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1Device-tree bindings for ColdFire offloaded gpio-based FSI master driver2------------------------------------------------------------------------3 4Required properties:5 - compatible =6 "aspeed,ast2400-cf-fsi-master" for an AST2400 based system7 or8 "aspeed,ast2500-cf-fsi-master" for an AST2500 based system9 10 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock11 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal12 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal13 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable14 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other15 functions (eg, external FSI masters)16 - memory-region = <phandle>; : Reference to the reserved memory for17 the ColdFire. Must be 2M aligned on18 AST2400 and 1M aligned on AST250019 - aspeed,sram = <phandle>; : Reference to the SRAM node.20 - aspeed,cvic = <phandle>; : Reference to the CVIC node.21 22Examples:23 24 fsi-master {25 compatible = "aspeed,ast2500-cf-fsi-master", "fsi-master";26 27 clock-gpios = <&gpio 0>;28 data-gpios = <&gpio 1>;29 enable-gpios = <&gpio 2>;30 trans-gpios = <&gpio 3>;31 mux-gpios = <&gpio 4>;32 33 memory-region = <&coldfire_memory>;34 aspeed,sram = <&sram>;35 aspeed,cvic = <&cvic>;36 }37