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authorMoritz Fischer2015-12-28 09:47:10 -0800
committerMichal Simek2016-04-13 18:29:07 +0200
commit17573c2791a76acd71fa82db513f31e965aa641b (patch)
tree3640738f1e7f98da788ed6a3d1940a7238077e0f /doc
parentff9bd8e9cadd4a8362684fabea6e6a0b4fed63a5 (diff)
i2c: Describe Cadence I2C devicetree bindings
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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+Cadence I2C controller Device Tree Bindings
+-------------------------------------------
+
+Required properties:
+- compatible : Should be "cdns,i2c-r1p10" or "xlnx,zynq-spi-r1p10".
+- reg : Physical base address and size of I2C registers map.
+- interrupts : Property with a value describing the interrupt
+ number.
+- interrupt-parent : Must be core interrupt controller
+- clocks : Clock phandles (see clock bindings for details).
+
+Example:
+ i2c0: i2c@e0004000 {
+ compatible = "cdns,i2c-r1p10";
+ reg = <0xe0004000 0x1000>;
+ clocks = <&clkc 38>;
+ interrupts = <0 25 4>;
+ interrupt-parent = <&intc>;
+ status = "disabled";
+ };