summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt')
-rw-r--r--Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt46
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
new file mode 100644
index 000000000..d12cc33cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/brcm,iproc-i2c.txt
@@ -0,0 +1,46 @@
+Broadcom iProc I2C controller
+
+Required properties:
+
+- compatible:
+ Must be "brcm,iproc-i2c" or "brcm,iproc-nic-i2c"
+
+- reg:
+ Define the base and range of the I/O address space that contain the iProc
+ I2C controller registers
+
+- clock-frequency:
+ This is the I2C bus clock. Need to be either 100000 or 400000
+
+- #address-cells:
+ Always 1 (for I2C addresses)
+
+- #size-cells:
+ Always 0
+
+Optional properties:
+
+- interrupts:
+ Should contain the I2C interrupt. For certain revisions of the I2C
+ controller, I2C interrupt is unwired to the interrupt controller. In such
+ case, this property should be left unspecified, and driver will fall back
+ to polling mode
+
+- brcm,ape-hsls-addr-mask:
+ Required for "brcm,iproc-nic-i2c". Host view of address mask into the
+ 'APE' co-processor. Value must be unsigned, 32-bit
+
+Example:
+ i2c0: i2c@18008000 {
+ compatible = "brcm,iproc-i2c";
+ reg = <0x18008000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_NONE>;
+ clock-frequency = <100000>;
+
+ codec: wm8750@1a {
+ compatible = "wlf,wm8750";
+ reg = <0x1a>;
+ };
+ };