netdev - [PATCH v1] arm64: dts: fsl: ls1028a-rdb: Add dts file to choose swp5 as dsa master

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Date:   Fri, 13 Aug 2021 11:01:55 +0800
From:   hongbo.wang@....com
To:     hongjun.chen@....com, po.liu@....com, shawnguo@...nel.org,
        leoyang.li@....com, vladimir.oltean@....com, robh+dt@...nel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        andrew@...n.ch, f.fainelli@...il.com, vivien.didelot@...il.com,
        davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     hongbo wang <hongbo.wang@....com>
Subject: [PATCH v1] arm64: dts: fsl: ls1028a-rdb: Add dts file to choose swp5 as dsa master

From: hongbo wang <hongbo.wang@....com>

some use cases want to use swp4-eno2 link as ordinary data path,
so we can enable swp5 as dsa master, the data from kernel can
be transmitted to eno3, then send to swp5 via internal link, switch will
forward it to swp0-3.

the data to kernel will come from swp0-3, and received by kernel
via swp5-eno3 link.

Signed-off-by: hongbo wang <hongbo.wang@....com>
---
 arch/arm64/boot/dts/freescale/Makefile        |  1 +
 .../fsl-ls1028a-rdb-dsa-swp5-eno3.dts         | 27 +++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb-dsa-swp5-eno3.dts

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 25806c4924cb..032aaf52079a 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -12,6 +12,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1028a-kontron-sl28-var3-ads2.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1028a-kontron-sl28-var4.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1028a-qds.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1028a-rdb.dtb
+dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1028a-rdb-dsa-swp5-eno3.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1043a-qds.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1043a-rdb.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1046a-frwy.dtb
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb-dsa-swp5-eno3.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb-dsa-swp5-eno3.dts
new file mode 100644
index 000000000000..a88396c137a1
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb-dsa-swp5-eno3.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for NXP LS1028A RDB with dsa master swp5-eno3.
+ *
+ * Copyright 2018-2021 NXP
+ *
+ * Hongbo Wang <hongbo.wang@....com>
+ *
+ */
+
+/dts-v1/;
+#include "fsl-ls1028a-rdb.dts"
+
+&enetc_port3 {
+	status = "okay";
+};
+
+&mscc_felix_port4 {
+	label = "swp4";
+	/delete-property/ ethernet;
+	status = "okay";
+};
+
+&mscc_felix_port5 {
+	ethernet = <&enetc_port3>;
+	status = "okay";
+};
-- 
2.27.0