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-rw-r--r--target/linux/ramips/patches-3.14/0049-DT-Add-documentation-for-spi-rt2880.patch50
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diff --git a/target/linux/ramips/patches-3.14/0049-DT-Add-documentation-for-spi-rt2880.patch b/target/linux/ramips/patches-3.14/0049-DT-Add-documentation-for-spi-rt2880.patch
new file mode 100644
index 0000000000..902334e0fa
--- /dev/null
+++ b/target/linux/ramips/patches-3.14/0049-DT-Add-documentation-for-spi-rt2880.patch
@@ -0,0 +1,50 @@
+From 6ed8d03e5f4283b60dffea5c10ff1484141824e7 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Fri, 9 Aug 2013 20:12:59 +0200
+Subject: [PATCH 49/57] DT: Add documentation for spi-rt2880
+
+Describe the SPI master found on the MIPS based Ralink RT2880 SoC.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ .../devicetree/bindings/spi/spi-rt2880.txt | 28 ++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/spi/spi-rt2880.txt
+
+diff --git a/Documentation/devicetree/bindings/spi/spi-rt2880.txt b/Documentation/devicetree/bindings/spi/spi-rt2880.txt
+new file mode 100644
+index 0000000..068bc90
+--- /dev/null
++++ b/Documentation/devicetree/bindings/spi/spi-rt2880.txt
+@@ -0,0 +1,28 @@
++Ralink SoC RT2880 SPI master controller.
++
++This SPI controller is found on most wireless SoCs made by ralink.
++
++Required properties:
++- compatible : "ralink,rt2880-spi"
++- reg : The register base for the controller.
++- #address-cells : <1>, as required by generic SPI binding.
++- #size-cells : <0>, also as required by generic SPI binding.
++
++Child nodes as per the generic SPI binding.
++
++Example:
++
++ spi@b00 {
++ compatible = "ralink,rt2880-spi";
++ reg = <0xb00 0x100>;
++
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ m25p80@0 {
++ compatible = "m25p80";
++ reg = <0>;
++ spi-max-frequency = <10000000>;
++ };
++ };
++
+--
+1.7.10.4
+