek: mt7981b-openwrt-one: Enable PCIe and USB

[Sjoerd Simons]

Enable the PCIe controller and USB3 XHCI host on the OpenWrt One
board. The USB controller is configured for USB 2.0 only mode, as the
shared USB3/PCIe PHY is dedicated to PCIe functionality on this board.

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
 .../boot/dts/mediatek/mt7981b-openwrt-one.dts      | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
index 2e39e7287730..7382599cfea2 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
@@ -67,9 +67,40 @@ led-2 {
 			linux,default-trigger = "netdev";
 		};
 	};
+
+	reg_3p3v: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_5v: regulator-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+};
+
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_pins>;
+	status = "okay";
 };
 
 &pio {
+	pcie_pins: pcie-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie_pereset";
+		};
+	};
+
 	pwm_pins: pwm-pins {
 		mux {
 			function = "pwm";
@@ -163,3 +194,15 @@ partition@180000 {
 &uart0 {
 	status = "okay";
 };
+
+&usb_phy {
+	status = "okay";
+};
+
+&xhci {
+	phys = <&u2port0 PHY_TYPE_USB2>;
+	vusb33-supply = <&reg_3p3v>;
+	vbus-supply = <&reg_5v>;
+	mediatek,u3p-dis-msk = <0x01>;
+	status = "okay";
+};

-- 
2.51.0

[PATCH v5 4/8] arm64: dts: mediatek: mt7981b: Add Ethernet and WiFi offload support

[Sjoerd Simons]

Add device tree nodes for the Ethernet subsystem on MT7981B SoC,
including:
- Ethernet MAC controller with dual GMAC support
- Wireless Ethernet Dispatch (WED)
- SGMII PHY controllers for high-speed Ethernet interfaces
- Reserved memory regions for WiFi offload processor

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V1 -> V2: Don't add unneeded interrupt-parent
---
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 133 +++++++++++++++++++++++++++++-
 1 file changed, 132 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index d3f37413413e..6be588be3761 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -2,6 +2,7 @@
 
 #include <dt-bindings/clock/mediatek,mt7981-clk.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/phy/phy.h>
 #include <dt-bindings/reset/mt7986-resets.h>
 
@@ -47,11 +48,36 @@ reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
+		wo_boot: wo-boot@15194000 {
+			reg = <0 0x15194000 0 0x1000>;
+			no-map;
+		};
+
+		wo_ilm0: wo-ilm@151e0000 {
+			reg = <0 0x151e0000 0 0x8000>;
+			no-map;
+		};
+
+		wo_dlm0: wo-dlm@151e8000 {
+			reg = <0 0x151e8000 0 0x2000>;
+			no-map;
+		};
+
 		/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
 		secmon_reserved: secmon@43000000 {
 			reg = <0 0x43000000 0 0x30000>;
 			no-map;
 		};
+
+		wo_emi0: wo-emi@47d80000 {
+			reg = <0 0x47d80000 0 0x40000>;
+			no-map;
+		};
+
+		wo_data: wo-data@47dc0000 {
+			reg = <0 0x47dc0000 0 0x240000>;
+			no-map;
+		};
 	};
 
 	soc {
@@ -107,6 +133,18 @@ pwm: pwm@10048000 {
 			#pwm-cells = <2>;
 		};
 
+		sgmiisys0: syscon@10060000 {
+			compatible = "mediatek,mt7981-sgmiisys_0", "syscon";
+			reg = <0 0x10060000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		sgmiisys1: syscon@10070000 {
+			compatible = "mediatek,mt7981-sgmiisys_1", "syscon";
+			reg = <0 0x10070000 0 0x1000>;
+			#clock-cells = <1>;
+		};
+
 		uart0: serial@11002000 {
 			compatible = "mediatek,mt7981-uart", "mediatek,mt6577-uart";
 			reg = <0 0x11002000 0 0x100>;
@@ -345,15 +383,108 @@ soc-uuid@140 {
 			thermal_calibration: thermal-calib@274 {
 				reg = <0x274 0xc>;
 			};
+
+			phy_calibration: phy-calib@8dc {
+				reg = <0x8dc 0x10>;
+			};
 		};
 
