Documentation/devicetree/bindings/net/can/xilinx_can.txt

   1 Xilinx Axi CAN/Zynq CANPS controller Device Tree Bindings
   2 ---------------------------------------------------------
   3
   4 Required properties:
   5 - compatible            : Should be:
   6                           - "xlnx,zynq-can-1.0" for Zynq CAN controllers
   7                           - "xlnx,axi-can-1.00.a" for Axi CAN controllers
   8                           - "xlnx,canfd-1.0" for CAN FD controllers
   9 - reg                   : Physical base address and size of the controller
  10                           registers map.
  11 - interrupts            : Property with a value describing the interrupt
  12                           number.
  13 - clock-names           : List of input clock names
  14                           - "can_clk", "pclk" (For CANPS),
  15                           - "can_clk", "s_axi_aclk" (For AXI CAN and CAN FD).
  16                           (See clock bindings for details).
  17 - clocks                : Clock phandles (see clock bindings for details).
  18 - tx-fifo-depth         : Can Tx fifo depth (Zynq, Axi CAN).
  19 - rx-fifo-depth         : Can Rx fifo depth (Zynq, Axi CAN, CAN FD in
  20                           sequential Rx mode).
  21 - tx-mailbox-count      : Can Tx mailbox buffer count (CAN FD).
  22 - rx-mailbox-count      : Can Rx mailbox buffer count (CAN FD in mailbox Rx
  23                           mode).
  24
  25
  26 Example:
  27
  28 For Zynq CANPS Dts file:
  29         zynq_can_0: can@e0008000 {
  30                         compatible = "xlnx,zynq-can-1.0";
  31                         clocks = <&clkc 19>, <&clkc 36>;
  32                         clock-names = "can_clk", "pclk";
  33                         reg = <0xe0008000 0x1000>;
  34                         interrupts = <0 28 4>;
  35                         interrupt-parent = <&intc>;
  36                         tx-fifo-depth = <0x40>;
  37                         rx-fifo-depth = <0x40>;
  38                 };
  39 For Axi CAN Dts file:
  40         axi_can_0: axi-can@40000000 {
  41                         compatible = "xlnx,axi-can-1.00.a";
  42                         clocks = <&clkc 0>, <&clkc 1>;
  43                         clock-names = "can_clk","s_axi_aclk" ;
  44                         reg = <0x40000000 0x10000>;
  45                         interrupt-parent = <&intc>;
  46                         interrupts = <0 59 1>;
  47                         tx-fifo-depth = <0x40>;
  48                         rx-fifo-depth = <0x40>;
  49                 };
  50 For CAN FD Dts file:
  51         canfd_0: canfd@40000000 {
  52                         compatible = "xlnx,canfd-1.0";
  53                         clocks = <&clkc 0>, <&clkc 1>;
  54                         clock-names = "can_clk", "s_axi_aclk";
  55                         reg = <0x40000000 0x2000>;
  56                         interrupt-parent = <&intc>;
  57                         interrupts = <0 59 1>;
  58                         tx-mailbox-count = <0x20>;
  59                         rx-fifo-depth = <0x20>;
  60                 };