# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/dsa/qca8k.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Atheros QCA83xx switch family
maintainers:
- John Crispin <john@phrozen.org>
description:
If the QCA8K switch is connect to an SoC's external mdio-bus, each subnode
describing a port needs to have a valid phandle referencing the internal PHY
it is connected to. This is because there is no N:N mapping of port and PHY
ID. To declare the internal mdio-bus configuration, declare an MDIO node in
the switch node and declare the phandle for the port, referencing the internal
PHY it is connected to. In this config, an internal mdio-bus is registered and
the MDIO master is used for communication. Mixed external and internal
mdio-bus configurations are not supported by the hardware.
Each phy has at most 3 LEDs connected and can be declared
using the standard LEDs structure.
properties:
compatible:
oneOf:
- enum:
- qca,qca8327
- qca,qca8328
- qca,qca8334
- qca,qca8337
description: |
qca,qca8328: referenced as AR8328(N)-AK1(A/B) QFN 176 pin package
qca,qca8327: referenced as AR8327(N)-AL1A DR-QFN 148 pin package
qca,qca8334: referenced as QCA8334-AL3C QFN 88 pin package
qca,qca8337: referenced as QCA8337N-AL3(B/C) DR-QFN 148 pin package
reg:
maxItems: 1
reset-gpios:
description:
GPIO to be used to reset the whole device
maxItems: 1
qca,ignore-power-on-sel:
$ref: /schemas/types.yaml#/definitions/flag
description:
Ignore power-on pin strapping to configure LED open-drain or EEPROM
presence. This is needed for devices with incorrect configuration or when
the OEM has decided not to use pin strapping and falls back to SW regs.
qca,led-open-drain:
$ref: /schemas/types.yaml#/definitions/flag
description:
Set LEDs to open-drain mode. This requires the qca,ignore-power-on-sel to
be set, otherwise the driver will fail at probe. This is required if the
OEM does not use pin strapping to set this mode and prefers to set it
using SW regs. The pin strappings related to LED open-drain mode are
B68 on the QCA832x and B49 on the QCA833x.
mdio:
$ref: /schemas/net/mdio.yaml#
unevaluatedProperties: false
description: Qca8k switch have an internal mdio to access switch port.
If this is not present, the legacy mapping is used and the
internal mdio access is used.
With the legacy mapping the reg corresponding to the internal
mdio is the switch reg with an offset of -1.
$ref: dsa.yaml#
patternProperties:
"^(ethernet-)?ports$":
type: object
patternProperties:
"^(ethernet-)?port@[0-6]$":
type: object
description: Ethernet switch ports
$ref: dsa-port.yaml#
properties:
qca,sgmii-rxclk-falling-edge:
$ref: /schemas/types.yaml#/definitions/flag
description:
Set the receive clock phase to falling edge. Mostly commonly used on
the QCA8327 with CPU port 0 set to SGMII.
qca,sgmii-txclk-falling-edge:
$ref: /schemas/types.yaml#/definitions/flag
description:
Set the transmit clock phase to falling edge.
qca,sgmii-enable-pll:
$ref: /schemas/types.yaml#/definitions/flag
description:
For SGMII CPU port, explicitly enable PLL, TX and RX chain along with
Signal Detection. On the QCA8327 this should not be enabled, otherwise
the SGMII port will not initialize. When used on the QCA8337, revision 3
or greater, a warning will be displayed. When the CPU port is set to
SGMII on the QCA8337, it is advised to set this unless a communication
issue is observed.
unevaluatedProperties: false
oneOf:
- required:
- ports
- required:
- ethernet-ports
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
mdio {
#address-cells = <1>;
#size-cells = <0>;
external_phy_port1: ethernet-phy@0 {
reg = <0>;
};
external_phy_port2: ethernet-phy@1 {
reg = <1>;
};
external_phy_port3: ethernet-phy@2 {
reg = <2>;
};
external_phy_port4: ethernet-phy@3 {
reg = <3>;
};
external_phy_port5: ethernet-phy@4 {
reg = <4>;
};
switch@10 {
compatible = "qca,qca8337";
reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
reg = <0x10>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
ethernet = <&gmac1>;
phy-mode = "rgmii";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@1 {
reg = <1>;
label = "lan1";
phy-handle = <&external_phy_port1>;
};
port@2 {
reg = <2>;
label = "lan2";
phy-handle = <&external_phy_port2>;
};
port@3 {
reg = <3>;
label = "lan3";
phy-handle = <&external_phy_port3>;
};
port@4 {
reg = <4>;
label = "lan4";
phy-handle = <&external_phy_port4>;
};
port@5 {
reg = <5>;
label = "wan";
phy-handle = <&external_phy_port5>;
};
};
};
};
- |
#include <dt-bindings/gpio/gpio.h>
mdio {
#address-cells = <1>;
#size-cells = <0>;
switch@10 {
compatible = "qca,qca8337";
reset-gpios = <&gpio 42 GPIO_ACTIVE_LOW>;
reg = <0x10>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
ethernet = <&gmac1>;
phy-mode = "rgmii";
fixed-link {
speed = <1000>;
full-duplex;
};
};
port@1 {
reg = <1>;
label = "lan1";
phy-mode = "internal";
phy-handle = <&internal_phy_port1>;
leds {
#address-cells = <1>;
#size-cells = <0>;
led@0 {
reg = <0>;
color = <LED_COLOR_ID_WHITE>;
function = LED_FUNCTION_LAN;
default-state = "keep";
};
led@1 {
reg = <1>;
color = <LED_COLOR_ID_AMBER>;
function = LED_FUNCTION_LAN;
default-state = "keep";
};
};
};
port@2 {
reg = <2>;
label = "lan2";
phy-mode = "internal";
phy-handle = <&internal_phy_port2>;
};
port@3 {
reg = <3>;
label = "lan3";
phy-mode = "internal";
phy-handle = <&internal_phy_port3>;
};
port@4 {
reg = <4>;
label = "lan4";
phy-mode = "internal";
phy-handle = <&internal_phy_port4>;
};
port@5 {
reg = <5>;
label = "wan";
phy-mode = "internal";
phy-handle = <&internal_phy_port5>;
};
port@6 {
reg = <0>;
ethernet = <&gmac1>;
phy-mode = "sgmii";
qca,sgmii-rxclk-falling-edge;
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
mdio {
#address-cells = <1>;
#size-cells = <0>;
internal_phy_port1: ethernet-phy@0 {
reg = <0>;
};
internal_phy_port2: ethernet-phy@1 {
reg = <1>;
};
internal_phy_port3: ethernet-phy@2 {
reg = <2>;
};
internal_phy_port4: ethernet-phy@3 {
reg = <3>;
};
internal_phy_port5: ethernet-phy@4 {
reg = <4>;
};
};
};
};