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linux-loongson/Documentation/devicetree/bindings/net/mediatek,net.yaml
Frank Wunderlich c4582a31ef dt-bindings: net: mediatek,net: add sram property 
Meditak Filogic SoCs (MT798x) have dedicated MMIO-SRAM for dma operations.

MT7981 and MT7986 currently use static offset to ethernet MAC register
which will be changed in separate patch once this way is accepted.

Add "sram" property to map ethernet controller to dedicated mmio-sram node.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250709111147.11843-5-linux@fw-web.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10 15:04:10 -07:00

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/mediatek,net.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Frame Engine Ethernet controller
maintainers:
- Lorenzo Bianconi <lorenzo@kernel.org>
- Felix Fietkau <nbd@nbd.name>
description:
The frame engine ethernet controller can be found on MediaTek SoCs. These SoCs
have dual GMAC ports.
properties:
compatible:
enum:
- mediatek,mt2701-eth
- mediatek,mt7623-eth
- mediatek,mt7621-eth
- mediatek,mt7622-eth
- mediatek,mt7629-eth
- mediatek,mt7981-eth
- mediatek,mt7986-eth
- mediatek,mt7988-eth
- ralink,rt5350-eth
reg:
maxItems: 1
clocks:
minItems: 2
maxItems: 24
clock-names:
minItems: 2
maxItems: 24
interrupts:
minItems: 1
maxItems: 8
interrupt-names:
minItems: 1
items:
- const: fe0
- const: fe1
- const: fe2
- const: fe3
- const: pdma0
- const: pdma1
- const: pdma2
- const: pdma3
power-domains:
maxItems: 1
resets:
maxItems: 3
reset-names:
items:
- const: fe
- const: gmac
- const: ppe
sram:
$ref: /schemas/types.yaml#/definitions/phandle
description: phandle to mmio SRAM
mediatek,ethsys:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the syscon node that handles the port setup.
cci-control-port: true
mediatek,hifsys:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the mediatek hifsys controller used to provide various clocks
and reset to the system.
mediatek,infracfg:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the syscon node that handles the path from GMAC to
PHY variants.
mediatek,pcie-mirror:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the mediatek pcie-mirror controller.
mediatek,pctl:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the syscon node that handles the ports slew rate and
driver current.
mediatek,sgmiisys:
$ref: /schemas/types.yaml#/definitions/phandle-array
minItems: 1
maxItems: 2
items:
maxItems: 1
description:
A list of phandle to the syscon node that handles the SGMII setup which is required for
those SoCs equipped with SGMII.
mediatek,wed:
$ref: /schemas/types.yaml#/definitions/phandle-array
minItems: 2
maxItems: 2
items:
maxItems: 1
description:
List of phandles to wireless ethernet dispatch nodes.
mediatek,wed-pcie:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the mediatek wed-pcie controller.
dma-coherent: true
mdio-bus:
$ref: mdio.yaml#
unevaluatedProperties: false
"#address-cells":
const: 1
"#size-cells":
const: 0
allOf:
- $ref: ethernet-controller.yaml#
- if:
properties:
compatible:
contains:
enum:
- mediatek,mt2701-eth
- mediatek,mt7623-eth
then:
properties:
interrupts:
minItems: 3
maxItems: 3
interrupt-names:
minItems: 3
maxItems: 3
clocks:
minItems: 4
maxItems: 4
clock-names:
items:
- const: ethif
- const: esw
- const: gp1
- const: gp2
sram: false
mediatek,infracfg: false
mediatek,wed: false
mediatek,wed-pcie: false
else:
properties:
mediatek,pctl: false
- if:
properties:
compatible:
contains:
enum:
- mediatek,mt7621-eth
then:
properties:
interrupts:
maxItems: 1
interrupt-names:
maxItems: 1
clocks:
