1Device-tree bindings for ColdFire offloaded gpio-based FSI master driver 2------------------------------------------------------------------------ 3 4Required properties: 5 - compatible = 6 "aspeed,ast2400-cf-fsi-master" for an AST2400 based system 7 or 8 "aspeed,ast2500-cf-fsi-master" for an AST2500 based system 9 10 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock 11 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal 12 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal 13 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable 14 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other 15 functions (eg, external FSI masters) 16 - memory-region = <phandle>; : Reference to the reserved memory for 17 the ColdFire. Must be 2M aligned on 18 AST2400 and 1M aligned on AST2500 19 - 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