linux-kernel - [PATCH V4 1/4] net-next: mediatek: document MediaTek SoC ethernet binding

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1457340997-23116-2-git-send-email-blogic@openwrt.org>
Date:	Mon,  7 Mar 2016 09:56:34 +0100
From:	John Crispin <blogic@...nwrt.org>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Steven Liu (劉人豪) 
	<steven.liu@...iatek.com>,
	Carlos Huang (黃士彰) 
	<Carlos.Huang@...iatek.com>, Felix Fietkau <nbd@...nwrt.org>,
	Michael Lee <igvtee@...il.com>,
	John Crispin <blogic@...nwrt.org>, devicetree@...r.kernel.org
Subject: [PATCH V4 1/4] net-next: mediatek: document MediaTek SoC ethernet binding

This adds the binding documentation for the MediaTek Ethernet
controller.

Signed-off-by: John Crispin <blogic@...nwrt.org>
Acked-by: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.kernel.org
---
 .../devicetree/bindings/net/mediatek-net.txt       |   77 ++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/mediatek-net.txt

diff --git a/Documentation/devicetree/bindings/net/mediatek-net.txt b/Documentation/devicetree/bindings/net/mediatek-net.txt
new file mode 100644
index 0000000..5ca7929
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/mediatek-net.txt
@@ -0,0 +1,77 @@
+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,mt7623-eth"
+- reg: Address and length of the register set for the device
+- interrupts: Should contain the frame engines interrupt
+- 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"
+- power-domains: phandle to the power domain that the ethernet is part of
+- resets: Should contain a phandle to the ethsys reset signal
+- reset-names: Should contain the reset signal name "eth"
+- mediatek,ethsys: phandle to the syscon node that handles the port setup
+- mediatek,pctl: phandle to the syscon node that handles the ports slew rate
+	and driver current
+
+Optional properties:
+- interrupt-parent: Should be the phandle for the interrupt controller
+  that services interrupts for this device
+
+
+* 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.
+
+Example:
+
+eth: ethernet@...00000 {
+	compatible = "mediatek,mt7623-eth";
+	reg = <0 0x1b100000 0 0x20000>;
+	clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+		 <&ethsys CLK_ETHSYS_ESW>,
+		 <&ethsys CLK_ETHSYS_GP2>,
+		 <&ethsys CLK_ETHSYS_GP1>;
+	clock-names = "ethif", "esw", "gp2", "gp1";
+	interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW>;
+	power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
+	resets = <&ethsys MT2701_ETHSYS_ETH_RST>;
+	reset-names = "eth";
+	mediatek,ethsys = <&ethsys>;
+	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";
+		};
+	};
+};
-- 
1.7.10.4