Available u-boot configuration variables in Apalis TK1 u-boot

Is there somewhere documented which configuration parameters can be used with u-boot from the Apalis TK1 Linux Image (BSP) v2.7b1+?

(Are the CONFIG_... parameters in u-boot/configs/apalis-tk1_defconfig which are commented out with # the only parameters which can be used in addition to the ones already configured to Y? Or are there other config values which are not commented out there?)

Is there somewhere documented which configuration parameters can be used with U-Boot from the Apalis TK1 Linux Image (BSP) v2.7b1+?

Please note that that beta BSP is no longer supported.

(Are the CONFIG_… parameters in u-boot/configs/apalis-tk1_defconfig which are commented out with # the only parameters which can be used in addition to the ones already configured to Y?

No, commenting out parameters in a defconfig serve a completely different purpose. This actually disables a certain feature which would otherwise be enabled by default.

Or are there other config values which are not commented out there?)

I don’t think there exist a concluding such list. But for such U-Boot specific questions you may be better off asking on the U-Boot mailing list. Be prepared to switch to using mainline U-Boot thought.