-		clock-controller@15000000 {
+		ethsys: clock-controller@15000000 {
 			compatible = "mediatek,mt7981-ethsys", "syscon";
 			reg = <0 0x15000000 0 0x1000>;
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 		};
 
+		wed: wed@15010000 {
+			compatible = "mediatek,mt7981-wed",
+				     "syscon";
+			reg = <0 0x15010000 0 0x1000>;
+			interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
+			memory-region = <&wo_emi0>, <&wo_ilm0>, <&wo_dlm0>,
+					<&wo_data>, <&wo_boot>;
+			memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
+					      "wo-data", "wo-boot";
+			mediatek,wo-ccif = <&wo_ccif0>;
+		};
+
+		eth: ethernet@15100000 {
+			compatible = "mediatek,mt7981-eth";
+			reg = <0 0x15100000 0 0x40000>;
+			assigned-clocks = <&topckgen CLK_TOP_NETSYS_2X_SEL>,
+					  <&topckgen CLK_TOP_SGM_325M_SEL>;
+			assigned-clock-parents = <&topckgen CLK_TOP_CB_NET2_800M>,
+						 <&topckgen CLK_TOP_CB_SGM_325M>;
+			clocks = <&ethsys CLK_ETH_FE_EN>,
+				 <&ethsys CLK_ETH_GP2_EN>,
+				 <&ethsys CLK_ETH_GP1_EN>,
+				 <&ethsys CLK_ETH_WOCPU0_EN>,
+				 <&topckgen CLK_TOP_SGM_REG>,
+				 <&sgmiisys0 CLK_SGM0_TX_EN>,
+				 <&sgmiisys0 CLK_SGM0_RX_EN>,
+				 <&sgmiisys0 CLK_SGM0_CK0_EN>,
+				 <&sgmiisys0 CLK_SGM0_CDR_CK0_EN>,
+				 <&sgmiisys1 CLK_SGM1_TX_EN>,
+				 <&sgmiisys1 CLK_SGM1_RX_EN>,
+				 <&sgmiisys1 CLK_SGM1_CK1_EN>,
+				 <&sgmiisys1 CLK_SGM1_CDR_CK1_EN>,
+				 <&topckgen CLK_TOP_NETSYS_SEL>,
+				 <&topckgen CLK_TOP_NETSYS_500M_SEL>;
+			clock-names = "fe", "gp2", "gp1", "wocpu0",
+				      "sgmii_ck",
+				      "sgmii_tx250m", "sgmii_rx250m",
+				      "sgmii_cdr_ref", "sgmii_cdr_fb",
+				      "sgmii2_tx250m", "sgmii2_rx250m",
+				      "sgmii2_cdr_ref", "sgmii2_cdr_fb",
+				      "netsys0", "netsys1";
+			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "fe0", "fe1", "fe2", "fe3", "pdma0",
+					  "pdma1", "pdma2", "pdma3";
+			sram = <&eth_sram>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			mediatek,ethsys = <&ethsys>;
+			mediatek,sgmiisys = <&sgmiisys0>, <&sgmiisys1>;
+			mediatek,infracfg = <&topmisc>;
+			mediatek,wed = <&wed>;
+			status = "disabled";
+
+			mdio_bus: mdio-bus {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				int_gbe_phy: ethernet-phy@0 {
+					compatible = "ethernet-phy-ieee802.3-c22";
+					reg = <0>;
+					phy-mode = "gmii";
+					phy-is-integrated;
+					nvmem-cells = <&phy_calibration>;
+					nvmem-cell-names = "phy-cal-data";
+				};
+			};
+		};
+
+		eth_sram: sram@15140000 {
+			compatible = "mmio-sram";
+			reg = <0 0x15140000 0 0x40000>;
+			ranges = <0 0x15140000 0 0x40000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
+		wo_ccif0: syscon@151a5000 {
+			compatible = "mediatek,mt7986-wo-ccif", "syscon";
+			reg = <0 0x151a5000 0 0x1000>;
+			interrupts = <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
 		wifi@18000000 {
 			compatible = "mediatek,mt7981-wmac";
 			reg = <0 0x18000000 0 0x1000000>,

