From 0641967458a587033390c7d33dbaf715125b2242 Mon Sep 17 00:00:00 2001 From: Jan Hoffmann Date: Sat, 13 Jul 2024 14:49:08 +0200 Subject: [PATCH] omap: switch back to old cpsw ethernet driver The new cpsw-switch driver reserves VLAN 1 for internal use, which conflicts with the default network configuration of OpenWrt. Switch back to the older cpsw driver to make the network connection on the affected devices (BeagleBone Black and AM335x EVM) usable again. Signed-off-by: Jan Hoffmann --- .../900-use-cpsw-ethernet-driver.patch | 93 +++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 target/linux/omap/patches/900-use-cpsw-ethernet-driver.patch diff --git a/target/linux/omap/patches/900-use-cpsw-ethernet-driver.patch b/target/linux/omap/patches/900-use-cpsw-ethernet-driver.patch new file mode 100644 index 000000000000..17c07fbdfba1 --- /dev/null +++ b/target/linux/omap/patches/900-use-cpsw-ethernet-driver.patch @@ -0,0 +1,93 @@ +From: Jan Hoffmann +Date: Sat, 27 Apr 2024 20:41:43 +0200 +Subject: ARM: dts: Use cpsw ethernet driver for some am335x devices + +The new cpsw-switch driver requires a vid for every port which is +reserved for internal usage (defaulting to 1 and 2). As a result, some +network configurations are impossible, such as a bridge with +default_pvid of 1 (even if it is not vlan aware). + +As a simple workaround, the ti,dual-emac-pvid property could be changed +to another value, but that would just shift the problem. Instead, switch +some devices back to the older cpsw ethernet driver. + +(This patch is not suitable for upstreaming, it just makes the affected +devices in OpenWrt usable again with the default network config.) + +Signed-off-by: Jan Hoffmann +--- + +--- a/arch/arm/boot/dts/am335x-bone-common.dtsi ++++ b/arch/arm/boot/dts/am335x-bone-common.dtsi +@@ -353,27 +353,24 @@ + }; + }; + +-&cpsw_port1 { ++&cpsw_emac0 { + phy-handle = <ðphy0>; + phy-mode = "mii"; +- ti,dual-emac-pvid = <1>; + }; + +-&cpsw_port2 { +- status = "disabled"; +-}; +- +-&mac_sw { ++&mac { ++ slaves = <1>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&cpsw_default>; + pinctrl-1 = <&cpsw_sleep>; + status = "okay"; + }; + +-&davinci_mdio_sw { ++&davinci_mdio { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&davinci_mdio_default>; + pinctrl-1 = <&davinci_mdio_sleep>; ++ status = "okay"; + + ethphy0: ethernet-phy@0 { + reg = <0>; +--- a/arch/arm/boot/dts/am335x-evm.dts ++++ b/arch/arm/boot/dts/am335x-evm.dts +@@ -682,31 +682,28 @@ + }; + }; + +-&mac_sw { ++&mac { ++ slaves = <1>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&cpsw_default>; + pinctrl-1 = <&cpsw_sleep>; + status = "okay"; + }; + +-&davinci_mdio_sw { ++&davinci_mdio { + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&davinci_mdio_default>; + pinctrl-1 = <&davinci_mdio_sleep>; ++ status = "okay"; + + ethphy0: ethernet-phy@0 { + reg = <0>; + }; + }; + +-&cpsw_port1 { ++&cpsw_emac0 { + phy-handle = <ðphy0>; + phy-mode = "rgmii-id"; +- ti,dual-emac-pvid = <1>; +-}; +- +-&cpsw_port2 { +- status = "disabled"; + }; + + &tscadc { -- 2.30.2