Kernel-4.18.0-80.el8_ux500-usb

Ux500 MUSB

Required properties:

  • compatible : Should be “stericsson,db8500-musb”
  • reg : Offset and length of registers
  • interrupts : Interrupt; mode, number and trigger
  • dr_mode : Dual-role; either host mode “host”, peripheral mode “peripheral”
             or both "otg"
    

Optional properties:

  • dmas : A list of dma channels;
             dma-controller, event-line, fixed-channel, flags
    
  • dma-names : An ordered list of channel names affiliated to the above

Example:

usb_per5@a03e0000 {
compatible = “stericsson,db8500-musb”;
reg = <0xa03e0000 0x10000>;
interrupts = <0 23 0x4>;
interrupt-names = “mc”;

dr_mode = "otg";

dmas = <&dma 38 0 0x2>, /* Logical - DevToMem */
       <&dma 38 0 0x0>, /* Logical - MemToDev */
       <&dma 37 0 0x2>, /* Logical - DevToMem */
       <&dma 37 0 0x0>, /* Logical - MemToDev */
       <&dma 36 0 0x2>, /* Logical - DevToMem */
       <&dma 36 0 0x0>, /* Logical - MemToDev */
       <&dma 19 0 0x2>, /* Logical - DevToMem */
       <&dma 19 0 0x0>, /* Logical - MemToDev */
       <&dma 18 0 0x2>, /* Logical - DevToMem */
       <&dma 18 0 0x0>, /* Logical - MemToDev */
       <&dma 17 0 0x2>, /* Logical - DevToMem */
       <&dma 17 0 0x0>, /* Logical - MemToDev */
       <&dma 16 0 0x2>, /* Logical - DevToMem */
       <&dma 16 0 0x0>, /* Logical - MemToDev */
       <&dma 39 0 0x2>, /* Logical - DevToMem */
       <&dma 39 0 0x0>; /* Logical - MemToDev */

dma-names = "iep_1_9",  "oep_1_9",
        "iep_2_10", "oep_2_10",
        "iep_3_11", "oep_3_11",
        "iep_4_12", "oep_4_12",
        "iep_5_13", "oep_5_13",
        "iep_6_14", "oep_6_14",
        "iep_7_15", "oep_7_15",
        "iep_8",    "oep_8";

};