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Rajendra Nayakd92b0df2011-12-14 17:25:45 +05301OMAP UART controller
2
3Required 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
Sekhar Norid879aea2015-07-14 13:32:04 +05307- compatible : should be "ti,am4372-uart" for AM437x controllers
Matt Porter5c8a5212015-02-26 10:38:45 -05008- reg : address and length of the register space
9- interrupts or interrupts-extended : Should contain the uart interrupt
10 specifier or both the interrupt
11 controller phandle and interrupt
12 specifier.
Rajendra Nayakd92b0df2011-12-14 17:25:45 +053013- ti,hwmods : Must be "uart<n>", n being the instance number (1-based)
14
15Optional properties:
16- clock-frequency : frequency of the clock input to the UART
Matt Porter5c8a5212015-02-26 10:38:45 -050017- dmas : DMA specifier, consisting of a phandle to the DMA controller
18 node and a DMA channel number.
19- dma-names : "rx" for receive channel, "tx" for transmit channel.
20
21Example:
22
23 uart4: serial@49042000 {
24 compatible = "ti,omap3-uart";
25 reg = <0x49042000 0x400>;
26 interrupts = <80>;
27 dmas = <&sdma 81 &sdma 82>;
28 dma-names = "tx", "rx";
29 ti,hwmods = "uart4";
30 clock-frequency = <48000000>;
31 };