Kernel-4.18.0-80.el8_altera-hps2fpga-bridge

Altera FPGA/HPS Bridge Driver

Required properties:

• regs : base address and size for AXI bridge module
• compatible : Should contain one of:

      "altr,socfpga-lwhps2fpga-bridge",
      "altr,socfpga-hps2fpga-bridge", or
      "altr,socfpga-fpga2hps-bridge"
  

• resets : Phandle and reset specifier for this bridge’s reset
• clocks : Clocks used by this module.

Optional properties:

• bridge-enable : 0 if driver should disable bridge at startup.

      1 if driver should enable bridge at startup.
      Default is to leave bridge in its current state.
  

Example:
fpga_bridge0: fpga-bridge@ff400000 {
compatible = “altr,socfpga-lwhps2fpga-bridge”;
reg = <0xff400000 0x100000>;
resets = <&rst LWHPS2FPGA_RESET>;
clocks = <&l4_main_clk>;
bridge-enable = <0>;
};

fpga_bridge1: fpga-bridge@ff500000 {
    compatible = "altr,socfpga-hps2fpga-bridge";
    reg = <0xff500000 0x10000>;
    resets = <&rst HPS2FPGA_RESET>;
    clocks = <&l4_main_clk>;
    bridge-enable = <1>;
};

fpga_bridge2: fpga-bridge@ff600000 {
    compatible = "altr,socfpga-fpga2hps-bridge";
    reg = <0xff600000 0x100000>;
    resets = <&rst FPGA2HPS_RESET>;
    clocks = <&l4_main_clk>;
};