| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/serial/snps-dw-apb-uart.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Synopsys DesignWare ABP UART |
| 8 | |
| 9 | maintainers: |
| 10 | - Rob Herring <robh@kernel.org> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: serial.yaml# |
| Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 14 | - $ref: rs485.yaml# |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | oneOf: |
| 19 | - items: |
| 20 | - enum: |
| 21 | - renesas,r9a06g032-uart |
| 22 | - renesas,r9a06g033-uart |
| 23 | - const: renesas,rzn1-uart |
| 24 | - items: |
| 25 | - enum: |
| 26 | - rockchip,px30-uart |
| 27 | - rockchip,rk1808-uart |
| 28 | - rockchip,rk3036-uart |
| 29 | - rockchip,rk3066-uart |
| 30 | - rockchip,rk3128-uart |
| 31 | - rockchip,rk3188-uart |
| 32 | - rockchip,rk3288-uart |
| 33 | - rockchip,rk3308-uart |
| 34 | - rockchip,rk3328-uart |
| 35 | - rockchip,rk3368-uart |
| 36 | - rockchip,rk3399-uart |
| 37 | - rockchip,rk3568-uart |
| 38 | - rockchip,rk3588-uart |
| 39 | - rockchip,rv1108-uart |
| 40 | - rockchip,rv1126-uart |
| 41 | - const: snps,dw-apb-uart |
| 42 | - items: |
| 43 | - enum: |
| 44 | - brcm,bcm11351-dw-apb-uart |
| 45 | - brcm,bcm21664-dw-apb-uart |
| 46 | - const: snps,dw-apb-uart |
| 47 | - items: |
| 48 | - enum: |
| 49 | - starfive,jh7100-hsuart |
| 50 | - starfive,jh7100-uart |
| 51 | - const: snps,dw-apb-uart |
| 52 | - const: snps,dw-apb-uart |
| 53 | |
| 54 | reg: |
| 55 | maxItems: 1 |
| 56 | |
| 57 | interrupts: |
| 58 | maxItems: 1 |
| 59 | |
| 60 | clock-frequency: true |
| 61 | |
| 62 | clocks: |
| 63 | minItems: 1 |
| 64 | maxItems: 2 |
| 65 | |
| 66 | clock-names: |
| 67 | items: |
| 68 | - const: baudclk |
| 69 | - const: apb_pclk |
| 70 | |
| 71 | dmas: |
| 72 | maxItems: 2 |
| 73 | |
| 74 | dma-names: |
| 75 | items: |
| 76 | - const: tx |
| 77 | - const: rx |
| 78 | |
| 79 | snps,uart-16550-compatible: |
| 80 | description: reflects the value of UART_16550_COMPATIBLE configuration |
| 81 | parameter. Define this if your UART does not implement the busy functionality. |
| 82 | type: boolean |
| 83 | |
| 84 | resets: |
| 85 | maxItems: 1 |
| 86 | |
| 87 | reg-shift: true |
| 88 | |
| 89 | reg-io-width: true |
| 90 | |
| 91 | dcd-override: |
| 92 | description: Override the DCD modem status signal. This signal will |
| 93 | always be reported as active instead of being obtained from the modem |
| 94 | status register. Define this if your serial port does not use this |
| 95 | pin. |
| 96 | type: boolean |
| 97 | |
| 98 | dsr-override: |
| 99 | description: Override the DTS modem status signal. This signal will |
| 100 | always be reported as active instead of being obtained from the modem |
| 101 | status register. Define this if your serial port does not use this |
| 102 | pin. |
| 103 | type: boolean |
| 104 | |
| 105 | cts-override: |
| 106 | description: Override the CTS modem status signal. This signal will |
| 107 | always be reported as active instead of being obtained from the modem |
| 108 | status register. Define this if your serial port does not use this |
| 109 | pin. |
| 110 | type: boolean |
| 111 | |
| 112 | ri-override: |
| 113 | description: Override the RI modem status signal. This signal will always |
| 114 | be reported as inactive instead of being obtained from the modem status |
| 115 | register. Define this if your serial port does not use this pin. |
| 116 | type: boolean |
| 117 | |
| 118 | required: |
| 119 | - compatible |
| 120 | - reg |
| 121 | |
| 122 | unevaluatedProperties: false |
| 123 | |
| 124 | examples: |
| 125 | - | |
| 126 | serial@80230000 { |
| 127 | compatible = "snps,dw-apb-uart"; |
| 128 | reg = <0x80230000 0x100>; |
| 129 | clock-frequency = <3686400>; |
| 130 | interrupts = <10>; |
| 131 | reg-shift = <2>; |
| 132 | reg-io-width = <4>; |
| 133 | dcd-override; |
| 134 | dsr-override; |
| 135 | cts-override; |
| 136 | ri-override; |
| 137 | }; |
| 138 | |
| 139 | - | |
| 140 | // Example with one clock: |
| 141 | serial@80230000 { |
| 142 | compatible = "snps,dw-apb-uart"; |
| 143 | reg = <0x80230000 0x100>; |
| 144 | clocks = <&baudclk>; |
| 145 | interrupts = <10>; |
| 146 | reg-shift = <2>; |
| 147 | reg-io-width = <4>; |
| 148 | }; |
| 149 | |
| 150 | - | |
| 151 | // Example with two clocks: |
| 152 | serial@80230000 { |
| 153 | compatible = "snps,dw-apb-uart"; |
| 154 | reg = <0x80230000 0x100>; |
| 155 | clocks = <&baudclk>, <&apb_pclk>; |
| 156 | clock-names = "baudclk", "apb_pclk"; |
| 157 | interrupts = <10>; |
| 158 | reg-shift = <2>; |
| 159 | reg-io-width = <4>; |
| 160 | }; |
| 161 | ... |