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arm64: dts: renesas: r8a779f0: Disable rswitch ports by default

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The Renesas Ethernet Switch has three independent ports.  Each port can
act as a separate interface, and can be enabled or disabled
independently.  Currently all ports are enabled by default, hence board
DTS files that enable the switch must disable all unused ports
explicitly.

Disable all ports by default, and explicitly enable ports that are used,
next to their configuration.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://lore.kernel.org/c4688de8e3289ad82c2cd85f0893eac660ac8890.1737649969.git.geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven 2025-01-23 17:37:10 +01:00
parent cc018b98a9
commit ab419f5b4a
3 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/boot/dts/renesas/r8a779f0-spider-ethernet.dtsi
View File

@ -57,6 +57,7 @@ &rswitch_port0 {
phy-handle = <&u101>;
phy-mode = "sgmii";
phys = <&eth_serdes 0>;
status = "okay";
mdio {
#address-cells = <1>;
@ -75,6 +76,7 @@ &rswitch_port1 {
phy-handle = <&u201>;
phy-mode = "sgmii";
phys = <&eth_serdes 1>;
status = "okay";
mdio {
#address-cells = <1>;
@ -93,6 +95,7 @@ &rswitch_port2 {
phy-handle = <&u301>;
phy-mode = "sgmii";
phys = <&eth_serdes 2>;
status = "okay";
mdio {
#address-cells = <1>;

3
arch/arm64/boot/dts/renesas/r8a779f0.dtsi
View File

@ -977,14 +977,17 @@ ethernet-ports {
rswitch_port0: port@0 {
reg = <0>;
phys = <&eth_serdes 0>;
status = "disabled";
};
rswitch_port1: port@1 {
reg = <1>;
phys = <&eth_serdes 1>;
status = "disabled";
};
rswitch_port2: port@2 {
reg = <2>;
phys = <&eth_serdes 2>;
status = "disabled";
};
};
};

6
arch/arm64/boot/dts/renesas/r8a779f4-s4sk.dts
View File

@ -187,6 +187,7 @@ &rswitch_port0 {
phy-handle = <&ic99>;
phy-mode = "sgmii";
phys = <&eth_serdes 0>;
status = "okay";
mdio {
#address-cells = <1>;
@ -205,6 +206,7 @@ &rswitch_port1 {
phy-handle = <&ic102>;
phy-mode = "sgmii";
phys = <&eth_serdes 1>;
status = "okay";
mdio {
#address-cells = <1>;
@ -218,10 +220,6 @@ ic102: ethernet-phy@2 {
};
};
&rswitch_port2 {
status = "disabled";
};
&rwdt {
timeout-sec = <60>;
status = "okay";