| 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 | |
| Tom Rini | 6b642ac | 2024-10-01 12:20:28 -0600 | [diff] [blame] | 16 | - if: |
| 17 | properties: |
| 18 | compatible: |
| 19 | contains: |
| 20 | const: starfive,jh7110-uart |
| 21 | then: |
| 22 | properties: |
| 23 | resets: |
| 24 | minItems: 2 |
| 25 | else: |
| 26 | properties: |
| 27 | resets: |
| 28 | maxItems: 1 |
| 29 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 30 | properties: |
| 31 | compatible: |
| 32 | oneOf: |
| 33 | - items: |
| 34 | - enum: |
| 35 | - renesas,r9a06g032-uart |
| 36 | - renesas,r9a06g033-uart |
| 37 | - const: renesas,rzn1-uart |
| 38 | - items: |
| 39 | - enum: |
| 40 | - rockchip,px30-uart |
| 41 | - rockchip,rk1808-uart |
| 42 | - rockchip,rk3036-uart |
| 43 | - rockchip,rk3066-uart |
| 44 | - rockchip,rk3128-uart |
| 45 | - rockchip,rk3188-uart |
| 46 | - rockchip,rk3288-uart |
| 47 | - rockchip,rk3308-uart |
| 48 | - rockchip,rk3328-uart |
| 49 | - rockchip,rk3368-uart |
| 50 | - rockchip,rk3399-uart |
| 51 | - rockchip,rk3568-uart |
| 52 | - rockchip,rk3588-uart |
| 53 | - rockchip,rv1108-uart |
| 54 | - rockchip,rv1126-uart |
| 55 | - const: snps,dw-apb-uart |
| 56 | - items: |
| 57 | - enum: |
| 58 | - brcm,bcm11351-dw-apb-uart |
| 59 | - brcm,bcm21664-dw-apb-uart |
| 60 | - const: snps,dw-apb-uart |
| 61 | - items: |
| 62 | - enum: |
| 63 | - starfive,jh7100-hsuart |
| 64 | - starfive,jh7100-uart |
| Tom Rini | 6b642ac | 2024-10-01 12:20:28 -0600 | [diff] [blame] | 65 | - starfive,jh7110-uart |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 66 | - const: snps,dw-apb-uart |
| 67 | - const: snps,dw-apb-uart |
| 68 | |
| 69 | reg: |
| 70 | maxItems: 1 |
| 71 | |
| 72 | interrupts: |
| 73 | maxItems: 1 |
| 74 | |
| 75 | clock-frequency: true |
| 76 | |
| 77 | clocks: |
| 78 | minItems: 1 |
| 79 | maxItems: 2 |
| 80 | |
| 81 | clock-names: |
| 82 | items: |
| 83 | - const: baudclk |
| 84 | - const: apb_pclk |
| 85 | |
| 86 | dmas: |
| 87 | maxItems: 2 |
| 88 | |
| 89 | dma-names: |
| 90 | items: |
| 91 | - const: tx |
| 92 | - const: rx |
| 93 | |
| 94 | snps,uart-16550-compatible: |
| 95 | description: reflects the value of UART_16550_COMPATIBLE configuration |
| 96 | parameter. Define this if your UART does not implement the busy functionality. |
| 97 | type: boolean |
| 98 | |
| 99 | resets: |
| Tom Rini | 6b642ac | 2024-10-01 12:20:28 -0600 | [diff] [blame] | 100 | minItems: 1 |
| 101 | maxItems: 2 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 102 | |
| 103 | reg-shift: true |
| 104 | |
| 105 | reg-io-width: true |
| 106 | |
| 107 | dcd-override: |
| 108 | description: Override the DCD modem status signal. This signal will |
| 109 | always be reported as active instead of being obtained from the modem |
| 110 | status register. Define this if your serial port does not use this |
| 111 | pin. |
| 112 | type: boolean |
| 113 | |
| 114 | dsr-override: |
| 115 | description: Override the DTS modem status signal. This signal will |
| 116 | always be reported as active instead of being obtained from the modem |
| 117 | status register. Define this if your serial port does not use this |
| 118 | pin. |
| 119 | type: boolean |
| 120 | |
| 121 | cts-override: |
| 122 | description: Override the CTS modem status signal. This signal will |
| 123 | always be reported as active instead of being obtained from the modem |
| 124 | status register. Define this if your serial port does not use this |
| 125 | pin. |
| 126 | type: boolean |
| 127 | |
| 128 | ri-override: |
| 129 | description: Override the RI modem status signal. This signal will always |
| 130 | be reported as inactive instead of being obtained from the modem status |
| 131 | register. Define this if your serial port does not use this pin. |
| 132 | type: boolean |
| 133 | |
| 134 | required: |
| 135 | - compatible |
| 136 | - reg |
| 137 | |
| 138 | unevaluatedProperties: false |
| 139 | |
| 140 | examples: |
| 141 | - | |
| 142 | serial@80230000 { |
| 143 | compatible = "snps,dw-apb-uart"; |
| 144 | reg = <0x80230000 0x100>; |
| 145 | clock-frequency = <3686400>; |
| 146 | interrupts = <10>; |
| 147 | reg-shift = <2>; |
| 148 | reg-io-width = <4>; |
| 149 | dcd-override; |
| 150 | dsr-override; |
| 151 | cts-override; |
| 152 | ri-override; |
| 153 | }; |
| 154 | |
| 155 | - | |
| 156 | // Example with one clock: |
| 157 | serial@80230000 { |
| 158 | compatible = "snps,dw-apb-uart"; |
| 159 | reg = <0x80230000 0x100>; |
| 160 | clocks = <&baudclk>; |
| 161 | interrupts = <10>; |
| 162 | reg-shift = <2>; |
| 163 | reg-io-width = <4>; |
| 164 | }; |
| 165 | |
| 166 | - | |
| 167 | // Example with two clocks: |
| 168 | serial@80230000 { |
| 169 | compatible = "snps,dw-apb-uart"; |
| 170 | reg = <0x80230000 0x100>; |
| 171 | clocks = <&baudclk>, <&apb_pclk>; |
| 172 | clock-names = "baudclk", "apb_pclk"; |
| 173 | interrupts = <10>; |
| 174 | reg-shift = <2>; |
| 175 | reg-io-width = <4>; |
| 176 | }; |
| 177 | ... |