1df230079SRob Herring# SPDX-License-Identifier: GPL-2.0 2df230079SRob Herring%YAML 1.2 3df230079SRob Herring--- 4df230079SRob Herring$id: http://devicetree.org/schemas/serial/snps-dw-apb-uart.yaml# 5df230079SRob Herring$schema: http://devicetree.org/meta-schemas/core.yaml# 6df230079SRob Herring 7df230079SRob Herringtitle: Synopsys DesignWare ABP UART 8df230079SRob Herring 9df230079SRob Herringmaintainers: 10df230079SRob Herring - Rob Herring <robh@kernel.org> 11df230079SRob Herring 12df230079SRob HerringallOf: 138f082dcfSZhen Lei - $ref: serial.yaml# 14df230079SRob Herring 15df230079SRob Herringproperties: 16df230079SRob Herring compatible: 17df230079SRob Herring oneOf: 18df230079SRob Herring - items: 19df230079SRob Herring - enum: 20896efccfSRob Herring - renesas,r9a06g032-uart 21896efccfSRob Herring - renesas,r9a06g033-uart 22896efccfSRob Herring - const: renesas,rzn1-uart 23896efccfSRob Herring - items: 24896efccfSRob Herring - enum: 25df230079SRob Herring - rockchip,px30-uart 261d751b04SAndreas Färber - rockchip,rk1808-uart 27df230079SRob Herring - rockchip,rk3036-uart 28df230079SRob Herring - rockchip,rk3066-uart 29df230079SRob Herring - rockchip,rk3188-uart 30df230079SRob Herring - rockchip,rk3288-uart 31ae9fdd23SJohan Jonker - rockchip,rk3308-uart 32df230079SRob Herring - rockchip,rk3328-uart 33df230079SRob Herring - rockchip,rk3368-uart 34df230079SRob Herring - rockchip,rk3399-uart 3552008ebdSLiang Chen - rockchip,rk3568-uart 36df230079SRob Herring - rockchip,rv1108-uart 37df230079SRob Herring - const: snps,dw-apb-uart 38df230079SRob Herring - items: 39df230079SRob Herring - enum: 40df230079SRob Herring - brcm,bcm11351-dw-apb-uart 41df230079SRob Herring - brcm,bcm21664-dw-apb-uart 42df230079SRob Herring - const: snps,dw-apb-uart 43*d0b65b15SEmil Renner Berthing - items: 44*d0b65b15SEmil Renner Berthing - enum: 45*d0b65b15SEmil Renner Berthing - starfive,jh7100-hsuart 46*d0b65b15SEmil Renner Berthing - starfive,jh7100-uart 47*d0b65b15SEmil Renner Berthing - const: snps,dw-apb-uart 48df230079SRob Herring - const: snps,dw-apb-uart 49df230079SRob Herring 50df230079SRob Herring reg: 51df230079SRob Herring maxItems: 1 52df230079SRob Herring 53df230079SRob Herring interrupts: 54df230079SRob Herring maxItems: 1 55df230079SRob Herring 56df230079SRob Herring clock-frequency: true 57df230079SRob Herring 58df230079SRob Herring clocks: 59df230079SRob Herring minItems: 1 60df230079SRob Herring maxItems: 2 61df230079SRob Herring 62df230079SRob Herring clock-names: 63df230079SRob Herring items: 64df230079SRob Herring - const: baudclk 65df230079SRob Herring - const: apb_pclk 66df230079SRob Herring 67df230079SRob Herring snps,uart-16550-compatible: 68df230079SRob Herring description: reflects the value of UART_16550_COMPATIBLE configuration 69df230079SRob Herring parameter. Define this if your UART does not implement the busy functionality. 70df230079SRob Herring type: boolean 71df230079SRob Herring 72df230079SRob Herring resets: 73df230079SRob Herring maxItems: 1 74df230079SRob Herring 75df230079SRob Herring reg-shift: true 76df230079SRob Herring 77df230079SRob Herring reg-io-width: true 78df230079SRob Herring 79df230079SRob Herring dcd-override: 80df230079SRob Herring description: Override the DCD modem status signal. This signal will 81df230079SRob Herring always be reported as active instead of being obtained from the modem 82df230079SRob Herring status register. Define this if your serial port does not use this 83df230079SRob Herring pin. 84df230079SRob Herring type: boolean 85df230079SRob Herring 86df230079SRob Herring dsr-override: 87df230079SRob Herring description: Override the DTS modem status signal. This signal will 88df230079SRob Herring always be reported as active instead of being obtained from the modem 89df230079SRob Herring status register. Define this if your serial port does not use this 90df230079SRob Herring pin. 91df230079SRob Herring type: boolean 92df230079SRob Herring 93df230079SRob Herring cts-override: 94df230079SRob Herring description: Override the CTS modem status signal. This signal will 95df230079SRob Herring always be reported as active instead of being obtained from the modem 96df230079SRob Herring status register. Define this if your serial port does not use this 97df230079SRob Herring pin. 98df230079SRob Herring type: boolean 99df230079SRob Herring 100df230079SRob Herring ri-override: 101df230079SRob Herring description: Override the RI modem status signal. This signal will always 102df230079SRob Herring be reported as inactive instead of being obtained from the modem status 103df230079SRob Herring register. Define this if your serial port does not use this pin. 104df230079SRob Herring type: boolean 105df230079SRob Herring 106df230079SRob Herringrequired: 107df230079SRob Herring - compatible 108df230079SRob Herring - reg 109df230079SRob Herring - interrupts 110df230079SRob Herring 1116fdc6e23SRob HerringunevaluatedProperties: false 1126fdc6e23SRob Herring 113df230079SRob Herringexamples: 114df230079SRob Herring - | 115df230079SRob Herring serial@80230000 { 116df230079SRob Herring compatible = "snps,dw-apb-uart"; 117df230079SRob Herring reg = <0x80230000 0x100>; 118df230079SRob Herring clock-frequency = <3686400>; 119df230079SRob Herring interrupts = <10>; 120df230079SRob Herring reg-shift = <2>; 121df230079SRob Herring reg-io-width = <4>; 122df230079SRob Herring dcd-override; 123df230079SRob Herring dsr-override; 124df230079SRob Herring cts-override; 125df230079SRob Herring ri-override; 126df230079SRob Herring }; 127df230079SRob Herring 128df230079SRob Herring - | 129df230079SRob Herring // Example with one clock: 130df230079SRob Herring serial@80230000 { 131df230079SRob Herring compatible = "snps,dw-apb-uart"; 132df230079SRob Herring reg = <0x80230000 0x100>; 133df230079SRob Herring clocks = <&baudclk>; 134df230079SRob Herring interrupts = <10>; 135df230079SRob Herring reg-shift = <2>; 136df230079SRob Herring reg-io-width = <4>; 137df230079SRob Herring }; 138df230079SRob Herring 139df230079SRob Herring - | 140df230079SRob Herring // Example with two clocks: 141df230079SRob Herring serial@80230000 { 142df230079SRob Herring compatible = "snps,dw-apb-uart"; 143df230079SRob Herring reg = <0x80230000 0x100>; 144df230079SRob Herring clocks = <&baudclk>, <&apb_pclk>; 145df230079SRob Herring clock-names = "baudclk", "apb_pclk"; 146df230079SRob Herring interrupts = <10>; 147df230079SRob Herring reg-shift = <2>; 148df230079SRob Herring reg-io-width = <4>; 149df230079SRob Herring }; 150df230079SRob Herring... 151