mediatek: add Airoha AN8855 gigabit switch driver

dimfishr · Oct 15, 2024 · 66c5aae · 66c5aae
1 parent 484ea6a
commit 66c5aae
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Showing 16 changed files with 4,546 additions and 2 deletions.
diff --git a/package/kernel/linux/modules/netdevices.mk b/package/kernel/linux/modules/netdevices.mk
@@ -555,6 +555,23 @@ endef
 
 $(eval $(call KernelPackage,dsa-tag-dsa))
 
+define KernelPackage/dsa-an8855
+  SUBMENU:=$(NETWORK_DEVICES_MENU)
+  TITLE:=Airoha AN8855 DSA switch
+  DEPENDS:=+kmod-dsa
+  KCONFIG:=CONFIG_NET_DSA_AN8855 \
+	CONFIG_NET_DSA_TAG_AIROHA
+  FILES:=$(LINUX_DIR)/drivers/net/dsa/airoha/an8855/an8855-dsa.ko \
+	$(LINUX_DIR)/net/dsa/tag_arht.ko
+  AUTOLOAD:=$(call AutoLoad,41,an8855-dsa,1)
+endef
+
+define KernelPackage/dsa-an8855/description
+  Kernel modules for Airoha AN8855 DSA switch
+endef
+
+$(eval $(call KernelPackage,dsa-an8855))
+
 define KernelPackage/dsa-mv88e6xxx
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=Marvell MV88E6XXX DSA Switch

diff --git a/target/linux/mediatek/dts/mt7981b-xiaomi-mi-router-common.dtsi b/target/linux/mediatek/dts/mt7981b-xiaomi-mi-router-common.dtsi
@@ -83,6 +83,16 @@
 		interrupt-parent = <&pio>;
 		interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
 	};
+
+	switch2: switch@1 {
+		compatible = "airoha,an8855";
+		reg = <1>;
+		reset-gpios = <&pio 39 GPIO_ACTIVE_HIGH>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		interrupt-parent = <&pio>;
+		interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+	};
 };
 
 &switch {
@@ -124,6 +134,46 @@
 	};
 };
 
+&switch2 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			label = "wan";
+		};
+
+		port@1 {
+			reg = <1>;
+			label = "lan2";
+		};
+
+		port@2 {
+			reg = <2>;
+			label = "lan3";
+		};
+
+		port@3 {
+			reg = <3>;
+			label = "lan4";
+		};
+
+		port@5 {
+			reg = <5>;
+			label = "cpu";
+			ethernet = <&gmac0>;
+			phy-mode = "2500base-x";
+
+			fixed-link {
+				speed = <2500>;
+				full-duplex;
+				pause;
+			};
+		};
+	};
+};
+
 &spi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi0_flash_pins>;

diff --git a/target/linux/mediatek/files-6.6/drivers/net/dsa/airoha/an8855/Kconfig b/target/linux/mediatek/files-6.6/drivers/net/dsa/airoha/an8855/Kconfig
@@ -0,0 +1,10 @@
+
+config NET_DSA_AN8855
+	tristate "Airoha AN8855 Ethernet switch support"
+	depends on NET_DSA
+	select NET_DSA_TAG_AIROHA
+	help
+	  AN8855 support 2.5G speed and managed by SMI interface.
+	  This enables support for the Airoha AN8855 Ethernet switch
+	  chip.
+	  To compile this driver as a module, choose M here.
diff --git a/target/linux/mediatek/files-6.6/drivers/net/dsa/airoha/an8855/Makefile b/target/linux/mediatek/files-6.6/drivers/net/dsa/airoha/an8855/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for Airoha AN8855 gigabit switch
+#
+obj-$(CONFIG_NET_DSA_AN8855)	+= an8855-dsa.o
+an8855-dsa-objs			:= an8855.o an8855_nl.o an8855_phy.o