misc: Add IHS FPGA driver

[oweals/u-boot.git] / Documentation / devicetree / bindings / misc / gdsys,iocpu_fpga.txt

diff --git a/Documentation/devicetree/bindings/misc/gdsys,iocpu_fpga.txt b/Documentation/devicetree/bindings/misc/gdsys,iocpu_fpga.txt
new file mode 100644 (file)
index 0000000..819db22
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+++ b/Documentation/devicetree/bindings/misc/gdsys,iocpu_fpga.txt
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+gdsys IHS FPGA for CPU devices
+
+The gdsys IHS FPGA is the main FPGA on gdsys CPU devices. This driver provides
+support for enabling and starting the FPGA, as well as verifying working bus
+communication.
+
+Required properties:
+- compatible: must be "gdsys,iocpu_fpga"
+- reset-gpios: List of GPIOs controlling the FPGA's reset
+- done-gpios: List of GPIOs notifying whether the FPGA's reconfiguration is
+              done
+
+Example:
+
+FPGA0 {
+       compatible = "gdsys,iocpu_fpga";
+       reset-gpios = <&PPCPCA 26 0>;
+       done-gpios = <&GPIO_VB0 19 0>;
+};