Commit | Line | Data |
---|---|---|
d92b0dfc RN |
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 | |
d879aeaa | 7 | - compatible : should be "ti,am4372-uart" for AM437x controllers |
4fcdff9b | 8 | - compatible : should be "ti,am3352-uart" for AM335x controllers |
27c93af7 | 9 | - compatible : should be "ti,dra742-uart" for DRA7x controllers |
5c8a521d MP |
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. | |
d92b0dfc RN |
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 | |
5c8a521d MP |
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 | }; |