minItems: 2
maxItems: 2
clock-names:
items:
- const: ethif
- const: fe
sram: false
mediatek,infracfg: false
mediatek,wed: false
mediatek,wed-pcie: false
- if:
properties:
compatible:
contains:
const: mediatek,mt7622-eth
then:
properties:
interrupts:
minItems: 3
maxItems: 3
interrupt-names:
minItems: 3
maxItems: 3
clocks:
minItems: 11
maxItems: 11
clock-names:
items:
- const: ethif
- const: esw
- const: gp0
- const: gp1
- const: gp2
- const: sgmii_tx250m
- const: sgmii_rx250m
- const: sgmii_cdr_ref
- const: sgmii_cdr_fb
- const: sgmii_ck
- const: eth2pll
sram: false
mediatek,infracfg: false
mediatek,sgmiisys:
minItems: 1
maxItems: 1
mediatek,wed-pcie: false
else:
properties:
mediatek,pcie-mirror: false
- if:
properties:
compatible:
contains:
const: mediatek,mt7629-eth
then:
properties:
interrupts:
minItems: 3
maxItems: 3
interrupt-names:
minItems: 3
maxItems: 3
clocks:
minItems: 17
maxItems: 17
clock-names:
items:
- const: ethif
- const: sgmiitop
- const: esw
- const: gp0
- const: gp1
- const: gp2
- const: fe
- const: sgmii_tx250m
- const: sgmii_rx250m
- const: sgmii_cdr_ref
- const: sgmii_cdr_fb
- const: sgmii2_tx250m
- const: sgmii2_rx250m
- const: sgmii2_cdr_ref
- const: sgmii2_cdr_fb
- const: sgmii_ck
- const: eth2pll
sram: false
mediatek,sgmiisys:
minItems: 2
maxItems: 2
mediatek,wed: false
mediatek,wed-pcie: false
- if:
properties:
compatible:
contains:
const: mediatek,mt7981-eth
then:
properties:
interrupts:
minItems: 8
interrupt-names:
minItems: 8
clocks:
minItems: 15
maxItems: 15
clock-names:
items:
- const: fe
- const: gp2
- const: gp1
- const: wocpu0
- const: sgmii_ck
- const: sgmii_tx250m
- const: sgmii_rx250m
- const: sgmii_cdr_ref
- const: sgmii_cdr_fb
- const: sgmii2_tx250m
- const: sgmii2_rx250m
- const: sgmii2_cdr_ref
- const: sgmii2_cdr_fb
- const: netsys0
- const: netsys1
mediatek,infracfg: false
mediatek,sgmiisys:
minItems: 2
maxItems: 2
- if:
properties:
compatible:
contains:
const: mediatek,mt7986-eth
then:
properties:
interrupts:
minItems: 8
interrupt-names:
minItems: 8
clocks:
minItems: 15
maxItems: 15
clock-names:
items:
- const: fe
- const: gp2
- const: gp1
- const: wocpu1
- const: wocpu0
- const: sgmii_tx250m
- const: sgmii_rx250m
- const: sgmii_cdr_ref
- const: sgmii_cdr_fb
- const: sgmii2_tx250m
- const: sgmii2_rx250m
- const: sgmii2_cdr_ref
- const: sgmii2_cdr_fb
- const: netsys0
- const: netsys1
mediatek,infracfg: false
mediatek,sgmiisys:
minItems: 2
maxItems: 2
- if:
properties:
compatible:
contains:
const: mediatek,mt7988-eth
then:
properties:
interrupts:
minItems: 8
interrupt-names:
minItems: 8
clocks:
minItems: 24
maxItems: 24
clock-names:
items:
- const: crypto
- const: fe
- const: gp2
- const: gp1
- const: gp3
- const: ethwarp_wocpu2
- const: ethwarp_wocpu1
- const: ethwarp_wocpu0
- const: esw
- const: top_eth_gmii_sel
- const: top_eth_refck_50m_sel
- const: top_eth_sys_200m_sel
- const: top_eth_sys_sel
- const: top_eth_xgmii_sel
- const: top_eth_mii_sel
- const: top_netsys_sel
- const: top_netsys_500m_sel
- const: top_netsys_pao_2x_sel
- const: top_netsys_sync_250m_sel
- const: top_netsys_ppefb_250m_sel
- const: top_netsys_warp_sel
- const: xgp1
- const: xgp2
- const: xgp3
patternProperties:
"^mac@[0-2]$":
type: object
unevaluatedProperties: false
allOf:
- $ref: ethernet-controller.yaml#
description:
Ethernet MAC node
properties:
compatible:
const: mediatek,eth-mac
reg:
maxItems: 1
required:
- reg
- compatible
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- mediatek,ethsys
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/mt7622-clk.h>
#include <dt-bindings/power/mt7622-power.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
