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From patchwork Tue Dec 10 08:14:39 2019
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X-Patchwork-Submitter: Landen Chao <landen.chao@mediatek.com>
X-Patchwork-Id: 1206955
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From: Landen Chao <landen.chao@mediatek.com>
To: <andrew@lunn.ch>, <f.fainelli@gmail.com>,
<vivien.didelot@savoirfairelinux.com>, <matthias.bgg@gmail.com>,
<robh+dt@kernel.org>, <mark.rutland@arm.com>
CC: <devicetree@vger.kernel.org>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
<sean.wang@mediatek.com>, <opensource@vdorst.com>,
<frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
Subject: [PATCH net-next 3/6] dt-bindings: net: dsa: add new MT7531 binding
to support MT7531
Date: Tue, 10 Dec 2019 16:14:39 +0800
Message-ID: <1c382fd916b66bfe3ce8ef18c12f954dbcbddbbc.1575914275.git.landen.chao@mediatek.com>
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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 | 77 ++++++++++++++++++-
1 file changed, 74 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
index c5ed5d25f642..dc226a4e402a 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 +312,70 @@ Example 3: MT7621: Port 5 is connected to external PHY: Port 5 -> external PHY.
};
};
};
+
+Example 4:
+
+ð {
+ gmac0: mac@0 {
+ compatible = "mediatek,eth-mac";
+ reg = <0>;
+ phy-mode = "2500base-x";
+
+ fixed-link {
+ speed = <1000>;
+ 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";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
|
