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182 lines
6.4 KiB
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182 lines
6.4 KiB
Diff
From patchwork Tue Dec 10 08:14:39 2019
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X-Patchwork-Submitter: Landen Chao <landen.chao@mediatek.com>
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From: Landen Chao <landen.chao@mediatek.com>
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To: <andrew@lunn.ch>, <f.fainelli@gmail.com>,
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<vivien.didelot@savoirfairelinux.com>, <matthias.bgg@gmail.com>,
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<robh+dt@kernel.org>, <mark.rutland@arm.com>
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CC: <devicetree@vger.kernel.org>, <netdev@vger.kernel.org>,
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<linux-kernel@vger.kernel.org>,
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<linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
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<sean.wang@mediatek.com>, <opensource@vdorst.com>,
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<frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
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Subject: [PATCH net-next 3/6] dt-bindings: net: dsa: add new MT7531 binding
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to support MT7531
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Date: Tue, 10 Dec 2019 16:14:39 +0800
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Message-ID: <1c382fd916b66bfe3ce8ef18c12f954dbcbddbbc.1575914275.git.landen.chao@mediatek.com>
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In-Reply-To: <cover.1575914275.git.landen.chao@mediatek.com>
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References: <cover.1575914275.git.landen.chao@mediatek.com>
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Sender: netdev-owner@vger.kernel.org
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Precedence: bulk
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List-ID: <netdev.vger.kernel.org>
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X-Mailing-List: netdev@vger.kernel.org
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Add devicetree binding to support the compatible mt7531 switch as used
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in the MediaTek MT7531 switch.
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Signed-off-by: Sean Wang <sean.wang@mediatek.com>
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Signed-off-by: Landen Chao <landen.chao@mediatek.com>
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---
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.../devicetree/bindings/net/dsa/mt7530.txt | 77 ++++++++++++++++++-
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1 file changed, 74 insertions(+), 3 deletions(-)
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diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
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index c5ed5d25f642..dc226a4e402a 100644
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--- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt
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+++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
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@@ -5,6 +5,7 @@ Required properties:
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- compatible: may be compatible = "mediatek,mt7530"
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or compatible = "mediatek,mt7621"
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+ or compatible = "mediatek,mt7531"
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- #address-cells: Must be 1.
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- #size-cells: Must be 0.
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- mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
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@@ -32,10 +33,13 @@ Required properties for the child nodes within ports container:
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- reg: Port address described must be 6 for CPU port and from 0 to 5 for
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user ports.
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-- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled
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- "cpu".
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+- phy-mode: String, the follow value would be acceptable for port labeled "cpu"
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+ If compatible mediatek,mt7530 or mediatek,mt7621 is set,
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+ must be either "trgmii" or "rgmii"
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+ If compatible mediatek,mt7531 is set,
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+ must be either "sgmii", "1000base-x" or "2500base-x"
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-Port 5 of the switch is muxed between:
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+Port 5 of mt7530 and mt7621 switch is muxed between:
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1. GMAC5: GMAC5 can interface with another external MAC or PHY.
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2. PHY of port 0 or port 4: PHY interfaces with an external MAC like 2nd GMAC
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of the SOC. Used in many setups where port 0/4 becomes the WAN port.
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@@ -308,3 +312,70 @@ Example 3: MT7621: Port 5 is connected to external PHY: Port 5 -> external PHY.
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};
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};
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};
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+
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+Example 4:
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+
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+ð {
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+ gmac0: mac@0 {
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+ compatible = "mediatek,eth-mac";
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+ reg = <0>;
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+ phy-mode = "2500base-x";
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+
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+ fixed-link {
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+ speed = <1000>;
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+ full-duplex;
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+ pause;
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+ };
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+ };
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+
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+ &mdio0 {
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+ switch@0 {
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+ compatible = "mediatek,mt7531";
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+ reg = <0>;
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+ reset-gpios = <&pio 54 0>;
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+
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+ ports {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ reg = <0>;
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+
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+ port@0 {
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+ reg = <0>;
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+ label = "lan0";
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+ };
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+
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+ port@1 {
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+ reg = <1>;
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+ label = "lan1";
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+ };
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+
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+ port@2 {
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+ reg = <2>;
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+ label = "lan2";
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+ };
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+
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+ port@3 {
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+ reg = <3>;
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+ label = "lan3";
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+ };
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+
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+ port@4 {
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+ reg = <4>;
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+ label = "wan";
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+ };
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+
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+ port@6 {
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+ reg = <6>;
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+ label = "cpu";
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+ ethernet = <&gmac0>;
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+ phy-mode = "2500base-x";
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+
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+ fixed-link {
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+ speed = <1000>;
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+ full-duplex;
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+ pause;
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+ };
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+ };
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+ };
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+ };
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+ };
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