1 OMAP UART controller 2 3 Required properties: 4 - compatible : should be "ti,omap2-uart" for OMAP2 controllers 5 - compatible : should be "ti,omap3-uart" for OMAP3 controllers 6 - compatible : should be "ti,omap4-uart" for OMAP4 controllers 7 - compatible : should be "ti,am4372-uart" for AM437x controllers 8 - compatible : should be "ti,am3352-uart" for AM335x controllers 9 - compatible : should be "ti,dra742-uart" for DRA7x controllers 10 - reg : address and length of the register space 11 - interrupts or interrupts-extended : Should contain the uart interrupt 12 specifier or both the interrupt 13 controller phandle and interrupt 14 specifier. 15 - ti,hwmods : Must be "uart<n>", n being the instance number (1-based) 16 17 Optional properties: 18 - clock-frequency : frequency of the clock input to the UART 19 - dmas : DMA specifier, consisting of a phandle to the DMA controller 20 node and a DMA channel number. 21 - dma-names : "rx" for receive channel, "tx" for transmit channel. 22 23 Example: 24 25 uart4: serial@49042000 { 26 compatible = "ti,omap3-uart"; 27 reg = <0x49042000 0x400>; 28 interrupts = <80>; 29 dmas = <&sdma 81 &sdma 82>; 30 dma-names = "tx", "rx"; 31 ti,hwmods = "uart4"; 32 clock-frequency = <48000000>; 33 }; 34
