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36 lines
1.3 KiB
36 lines
1.3 KiB
Device-tree bindings for ColdFire offloaded gpio-based FSI master driver |
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------------------------------------------------------------------------ |
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Required properties: |
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- compatible = |
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"aspeed,ast2400-cf-fsi-master" for an AST2400 based system |
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or |
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"aspeed,ast2500-cf-fsi-master" for an AST2500 based system |
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- clock-gpios = <gpio-descriptor>; : GPIO for FSI clock |
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- data-gpios = <gpio-descriptor>; : GPIO for FSI data signal |
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- enable-gpios = <gpio-descriptor>; : GPIO for enable signal |
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- trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable |
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- mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other |
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functions (eg, external FSI masters) |
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- memory-region = <phandle>; : Reference to the reserved memory for |
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the ColdFire. Must be 2M aligned on |
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AST2400 and 1M aligned on AST2500 |
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- aspeed,sram = <phandle>; : Reference to the SRAM node. |
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- aspeed,cvic = <phandle>; : Reference to the CVIC node. |
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Examples: |
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fsi-master { |
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compatible = "aspeed,ast2500-cf-fsi-master", "fsi-master"; |
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clock-gpios = <&gpio 0>; |
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data-gpios = <&gpio 1>; |
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enable-gpios = <&gpio 2>; |
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trans-gpios = <&gpio 3>; |
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mux-gpios = <&gpio 4>; |
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memory-region = <&coldfire_memory>; |
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aspeed,sram = <&sram>; |
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aspeed,cvic = <&cvic>; |
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}
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