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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fpga/lattice,ice40-fpga-mgr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lattice iCE40 FPGA Manager
+
+maintainers:
+ - Joel Holdsworth <joel@airwebreathe.org.uk>
+
+properties:
+ compatible:
+ const: lattice,ice40-fpga-mgr
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ minimum: 1000000
+ maximum: 25000000
+
+ cdone-gpios:
+ maxItems: 1
+ description: GPIO input connected to CDONE pin
+
+ reset-gpios:
+ maxItems: 1
+ description:
+ Active-low GPIO output connected to CRESET_B pin. Note that unless the
+ GPIO is held low during startup, the FPGA will enter Master SPI mode and
+ drive SCK with a clock signal potentially jamming other devices on the bus
+ until the firmware is loaded.
+
+required:
+ - compatible
+ - reg
+ - spi-max-frequency
+ - cdone-gpios
+ - reset-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fpga@0 {
+ compatible = "lattice,ice40-fpga-mgr";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ cdone-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+ };
+ };