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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/fsi/aspeed,ast2400-cf-fsi-master.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ASpeed ColdFire offloaded GPIO-based FSI master
maintainers:
- Eddie James <eajames@linux.ibm.com>
allOf:
- $ref: /schemas/fsi/fsi-controller.yaml#
properties:
compatible:
enum:
- aspeed,ast2400-cf-fsi-master
- aspeed,ast2500-cf-fsi-master
clock-gpios:
maxItems: 1
description: GPIO for FSI clock
data-gpios:
maxItems: 1
description: GPIO for FSI data signal
enable-gpios:
maxItems: 1
description: GPIO for enable signal
trans-gpios:
maxItems: 1
description: GPIO for voltage translator enable
mux-gpios:
maxItems: 1
description:
GPIO for pin multiplexing with other functions (eg, external FSI masters)
memory-region:
maxItems: 1
description:
Reference to the reserved memory for the ColdFire. Must be 2M aligned on
AST2400 and 1M aligned on AST2500.
aspeed,cvic:
description: Reference to the CVIC node.
$ref: /schemas/types.yaml#/definitions/phandle
aspeed,sram:
description: Reference to the SRAM node.
$ref: /schemas/types.yaml#/definitions/phandle
required:
- compatible
- clock-gpios
- data-gpios
- enable-gpios
- trans-gpios
- mux-gpios
- memory-region
- aspeed,cvic
- aspeed,sram
unevaluatedProperties: false
examples:
- |
fsi-master {
compatible = "aspeed,ast2500-cf-fsi-master";
clock-gpios = <&gpio 0>;
data-gpios = <&gpio 1>;
enable-gpios = <&gpio 2>;
trans-gpios = <&gpio 3>;
mux-gpios = <&gpio 4>;
memory-region = <&coldfire_memory>;
aspeed,cvic = <&cvic>;
aspeed,sram = <&sram>;
};
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