-- 
2.51.0

[PATCH v5 5/8] arm64: dts: mediatek: mt7981b-openwrt-one: Enable Ethernet

[Sjoerd Simons]

Enable the Ethernet subsystem on OpenWrt One board with dual-MAC
configuration:
- GMAC0: Connected to external Airoha EN8811H 2.5GbE PHY via SGMII
  (2500base-x mode) for WAN connectivity with LED indicators
- GMAC1: Connected to internal MT7981 1GbE PHY (GMII mode) for LAN

Ethernet aliases are defined to provide consistent network interface
naming (ethernet0 = LAN, ethernet1 = WAN).

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V1 -> V2:
  - Switch gmac0 phy irq to Level
  - Update mac nvmem label name
---
 .../boot/dts/mediatek/mt7981b-openwrt-one.dts      | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
index 7382599cfea2..2aea89900645 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
@@ -12,6 +12,8 @@ / {
 	model = "OpenWrt One";
 
 	aliases {
+		ethernet0 = &gmac1;
+		ethernet1 = &gmac0;
 		serial0 = &uart0;
 	};
 
@@ -87,6 +89,58 @@ reg_5v: regulator-5v {
 	};
 };
 
+&eth {
+	status = "okay";
+
+	/* WAN interface */
+	gmac0: mac@0 {
+		compatible = "mediatek,eth-mac";
+		reg = <0>;
+		nvmem-cells = <&wan_factory_mac 0>;
+		nvmem-cell-names = "mac-address";
+		phy-mode = "2500base-x";
+		phy-handle = <&phy15>;
+	};
+
+	/* LAN interface */
+	gmac1: mac@1 {
+		compatible = "mediatek,eth-mac";
+		reg = <1>;
+		phy-mode = "gmii";
+		phy-handle = <&int_gbe_phy>;
+	};
+};
+
+&mdio_bus {
+	phy15: ethernet-phy@f {
+		compatible = "ethernet-phy-id03a2.a411";
+		reg = <0xf>;
+		interrupt-parent = <&pio>;
+		interrupts = <38 IRQ_TYPE_LEVEL_LOW>;
+		reset-gpios = <&pio 39 GPIO_ACTIVE_LOW>;
+		reset-assert-us = <10000>;
+		reset-deassert-us = <20000>;
+		airoha,pnswap-rx;
+
+		leds {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			led@0 {
+				reg = <0>;
+				function = LED_FUNCTION_WAN;
+				color = <LED_COLOR_ID_AMBER>;
+			};
+
+			led@1 {
+				reg = <1>;
+				function = LED_FUNCTION_WAN;
+				color = <LED_COLOR_ID_GREEN>;
+			};
+		};
+	};
+};
+
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_pins>;
@@ -191,6 +245,10 @@ partition@180000 {
 	};
 };
 
+&sgmiisys0 {
+	mediatek,pnswap;
+};
+
 &uart0 {
 	status = "okay";
 };

-- 
2.51.0

[PATCH v5 6/8] arm64: dts: mediatek: mt7981b: Disable wifi by default

[Sjoerd Simons]

Disable the wifi block by default as it won't function properly without
at least pin muxing.

This doesn't enable wifi on any of the existing mt7981b devices as a
required memory-region property is missing, causing the driver to fail
probing anyway.

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V2: Newly introduced patch
---
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index 6be588be3761..1f4c11435466 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -499,6 +499,7 @@ wifi@18000000 {
 			clock-names = "mcu", "ap2conn";
 			resets = <&watchdog MT7986_TOPRGU_CONSYS_SW_RST>;
 			reset-names = "consys";
+			status = "disabled";
 		};
 	};
 

-- 
2.51.0

[PATCH v5 7/8] arm64: dts: mediatek: mt7981b: Add wifi memory region

[Sjoerd Simons]

Add required memory region for the builtin wifi block.

