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[09/10] spi: Add SSP/SPI device tree documentation

Message ID 1342440597-8395-10-git-send-email-marex@denx.de (mailing list archive)
State New, archived
Headers show

Commit Message

Marek Vasut July 16, 2012, 12:09 p.m. UTC 
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Detlev Zundel <dzu@denx.de>
CC: Dong Aisheng <b29396@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Linux ARM kernel <linux-arm-kernel@lists.infradead.org>
Cc: Rob Herring <rob.herring@calxeda.com>
CC: Shawn Guo <shawn.guo@linaro.org>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
---
 Documentation/devicetree/bindings/spi/mxs-spi.txt |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/mxs-spi.txt
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Patch

diff --git a/Documentation/devicetree/bindings/spi/mxs-spi.txt b/Documentation/devicetree/bindings/spi/mxs-spi.txt
new file mode 100644
index 0000000..f1263a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/mxs-spi.txt
@@ -0,0 +1,18 @@ 
+* Freescale MX233/MX28 SSP/SPI
+
+Required properties:
+- compatible: Should be "fsl,<soc>-spi", where soc is "imx23" or "imx28"
+- reg: Offset and length of the register set for the device
+- interrupts: Should contain SSP interrupts (error irq first, dma irq second)
+- fsl,ssp-dma-channel: APBX DMA channel for the SSP
+
+Example:
+
+ssp0: ssp@80010000 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	compatible = "fsl,imx28-spi";
+	reg = <0x80010000 2000>;
+	interrupts = <96 82>;
+	fsl,ssp-dma-channel = <0>;
+};