# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/snps,dwmac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Synopsys DesignWare MAC
maintainers:
- Alexandre Torgue <alexandre.torgue@foss.st.com>
- Giuseppe Cavallaro <peppe.cavallaro@st.com>
- Jose Abreu <joabreu@synopsys.com>
# Select every compatible, including the deprecated ones. This way, we
# will be able to report a warning when we have that compatible, since
# we will validate the node thanks to the select, but won't report it
# as a valid value in the compatible property description
select:
properties:
compatible:
contains:
enum:
- snps,dwmac
- snps,dwmac-3.40a
- snps,dwmac-3.50a
- snps,dwmac-3.610
- snps,dwmac-3.70a
- snps,dwmac-3.710
- snps,dwmac-4.00
- snps,dwmac-4.10a
- snps,dwmac-4.20a
- snps,dwmac-5.10a
- snps,dwmac-5.20
- snps,dwxgmac
- snps,dwxgmac-2.10
# Deprecated
- st,spear600-gmac
required:
- compatible
properties:
# We need to include all the compatibles from schemas that will
# include that schemas, otherwise compatible won't validate for
# those.
compatible:
contains:
enum:
- allwinner,sun7i-a20-gmac
- allwinner,sun8i-a83t-emac
- allwinner,sun8i-h3-emac
- allwinner,sun8i-r40-gmac
- allwinner,sun8i-v3s-emac
- allwinner,sun50i-a64-emac
- amlogic,meson6-dwmac
- amlogic,meson8b-dwmac
- amlogic,meson8m2-dwmac
- amlogic,meson-gxbb-dwmac
- amlogic,meson-axg-dwmac
- ingenic,jz4775-mac
- ingenic,x1000-mac
- ingenic,x1600-mac
- ingenic,x1830-mac
- ingenic,x2000-mac
- loongson,ls2k-dwmac
- loongson,ls7a-dwmac
- qcom,qcs404-ethqos
- qcom,sa8775p-ethqos
- qcom,sc8280xp-ethqos
- qcom,sm8150-ethqos
- renesas,r9a06g032-gmac
- renesas,rzn1-gmac
- rockchip,px30-gmac
- rockchip,rk3128-gmac
- rockchip,rk3228-gmac
- rockchip,rk3288-gmac
- rockchip,rk3328-gmac
- rockchip,rk3366-gmac
- rockchip,rk3368-gmac
- rockchip,rk3588-gmac
- rockchip,rk3399-gmac
- rockchip,rv1108-gmac
- snps,dwmac
- snps,dwmac-3.40a
- snps,dwmac-3.50a
- snps,dwmac-3.610
- snps,dwmac-3.70a
- snps,dwmac-3.710
- snps,dwmac-4.00
- snps,dwmac-4.10a
- snps,dwmac-4.20a
- snps,dwmac-5.10a
- snps,dwmac-5.20
- snps,dwxgmac
- snps,dwxgmac-2.10
- starfive,jh7110-dwmac
reg:
minItems: 1
maxItems: 2
interrupts:
minItems: 1
items:
- description: Combined signal for various interrupt events
- description: The interrupt to manage the remote wake-up packet detection
- description: The interrupt that occurs when Rx exits the LPI state
interrupt-names:
minItems: 1
items:
- const: macirq
- enum: [eth_wake_irq, eth_lpi]
- const: eth_lpi
clocks:
minItems: 1
maxItems: 8
additionalItems: true
items:
- description: GMAC main clock
- description: Peripheral registers interface clock
- description:
PTP reference clock. This clock is used for programming the
Timestamp Addend Register. If not passed then the system
clock will be used and this is fine on some platforms.
clock-names:
minItems: 1
maxItems: 8
additionalItems: true
contains:
enum:
- stmmaceth
- pclk
- ptp_ref
resets:
minItems: 1
items:
- description: GMAC stmmaceth reset
- description: AHB reset
reset-names:
minItems: 1
items:
- const: stmmaceth
- const: ahb
power-domains:
maxItems: 1
mac-mode:
$ref: ethernet-controller.yaml#/properties/phy-connection-type
description:
The property is identical to 'phy-mode', and assumes that there is mode
converter in-between the MAC & PHY (e.g. GMII-to-RGMII). This converter
can be passive (no SW requirement), and requires that the MAC operate
in a different mode than the PHY in order to function.
snps,axi-config:
$ref: /schemas/types.yaml#/definitions/phandle
description:
AXI BUS Mode parameters. Phandle to a node that can contain the
following properties
* snps,lpi_en, enable Low Power Interface
* snps,xit_frm, unlock on WoL
* snps,wr_osr_lmt, max write outstanding req. limit
* snps,rd_osr_lmt, max read outstanding req. limit
* snps,kbbe, do not cross 1KiB boundary.
