| OCTEON/OCTEON+ USB BLOCK |
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| 1) Main node |
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| Required properties: |
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| - compatible: must be "cavium,octeon-5750-usbn" |
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| - reg: specifies the physical base address of the USBN block and |
| the length of the memory mapped region. |
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| - #address-cells: specifies the number of cells needed to encode an |
| address. The value must be 2. |
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| - #size-cells: specifies the number of cells used to represent the size |
| of an address. The value must be 2. |
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| - ranges: specifies the translation between child address space and parent |
| address space. |
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| - clock-frequency: speed of the USB reference clock. Allowed values are |
| 12000000, 24000000 or 48000000. |
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| - cavium,refclk-type: type of the USB reference clock. Allowed values are |
| "crystal" or "external". |
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| - refclk-frequency: deprecated, use "clock-frequency". |
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| - refclk-type: deprecated, use "cavium,refclk-type". |
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| 2) Child node |
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| The main node must have one child node which describes the built-in |
| USB controller. |
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| Required properties: |
| |
| - compatible: must be "cavium,octeon-5750-usbc" |
| |
| - reg: specifies the physical base address of the USBC block and |
| the length of the memory mapped region. |
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| - interrupts: specifies the interrupt number for the USB controller. |
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| 3) Example: |
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| usbn: usbn@1180068000000 { |
| compatible = "cavium,octeon-5750-usbn"; |
| reg = <0x11800 0x68000000 0x0 0x1000>; |
| ranges; /* Direct mapping */ |
| #address-cells = <2>; |
| #size-cells = <2>; |
| clock-frequency = <12000000>; |
| cavium,refclk-type = "crystal"; |
| |
| usbc@16f0010000000 { |
| compatible = "cavium,octeon-5750-usbc"; |
| reg = <0x16f00 0x10000000 0x0 0x80000>; |
| interrupts = <0 56>; |
| }; |
| }; |
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