| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright 2021 Linaro Ltd. |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/net/intel,ixp4xx-hss.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Intel IXP4xx V.35 WAN High Speed Serial Link (HSS) |
| 9 | |
| 10 | maintainers: |
| 11 | - Linus Walleij <linus.walleij@linaro.org> |
| 12 | |
| 13 | description: | |
| 14 | The Intel IXP4xx HSS makes use of the IXP4xx NPE (Network |
| 15 | Processing Engine) and the IXP4xx Queue Manager to process |
| 16 | V.35 Wideband Modem (WAN) links. |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | const: intel,ixp4xx-hss |
| 21 | |
| 22 | reg: |
| 23 | maxItems: 1 |
| 24 | description: The HSS instance |
| 25 | |
| 26 | intel,npe-handle: |
| 27 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 28 | items: |
| 29 | items: |
| 30 | - description: phandle to the NPE this HSS instance is using |
| 31 | - description: the NPE instance number |
| 32 | description: phandle to the NPE this HSS instance is using |
| 33 | and the instance to use in the second cell |
| 34 | |
| 35 | intel,queue-chl-rxtrig: |
| 36 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 37 | items: |
| 38 | - items: |
| 39 | - description: phandle to the RX trigger queue on the NPE |
| 40 | - description: the queue instance number |
| 41 | description: phandle to the RX trigger queue on the NPE |
| 42 | |
| 43 | intel,queue-chl-txready: |
| 44 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 45 | items: |
| 46 | - items: |
| 47 | - description: phandle to the TX ready queue on the NPE |
| 48 | - description: the queue instance number |
| 49 | description: phandle to the TX ready queue on the NPE |
| 50 | |
| 51 | intel,queue-pkt-rx: |
| 52 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 53 | items: |
| 54 | - items: |
| 55 | - description: phandle to the RX queue on the NPE |
| 56 | - description: the queue instance number |
| 57 | description: phandle to the packet RX queue on the NPE |
| 58 | |
| 59 | intel,queue-pkt-tx: |
| 60 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 61 | maxItems: 4 |
| 62 | items: |
| 63 | items: |
| 64 | - description: phandle to the TX queue on the NPE |
| 65 | - description: the queue instance number |
| 66 | description: phandle to the packet TX0, TX1, TX2 and TX3 queues on the NPE |
| 67 | |
| 68 | intel,queue-pkt-rxfree: |
| 69 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 70 | maxItems: 4 |
| 71 | items: |
| 72 | items: |
| 73 | - description: phandle to the RXFREE queue on the NPE |
| 74 | - description: the queue instance number |
| 75 | description: phandle to the packet RXFREE0, RXFREE1, RXFREE2 and |
| 76 | RXFREE3 queues on the NPE |
| 77 | |
| 78 | intel,queue-pkt-txdone: |
| 79 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 80 | items: |
| 81 | - items: |
| 82 | - description: phandle to the TXDONE queue on the NPE |
| 83 | - description: the queue instance number |
| 84 | description: phandle to the packet TXDONE queue on the NPE |
| 85 | |
| 86 | cts-gpios: |
| 87 | maxItems: 1 |
| 88 | description: Clear To Send (CTS) GPIO line |
| 89 | |
| 90 | rts-gpios: |
| 91 | maxItems: 1 |
| 92 | description: Ready To Send (RTS) GPIO line |
| 93 | |
| 94 | dcd-gpios: |
| 95 | maxItems: 1 |
| 96 | description: Data Carrier Detect (DCD) GPIO line |
| 97 | |
| 98 | dtr-gpios: |
| 99 | maxItems: 1 |
| 100 | description: Data Terminal Ready (DTR) GPIO line |
| 101 | |
| 102 | clk-internal-gpios: |
| 103 | maxItems: 1 |
| 104 | description: Clock internal GPIO line, driving this high will make the HSS |
| 105 | use internal clocking as opposed to external clocking |
| 106 | |
| 107 | required: |
| 108 | - compatible |
| 109 | - reg |
| 110 | - intel,npe-handle |
| 111 | - intel,queue-chl-rxtrig |
| 112 | - intel,queue-chl-txready |
| 113 | - intel,queue-pkt-rx |
| 114 | - intel,queue-pkt-tx |
| 115 | - intel,queue-pkt-rxfree |
| 116 | - intel,queue-pkt-txdone |
| 117 | - cts-gpios |
| 118 | - rts-gpios |
| 119 | - dcd-gpios |
| 120 | - dtr-gpios |
| 121 | - clk-internal-gpios |
| 122 | |
| 123 | additionalProperties: false |