diff options
| author | Thomas Chou <thomas@wytron.com.tw> | 2015-12-14 20:45:08 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-01-25 10:40:03 -0500 |
| commit | 75219d57efc6bbbfcefa8af77a276d97ecea9720 (patch) | |
| tree | 00143942d9f64c2d3141dc6718725bc0ee62281a /doc/device-tree-bindings/serial/omap_serial.txt | |
| parent | b99353b8ac9f7aeda34e7cd2ed757b605df2666e (diff) | |
ns16550: replace with binding files from Linux kernel
Replace ns16550.txt with binding files from Linux kernel. As suggested
by Stephen Warren, we should keep the directory structure, filenames,
and file content identical to the bindings in the Linux kernel.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc/device-tree-bindings/serial/omap_serial.txt')
| -rw-r--r-- | doc/device-tree-bindings/serial/omap_serial.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/serial/omap_serial.txt b/doc/device-tree-bindings/serial/omap_serial.txt new file mode 100644 index 0000000000..7a71b5de77 --- /dev/null +++ b/doc/device-tree-bindings/serial/omap_serial.txt @@ -0,0 +1,33 @@ +OMAP UART controller + +Required properties: +- compatible : should be "ti,omap2-uart" for OMAP2 controllers +- compatible : should be "ti,omap3-uart" for OMAP3 controllers +- compatible : should be "ti,omap4-uart" for OMAP4 controllers +- compatible : should be "ti,am4372-uart" for AM437x controllers +- compatible : should be "ti,am3352-uart" for AM335x controllers +- compatible : should be "ti,dra742-uart" for DRA7x controllers +- reg : address and length of the register space +- interrupts or interrupts-extended : Should contain the uart interrupt + specifier or both the interrupt + controller phandle and interrupt + specifier. +- ti,hwmods : Must be "uart<n>", n being the instance number (1-based) + +Optional properties: +- clock-frequency : frequency of the clock input to the UART +- dmas : DMA specifier, consisting of a phandle to the DMA controller + node and a DMA channel number. +- dma-names : "rx" for receive channel, "tx" for transmit channel. + +Example: + + uart4: serial@49042000 { + compatible = "ti,omap3-uart"; + reg = <0x49042000 0x400>; + interrupts = <80>; + dmas = <&sdma 81 &sdma 82>; + dma-names = "tx", "rx"; + ti,hwmods = "uart4"; + clock-frequency = <48000000>; + }; |