How to build Ltib with hard float

[zhenghuyu]

when I build ltib with setting -mfloat-abi=hard  in config, I get the error msg: -mfloat-abi=soft and -mfloat-abi=hard may not be used together.

so how to build ltib with hard float

[igorpadykov]

Hi zhenghu

one can follow attached document from ltib note i.MX has not fpu, only neon.

Best regards
igor
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[zhenghuyu]

I can not find where the flag  -mfloat-abi=soft has been set。I only set the c compile flag   -mfloat-abi=hard

and the u-boot builds successfully  but the kernel doesn't and show the error message

[igorpadykov]

may be useful to check

https://wiki.linaro.org/Linaro-arm-hardfloat
https://community.nxp.com/docs/DOC-95185

~igor

[zhenghuyu]

Can you give me some more detail instrutions?