# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/wireless/mediatek,mt76.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek mt76 wireless devices
maintainers:
- Felix Fietkau <nbd@nbd.name>
- Lorenzo Bianconi <lorenzo@kernel.org>
- Ryder Lee <ryder.lee@mediatek.com>
description: |
This node provides properties for configuring the MediaTek mt76xx
wireless device. The node is expected to be specified as a child
node of the PCI controller to which the wireless chip is connected.
Alternatively, it can specify the wireless part of the MT7628/MT7688
or MT7622/MT7986 SoC.
allOf:
- $ref: ieee80211.yaml#
properties:
compatible:
enum:
- mediatek,mt76
- mediatek,mt7628-wmac
- mediatek,mt7622-wmac
- mediatek,mt7981-wmac
- mediatek,mt7986-wmac
reg:
minItems: 1
maxItems: 3
description:
MT7986 should contain 3 regions consys, dcm, and sku, in this order.
interrupts:
maxItems: 1
power-domains:
maxItems: 1
memory-region:
maxItems: 1
resets:
maxItems: 1
description:
Specify the consys reset for mt7986.
reset-names:
const: consys
clocks:
maxItems: 2
description:
Specify the consys clocks for mt7986.
clock-names:
items:
- const: mcu
- const: ap2conn
mediatek,infracfg:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the infrastructure bus fabric syscon node.
This property is MT7622 specific
ieee80211-freq-limit: true
nvmem-cells:
items:
- description: NVMEM cell with EEPROM
nvmem-cell-names:
items:
- const: eeprom
mediatek,eeprom-data:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
EEPROM data embedded as array.
mediatek,mtd-eeprom:
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
- items:
- description: phandle to MTD partition
- description: offset containing EEPROM data
description:
Phandle to a MTD partition + offset containing EEPROM data
deprecated: true
big-endian:
$ref: /schemas/types.yaml#/definitions/flag
description:
Specify if the radio eeprom partition is written in big-endian
mediatek,eeprom-merge-otp:
type: boolean
description:
Merge EEPROM data with OTP data. Can be used on boards where the flash
calibration data is generic and specific calibration data should be
pulled from the OTP ROM
mediatek,disable-radar-background:
type: boolean
description:
Disable/enable radar/CAC detection running on a dedicated offchannel
chain available on some hw.
Background radar/CAC detection allows to avoid the CAC downtime
switching on a different channel during CAC detection on the selected
radar channel.
led:
type: object
$ref: /schemas/leds/common.yaml#
additionalProperties: false
properties:
led-active-low:
description:
LED is enabled with ground signal.
type: boolean
led-sources:
maxItems: 1
power-limits:
type: object
additionalProperties: false
patternProperties:
"^r[0-9]+":
type: object
additionalProperties: false
properties:
regdomain:
$ref: /schemas/types.yaml#/definitions/string
description:
Regdomain refers to a legal regulatory region. Different
countries define different levels of allowable transmitter
power, time that a channel can be occupied, and different
available channels
enum:
- FCC
- ETSI
- JP
patternProperties:
"^txpower-[256]g$":
type: object
additionalProperties: false
patternProperties:
"^b[0-9]+$":
type: object
additionalProperties: false
properties:
channels:
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 2
maxItems: 2
description:
Pairs of first and last channel number of the selected
band
rates-cck:
$ref: /schemas/types.yaml#/definitions/uint8-array
minItems: 4
maxItems: 4
description:
4 half-dBm per-rate power limit values
rates-ofdm:
$ref: /schemas/types.yaml#/definitions/uint8-array
minItems: 8
maxItems: 8
description:
8 half-dBm per-rate power limit values
rates-mcs:
$ref: /schemas/types.yaml#/definitions/uint8-matrix
description:
Sets of per-rate power limit values for 802.11n/802.11ac
rates for multiple channel bandwidth settings.
Each set starts with the number of channel bandwidth
settings for which the rate set applies, followed by
either 8 or 10 power limit values. The order of the
channel bandwidth settings is 20, 40, 80 and 160 MHz.
maxItems: 4
items:
minItems: 9
maxItems: 11
rates-ru:
$ref: /schemas/types.yaml#/definitions/uint8-matrix
description:
Sets of per-rate power limit values for 802.11ax rates
for multiple channel bandwidth or resource unit settings.
Each set starts with the number of channel bandwidth or
resource unit settings for which the rate set applies,
followed by 12 power limit values. The order of the
channel resource unit settings is RU26, RU52, RU106,
RU242/SU20, RU484/SU40, RU996/SU80 and RU2x996/SU160.
items:
minItems: 13
maxItems: 13
txs-delta:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
Half-dBm power delta for different numbers of antennas
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
pcie0 {
#address-cells = <3>;
#size-cells = <2>;
wifi@0,0 {
compatible = "mediatek,mt76";
reg = <0x0000 0 0 0 0>;
ieee80211-freq-limit = <5000000 6000000>;
mediatek,mtd-eeprom = <&factory 0x8000>;
big-endian;
led {
led-sources = <2>;
};
power-limits {
r0 {
regdomain = "FCC";
txpower-5g {
b0 {
channels = <36 48>;
rates-ofdm = /bits/ 8 <23 23 23 23 23 23 23 23>;
rates-mcs = /bits/ 8 <1 23 23 23 23 23 23 23 23 23 23>,
/bits/ 8 <3 22 22 22 22 22 22 22 22 22 22>;
rates-ru = /bits/ 8 <3 22 22 22 22 22 22 22 22 22 22 22 22>,
/bits/ 8 <4 20 20 20 20 20 20 20 20 20 20 20 20>;
};
b1 {
channels = <100 181>;
rates-ofdm = /bits/ 8 <14 14 14 14 14 14 14 14>;
rates-mcs = /bits/ 8 <4 14 14 14 14 14 14 14 14 14 14>;
txs-delta = <12 9 6>;
rates-ru = /bits/ 8 <7 14 14 14 14 14 14 14 14 14 14 14 14>;
};
};
};
};
};
};
- |
wifi@10300000 {
compatible = "mediatek,mt7628-wmac";
reg = <0x10300000 0x100000>;
interrupt-parent = <&cpuintc>;
interrupts = <6>;
nvmem-cells = <&eeprom>;
nvmem-cell-names = "eeprom";
};
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
wifi@18000000 {
compatible = "mediatek,mt7622-wmac";
reg = <0x10300000 0x100000>;
interrupts = <GIC_SPI 211 IRQ_TYPE_LEVEL_LOW>;
mediatek,infracfg = <&infracfg>;
power-domains = <&scpsys 3>;
};
- |
wifi@18000000 {
compatible = "mediatek,mt7986-wmac";
resets = <&watchdog 23>;
reset-names = "consys";
reg = <0x18000000 0x1000000>,
<0x10003000 0x1000>,
<0x11d10000 0x1000>;
interrupts = <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&topckgen 50>,
<&topckgen 62>;
clock-names = "mcu", "ap2conn";
memory-region = <&wmcpu_emi>;
};