* snps,blen, this is a vector of supported burst length.
* snps,fb, fixed-burst
* snps,mb, mixed-burst
* snps,rb, rebuild INCRx Burst
snps,mtl-rx-config:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Multiple RX Queues parameters. Phandle to a node that
implements the 'rx-queues-config' object described in
this binding.
rx-queues-config:
type: object
properties:
snps,rx-queues-to-use:
$ref: /schemas/types.yaml#/definitions/uint32
description: number of RX queues to be used in the driver
snps,rx-sched-sp:
type: boolean
description: Strict priority
snps,rx-sched-wsp:
type: boolean
description: Weighted Strict priority
allOf:
- if:
required:
- snps,rx-sched-sp
then:
properties:
snps,rx-sched-wsp: false
- if:
required:
- snps,rx-sched-wsp
then:
properties:
snps,rx-sched-sp: false
patternProperties:
"^queue[0-9]$":
description: Each subnode represents a queue.
type: object
properties:
snps,dcb-algorithm:
type: boolean
description: Queue to be enabled as DCB
snps,avb-algorithm:
type: boolean
description: Queue to be enabled as AVB
snps,map-to-dma-channel:
$ref: /schemas/types.yaml#/definitions/uint32
description: DMA channel id to map
snps,route-avcp:
type: boolean
description: AV Untagged Control packets
snps,route-ptp:
type: boolean
description: PTP Packets
snps,route-dcbcp:
type: boolean
description: DCB Control Packets
snps,route-up:
type: boolean
description: Untagged Packets
snps,route-multi-broad:
type: boolean
description: Multicast & Broadcast Packets
snps,priority:
$ref: /schemas/types.yaml#/definitions/uint32
description: Bitmask of the tagged frames priorities assigned to the queue
allOf:
- if:
required:
- snps,dcb-algorithm
then:
properties:
snps,avb-algorithm: false
- if:
required:
- snps,avb-algorithm
then:
properties:
snps,dcb-algorithm: false
- if:
required:
- snps,route-avcp
then:
properties:
snps,route-ptp: false
snps,route-dcbcp: false
snps,route-up: false
snps,route-multi-broad: false
- if:
required:
- snps,route-ptp
then:
properties:
snps,route-avcp: false
snps,route-dcbcp: false
snps,route-up: false
snps,route-multi-broad: false
- if:
required:
- snps,route-dcbcp
then:
properties:
snps,route-avcp: false
snps,route-ptp: false
snps,route-up: false
snps,route-multi-broad: false
- if:
required:
- snps,route-up
then:
properties:
snps,route-avcp: false
snps,route-ptp: false
snps,route-dcbcp: false
snps,route-multi-broad: false
- if:
required:
- snps,route-multi-broad
then:
properties:
snps,route-avcp: false
snps,route-ptp: false
snps,route-dcbcp: false
snps,route-up: false
additionalProperties: false
additionalProperties: false
snps,mtl-tx-config:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Multiple TX Queues parameters. Phandle to a node that
implements the 'tx-queues-config' object described in
this binding.
tx-queues-config:
type: object
properties:
snps,tx-queues-to-use:
$ref: /schemas/types.yaml#/definitions/uint32
description: number of TX queues to be used in the driver
snps,tx-sched-wrr:
type: boolean
description: Weighted Round Robin
snps,tx-sched-wfq:
type: boolean
description: Weighted Fair Queuing
snps,tx-sched-dwrr:
type: boolean
description: Deficit Weighted Round Robin
snps,tx-sched-sp:
type: boolean
description: Strict priority
allOf:
- if:
required:
- snps,tx-sched-wrr
then:
properties:
snps,tx-sched-wfq: false
snps,tx-sched-dwrr: false
snps,tx-sched-sp: false
- if:
required:
- snps,tx-sched-wfq
then:
properties:
snps,tx-sched-wrr: false
snps,tx-sched-dwrr: false
snps,tx-sched-sp: false
- if:
required:
- snps,tx-sched-dwrr
then:
properties:
snps,tx-sched-wrr: false
snps,tx-sched-wfq: false
snps,tx-sched-sp: false
- if:
required:
- snps,tx-sched-sp
then:
properties:
snps,tx-sched-wrr: false
snps,tx-sched-wfq: false
snps,tx-sched-dwrr: false
patternProperties:
"^queue[0-9]$":
description: Each subnode represents a queue.
type: object
properties:
snps,weight:
$ref: /schemas/types.yaml#/definitions/uint32
description: TX queue weight (if using a DCB weight algorithm)
snps,dcb-algorithm:
type: boolean
description: TX queue will be working in DCB
snps,avb-algorithm:
type: boolean
description:
TX queue will be working in AVB.
