| Message ID | 1ec38b68deec6f1c23e1236d38035b1823ea2ebf.1597729692.git.landen.chao@mediatek.com |
|---|---|
| State | Changes Requested |
| Delegated to: | David Miller |
| Headers | show |
| Series | net-next: dsa: mt7530: add support for MT7531 | expand |
On Tue, Aug 18, 2020 at 03:14:09PM +0800, Landen Chao wrote: > Add devicetree binding to support the compatible mt7531 switch as used > in the MediaTek MT7531 switch. > > Signed-off-by: Sean Wang <sean.wang@mediatek.com> > Signed-off-by: Landen Chao <landen.chao@mediatek.com> > --- > .../devicetree/bindings/net/dsa/mt7530.txt | 71 ++++++++++++++++++- > 1 file changed, 68 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt > index c5ed5d25f642..50eaf40fb612 100644 > --- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt > +++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt > @@ -5,6 +5,7 @@ Required properties: > > - compatible: may be compatible = "mediatek,mt7530" > or compatible = "mediatek,mt7621" > + or compatible = "mediatek,mt7531" > - #address-cells: Must be 1. > - #size-cells: Must be 0. > - mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part > @@ -32,10 +33,13 @@ Required properties for the child nodes within ports container: > > - reg: Port address described must be 6 for CPU port and from 0 to 5 for > user ports. > -- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled > - "cpu". > +- phy-mode: String, the follow value would be acceptable for port labeled "cpu" > + If compatible mediatek,mt7530 or mediatek,mt7621 is set, > + must be either "trgmii" or "rgmii" > + If compatible mediatek,mt7531 is set, > + must be either "sgmii", "1000base-x" or "2500base-x" > > -Port 5 of the switch is muxed between: > +Port 5 of mt7530 and mt7621 switch is muxed between: > 1. GMAC5: GMAC5 can interface with another external MAC or PHY. > 2. PHY of port 0 or port 4: PHY interfaces with an external MAC like 2nd GMAC > of the SOC. Used in many setups where port 0/4 becomes the WAN port. > @@ -308,3 +312,64 @@ Example 3: MT7621: Port 5 is connected to external PHY: Port 5 -> external PHY. > }; > }; > }; > + > +Example 4: MT7531BE port6 -- up-clocked 2.5Gbps SGMII -- MT7622 CPU 1st GMAC Does this really need another example? > + > +ð { > + gmac0: mac@0 { > + compatible = "mediatek,eth-mac"; > + reg = <0>; > + phy-mode = "2500base-x"; > + > + fixed-link { > + speed = <2500>; > + full-duplex; > + pause; > + }; > + }; > + > + &mdio0 { > + switch@0 { > + compatible = "mediatek,mt7531"; > + reg = <0>; > + reset-gpios = <&pio 54 0>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + reg = <0>; > + > + port@0 { > + reg = <0>; > + label = "lan0"; > + }; > + > + port@1 { > + reg = <1>; > + label = "lan1"; > + }; > + > + port@2 { > + reg = <2>; > + label = "lan2"; > + }; > + > + port@3 { > + reg = <3>; > + label = "lan3"; > + }; > + > + port@4 { > + reg = <4>; > + label = "wan"; > + }; > + > + port@6 { > + reg = <6>; > + label = "cpu"; > + ethernet = <&gmac0>; > + phy-mode = "2500base-x"; > + }; > + }; > + }; > + }; > -- > 2.17.1
diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt index c5ed5d25f642..50eaf40fb612 100644 --- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt +++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt @@ -5,6 +5,7 @@ Required properties: - compatible: may be compatible = "mediatek,mt7530" or compatible = "mediatek,mt7621" + or compatible = "mediatek,mt7531" - #address-cells: Must be 1. - #size-cells: Must be 0. - mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part @@ -32,10 +33,13 @@ Required properties for the child nodes within ports container: - reg: Port address described must be 6 for CPU port and from 0 to 5 for user ports. -- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled - "cpu". +- phy-mode: String, the follow value would be acceptable for port labeled "cpu" + If compatible mediatek,mt7530 or mediatek,mt7621 is set, + must be either "trgmii" or "rgmii" + If compatible mediatek,mt7531 is set, + must be either "sgmii", "1000base-x" or "2500base-x" -Port 5 of the switch is muxed between: +Port 5 of mt7530 and mt7621 switch is muxed between: 1. GMAC5: GMAC5 can interface with another external MAC or PHY. 2. PHY of port 0 or port 4: PHY interfaces with an external MAC like 2nd GMAC of the SOC. Used in many setups where port 0/4 becomes the WAN port. @@ -308,3 +312,64 @@ Example 3: MT7621: Port 5 is connected to external PHY: Port 5 -> external PHY. }; }; }; + +Example 4: MT7531BE port6 -- up-clocked 2.5Gbps SGMII -- MT7622 CPU 1st GMAC + +ð { + gmac0: mac@0 { + compatible = "mediatek,eth-mac"; + reg = <0>; + phy-mode = "2500base-x"; + + fixed-link { + speed = <2500>; + full-duplex; + pause; + }; + }; + + &mdio0 { + switch@0 { + compatible = "mediatek,mt7531"; + reg = <0>; + reset-gpios = <&pio 54 0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + port@0 { + reg = <0>; + label = "lan0"; + }; + + port@1 { + reg = <1>; + label = "lan1"; + }; + + port@2 { + reg = <2>; + label = "lan2"; + }; + + port@3 { + reg = <3>; + label = "lan3"; + }; + + port@4 { + reg = <4>; + label = "wan"; + }; + + port@6 { + reg = <6>; + label = "cpu"; + ethernet = <&gmac0>; + phy-mode = "2500base-x"; + }; + }; + }; + };