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+Board Support
+=============
+
+The board support for an architecture always starts with Qemu support,
+this is what each `linux_defconfig` at the very least sets up.  Then
+each `$BR2_ARCH` has additional BSPs, e.g., Banana Pi BPI-R3.
+
+The `board/` directory is matched with the `configs/*_defconfigs` and
+the only execption is `board/common/`, which holds all shared files for
+Infix builds.
+
+Each `board/$BR2_ARCH/` can then have vendor/product sub-directories
+for the BSPs which may contain "fixups" to the base kernel config and
+any additional device tree files that should be included as well.
+
+To rebuild a board-specific package, e.g. NanoPi R2S:
+
+    make friendlyarm-nanopi-r2s-rebuild all