Dear simon polette,

In message 72795ccb0904290301h1678e99br6fe3cfb0b4226d66@mail.gmail.com you wrote:

Is existing a way to globally disable some features such as ethernet or Nand support, instead of doing it for a specific board?

No, you cannot do this globally. Board configuration is always board specific.

More over, I can't disable ethernet on the at91sam9261ek board by simply disable the #define CONFIG_DRIVER_DM9000 in the 'config/at91sam9261ek.h' file so it cause building errors.

That's to be expected. When you just disable the network driver with- out disabling support foir the network commands, the linker will run into unresolved external references to the network driver functions. You must also disable network commands support.

Best regards,

Wolfgang Denk