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V1 -> V2: Don't set status to in this patch
---
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index 1f4c11435466..a7be3670e005 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -69,6 +69,11 @@ secmon_reserved: secmon@43000000 {
 			no-map;
 		};
 
+		wmcpu_emi: wmcpu-reserved@47c80000 {
+			reg = <0 0x47c80000 0 0x100000>;
+			no-map;
+		};
+
 		wo_emi0: wo-emi@47d80000 {
 			reg = <0 0x47d80000 0 0x40000>;
 			no-map;
@@ -497,6 +502,7 @@ wifi@18000000 {
 			clocks = <&topckgen CLK_TOP_NETSYS_MCU_SEL>,
 				 <&topckgen CLK_TOP_AP2CNN_HOST_SEL>;
 			clock-names = "mcu", "ap2conn";
+			memory-region = <&wmcpu_emi>;
 			resets = <&watchdog MT7986_TOPRGU_CONSYS_SW_RST>;
 			reset-names = "consys";
 			status = "disabled";

-- 
2.51.0

[PATCH v5 8/8] arm64: dts: mediatek: mt7981b-openwrt-one: Enable wifi

[Sjoerd Simons]

Enable Dual-band WiFI 6 functionality on the Openwrt One

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
---
V2 -> V3: replace MTK_DRIVE_4mA with direct value
V1 -> V2: Update eeprom node label
---
 .../boot/dts/mediatek/mt7981b-openwrt-one.dts      | 24 ++++++++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt7981b.dtsi          |  2 +-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
index 2aea89900645..3de368c73bc8 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
@@ -180,6 +180,22 @@ conf-pd {
 			pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
 		};
 	};
+
+	wifi_dbdc_pins: wifi-dbdc-pins {
+		mux {
+			function = "eth";
+			groups = "wf0_mode1";
+		};
+
+		conf {
+			pins = "WF_HB1", "WF_HB2", "WF_HB3", "WF_HB4",
+			       "WF_HB0", "WF_HB0_B", "WF_HB5", "WF_HB6",
+			       "WF_HB7", "WF_HB8", "WF_HB9", "WF_HB10",
+			       "WF_TOP_CLK", "WF_TOP_DATA", "WF_XO_REQ",
+			       "WF_CBA_RESETB", "WF_DIG_RESETB";
+			drive-strength = <4>;
+		};
+	};
 };
 
 &pwm {
@@ -257,6 +273,14 @@ &usb_phy {
 	status = "okay";
 };
 
+&wifi {
+	nvmem-cells = <&wifi_factory_calibration>;
+	nvmem-cell-names = "eeprom";
+	pinctrl-names = "dbdc";
+	pinctrl-0 = <&wifi_dbdc_pins>;
+	status = "okay";
+};
+
 &xhci {
 	phys = <&u2port0 PHY_TYPE_USB2>;
 	vusb33-supply = <&reg_3p3v>;
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index a7be3670e005..66d89495bac5 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -490,7 +490,7 @@ wo_ccif0: syscon@151a5000 {
 			interrupts = <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
-		wifi@18000000 {
+		wifi: wifi@18000000 {
 			compatible = "mediatek,mt7981-wmac";
 			reg = <0 0x18000000 0 0x1000000>,
 			      <0 0x10003000 0 0x1000>,

-- 
2.51.0

Re: (subset) [PATCH v5 0/8] arm64: dts: mediatek: Add Openwrt One AP functionality

[AngeloGioacchino Del Regno]

On Tue, 23 Dec 2025 13:37:50 +0100, Sjoerd Simons wrote:
> Significant changes in V5:
>   * Rebase against linux v6.19-rc2, dropping merged patches
>   * Drop note about disable pci_aspm in cover letter, not required anymore
> Significant changes in V4:
>   * Drop patches that were picked up
>   * Improve mediatek,net dt bindings:
>     - Move back to V2 version (widening global constraint, constraining
>       per compatible)
>     - Ensure all compatibles are constraint in the amount of WEDs (2 for
>       everything apart from mt7981). Specifically adding constraints for
>       mediatek,mt7622-eth and ralink,rt5350-eth
> Significant changes in V3:
>   * Drop patches that were picked up
>   * Re-order patches so changes that don't require dt binding changes
>     come first (Requested by Angelo)
>   * Specify drive power directly rather then using MTK_DRIVE_...
>   * Simply mediatek,net binding changes to avoid accidental changes to
>     other compatibles then mediatek,mt7981-eth
> Significant changes in V2:
>   * https://lore.kernel.org/lkml/20251016-openwrt-one-network-v1-0-de259719b6f2@collabora.com/
>   * Only introduce labels in mt7981b.dtsi when required
>   * Switch Airoha EN8811H phy irq to level rather then edge triggered
>   * Move uart0 pinctrl from board dts to soc dtsi
>   * Only overwrite constraints with non-default values in MT7981 bindings
>   * Make SPI NOR nvmem cell labels more meaningfull
>   * Seperate fixing and disable-by-default for the mt7981 in seperate
>     patches
> 
> [...]

