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Message-Id: <bc53c38fe100bd17b278dfb214eefea323a3ac4a.1470187592.git.dalias@libc.org>
Date: Tue, 17 May 2016 23:19:25 +0000
From: Rich Felker <dalias@...c.org>
To: linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-sh@...r.kernel.org
Cc: Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>
Subject: [PATCH v5 1/2] of: add J-Core SPI master bindings
Signed-off-by: Rich Felker <dalias@...c.org>
---
.../devicetree/bindings/spi/jcore,spi.txt | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/jcore,spi.txt
diff --git a/Documentation/devicetree/bindings/spi/jcore,spi.txt b/Documentation/devicetree/bindings/spi/jcore,spi.txt
new file mode 100644
index 0000000..93936d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/jcore,spi.txt
@@ -0,0 +1,34 @@
+J-Core SPI master
+
+Required properties:
+
+- compatible: Must be "jcore,spi2".
+
+- reg: Memory region for registers.
+
+- #address-cells: Must be 1.
+
+- #size-cells: Must be 0.
+
+Optional properties:
+
+- clocks: If a phandle named "ref_clk" is present, SPI clock speed
+ programming is relative to the frequency of the indicated clock.
+ Necessary only if the input clock rate is something other than a
+ fixed 50 MHz.
+
+- clock-names: Clock names, one for each phandle in clocks.
+
+See spi-bus.txt for additional properties not specific to this device.
+
+Example:
+
+spi@40 {
+ compatible = "jcore,spi2";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x40 0x8>;
+ spi-max-frequency = <25000000>;
+ clocks = <&bus_clk>;
+ clock-names = "ref_clk";
+}
--
2.8.1
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