Hello all, Below is a part of arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi in linux kernel. This file is included by arch/arm64/boot/dts/arm/fvp-base-revc.dts. / { smb@8000000 { motherboard { arm,v2m-memory-map = "rs1"; compatible = "arm,vexpress,v2m-p1", "simple-bus"; #address-cells = <2>; /* SMB chipselect number and offset */ #size-cells = <1>; #interrupt-cells = <1>; ranges; flash@0,00000000 { compatible = "arm,vexpress-flash", "cfi-flash"; reg = <0 0x00000000 0x04000000>, <4 0x00000000 0x04000000>; bank-width = <4>; }; ethernet@2,02000000 { compatible = "smsc,lan91c111"; reg = <2 0x02000000 0x10000>; interrupts = <15>; }; When I compile the fvp-base-revc.dts file (following this method to handle pre-processing : https://stackoverflow.com/questions/50658326/device-tree-compiler-not-recognizes-c-syntax-for-include-files), it gives me error below. arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi:20.21-25.6: Warning (simple_bus_reg): /smb@8000000/motherboard/flash@0,00000000: simple-bus unit address format error, expected "0" arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi:27.24-31.6: Warning (simple_bus_reg): /smb@8000000/motherboard/ethernet@2,02000000: simple-bus unit address format error, expected "202000000" The dtc is complaining about the address format `flash@0,00000000` or `ethernet@2,02000000`. But because the #address-cells = <2>, the node address should be given by chip select number and the offset (inside the chip select). How can I prevent this error? DTC version is 1.5.0. Any help will be appreciated. Thank you! Chan Kim |
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