Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / i2c / i2c-mv64xxx.txt

diff --git a/kernel/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt b/kernel/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
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+
+* Marvell MV64XXX I2C controller
+
+Required properties :
+
+ - reg             : Offset and length of the register set for the device
+ - compatible      : Should be either:
+                     - "allwinner,sun4i-a10-i2c"
+                     - "allwinner,sun6i-a31-i2c"
+                     - "marvell,mv64xxx-i2c"
+                     - "marvell,mv78230-i2c"
+                     - "marvell,mv78230-a0-i2c"
+                       * Note: Only use "marvell,mv78230-a0-i2c" for a
+                         very rare, initial version of the SoC which
+                         had broken offload support.  Linux
+                         auto-detects this and sets it appropriately.
+ - interrupts      : The interrupt number
+
+Optional properties :
+
+ - clock-frequency : Desired I2C bus clock frequency in Hz. If not set the
+default frequency is 100kHz
+
+ - resets          : phandle to the parent reset controller. Mandatory
+                     whenever you're using the "allwinner,sun6i-a31-i2c"
+                     compatible.
+
+Examples:
+
+       i2c@11000 {
+               compatible = "marvell,mv64xxx-i2c";
+               reg = <0x11000 0x20>;
+               interrupts = <29>;
+               clock-frequency = <100000>;
+       };
+
+For the Armada XP:
+
+       i2c@11000 {
+               compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
+               reg = <0x11000 0x100>;
+               interrupts = <29>;
+               clock-frequency = <100000>;
+       };