[PATCH v2 3/3] ARM: dts: Add ixp4xx Actiontec MI424WR device trees
Linus Walleij
linus.walleij at linaro.org
Fri Aug 22 10:56:16 PDT 2025
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 at 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 at c8009000 {
+ phy-handle = <&phy17>; // 17 on revision A-C
+
+ mdio {
+ phy17: ethernet-phy at 17 {
+ /* WAN */
+ reg = <17>;
+ };
+ };
+ };
+
+ /* EthC used for LAN */
+ ethernet at 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 at c8009000 {
+ /* Fixed link to the CPU MII port on the KS8995 */
+ fixed-link {
+ speed = <100>;
+ full-duplex;
+ };
+
+ mdio {
+ /* PHY ID 0x00221450 */
+ phy5: ethernet-phy at 5 {
+ /* WAN */
+ reg = <5>;
+ };
+ };
+ };
+
+ /* EthC used for WAN */
+ ethernet at 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 at 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 at 0 {
+ compatible = "micrel,ks8995";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet-port at 0 {
+ reg = <0>;
+ label = "lan1";
+ phy-mode = "mii";
+ phy-handle = <&phy1>;
+ };
+ ethernet-port at 1 {
+ reg = <1>;
+ label = "lan2";
+ phy-mode = "mii";
+ phy-handle = <&phy2>;
+ };
+ ethernet-port at 2 {
+ reg = <2>;
+ label = "lan3";
+ phy-mode = "mii";
+ phy-handle = <&phy3>;
+ };
+ ethernet-port at 3 {
+ reg = <3>;
+ label = "lan4";
+ phy-mode = "mii";
+ phy-handle = <&phy4>;
+ };
+ ethernet-port at 4 {
+ reg = <4>;
+ ethernet = <ðc>;
+ phy-mode = "mii";
+ fixed-link {
+ speed = <100>;
+ full-duplex;
+ };
+ };
+
+ };
+ };
+ };
+
+ soc {
+ bus at c4000000 {
+ flash at 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 at 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 at 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 at 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 at 1 {
+ /* LAN1 */
+ reg = <1>;
+ };
+ phy2: ethernet-phy at 2 {
+ /* LAN2 */
+ reg = <2>;
+ };
+ phy3: ethernet-phy at 3 {
+ /* LAN3 */
+ reg = <3>;
+ };
+ phy4: ethernet-phy at 4 {
+ /* LAN4 */
+ reg = <4>;
+ };
+ };
+ };
+
+ ethc: ethernet at c800a000 {
+ status = "okay";
+ queue-rx = <&qmgr 4>;
+ queue-txready = <&qmgr 21>;
+ phy-mode = "mii";
+ };
+ };
+};
--
2.50.1
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