[U-Boot] Difference between _defconfig and _config make switches

[Robert P. J. Day]

On Tue, 25 Jun 2019, Ahmad Ijaz wrote:

> Hi Sir,
>
> I am trying to understand u-boot source code. As a starting point, I
> compiled u-boot for beaglebone black and successfully executed it on
> beaglebone hardware.
> My question is related to compilation step.
>
> The u-boot can be compiled with the following switches on *make.*
>
> *1. am335x_beaglebone_defconfig*
> *2. am335x_beaglebone_config*
> *3. am335x_evm_defconfig*
> *4. am335x_evm_config*

  from scripts/kconfig/Makefile:

# Added for U-Boot (backward compatibility)
%_config: %_defconfig
        @:

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                         http://crashcourse.ca

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