forked from Minki/linux
61976fff20
When the binding was defined, I was not aware that mt2701 was an earlier version of the SoC. For sake of consistency, the ethernet driver should use mt2701 inside the compat string as this is the earliest SoC with the ethernet core. The ethernet driver is currently of no real use until we finish and upstream the DSA driver. There are no users of this binding yet. It should be safe to fix this now before it is too late and we need to provide backward compatibility for the mt7623-eth compat string. Reported-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: John Crispin <john@phrozen.org> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
83 lines
2.4 KiB
Plaintext
83 lines
2.4 KiB
Plaintext
MediaTek Frame Engine Ethernet controller
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=========================================
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The frame engine ethernet controller can be found on MediaTek SoCs. These SoCs
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have dual GMAC each represented by a child node..
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* Ethernet controller node
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Required properties:
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- compatible: Should be "mediatek,mt2701-eth"
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- reg: Address and length of the register set for the device
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- interrupts: Should contain the three frame engines interrupts in numeric
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order. These are fe_int0, fe_int1 and fe_int2.
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- clocks: the clock used by the core
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- clock-names: the names of the clock listed in the clocks property. These are
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"ethif", "esw", "gp2", "gp1"
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- power-domains: phandle to the power domain that the ethernet is part of
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- resets: Should contain a phandle to the ethsys reset signal
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- reset-names: Should contain the reset signal name "eth"
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- mediatek,ethsys: phandle to the syscon node that handles the port setup
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- mediatek,pctl: phandle to the syscon node that handles the ports slew rate
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and driver current
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Optional properties:
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- interrupt-parent: Should be the phandle for the interrupt controller
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that services interrupts for this device
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* Ethernet MAC node
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Required properties:
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- compatible: Should be "mediatek,eth-mac"
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- reg: The number of the MAC
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- phy-handle: see ethernet.txt file in the same directory and
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the phy-mode "trgmii" required being provided when reg
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is equal to 0 and the MAC uses fixed-link to connect
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with internal switch such as MT7530.
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Example:
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eth: ethernet@1b100000 {
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compatible = "mediatek,mt7623-eth";
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reg = <0 0x1b100000 0 0x20000>;
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clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
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<ðsys CLK_ETHSYS_ESW>,
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<ðsys CLK_ETHSYS_GP2>,
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<ðsys CLK_ETHSYS_GP1>;
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clock-names = "ethif", "esw", "gp2", "gp1";
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interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW
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GIC_SPI 199 IRQ_TYPE_LEVEL_LOW
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GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
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power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
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resets = <ðsys MT2701_ETHSYS_ETH_RST>;
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reset-names = "eth";
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mediatek,ethsys = <ðsys>;
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mediatek,pctl = <&syscfg_pctl_a>;
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#address-cells = <1>;
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#size-cells = <0>;
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gmac1: mac@0 {
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compatible = "mediatek,eth-mac";
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reg = <0>;
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phy-handle = <&phy0>;
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};
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gmac2: mac@1 {
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compatible = "mediatek,eth-mac";
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reg = <1>;
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phy-handle = <&phy1>;
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};
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mdio-bus {
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phy0: ethernet-phy@0 {
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reg = <0>;
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phy-mode = "rgmii";
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};
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phy1: ethernet-phy@1 {
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reg = <1>;
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phy-mode = "rgmii";
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};
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};
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};
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