From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../devicetree/bindings/serial/fsl-mxs-auart.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt (limited to 'kernel/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt') diff --git a/kernel/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt b/kernel/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt new file mode 100644 index 000000000..7c408c87e --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/serial/fsl-mxs-auart.txt @@ -0,0 +1,45 @@ +* Freescale MXS Application UART (AUART) + +Required properties: +- compatible : Should be "fsl,-auart". The supported SoCs include + imx23 and imx28. +- reg : Address and length of the register set for the device +- interrupts : Should contain the auart interrupt numbers +- 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. + +Optional properties: +- fsl,uart-has-rtscts : Indicate the UART has RTS and CTS lines + for hardware flow control, + it also means you enable the DMA support for this UART. +- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD + line respectively. It will use specified PIO instead of the peripheral + function pin for the USART feature. + If unsure, don't specify this property. + +Example: +auart0: serial@8006a000 { + compatible = "fsl,imx28-auart", "fsl,imx23-auart"; + reg = <0x8006a000 0x2000>; + interrupts = <112>; + dmas = <&dma_apbx 8>, <&dma_apbx 9>; + dma-names = "rx", "tx"; + cts-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>; + dsr-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>; + dcd-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>; +}; + +Note: Each auart port should have an alias correctly numbered in "aliases" +node. + +Example: + +aliases { + serial0 = &auart0; + serial1 = &auart1; + serial2 = &auart2; + serial3 = &auart3; + serial4 = &auart4; +}; -- cgit 1.2.3-korg