Applied to v6.19-next/dts64, thanks!

[2/8] arm64: dts: mediatek: mt7981b: Add PCIe and USB support
      commit: b82833f94f48047b5bf34077d55545ebc67b26a6
[3/8] arm64: dts: mediatek: mt7981b-openwrt-one: Enable PCIe and USB
      commit: 39838919ff0e4ce036c733b62e6e3afb23523484
[4/8] arm64: dts: mediatek: mt7981b: Add Ethernet and WiFi offload support
      commit: 8b5883ab03eb6f35362b94985d81ff6bf999e1f2
[5/8] arm64: dts: mediatek: mt7981b-openwrt-one: Enable Ethernet
      commit: dd8be279b0c229fadb794b452c1172661e4b122a
[6/8] arm64: dts: mediatek: mt7981b: Disable wifi by default
      commit: a6a0280c9f4fb5869d78148320403e703ce86c12
[7/8] arm64: dts: mediatek: mt7981b: Add wifi memory region
      commit: 973a626e940989b58b8b2623ce0d45aa19773c73
[8/8] arm64: dts: mediatek: mt7981b-openwrt-one: Enable wifi
      commit: 7c6088a69fab4f6a2f5552ac61cc480f832f74ba

Cheers,
Angelo

Re: (subset) [PATCH v5 0/8] arm64: dts: mediatek: Add Openwrt One AP functionality

[Manivannan Sadhasivam]

On Tue, 23 Dec 2025 13:37:50 +0100, Sjoerd Simons wrote:
> Significant changes in V5:
>   * Rebase against linux v6.19-rc2, dropping merged patches
>   * Drop note about disable pci_aspm in cover letter, not required anymore
> Significant changes in V4:
>   * Drop patches that were picked up
>   * Improve mediatek,net dt bindings:
>     - Move back to V2 version (widening global constraint, constraining
>       per compatible)
>     - Ensure all compatibles are constraint in the amount of WEDs (2 for
>       everything apart from mt7981). Specifically adding constraints for
>       mediatek,mt7622-eth and ralink,rt5350-eth
> Significant changes in V3:
>   * Drop patches that were picked up
>   * Re-order patches so changes that don't require dt binding changes
>     come first (Requested by Angelo)
>   * Specify drive power directly rather then using MTK_DRIVE_...
>   * Simply mediatek,net binding changes to avoid accidental changes to
>     other compatibles then mediatek,mt7981-eth
> Significant changes in V2:
>   * https://lore.kernel.org/lkml/20251016-openwrt-one-network-v1-0-de259719b6f2@collabora.com/
>   * Only introduce labels in mt7981b.dtsi when required
>   * Switch Airoha EN8811H phy irq to level rather then edge triggered
>   * Move uart0 pinctrl from board dts to soc dtsi
>   * Only overwrite constraints with non-default values in MT7981 bindings
>   * Make SPI NOR nvmem cell labels more meaningfull
>   * Seperate fixing and disable-by-default for the mt7981 in seperate
>     patches
> 
> [...]

Applied, thanks!

[1/8] dt-bindings: PCI: mediatek-gen3: Add MT7981 PCIe compatible
      commit: 407cc7ff3e99f6bca9b4ca2561d3f9e7192652fe

Best regards,
-- 
Manivannan Sadhasivam <mani@kernel.org>