Queue 0 is reserved for legacy traffic and so no AVB is
available in this queue.
snps,send_slope:
$ref: /schemas/types.yaml#/definitions/uint32
description: enable Low Power Interface
snps,idle_slope:
$ref: /schemas/types.yaml#/definitions/uint32
description: unlock on WoL
snps,high_credit:
$ref: /schemas/types.yaml#/definitions/uint32
description: max write outstanding req. limit
snps,low_credit:
$ref: /schemas/types.yaml#/definitions/uint32
description: max read outstanding req. limit
snps,priority:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Bitmask of the tagged frames priorities assigned to the queue.
When a PFC frame is received with priorities matching the bitmask,
the queue is blocked from transmitting for the pause time specified
in the PFC frame.
allOf:
- if:
required:
- snps,dcb-algorithm
then:
properties:
snps,avb-algorithm: false
- if:
required:
- snps,avb-algorithm
then:
properties:
snps,dcb-algorithm: false
snps,weight: false
additionalProperties: false
additionalProperties: false
snps,reset-gpio:
deprecated: true
maxItems: 1
description:
PHY Reset GPIO
snps,reset-active-low:
deprecated: true
$ref: /schemas/types.yaml#/definitions/flag
description:
Indicates that the PHY Reset is active low
snps,reset-delays-us:
deprecated: true
description:
Triplet of delays. The 1st cell is reset pre-delay in micro
seconds. The 2nd cell is reset pulse in micro seconds. The 3rd
cell is reset post-delay in micro seconds.
minItems: 3
maxItems: 3
snps,aal:
$ref: /schemas/types.yaml#/definitions/flag
description:
Use Address-Aligned Beats
snps,fixed-burst:
$ref: /schemas/types.yaml#/definitions/flag
description:
Program the DMA to use the fixed burst mode
snps,mixed-burst:
$ref: /schemas/types.yaml#/definitions/flag
description:
Program the DMA to use the mixed burst mode
snps,force_thresh_dma_mode:
$ref: /schemas/types.yaml#/definitions/flag
description:
Force DMA to use the threshold mode for both tx and rx
snps,force_sf_dma_mode:
$ref: /schemas/types.yaml#/definitions/flag
description:
Force DMA to use the Store and Forward mode for both tx and
rx. This flag is ignored if force_thresh_dma_mode is set.
snps,en-tx-lpi-clockgating:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enable gating of the MAC TX clock during TX low-power mode
snps,multicast-filter-bins:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Number of multicast filter hash bins supported by this device
instance
snps,perfect-filter-entries:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Number of perfect filter entries supported by this device
instance
snps,ps-speed:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Port selection speed that can be passed to the core when PCS
is supported. For example, this is used in case of SGMII and
MAC2MAC connection.
snps,clk-csr:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Frequency division factor for MDC clock.
mdio:
$ref: mdio.yaml#
unevaluatedProperties: false
description:
Creates and registers an MDIO bus.
properties:
compatible:
const: snps,dwmac-mdio
required:
- compatible
stmmac-axi-config:
type: object
unevaluatedProperties: false
description:
AXI BUS Mode parameters.
properties:
snps,lpi_en:
$ref: /schemas/types.yaml#/definitions/flag
description:
enable Low Power Interface
snps,xit_frm:
$ref: /schemas/types.yaml#/definitions/flag
description:
unlock on WoL
snps,wr_osr_lmt:
$ref: /schemas/types.yaml#/definitions/uint32
description:
max write outstanding req. limit
snps,rd_osr_lmt:
$ref: /schemas/types.yaml#/definitions/uint32
description:
max read outstanding req. limit
snps,kbbe:
$ref: /schemas/types.yaml#/definitions/uint32
description:
do not cross 1KiB boundary.
snps,blen:
$ref: /schemas/types.yaml#/definitions/uint32-array
description:
this is a vector of supported burst length.
