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authorMarek Vasut2012-08-03 17:26:14 +0200
committerMark Brown2012-08-17 22:54:20 +0100
commit4ad1e5b5d1dde19f09e728ba8b5164968f9dabeb (patch)
treebc1d91c6895dc070da3a6aafd1d5e31ac6b88ef5 /Documentation
parent474afc042fb9db8f88b68243f78a38cb764692fc (diff)
spi/mxs: Add SSP/SPI device tree documentation
Signed-off-by: Marek Vasut <marex@denx.de> Acked-by: Chris Ball <cjb@laptop.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/spi/mxs-spi.txt18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/mxs-spi.txt b/Documentation/devicetree/bindings/spi/mxs-spi.txt
new file mode 100644
index 000000000000..c36296f5ad28
--- /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 0x2000>;
+ interrupts = <96 82>;
+ fsl,ssp-dma-channel = <0>;
+};