diff options
Diffstat (limited to 'Documentation/devicetree/bindings/tty')
| -rw-r--r-- | Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt | 16 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/tty/serial/of-serial.txt | 4 |
2 files changed, 11 insertions, 9 deletions
diff --git a/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt b/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt index 273a8d5b330..2c00ec64628 100644 --- a/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt +++ b/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt @@ -5,20 +5,18 @@ Required properties: imx23 and imx28. - reg : Address and length of the register set for the device - interrupts : Should contain the auart interrupt numbers - -Optional properties: -- fsl,auart-dma-channel : The DMA channels, the first is for RX, the other - is for TX. If you add this property, it also means that you - will enable the DMA support for the auart. - Note: due to the hardware bug in imx23(see errata : 2836), - only the imx28 can enable the DMA support for the auart. +- dmas: DMA specifier, consisting of a phandle to DMA controller node + and AUART DMA channel ID. + Refer to dma.txt and fsl-mxs-dma.txt for details. +- dma-names: "rx" for RX channel, "tx" for TX channel. Example: auart0: serial@8006a000 { compatible = "fsl,imx28-auart", "fsl,imx23-auart"; reg = <0x8006a000 0x2000>; - interrupts = <112 70 71>; - fsl,auart-dma-channel = <8 9>; + interrupts = <112>; + dmas = <&dma_apbx 8>, <&dma_apbx 9>; + dma-names = "rx", "tx"; }; Note: Each auart port should have an alias correctly numbered in "aliases" diff --git a/Documentation/devicetree/bindings/tty/serial/of-serial.txt b/Documentation/devicetree/bindings/tty/serial/of-serial.txt index 8f01cb190f2..1928a3e83cd 100644 --- a/Documentation/devicetree/bindings/tty/serial/of-serial.txt +++ b/Documentation/devicetree/bindings/tty/serial/of-serial.txt @@ -33,6 +33,10 @@ Optional properties: RTAS and should not be registered. - no-loopback-test: set to indicate that the port does not implements loopback test mode +- fifo-size: the fifo size of the UART. +- auto-flow-control: one way to enable automatic flow control support. The + driver is allowed to detect support for the capability even without this + property. Example: |