[1/2] dt-bindings: soc: fsl: Document Qixis FPGA usage

Commit Message

Pankaj Bansal Oct. 5, 2018, 8:55 a.m. UTC

an FPGA-based system controller, called “Qixis”, which
manages several critical system features, including:
• Reset sequencing
• Power supply configuration
• Board configuration
• hardware configuration

The qixis registers are accessible over one or more system-specific
interfaces, typically I2C, JTAG or an embedded processor.

Signed-off-by: Pankaj Bansal <[e-mail]>
---
 .../bindings/soc/fsl/qixis_ctrl.txt          | 33 ++++++++++++++++++
 1 file changed, 33 insertions(+)

Patch

diff --git a/Documentation/devicetree/bindings/soc/fsl/qixis_ctrl.txt b/Documentation/devicetree/bindings/soc/fsl/qixis_ctrl.txt
new file mode 100644
index 000000000000..bc2950cab71d
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/qixis_ctrl.txt
@@ -0,0 +1,33 @@ 
+* QIXIS FPGA block
+
+an FPGA-based system controller, called “Qixis”, which
+manages several critical system features, including:
+• Configuration switch monitoring
+• Power on/off sequencing
+• Reset sequencing
+• Power supply configuration
+• Board configuration
+• hardware configuration
+• Background power data collection (DCM)
+• Fault monitoring
+• RCW bypass SRAM (replace flash RCW with internal RCW) (NOR only)
+• Dedicated functional validation blocks (POSt/IRS, triggered event, and so on)
+• I2C master for remote board control even with no DUT available
+
+The qixis registers are accessible over one or more system-specific interfaces,
+typically I2C, JTAG or an embedded processor.
+
+Required properties:
+
+ - compatible : string, must contain "fsl,fpga-qixis-i2c"
+ - reg : i2c address of the qixis device.
+
+Examples:
+	/* The FPGA node */
+        fpga@66 {
+		compatible = "fsl,lx2160aqds-fpga", "fsl,fpga-qixis-i2c";
+		reg = <0x66>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	}
+