It's confusing to have different behaviour of target independent options. As reported by HcE on IRC.
@@ -126,8 +126,7 @@ config BR2_ROOTFS_PREFIX
config BR2_ROOTFS_SUFFIX
string "Custom root fs suffix"
- default "$(DATE)" if BR2_TARGET_ATMEL
- default "" if !BR2_TARGET_ATMEL
+ default ""
help
Add a custom string to the end of the root file system name.