[PATCH v2 0/3] ARM: dts: ixp4xx: Add device trees for MI424WR

[PATCH v2 0/3] ARM: dts: ixp4xx: Add device trees for MI424WR

[Linus Walleij]

This patch series adds device trees for Actiontec MI424WR
versions A, C and D.

These routers are quite common in the Americas and uses
the IXP4xx SoC.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
Changes in v2:
- Fix some wording in the compatible boards patch.
- Split off a series to add proper compatible and schema
  for the ixp4xx expansion bus MMIO GPIO and use the
  compatible from that series, iterated that series as
  well.
- Link to v1: https://lore.kernel.org/r/20250814-ixp4xx-mi424wr-dts-v1-0-b7c10f3c4193@linaro.org

---
Linus Walleij (3):
      dt-bindings: Add Actiontec vendor prefix
      dt-bindings: arm: ixp4xx: List actiontec devices
      ARM: dts: Add ixp4xx Actiontec MI424WR device trees

 .../devicetree/bindings/arm/intel-ixp4xx.yaml      |   2 +
 .../devicetree/bindings/vendor-prefixes.yaml       |   2 +
 arch/arm/boot/dts/intel/ixp/Makefile               |   2 +
 .../ixp/intel-ixp42x-actiontec-mi424wr-ac.dts      |  37 +++
 .../intel/ixp/intel-ixp42x-actiontec-mi424wr-d.dts |  38 +++
 .../intel/ixp/intel-ixp42x-actiontec-mi424wr.dtsi  | 272 +++++++++++++++++++++
 6 files changed, 353 insertions(+)
---
base-commit: ddf87238d4535eefe858b642ee54f6740018b487
change-id: 20250814-ixp4xx-mi424wr-dts-afef5c00d68d

Best regards,
-- 
Linus Walleij <linus.walleij@linaro.org>

[PATCH v2 1/3] dt-bindings: Add Actiontec vendor prefix

[Linus Walleij]

Actiontec is a US manufacturer of telecom equipment.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 77160cd47f54079a39f35b570d69f7c4c2274724..a0abe9e39291eb687793d1b4b4187524a004a413 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -48,6 +48,8 @@ patternProperties:
     description: Acme Systems srl
   "^actions,.*":
     description: Actions Semiconductor Co., Ltd.
+  "^actiontec,.*":
+    description: Actiontec Electronics, Inc
   "^active-semi,.*":
     description: Active-Semi International Inc
   "^ad,.*":

-- 
2.50.1

[PATCH v2 2/3] dt-bindings: arm: ixp4xx: List actiontec devices

[Linus Walleij]

Add two IXP4xx device families from OpenWrts backlog:
Actiontec MI424WR revision A/C and revision D, both
of these are IXP4xx devices.

Revisions E and later use different chipsets.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml b/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
index d60792b1d995f909f621b3326e62d19223f6683c..b7b430896596aacb792983d8538b84f389cc5bd1 100644
--- a/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
+++ b/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
@@ -16,6 +16,8 @@ properties:
     oneOf:
       - items:
           - enum:
+              - actiontec,mi424wr-ac
+              - actiontec,mi424wr-d
               - adieng,coyote
               - arcom,vulcan
               - dlink,dsm-g600-a

-- 
2.50.1

[PATCH v2 3/3] ARM: dts: Add ixp4xx Actiontec MI424WR device trees

[Linus Walleij]

The Actiontex MI424WR is a pretty widespread home router, made
in many different revisions.

Revisions A, C and D are based on IXP42x. We add a device tree
for the A/C variant and one for the D variant as these differ in
the location of the WAN PHY on the MDIO bus, and the ethernet
interfaces for the WAN PHY and the DSA switch are switched around.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/intel/ixp/Makefile               |   2 +
 .../ixp/intel-ixp42x-actiontec-mi424wr-ac.dts      |  37 +++
 .../intel/ixp/intel-ixp42x-actiontec-mi424wr-d.dts |  38 +++
 .../intel/ixp/intel-ixp42x-actiontec-mi424wr.dtsi  | 272 +++++++++++++++++++++
 4 files changed, 349 insertions(+)

