diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/302-dts-0096-arm64-dts-fsl-ls1028a-Disable-eno3-and-make-swp5-the.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/302-dts-0096-arm64-dts-fsl-ls1028a-Disable-eno3-and-make-swp5-the.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/302-dts-0096-arm64-dts-fsl-ls1028a-Disable-eno3-and-make-swp5-the.patch b/target/linux/layerscape/patches-5.4/302-dts-0096-arm64-dts-fsl-ls1028a-Disable-eno3-and-make-swp5-the.patch new file mode 100644 index 0000000000..4a3eaaa0aa --- /dev/null +++ b/target/linux/layerscape/patches-5.4/302-dts-0096-arm64-dts-fsl-ls1028a-Disable-eno3-and-make-swp5-the.patch @@ -0,0 +1,63 @@ +From 9344f58d60a0a53ec39e7c5d75021843e859970f Mon Sep 17 00:00:00 2001 +From: Vladimir Oltean <vladimir.oltean@nxp.com> +Date: Fri, 29 Nov 2019 03:18:32 +0200 +Subject: [PATCH] arm64: dts: fsl: ls1028a: Disable eno3 and make swp5 the + Felix CPU port + +This patch returns to the switch port setup from BSP 0.2, where the +switch only had a single Ethernet connection to the CPU, via a tagging +interface. Choose eno2 for this purpose, as it has higher bandwidth and +also supports TSN offloads. + +The reason is that the switch is not able to do DSA tags on 2 CPU ports +at the same time, and it is confusing to have so many ports with no +clear indication which should be used for what (a "data" port and a +"control" port). + +We don't revert to the BSP 0.2 RCW configuration, however. The ENETC +port 3 is still enabled in the RCW, however it is not probed by Linux by +default, since the large majority of use cases will not need it. For +those that do (like originating 802.1CB traffic from the CPU), it can be +enabled back by simply reverting this device tree change. + +Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> +--- + arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi ++++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +@@ -755,7 +755,7 @@ + #address-cells = <1>; + #size-cells = <0>; + }; +- ethernet@0,2 { ++ enetc_port2: ethernet@0,2 { + compatible = "fsl,enetc"; + reg = <0x000200 0 0 0 0>; + fixed-link { +@@ -794,6 +794,7 @@ + /* internal to-cpu ports */ + port@4 { + reg = <4>; ++ ethernet = <&enetc_port2>; + phy-mode = "gmii"; + + fixed-link { +@@ -803,7 +804,6 @@ + }; + port@5 { + reg = <5>; +- ethernet = <&enetc_port3>; + phy-mode = "gmii"; + + fixed-link { +@@ -816,6 +816,8 @@ + enetc_port3: ethernet@0,6 { + compatible = "fsl,enetc"; + reg = <0x000600 0 0 0 0>; ++ status = "disabled"; ++ + fixed-link { + speed = <1000>; + full-duplex; |