openwrt/target/linux/layerscape/patches-5.4/302-dts-0096-arm64-dts-fsl-ls1028a-Disable-eno3-and-make-swp5-the.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

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2.0 KiB
Diff

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;