Add FU540-C000 specific device tree bindings to already
available i2-ocores file. This device is available on
HiFive Unleashed Rev A00 board.
Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@xxxxxxxxxx>
---
Documentation/devicetree/bindings/i2c/i2c-ocores.txt | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
index 17bef9a..f6bcf90 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
@@ -2,6 +2,7 @@ Device tree configuration for i2c-ocores
Required properties:
- compatible : "opencores,i2c-ocores" or "aeroflexgaisler,i2cmst"
+ "sifive,fu540-c000-i2c" or "sifive,i2c0"
- reg : bus address start and address range size of device
- interrupts : interrupt number
- clocks : handle to the controller clock; see the note below.
@@ -67,3 +68,22 @@ or
reg = <0x60>;
};
};
+or
+ /*
+ An Opencore based I2C node in FU540-C000 chip from SiFive
+ This chip has a hardware erratum for broken IRQ
+ so it's recommended not to define interrupt in the device node
+ */
+ i2c@10030000 {
+ compatible = "sifive,i2c0","sifive,fu540-c000-i2c";
+ reg = <0x0 0x10030000 0x0 0x1000>;
+ reg-names = "i2c-control";
+ clocks = <&tlclk>;
+ clock-frequency = <100000>;
+
+ reg-shift = <2>;
+ reg-io-width = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
--
1.9.1
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