target/linux/mediatek/patches-4.9/0025-dt-bindings-net-dsa-add-Mediatek-MT7530-binding.patch

   1 From 3b9b46b5705214b16c5356284ad68be32ae56a26 Mon Sep 17 00:00:00 2001
   2 From: Sean Wang <sean.wang@mediatek.com>
   3 Date: Wed, 29 Mar 2017 17:38:19 +0800
   4 Subject: [PATCH 25/57] dt-bindings: net: dsa: add Mediatek MT7530 binding
   5
   6 Add device-tree binding for Mediatek MT7530 switch.
   7
   8 Cc: devicetree@vger.kernel.org
   9 Signed-off-by: Sean Wang <sean.wang@mediatek.com>
  10 Acked-by: Rob Herring <robh@kernel.org>
  11 ---
  12  .../devicetree/bindings/net/dsa/mt7530.txt         | 92 ++++++++++++++++++++++
  13  1 file changed, 92 insertions(+)
  14  create mode 100644 Documentation/devicetree/bindings/net/dsa/mt7530.txt
  15
  16 --- /dev/null
  17 +++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
  18 @@ -0,0 +1,92 @@
  19 +Mediatek MT7530 Ethernet switch
  20 +================================
  21 +
  22 +Required properties:
  23 +
  24 +- compatible: Must be compatible = "mediatek,mt7530";
  25 +- #address-cells: Must be 1.
  26 +- #size-cells: Must be 0.
  27 +- mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
  28 +       on multi-chip module belong to MT7623A has or the remotely standalone
  29 +       chip as the function MT7623N reference board provided for.
  30 +- core-supply: Phandle to the regulator node necessary for the core power.
  31 +- io-supply: Phandle to the regulator node necessary for the I/O power.
  32 +       See Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
  33 +       for details for the regulator setup on these boards.
  34 +
  35 +If the property mediatek,mcm isn't defined, following property is required
  36 +
  37 +- reset-gpios: Should be a gpio specifier for a reset line.
  38 +
  39 +Else, following properties are required
  40 +
  41 +- resets : Phandle pointing to the system reset controller with
  42 +       line index for the ethsys.
  43 +- reset-names : Should be set to "mcm".
  44 +
  45 +Required properties for the child nodes within ports container:
  46 +
  47 +- reg: Port address described must be 6 for CPU port and from 0 to 5 for
  48 +       user ports.
  49 +- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled
  50 +        "cpu".
  51 +
  52 +See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional
  53 +required, optional properties and how the integrated switch subnodes must
  54 +be specified.
  55 +
  56 +Example:
  57 +
  58 +       &mdio0 {
  59 +               switch@0 {
  60 +                       compatible = "mediatek,mt7530";
  61 +                       #address-cells = <1>;
  62 +                       #size-cells = <0>;
  63 +                       reg = <0>;
  64 +
  65 +                       core-supply = <&mt6323_vpa_reg>;
  66 +                       io-supply = <&mt6323_vemc3v3_reg>;
  67 +                       reset-gpios = <&pio 33 0>;
  68 +
  69 +                       ports {
  70 +                               #address-cells = <1>;
  71 +                               #size-cells = <0>;
  72 +                               reg = <0>;
  73 +                               port@0 {
  74 +                                       reg = <0>;
  75 +                                       label = "lan0";
  76 +                               };
  77 +
  78 +                               port@1 {
  79 +                                       reg = <1>;
  80 +                                       label = "lan1";
  81 +                               };
  82 +
  83 +                               port@2 {
  84 +                                       reg = <2>;
  85 +                                       label = "lan2";
  86 +                               };
  87 +
  88 +                               port@3 {
  89 +                                       reg = <3>;
  90 +                                       label = "lan3";
  91 +                               };
  92 +
  93 +                               port@4 {
  94 +                                       reg = <4>;
  95 +                                       label = "wan";
  96 +                               };
  97 +
  98 +                               port@6 {
  99 +                                       reg = <6>;
 100 +                                       label = "cpu";
 101 +                                       ethernet = <&gmac0>;
 102 +                                       phy-mode = "trgmii";
 103 +                                       fixed-link {
 104 +                                               speed = <1000>;
 105 +                                               full-duplex;
 106 +                                       };
 107 +                               };
 108 +                       };
 109 +               };
 110 +       };