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MediaTek Frame Engine Ethernet controller
=========================================
The frame engine ethernet controller can be found on MediaTek SoCs. These SoCs
have dual GMAC each represented by a child node..
* Ethernet controller node
Required properties:
- compatible: Should be
"mediatek,mt2701-eth": for MT2701 SoC
"mediatek,mt7623-eth", "mediatek,mt2701-eth": for MT7623 SoC
"mediatek,mt7622-eth": for MT7622 SoC
- reg: Address and length of the register set for the device
- interrupts: Should contain the three frame engines interrupts in numeric
order. These are fe_int0, fe_int1 and fe_int2.
- clocks: the clock used by the core
- clock-names: the names of the clock listed in the clocks property. These are
"ethif", "esw", "gp2", "gp1" : For MT2701 and MT7623 SoC
"ethif", "esw", "gp0", "gp1", "gp2", "sgmii_tx250m", "sgmii_rx250m",
"sgmii_cdr_ref", "sgmii_cdr_fb", "sgmii_ck", "eth2pll" : For MT7622 SoC
- power-domains: phandle to the power domain that the ethernet is part of
- resets: Should contain phandles to the ethsys reset signals
- reset-names: Should contain the names of reset signal listed in the resets
property
These are "fe", "gmac" and "ppe"
- mediatek,ethsys: phandle to the syscon node that handles the port setup
- mediatek,sgmiisys: phandle to the syscon node that handles the SGMII setup
which is required for those SoCs equipped with SGMII such as MT7622 SoC.
- mediatek,pctl: phandle to the syscon node that handles the ports slew rate
and driver current: only for MT2701 and MT7623 SoC
* Ethernet MAC node
Required properties:
- compatible: Should be "mediatek,eth-mac"
- reg: The number of the MAC
- phy-handle: see ethernet.txt file in the same directory and
the phy-mode "trgmii" required being provided when reg
is equal to 0 and the MAC uses fixed-link to connect
with internal switch such as MT7530.
Example:
eth: ethernet@1b100000 {
compatible = "mediatek,mt7623-eth";
reg = <0 0x1b100000 0 0x20000>;
clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
<ðsys CLK_ETHSYS_ESW>,
<ðsys CLK_ETHSYS_GP2>,
<ðsys CLK_ETHSYS_GP1>;
clock-names = "ethif", "esw", "gp2", "gp1";
interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW
GIC_SPI 199 IRQ_TYPE_LEVEL_LOW
GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
resets = <ðsys MT2701_ETHSYS_ETH_RST>;
reset-names = "eth";
mediatek,ethsys = <ðsys>;
mediatek,pctl = <&syscfg_pctl_a>;
#address-cells = <1>;
#size-cells = <0>;
gmac1: mac@0 {
compatible = "mediatek,eth-mac";
reg = <0>;
phy-handle = <&phy0>;
};
gmac2: mac@1 {
compatible = "mediatek,eth-mac";
reg = <1>;
phy-handle = <&phy1>;
};
mdio-bus {
phy0: ethernet-phy@0 {
reg = <0>;
phy-mode = "rgmii";
};
phy1: ethernet-phy@1 {
reg = <1>;
phy-mode = "rgmii";
};
};
};
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