diff --git a/arch/arm/boot/dts/intel/ixp/Makefile b/arch/arm/boot/dts/intel/ixp/Makefile
index ab8525f1ea1d25abe72fca4dd323d97e2d3c5bb4..cb30d8d55016fbe00848242d9d1a017f7e48c6db 100644
--- a/arch/arm/boot/dts/intel/ixp/Makefile
+++ b/arch/arm/boot/dts/intel/ixp/Makefile
@@ -1,5 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_IXP4XX) += \
+	intel-ixp42x-actiontec-mi424wr-ac.dtb \
+	intel-ixp42x-actiontec-mi424wr-d.dtb \
 	intel-ixp42x-linksys-nslu2.dtb \
 	intel-ixp42x-linksys-wrv54g.dtb \
 	intel-ixp42x-freecom-fsg-3.dtb \
diff --git a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr-ac.dts b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr-ac.dts
new file mode 100644
index 0000000000000000000000000000000000000000..413b9255f9e3cf24fd1dde6a300a8295e3fdee0f
--- /dev/null
+++ b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr-ac.dts
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the IXP425-based Actiontec MI424WR revision A and C
+ * Based on a board file from OpenWrt by Jose Vasconcellos.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x-actiontec-mi424wr.dtsi"
+
+/ {
+	model = "Actiontec MI424WR rev A/C";
+	compatible = "actiontec,mi424wr-ac", "intel,ixp42x";
+
+	soc {
+		/* EthB used for WAN */
+		ethernet@c8009000 {
+			phy-handle = <&phy17>; // 17 on revision A-C
+
+			mdio {
+				phy17: ethernet-phy@17 {
+					/* WAN */
+					reg = <17>;
+				};
+			};
+		};
+
+		/* EthC used for LAN */
+		ethernet@c800a000 {
+			/* Fixed link to the CPU MII port on the KS8995 */
+			fixed-link {
+				speed = <100>;
+				full-duplex;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr-d.dts b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr-d.dts
new file mode 100644
index 0000000000000000000000000000000000000000..3619c6411a5c04b78d32aac5f2fc0c42a99e7acd
--- /dev/null
+++ b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr-d.dts
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the IXP425-based Actiontec MI424WR revision D
+ * Based on a board file from OpenWrt by Jose Vasconcellos.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x-actiontec-mi424wr.dtsi"
+
+/ {
+	model = "Actiontec MI424WR rev D";
+	compatible = "actiontec,mi424wr-d", "intel,ixp42x";
+
+	soc {
+		/* EthB used for LAN */
+		ethernet@c8009000 {
+			/* Fixed link to the CPU MII port on the KS8995 */
+			fixed-link {
+				speed = <100>;
+				full-duplex;
+			};
+
+			mdio {
+				/* PHY ID 0x00221450 */
+				phy5: ethernet-phy@5 {
+					/* WAN */
+					reg = <5>;
+				};
+			};
+		};
+
+		/* EthC used for WAN */
+		ethernet@c800a000 {
+			phy-handle = <&phy5>; // 5 on revision D
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr.dtsi b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr.dtsi
new file mode 100644
index 0000000000000000000000000000000000000000..76fd97c5beb69d4cd682392a7e659590cb331be4
--- /dev/null
+++ b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-actiontec-mi424wr.dtsi
@@ -0,0 +1,272 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the IXP425-based Actiontec MI424WR
+ * Based on a board file from OpenWrt by Jose Vasconcellos.
+ */
+
+#include "intel-ixp42x.dtsi"
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x02000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8";
+		stdout-path = "uart1:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-wan-coax {
+			color = <LED_COLOR_ID_GREEN>;
+			function = "wan-coax";
+			gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+		led-power-alarm {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_ALARM;
+			gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+		led-power {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_POWER;
+			gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+		led-wireless {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_WLAN;
+			gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+		led-internet-down {
+			color = <LED_COLOR_ID_RED>;
+			function = "internet-down";
+			gpios = <&gpio1 3 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+		led-internet-up {
+			color = <LED_COLOR_ID_GREEN>;
+			function = "internet-up";
+			gpios = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+		led-lan-coax {
+			color = <LED_COLOR_ID_GREEN>;
+			function = "lan-coax";
+			gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+		led-wan-ethernet-alarm {
+			color = <LED_COLOR_ID_RED>;
+			function = "wan-ethernet-alarm";
