linux/arch/mips/boot/dts/mscc/ocelot_pcb120.dts
Vladimir Oltean 0181f6f19c MIPS: mscc: ocelot: disable all switch ports by default
The ocelot switch driver used to ignore ports which do not have a
phy-handle property and not probe those, but this is not quite ok since
it is valid to not have a phy-handle property if there is a fixed-link.

It seems that checking for a phy-handle was a proxy for the proper check
which is for the status, but that doesn't make a lot of sense, since the
ocelot driver already iterates using for_each_available_child_of_node
which skips the disabled ports, so I have no idea.

Anyway, a widespread pattern in device trees is for a SoC dtsi to
disable by default all hardware, and let board dts files enable what is
used. So let's do that and enable only the ports with a phy-handle in
the pcb120 and pcb123 device tree files.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-08-21 10:38:29 +02:00

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2.1 KiB
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// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/* Copyright (c) 2017 Microsemi Corporation */
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/phy/phy-ocelot-serdes.h>
#include "ocelot.dtsi"
/ {
compatible = "mscc,ocelot-pcb120", "mscc,ocelot";
chosen {
stdout-path = "serial0:115200n8";
};
memory@0 {
device_type = "memory";
reg = <0x0 0x0e000000>;
};
};
&gpio {
phy_int_pins: phy_int_pins {
pins = "GPIO_4";
function = "gpio";
};
phy_load_save_pins: phy_load_save_pins {
pins = "GPIO_10";
function = "ptp2";
};
};
&mdio0 {
status = "okay";
};
&mdio1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&miim1>, <&phy_int_pins>, <&phy_load_save_pins>;
phy7: ethernet-phy@0 {
reg = <0>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gpio>;
load-save-gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
};
phy6: ethernet-phy@1 {
reg = <1>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gpio>;
load-save-gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
};
phy5: ethernet-phy@2 {
reg = <2>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gpio>;
load-save-gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
};
phy4: ethernet-phy@3 {
reg = <3>;
interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
interrupt-parent = <&gpio>;
load-save-gpios = <&gpio 10 GPIO_ACTIVE_HIGH>;
};
};
&port0 {
status = "okay";
phy-handle = <&phy0>;
};
&port1 {
status = "okay";
phy-handle = <&phy1>;
};
&port2 {
status = "okay";
phy-handle = <&phy2>;
};
&port3 {
status = "okay";
phy-handle = <&phy3>;
};
&port4 {
status = "okay";
phy-handle = <&phy7>;
phy-mode = "sgmii";
phys = <&serdes 4 SERDES1G(2)>;
};
&port5 {
status = "okay";
phy-handle = <&phy4>;
phy-mode = "sgmii";
phys = <&serdes 5 SERDES1G(5)>;
};
&port6 {
status = "okay";
phy-handle = <&phy6>;
phy-mode = "sgmii";
phys = <&serdes 6 SERDES1G(3)>;
};
&port9 {
status = "okay";
phy-handle = <&phy5>;
phy-mode = "sgmii";
phys = <&serdes 9 SERDES1G(4)>;
};
&uart0 {
status = "okay";
};
&uart2 {
status = "okay";
};