1c66ec88fSEmmanuel VadotOMAP UART controller 2c66ec88fSEmmanuel Vadot 3c66ec88fSEmmanuel VadotRequired properties: 4*5def4c47SEmmanuel Vadot- compatible : should be "ti,am64-uart", "ti,am654-uart" for AM64 controllers 5c66ec88fSEmmanuel Vadot- compatible : should be "ti,j721e-uart", "ti,am654-uart" for J721E controllers 6c66ec88fSEmmanuel Vadot- compatible : should be "ti,am654-uart" for AM654 controllers 7c66ec88fSEmmanuel Vadot- compatible : should be "ti,omap2-uart" for OMAP2 controllers 8c66ec88fSEmmanuel Vadot- compatible : should be "ti,omap3-uart" for OMAP3 controllers 9c66ec88fSEmmanuel Vadot- compatible : should be "ti,omap4-uart" for OMAP4 controllers 10c66ec88fSEmmanuel Vadot- compatible : should be "ti,am4372-uart" for AM437x controllers 11c66ec88fSEmmanuel Vadot- compatible : should be "ti,am3352-uart" for AM335x controllers 12c66ec88fSEmmanuel Vadot- compatible : should be "ti,dra742-uart" for DRA7x controllers 13c66ec88fSEmmanuel Vadot- reg : address and length of the register space 14c66ec88fSEmmanuel Vadot- interrupts or interrupts-extended : Should contain the uart interrupt 15c66ec88fSEmmanuel Vadot specifier or both the interrupt 16c66ec88fSEmmanuel Vadot controller phandle and interrupt 17c66ec88fSEmmanuel Vadot specifier. 18c66ec88fSEmmanuel Vadot- ti,hwmods : Must be "uart<n>", n being the instance number (1-based) 19c66ec88fSEmmanuel Vadot 20c66ec88fSEmmanuel VadotOptional properties: 21c66ec88fSEmmanuel Vadot- clock-frequency : frequency of the clock input to the UART 22c66ec88fSEmmanuel Vadot- dmas : DMA specifier, consisting of a phandle to the DMA controller 23c66ec88fSEmmanuel Vadot node and a DMA channel number. 24c66ec88fSEmmanuel Vadot- dma-names : "rx" for receive channel, "tx" for transmit channel. 25c66ec88fSEmmanuel Vadot- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt 26c66ec88fSEmmanuel Vadot- rs485-rts-active-high: drive RTS high when sending (default is low). 27c66ec88fSEmmanuel Vadot- clocks: phandle to the functional clock as per 28c66ec88fSEmmanuel Vadot Documentation/devicetree/bindings/clock/clock-bindings.txt 29c66ec88fSEmmanuel Vadot 30c66ec88fSEmmanuel VadotExample: 31c66ec88fSEmmanuel Vadot 32c66ec88fSEmmanuel Vadot uart4: serial@49042000 { 33c66ec88fSEmmanuel Vadot compatible = "ti,omap3-uart"; 34c66ec88fSEmmanuel Vadot reg = <0x49042000 0x400>; 35c66ec88fSEmmanuel Vadot interrupts = <80>; 36c66ec88fSEmmanuel Vadot dmas = <&sdma 81 &sdma 82>; 37c66ec88fSEmmanuel Vadot dma-names = "tx", "rx"; 38c66ec88fSEmmanuel Vadot ti,hwmods = "uart4"; 39c66ec88fSEmmanuel Vadot clock-frequency = <48000000>; 40c66ec88fSEmmanuel Vadot }; 41