hc
2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6
kernel/Documentation/devicetree/bindings/phy/phy-mvebu-comphy.txt
....@@ -1,33 +1,54 @@
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-mvebu comphy driver
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--------------------
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+MVEBU comphy drivers
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+--------------------
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-A comphy controller can be found on Marvell Armada 7k/8k on the CP110. It
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-provides a number of shared PHYs used by various interfaces (network, sata,
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-usb, PCIe...).
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+COMPHY controllers can be found on the following Marvell MVEBU SoCs:
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+* Armada 7k/8k (on the CP110)
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+* Armada 3700
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+It provides a number of shared PHYs used by various interfaces (network, SATA,
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+USB, PCIe...).
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810 Required properties:
911
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-- compatible: should be "marvell,comphy-cp110"
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-- reg: should contain the comphy register location and length.
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-- marvell,system-controller: should contain a phandle to the
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- system controller node.
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+- compatible: should be one of:
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+ * "marvell,comphy-cp110" for Armada 7k/8k
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+ * "marvell,comphy-a3700" for Armada 3700
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+- reg: should contain the COMPHY register(s) location(s) and length(s).
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+ * 1 entry for Armada 7k/8k
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+ * 4 entries for Armada 3700 along with the corresponding reg-names
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+ properties, memory areas are:
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+ * Generic COMPHY registers
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+ * Lane 1 (PCIe/GbE)
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+ * Lane 0 (USB3/GbE)
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+ * Lane 2 (SATA/USB3)
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+- marvell,system-controller: should contain a phandle to the system
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+ controller node (only for Armada 7k/8k)
1425 - #address-cells: should be 1.
1526 - #size-cells: should be 0.
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+
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+Optional properlties:
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+
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+- clocks: pointers to the reference clocks for this device (CP110 only),
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+ consequently: MG clock, MG Core clock, AXI clock.
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+- clock-names: names of used clocks for CP110 only, must be :
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+ "mg_clk", "mg_core_clk" and "axi_clk".
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1735 A sub-node is required for each comphy lane provided by the comphy.
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1937 Required properties (child nodes):
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-- reg: comphy lane number.
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-- #phy-cells : from the generic phy bindings, must be 1. Defines the
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+- reg: COMPHY lane number.
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+- #phy-cells : from the generic PHY bindings, must be 1. Defines the
2341 input port to use for a given comphy lane.
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-Example:
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+Examples:
2644
2745 cpm_comphy: phy@120000 {
2846 compatible = "marvell,comphy-cp110";
2947 reg = <0x120000 0x6000>;
3048 marvell,system-controller = <&cpm_syscon0>;
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+ clocks = <&CP110_LABEL(clk) 1 5>, <&CP110_LABEL(clk) 1 6>,
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+ <&CP110_LABEL(clk) 1 18>;
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+ clock-names = "mg_clk", "mg_core_clk", "axi_clk";
3152 #address-cells = <1>;
3253 #size-cells = <0>;
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....@@ -41,3 +62,33 @@
4162 #phy-cells = <1>;
4263 };
4364 };
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+
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+ comphy: phy@18300 {
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+ compatible = "marvell,comphy-a3700";
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+ reg = <0x18300 0x300>,
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+ <0x1F000 0x400>,
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+ <0x5C000 0x400>,
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+ <0xe0178 0x8>;
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+ reg-names = "comphy",
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+ "lane1_pcie_gbe",
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+ "lane0_usb3_gbe",
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+ "lane2_sata_usb3";
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+
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+ comphy0: phy@0 {
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+ reg = <0>;
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+ #phy-cells = <1>;
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+ };
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+
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+ comphy1: phy@1 {
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+ reg = <1>;
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+ #phy-cells = <1>;
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+ };
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+
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+ comphy2: phy@2 {
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+ reg = <2>;
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+ #phy-cells = <1>;
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+ };
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+ };