| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/serial/8250_omap.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: 8250 compliant UARTs on TI's OMAP2+ and K3 SoCs |
| 8 | |
| 9 | maintainers: |
| 10 | - Vignesh Raghavendra <vigneshr@ti.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: /schemas/serial/serial.yaml# |
| 14 | - $ref: /schemas/serial/rs485.yaml# |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | oneOf: |
| 19 | - enum: |
| 20 | - ti,am3352-uart |
| 21 | - ti,am4372-uart |
| 22 | - ti,am654-uart |
| 23 | - ti,dra742-uart |
| 24 | - ti,omap2-uart |
| 25 | - ti,omap3-uart |
| 26 | - ti,omap4-uart |
| 27 | - items: |
| 28 | - enum: |
| 29 | - ti,am64-uart |
| 30 | - ti,j721e-uart |
| 31 | - const: ti,am654-uart |
| 32 | |
| 33 | ti,hwmods: |
| 34 | description: |
| 35 | Must be "uart<n>", n being the instance number (1-based) |
| 36 | This property is applicable only on legacy platforms mainly omap2/3 |
| 37 | and ti81xx and should not be used on other platforms. |
| 38 | $ref: /schemas/types.yaml#/definitions/string |
| 39 | deprecated: true |
| 40 | |
| 41 | dmas: |
| 42 | minItems: 1 |
| 43 | maxItems: 2 |
| 44 | |
| 45 | dma-names: |
| 46 | items: |
| 47 | - const: tx |
| 48 | - const: rx |
| 49 | |
| 50 | reg: |
| 51 | maxItems: 1 |
| 52 | |
| 53 | interrupts: |
| 54 | minItems: 1 |
| 55 | maxItems: 2 |
| 56 | description: |
| 57 | First entry is module IRQ required for normal IO operation. |
| 58 | Second entry is optional and corresponds to system wakeup IRQ |
| 59 | where supported. |
| 60 | |
| 61 | clocks: |
| 62 | maxItems: 1 |
| 63 | |
| 64 | clock-names: |
| 65 | const: fclk |
| 66 | |
| 67 | rts-gpios: true |
| 68 | cts-gpios: true |
| 69 | dtr-gpios: true |
| 70 | dsr-gpios: true |
| 71 | rng-gpios: true |
| 72 | dcd-gpios: true |
| 73 | rs485-rts-active-high: true |
| 74 | rts-gpio: true |
| 75 | power-domains: true |
| 76 | clock-frequency: true |
| 77 | current-speed: true |
| 78 | overrun-throttle-ms: true |
| 79 | |
| 80 | required: |
| 81 | - compatible |
| 82 | - reg |
| 83 | - interrupts |
| 84 | |
| 85 | unevaluatedProperties: false |
| 86 | |
| 87 | if: |
| 88 | properties: |
| 89 | compatible: |
| 90 | contains: |
| 91 | enum: |
| 92 | - ti,omap2-uart |
| 93 | - ti,omap3-uart |
| 94 | - ti,omap4-uart |
| 95 | |
| 96 | then: |
| 97 | properties: |
| 98 | ti,hwmods: |
| 99 | items: |
| 100 | - pattern: "^uart([1-9])$" |
| 101 | |
| 102 | else: |
| 103 | properties: |
| 104 | ti,hwmods: false |
| 105 | |
| 106 | examples: |
| 107 | - | |
| 108 | serial@49042000 { |
| 109 | compatible = "ti,omap3-uart"; |
| 110 | reg = <0x49042000 0x400>; |
| 111 | interrupts = <80>; |
| 112 | dmas = <&sdma 81 &sdma 82>; |
| 113 | dma-names = "tx", "rx"; |
| 114 | ti,hwmods = "uart4"; |
| 115 | clock-frequency = <48000000>; |
| 116 | }; |