minItems: 7
maxItems: 7
snps,fb:
$ref: /schemas/types.yaml#/definitions/flag
description:
fixed-burst
snps,mb:
$ref: /schemas/types.yaml#/definitions/flag
description:
mixed-burst
snps,rb:
$ref: /schemas/types.yaml#/definitions/flag
description:
rebuild INCRx Burst
required:
- compatible
- reg
- interrupts
- interrupt-names
- phy-mode
dependencies:
snps,reset-active-low: ["snps,reset-gpio"]
snps,reset-delays-us: ["snps,reset-gpio"]
allOf:
- $ref: ethernet-controller.yaml#
- if:
properties:
compatible:
contains:
enum:
- allwinner,sun7i-a20-gmac
- allwinner,sun8i-a83t-emac
- allwinner,sun8i-h3-emac
- allwinner,sun8i-r40-gmac
- allwinner,sun8i-v3s-emac
- allwinner,sun50i-a64-emac
- ingenic,jz4775-mac
- ingenic,x1000-mac
- ingenic,x1600-mac
- ingenic,x1830-mac
- ingenic,x2000-mac
- qcom,sa8775p-ethqos
- qcom,sc8280xp-ethqos
- snps,dwmac-3.50a
- snps,dwmac-4.10a
- snps,dwmac-4.20a
- snps,dwmac-5.20
- snps,dwxgmac
- snps,dwxgmac-2.10
- st,spear600-gmac
then:
properties:
snps,pbl:
description:
Programmable Burst Length (tx and rx)
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 4, 8, 16, 32]
snps,txpbl:
description:
Tx Programmable Burst Length. If set, DMA tx will use this
value rather than snps,pbl.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 4, 8, 16, 32]
snps,rxpbl:
description:
Rx Programmable Burst Length. If set, DMA rx will use this
value rather than snps,pbl.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 4, 8, 16, 32]
snps,no-pbl-x8:
$ref: /schemas/types.yaml#/definitions/flag
description:
Don\'t multiply the pbl/txpbl/rxpbl values by 8. For core
rev < 3.50, don\'t multiply the values by 4.
- if:
properties:
compatible:
contains:
enum:
- allwinner,sun7i-a20-gmac
- allwinner,sun8i-a83t-emac
- allwinner,sun8i-h3-emac
- allwinner,sun8i-r40-gmac
- allwinner,sun8i-v3s-emac
- allwinner,sun50i-a64-emac
- loongson,ls2k-dwmac
- loongson,ls7a-dwmac
- ingenic,jz4775-mac
- ingenic,x1000-mac
- ingenic,x1600-mac
- ingenic,x1830-mac
- ingenic,x2000-mac
- qcom,qcs404-ethqos
- qcom,sa8775p-ethqos
- qcom,sc8280xp-ethqos
- qcom,sm8150-ethqos
- snps,dwmac-4.00
- snps,dwmac-4.10a
- snps,dwmac-4.20a
- snps,dwmac-5.10a
- snps,dwmac-5.20
- snps,dwxgmac
- snps,dwxgmac-2.10
- st,spear600-gmac
then:
properties:
snps,tso:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enables the TSO feature otherwise it will be managed by
MAC HW capability register.
additionalProperties: true
examples:
- |
gmac0: ethernet@e0800000 {
compatible = "snps,dwxgmac-2.10", "snps,dwxgmac";
reg = <0xe0800000 0x8000>;
interrupt-parent = <&vic1>;
interrupts = <24 23 22>;
interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
mac-address = [000000000000]; /* Filled in by U-Boot */
max-frame-size = <3800>;
phy-mode = "gmii";
snps,multicast-filter-bins = <256>;
snps,perfect-filter-entries = <128>;
rx-fifo-depth = <16384>;
tx-fifo-depth = <16384>;
clocks = <&clock>;
clock-names = "stmmaceth";
snps,axi-config = <&stmmac_axi_setup>;
snps,mtl-rx-config = <&mtl_rx_setup>;
snps,mtl-tx-config = <&mtl_tx_setup>;
stmmac_axi_setup: stmmac-axi-config {
snps,wr_osr_lmt = <0xf>;
snps,rd_osr_lmt = <0xf>;
snps,blen = <256 128 64 32 0 0 0>;
};
mtl_rx_setup: rx-queues-config {
snps,rx-queues-to-use = <1>;
snps,rx-sched-sp;
queue0 {
snps,dcb-algorithm;
snps,map-to-dma-channel = <0x0>;
snps,priority = <0x0>;
};
};
mtl_tx_setup: tx-queues-config {
snps,tx-queues-to-use = <2>;
snps,tx-sched-wrr;
queue0 {
snps,weight = <0x10>;
snps,dcb-algorithm;
snps,priority = <0x0>;
};
queue1 {
snps,avb-algorithm;
snps,send_slope = <0x1000>;
snps,idle_slope = <0x1000>;
snps,high_credit = <0x3E800>;
snps,low_credit = <0xFFC18000>;
snps,priority = <0x1>;
};
};
mdio0 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,dwmac-mdio";
phy1: ethernet-phy@0 {
reg = <0>;
};
};
};
# FIXME: We should set it, but it would report all the generic
# properties as additional properties.
# additionalProperties: false
...