1OCTEON/OCTEON+ USB BLOCK 2 31) Main node 4 5 Required properties: 6 7 - compatible: must be "cavium,octeon-5750-usbn" 8 9 - reg: specifies the physical base address of the USBN block and 10 the length of the memory mapped region. 11 12 - #address-cells: specifies the number of cells needed to encode an 13 address. The value must be 2. 14 15 - #size-cells: specifies the number of cells used to represent the size 16 of an address. The value must be 2. 17 18 - ranges: specifies the translation between child address space and parent 19 address space. 20 21 - clock-frequency: speed of the USB reference clock. Allowed values are 22 12000000, 24000000 or 48000000. 23 24 - cavium,refclk-type: type of the USB reference clock. Allowed values are 25 "crystal" or "external". 26 27 - refclk-frequency: deprecated, use "clock-frequency". 28 29 - refclk-type: deprecated, use "cavium,refclk-type". 30 312) Child node 32 33 The main node must have one child node which describes the built-in 34 USB controller. 35 36 Required properties: 37 38 - compatible: must be "cavium,octeon-5750-usbc" 39 40 - reg: specifies the physical base address of the USBC block and 41 the length of the memory mapped region. 42 43 - interrupts: specifies the interrupt number for the USB controller. 44 453) Example: 46 47 usbn: usbn@1180068000000 { 48 compatible = "cavium,octeon-5750-usbn"; 49 reg = <0x11800 0x68000000 0x0 0x1000>; 50 ranges; /* Direct mapping */ 51 #address-cells = <2>; 52 #size-cells = <2>; 53 clock-frequency = <12000000>; 54 cavium,refclk-type = "crystal"; 55 56 usbc@16f0010000000 { 57 compatible = "cavium,octeon-5750-usbc"; 58 reg = <0x16f00 0x10000000 0x0 0x80000>; 59 interrupts = <0 56>; 60 }; 61 }; 62 63