econet: basic Ethernet support

This is about as simple as it gets, it's able to start up and put
the onboard switch into dumb switch mode and then send untagged
frames which become available on every switch port.

It is out-of-tree to allow for rapid development and it is being
proposed now because even in this state it brings a lot of value
to the EcoNet platform and it is a fairly complex ethernet system
so it will take some time before the driver is in a state that
may be considered for upstreaming.

Signed-off-by: Caleb James DeLisle <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20685
Signed-off-by: Hauke Mehrtens <[email protected]>

diff --git a/package/kernel/econet-eth/Makefile b/package/kernel/econet-eth/Makefile
new file mode 100644 (file)
index 0000000..1de42b5
--- /dev/null
+++ b/package/kernel/econet-eth/Makefile
@@ -0,0 +1,35 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=econet-eth
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/cjdelisle/econet_eth.git
+PKG_MIRROR_HASH:=764e18fe2f87cb0c742711c18ed995a2270b02f0072e7a0938906d0246287111
+PKG_SOURCE_DATE:=2025-11-07
+PKG_SOURCE_VERSION:=40aac736a46fec0d96beadd7513c53d1f0459737
+
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/econet-eth
+  SUBMENU:=Network Devices
+  TITLE:=EcoNet EN751221 Ethernet Driver
+  DEPENDS:=@TARGET_econet
+  FILES:=$(PKG_BUILD_DIR)/econet-eth.ko
+  AUTOLOAD:=$(call AutoLoad,90,econet-eth)
+endef
+
+define KernelPackage/econet-eth/description
+  Out-of-tree ethernet driver for EcoNet EN751221 devices.
+endef
+
+define Build/Prepare
+       $(call Build/Prepare/Default)
+endef
+
+define Build/Compile
+       $(KERNEL_MAKE) M=$(PKG_BUILD_DIR) modules
+endef
+
+$(eval $(call KernelPackage,econet-eth))

diff --git a/target/linux/econet/dts/en751221.dtsi b/target/linux/econet/dts/en751221.dtsi
index d512d0425ad9e1821e75f5b08d4675335ee99fa9..0a2448cd1ca557bae2941711685fdca0cc3c7288 100644 (file)
--- a/target/linux/econet/dts/en751221.dtsi
+++ b/target/linux/econet/dts/en751221.dtsi
@@ -56,6 +56,93 @@
                econet,shadow-interrupts = <7 2>, <8 3>, <13 12>, <30 29>;
        };
 
+       ethernet: ethernet@1fb50000 {
+               compatible = "econet,en751221-eth";
+               reg = <0x1fb50000 0x10000>;
+
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               interrupt-parent = <&intc>;
+               interrupts = <21>, <22>;
+
+               gmac0: mac@0 {
+                       compatible = "econet,eth-mac";
+                       reg = <0>;
+                       phy-mode = "trgmii";
+                       status = "disabled";
+
+                       fixed-link {
+                               speed = <1000>;
+                               full-duplex;
+                               pause;
+                       };
+               };
+
+               gmac1: mac@1 {
+                       compatible = "econet,eth-mac";
+                       reg = <1>;
+                       status = "disabled";
+                       phy-mode = "rgmii-rxid";
+               };
+
+                mdio: mdio-bus {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch0: switch@1f {
+                               compatible = "mediatek,mt7530";
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               reg = <0x1f>;
+                               mediatek,mcm;
+                               reset-names = "mcm";
+
+                               ports {
+                                       #address-cells = <1>;
+                                       #size-cells = <0>;
+                                       reg = <0>;
+
+                                       port@0 {
+                                               status = "disabled";
+                                               reg = <0>;
+                                               label = "lan0";
+                                       };
+
+                                       port@1 {
+                                               status = "disabled";
+                                               reg = <1>;
+                                               label = "lan1";
+                                       };
+
+                                       port@2 {
+                                               status = "disabled";
+                                               reg = <2>;
+                                               label = "lan2";
+                                       };
+
+                                       port@3 {
+                                               status = "disabled";
+                                               reg = <3>;
+                                               label = "lan3";
+                                       };
+
+                                       port@6 {
+                                               reg = <6>;
+                                               label = "cpu";
+                                               ethernet = <&gmac0>;
+                                               phy-mode = "trgmii";
+
+                                               fixed-link {
+                                                       speed = <1000>;
+                                                       full-duplex;
+                                               };
+                                       };
+                               };
+                       };
+               };
+       };
+
     usb: usb@1fb90000 {
             compatible = "mediatek,mt8173-xhci", "mediatek,mtk-xhci";
             reg = <0x1fb90000 0x4000>,

diff --git a/target/linux/econet/dts/en751221_generic.dts b/target/linux/econet/dts/en751221_generic.dts
index 375b9ebd3a53ae50ead4264359ce5eb44d20802f..026f3e37391a282846e443b8eeb5f2e67a9b4f27 100644 (file)
--- a/target/linux/econet/dts/en751221_generic.dts
+++ b/target/linux/econet/dts/en751221_generic.dts
@@ -50,3 +50,7 @@
                };
        };
 };
+
+&gmac0 {
+       status = "okay";
+};

diff --git a/target/linux/econet/dts/en751221_nokia_g240g-e.dts b/target/linux/econet/dts/en751221_nokia_g240g-e.dts
index bea569cdbc26d4e18fdc9e65b40b0de6b0746a85..68c314dbd9a27399d2002c66c499ad780042a11f 100644 (file)
--- a/target/linux/econet/dts/en751221_nokia_g240g-e.dts
+++ b/target/linux/econet/dts/en751221_nokia_g240g-e.dts
@@ -123,3 +123,9 @@
                };
        };
 };
+
+&gmac0 {
+       status = "okay";
+       nvmem-cells = <&macaddr_ri_3e 0>;
+       nvmem-cell-names = "mac-address";
+};

diff --git a/target/linux/econet/dts/en751221_smartfiber_xp8421-b.dts b/target/linux/econet/dts/en751221_smartfiber_xp8421-b.dts
index 314c98fc5ebf7e33b27072831368197370fa0ce7..4599d3405355e22272ac8604d59cc7667c2c24b3 100644 (file)
--- a/target/linux/econet/dts/en751221_smartfiber_xp8421-b.dts
+++ b/target/linux/econet/dts/en751221_smartfiber_xp8421-b.dts
@@ -104,3 +104,9 @@
                };
        };
 };
+
+&gmac0 {
+       status = "okay";
+       nvmem-cells = <&macaddr_bootloader_ff48 0>;
+       nvmem-cell-names = "mac-address";
+};

diff --git a/target/linux/econet/dts/en751221_tplink_archer-vr1200v-v2.dts b/target/linux/econet/dts/en751221_tplink_archer-vr1200v-v2.dts
index 56dec97c271f8da6d85a47b1440d530a1dce1823..2bc44d11cd5caf00ed487bbef205036174a292c3 100644 (file)
--- a/target/linux/econet/dts/en751221_tplink_archer-vr1200v-v2.dts
+++ b/target/linux/econet/dts/en751221_tplink_archer-vr1200v-v2.dts
@@ -96,3 +96,9 @@
                };
        };
 };
+
+&gmac0 {
+       status = "okay";
+       nvmem-cells = <&macaddr_misc_8f100 0>;
+       nvmem-cell-names = "mac-address";
+};