linux: devicetree: Early experimental support for Ethernet switching …

…with DSA
CFSworks · Mar 18, 2024 · 647b965 · 647b965
1 parent 77d8863
commit 647b965
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Showing 5 changed files with 1,673 additions and 4 deletions.
diff --git a/tp2bmc/board/tp2bmc/boot.scr b/tp2bmc/board/tp2bmc/boot.scr
@@ -20,7 +20,4 @@ load ${devtype} ${devnum}:${distro_bootpart} ${loadaddr} /boot/zImage
 load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} /boot/${fdt_filename}
 fdt addr ${fdt_addr_r}
 
-# Our build of Linux doesn't yet know how to manage the switch, so:
-run ethsw_do_reset
-
 bootz ${loadaddr} - ${fdt_addr_r}
diff --git a/tp2bmc/board/tp2bmc/linux_defconfig b/tp2bmc/board/tp2bmc/linux_defconfig
@@ -52,6 +52,9 @@ CONFIG_IP_MULTIPLE_TABLES=y
 CONFIG_INET_IPCOMP=y
 CONFIG_INET_UDP_DIAG=y
 CONFIG_IPV6_TUNNEL=y
+CONFIG_BRIDGE=y
+CONFIG_NET_DSA=y
+CONFIG_NET_DSA_TAG_RTL4_A=y
 CONFIG_NETLINK_DIAG=y
 CONFIG_UEVENT_HELPER=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
@@ -66,6 +69,9 @@ CONFIG_EEPROM_AT24=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_NETDEVICES=y
+CONFIG_NET_DSA_REALTEK=y
+# CONFIG_NET_DSA_REALTEK_MDIO is not set
+CONFIG_NET_DSA_REALTEK_RTL8365MB=y
 # CONFIG_NET_VENDOR_ALACRITECH is not set
 # CONFIG_NET_VENDOR_ALLWINNER is not set
 # CONFIG_NET_VENDOR_AMAZON is not set
@@ -114,7 +120,6 @@ CONFIG_STMMAC_ETH=y
 # CONFIG_NET_VENDOR_WANGXUN is not set
 # CONFIG_NET_VENDOR_WIZNET is not set
 # CONFIG_NET_VENDOR_XILINX is not set
-CONFIG_REALTEK_PHY=y
 # CONFIG_USB_NET_DRIVERS is not set
 # CONFIG_WLAN is not set
 CONFIG_INPUT_EVDEV=y

diff --git a/tp2bmc/board/tp2bmc/sun8i-t113s-turing-pi2.dtsi b/tp2bmc/board/tp2bmc/sun8i-t113s-turing-pi2.dtsi
@@ -218,6 +218,90 @@
 
 		pagesize = <16>;
 	};
+
+	ethernet-switch@5c {
+		compatible = "realtek,rtl8365mb";
+		reg = <0x5c>;
+
+		reset-gpios = <&pio 6 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+
+		ethernet-ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ethernet-port@0 {
+				reg = <0>;
+				label = "node1";
+				phy-handle = <&ethphy0>;
+				phy-mode = "internal";
+			};
+			ethernet-port@1 {
+				reg = <1>;
+				label = "node2";
+				phy-handle = <&ethphy1>;
+				phy-mode = "internal";
+			};
+			ethernet-port@2 {
+				reg = <2>;
+				label = "node3";
+				phy-handle = <&ethphy2>;
+				phy-mode = "internal";
+			};
+			ethernet-port@3 {
+				reg = <3>;
+				label = "node4";
+				phy-handle = <&ethphy3>;
+				phy-mode = "internal";
+			};
+			ethernet-port@4 {
+				reg = <4>;
+				label = "cpu";
+				ethernet = <&emac>;
+				phy-handle = <&ethphy4>;
+				phy-mode = "internal";
+			};
+			ethernet-port@5 {
+				reg = <5>;
+				label = "ge0";
+				phy-handle = <&ethphy5>;
+				phy-mode = "internal";
+			};
+			ethernet-port@6 {
+				reg = <6>;
+				label = "ge1";
+				phy-handle = <&ethphy6>;
+				phy-mode = "internal";
+			};
+		};
+
+		mdio {
+			compatible = "realtek,smi-mdio";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ethphy0: ethernet-phy@0 {
+				reg = <0>;
+			};
+			ethphy1: ethernet-phy@1 {
+				reg = <1>;
+			};
+			ethphy2: ethernet-phy@2 {
+				reg = <2>;
+			};
+			ethphy3: ethernet-phy@3 {
+				reg = <3>;
+			};
+			ethphy4: ethernet-phy@4 {
+				reg = <4>;
+			};
+			ethphy5: ethernet-phy@5 {
+				reg = <5>;
+			};
+			ethphy6: ethernet-phy@6 {
+				reg = <6>;
+			};
+		};
+	};
 };
 
 &emac {