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- Device-tree bindings for ColdFire offloaded gpio-based FSI master driver
- ------------------------------------------------------------------------
- Required properties:
- - compatible =
- "aspeed,ast2400-cf-fsi-master" for an AST2400 based system
- or
- "aspeed,ast2500-cf-fsi-master" for an AST2500 based system
- - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
- - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
- - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
- - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
- - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
- functions (eg, external FSI masters)
- - memory-region = <phandle>; : Reference to the reserved memory for
- the ColdFire. Must be 2M aligned on
- AST2400 and 1M aligned on AST2500
- - aspeed,sram = <phandle>; : Reference to the SRAM node.
- - aspeed,cvic = <phandle>; : Reference to the CVIC node.
- Examples:
- fsi-master {
- compatible = "aspeed,ast2500-cf-fsi-master", "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,sram = <&sram>;
- aspeed,cvic = <&cvic>;
- }
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