+			gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+		/* The last three LEDs are not mounted but traces exist on the PCB */
+		led-phone-1 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = "phone-1";
+			gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+		led-phone-2 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = "phone-2";
+			gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+		led-voip {
+			color = <LED_COLOR_ID_GREEN>;
+			function = "voip";
+			gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		button-reset {
+			wakeup-source;
+			linux,code = <KEY_RESTART>;
+			label = "reset";
+			gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	spi {
+		compatible = "spi-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		sck-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
+		mosi-gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
+		miso-gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
+		cs-gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
+		num-chipselects = <1>;
+
+		ethernet-switch@0 {
+			compatible = "micrel,ks8995";
+			reg = <0>;
+			spi-max-frequency = <50000000>;
+
+			ethernet-ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				ethernet-port@0 {
+					reg = <0>;
+					label = "lan1";
+					phy-mode = "mii";
+					phy-handle = <&phy1>;
+				};
+				ethernet-port@1 {
+					reg = <1>;
+					label = "lan2";
+					phy-mode = "mii";
+					phy-handle = <&phy2>;
+				};
+				ethernet-port@2 {
+					reg = <2>;
+					label = "lan3";
+					phy-mode = "mii";
+					phy-handle = <&phy3>;
+				};
+				ethernet-port@3 {
+					reg = <3>;
+					label = "lan4";
+					phy-mode = "mii";
+					phy-handle = <&phy4>;
+				};
+				ethernet-port@4 {
+					reg = <4>;
+					ethernet = <&ethc>;
+					phy-mode = "mii";
+					fixed-link {
+						speed = <100>;
+						full-duplex;
+					};
+				};
+
+			};
+		};
+	};
+
+	soc {
+		bus@c4000000 {
+			flash@0,0 {
+				compatible = "intel,ixp4xx-flash", "cfi-flash";
+				bank-width = <2>;
+				/*
+				 * 8 MB of Flash in 64 0x20000 sized blocks
+				 * mapped in at CS0.
+				 */
+				reg = <0 0x00000000 0x0800000>;
+
+				/* Configure expansion bus to allow writes */
+				intel,ixp4xx-eb-write-enable = <1>;
+
+				partitions {
+					compatible = "redboot-fis";
+					fis-index-block = <0x3f>;
+				};
+			};
+			gpio1: gpio@1,0 {
+				/* MMIO GPIO at CS1 */
+				compatible = "intel,ixp4xx-expansion-bus-mmio-gpio";
+				gpio-controller;
+				#gpio-cells = <2>;
+				big-endian;
+				reg = <1 0x00000000 0x2>;
+				reg-names = "dat";
+				/* Expansion bus settings */
+				intel,ixp4xx-eb-write-enable = <1>;
+
+				pci-reset-hog {
+					gpio-hog;
+					gpios = <7 GPIO_ACTIVE_HIGH>;
+					output-high;
+					line-name = "PCI reset";
+				};
+				pstn-relay-hog-1 {
+					gpio-hog;
+					gpios = <11 GPIO_ACTIVE_HIGH>;
+					output-low;
+					line-name = "PSTN relay control 1";
+				};
+				pstn-relay-hog-2 {
+					gpio-hog;
+					gpios = <12 GPIO_ACTIVE_HIGH>;
+					output-low;
+					line-name = "PSTN relay control 2";
+				};
+			};
+		};
+
+		pci@c0000000 {
+			status = "okay";
+
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0xf800 0 0 7>;
+			interrupt-map =
+			/* IDSEL 13 */
+			<0x6800 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 8 */
+			<0x6800 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 6 */
+			/* IDSEL 14 */
+			<0x7000 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 7 */
+			<0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 8 */
+			/* IDSEL 15 */
+			<0x7800 0 0 1 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 15 is irq 6 */
+			<0x7800 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT B on slot 15 is irq 7 */
+		};
+
+		ethb: ethernet@c8009000 {
+			status = "okay";
+			queue-rx = <&qmgr 3>;
+			queue-txready = <&qmgr 20>;
+			phy-mode = "mii";
+
+			mdio {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				/* 1, 2, 3 and 4 are ports on the KS8995 switch */
+				phy1: ethernet-phy@1 {
+					/* LAN1 */
+					reg = <1>;
+				};
+				phy2: ethernet-phy@2 {
+					/* LAN2 */
+					reg = <2>;
+				};
+				phy3: ethernet-phy@3 {
+					/* LAN3 */
+					reg = <3>;
+				};
+				phy4: ethernet-phy@4 {
+					/* LAN4 */
+					reg = <4>;
+				};
+			};
+		};
+
+		ethc: ethernet@c800a000 {
+			status = "okay";
+			queue-rx = <&qmgr 4>;
+			queue-txready = <&qmgr 21>;
+			phy-mode = "mii";
+		};
+	};
+};

-- 
2.50.1