0001 OCTEON/OCTEON+ USB BLOCK
0002
0003 1) Main node
0004
0005 Required properties:
0006
0007 - compatible: must be "cavium,octeon-5750-usbn"
0008
0009 - reg: specifies the physical base address of the USBN block and
0010 the length of the memory mapped region.
0011
0012 - #address-cells: specifies the number of cells needed to encode an
0013 address. The value must be 2.
0014
0015 - #size-cells: specifies the number of cells used to represent the size
0016 of an address. The value must be 2.
0017
0018 - ranges: specifies the translation between child address space and parent
0019 address space.
0020
0021 - clock-frequency: speed of the USB reference clock. Allowed values are
0022 12000000, 24000000 or 48000000.
0023
0024 - cavium,refclk-type: type of the USB reference clock. Allowed values are
0025 "crystal" or "external".
0026
0027 - refclk-frequency: deprecated, use "clock-frequency".
0028
0029 - refclk-type: deprecated, use "cavium,refclk-type".
0030
0031 2) Child node
0032
0033 The main node must have one child node which describes the built-in
0034 USB controller.
0035
0036 Required properties:
0037
0038 - compatible: must be "cavium,octeon-5750-usbc"
0039
0040 - reg: specifies the physical base address of the USBC block and
0041 the length of the memory mapped region.
0042
0043 - interrupts: specifies the interrupt number for the USB controller.
0044
0045 3) Example:
0046
0047 usbn: usbn@1180068000000 {
0048 compatible = "cavium,octeon-5750-usbn";
0049 reg = <0x11800 0x68000000 0x0 0x1000>;
0050 ranges; /* Direct mapping */
0051 #address-cells = <2>;
0052 #size-cells = <2>;
0053 clock-frequency = <12000000>;
0054 cavium,refclk-type = "crystal";
0055
0056 usbc@16f0010000000 {
0057 compatible = "cavium,octeon-5750-usbc";
0058 reg = <0x16f00 0x10000000 0x0 0x80000>;
0059 interrupts = <0 56>;
0060 };
0061 };
0062
