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altera pcie msi

Guest on 22nd August 2022 01:05:01 AM

  1. * Altera PCIe MSI controller
  2.  
  3. Required properties:
  4. - compatible:   should contain "altr,msi-1.0"
  5. - reg:          specifies the physical base address of the controller and
  6.                 the length of the memory mapped region.
  7. - reg-names:    must include the following entries:
  8.                 "csr": CSR registers
  9.                 "vector_slave": vectors slave port region
  10. - interrupts:   specifies the interrupt source of the parent interrupt
  11.                 controller. The format of the interrupt specifier depends on the
  12.                 parent interrupt controller.
  13. - num-vectors:  number of vectors, range 1 to 32.
  14. - msi-controller:       indicates that this is MSI controller node
  15.  
  16.  
  17. Example
  18. msi0: msi@0xFF200000 {
  19.         compatible = "altr,msi-1.0";
  20.         reg = <0xFF200000 0x00000010
  21.                 0xFF200010 0x00000080>;
  22.         reg-names = "csr", "vector_slave";
  23.         interrupt-parent = <&hps_0_arm_gic_0>;
  24.         interrupts = <0 42 4>;
  25.         msi-controller;
  26.         num-vectors = <32>;
  27. };

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