ethernet: ethernet@1b100000 {
compatible = "mediatek,mt7622-eth";
reg = <0 0x1b100000 0 0x20000>;
interrupts = <GIC_SPI 223 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 224 IRQ_TYPE_LEVEL_LOW>,
<GIC_SPI 225 IRQ_TYPE_LEVEL_LOW>;
clocks = <&topckgen CLK_TOP_ETH_SEL>,
<&ethsys CLK_ETH_ESW_EN>,
<&ethsys CLK_ETH_GP0_EN>,
<&ethsys CLK_ETH_GP1_EN>,
<&ethsys CLK_ETH_GP2_EN>,
<&sgmiisys CLK_SGMII_TX250M_EN>,
<&sgmiisys CLK_SGMII_RX250M_EN>,
<&sgmiisys CLK_SGMII_CDR_REF>,
<&sgmiisys CLK_SGMII_CDR_FB>,
<&topckgen CLK_TOP_SGMIIPLL>,
<&apmixedsys CLK_APMIXED_ETH2PLL>;
clock-names = "ethif", "esw", "gp0", "gp1", "gp2",
"sgmii_tx250m", "sgmii_rx250m",
"sgmii_cdr_ref", "sgmii_cdr_fb", "sgmii_ck",
"eth2pll";
power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
mediatek,ethsys = <&ethsys>;
mediatek,sgmiisys = <&sgmiisys>;
cci-control-port = <&cci_control2>;
mediatek,pcie-mirror = <&pcie_mirror>;
mediatek,hifsys = <&hifsys>;
dma-coherent;
#address-cells = <1>;
#size-cells = <0>;
mdio0: mdio-bus {
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@0 {
reg = <0>;
};
phy1: ethernet-phy@1 {
reg = <1>;
};
};
gmac0: mac@0 {
compatible = "mediatek,eth-mac";
phy-mode = "rgmii";
phy-handle = <&phy0>;
reg = <0>;
};
gmac1: mac@1 {
compatible = "mediatek,eth-mac";
phy-mode = "rgmii";
phy-handle = <&phy1>;
reg = <1>;
};
};
};
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/mt7622-clk.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
eth: ethernet@15100000 {
#define CLK_ETH_FE_EN 0
#define CLK_ETH_WOCPU1_EN 3
#define CLK_ETH_WOCPU0_EN 4
#define CLK_TOP_NETSYS_SEL 43
#define CLK_TOP_NETSYS_500M_SEL 44
#define CLK_TOP_NETSYS_2X_SEL 46
#define CLK_TOP_SGM_325M_SEL 47
#define CLK_APMIXED_NET2PLL 1
#define CLK_APMIXED_SGMPLL 3
compatible = "mediatek,mt7986-eth";
reg = <0 0x15100000 0 0x80000>;
interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 197 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 198 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 199 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ethsys CLK_ETH_FE_EN>,
<&ethsys CLK_ETH_GP2_EN>,
<&ethsys CLK_ETH_GP1_EN>,
<&ethsys CLK_ETH_WOCPU1_EN>,
<&ethsys CLK_ETH_WOCPU0_EN>,
<&sgmiisys0 CLK_SGMII_TX250M_EN>,
<&sgmiisys0 CLK_SGMII_RX250M_EN>,
<&sgmiisys0 CLK_SGMII_CDR_REF>,
<&sgmiisys0 CLK_SGMII_CDR_FB>,
<&sgmiisys1 CLK_SGMII_TX250M_EN>,
<&sgmiisys1 CLK_SGMII_RX250M_EN>,
<&sgmiisys1 CLK_SGMII_CDR_REF>,
<&sgmiisys1 CLK_SGMII_CDR_FB>,
<&topckgen CLK_TOP_NETSYS_SEL>,
<&topckgen CLK_TOP_NETSYS_SEL>;
clock-names = "fe", "gp2", "gp1", "wocpu1", "wocpu0",
"sgmii_tx250m", "sgmii_rx250m",
"sgmii_cdr_ref", "sgmii_cdr_fb",
"sgmii2_tx250m", "sgmii2_rx250m",
"sgmii2_cdr_ref", "sgmii2_cdr_fb",
"netsys0", "netsys1";
mediatek,ethsys = <&ethsys>;
mediatek,sgmiisys = <&sgmiisys0>, <&sgmiisys1>;
assigned-clocks = <&topckgen CLK_TOP_NETSYS_2X_SEL>,
<&topckgen CLK_TOP_SGM_325M_SEL>;
assigned-clock-parents = <&apmixedsys CLK_APMIXED_NET2PLL>,
<&apmixedsys CLK_APMIXED_SGMPLL>;
#address-cells = <1>;
#size-cells = <0>;
mdio: mdio-bus {
#address-cells = <1>;
#size-cells = <0>;
phy5: ethernet-phy@0 {
compatible = "ethernet-phy-id67c9.de0a";
phy-mode = "2500base-x";
reset-gpios = <&pio 6 1>;
reset-deassert-us = <20000>;
reg = <5>;
};
phy6: ethernet-phy@1 {
compatible = "ethernet-phy-id67c9.de0a";
phy-mode = "2500base-x";
reg = <6>;
};
};
mac0: mac@0 {
compatible = "mediatek,eth-mac";
phy-mode = "2500base-x";
phy-handle = <&phy5>;
reg = <0>;
};
mac1: mac@1 {
compatible = "mediatek,eth-mac";
phy-mode = "2500base-x";
phy-handle = <&phy6>;
reg = <1>;
};
};
};
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