fdt: Makefile: Ensure that OF_BOARD is used when needed
Boards which define OF_HAS_PRIOR_STAGE must define OF_BOARD at present,
since a custom function is the only way to obtain the devicetree at
runtime.
Add a build error when this requirement is not met, to avoid accepting
any patches which break this requirement.
Add an allowlist for boards which use it, currently none. This allowlist
can be updated for local development, if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: change of_whitelist to of_allowlist]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/Makefile b/Makefile
index 633e038..a4f267c 100644
--- a/Makefile
+++ b/Makefile
@@ -1053,6 +1053,10 @@
cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
$(srctree)/scripts/config_whitelist.txt $(srctree)
+quiet_cmd_ofcheck = OFCHK $2
+cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
+ $(srctree)/scripts/of_allowlist.txt
+
# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
got = $(foreach cfg,$(1),$($(cfg)))
@@ -1127,6 +1131,9 @@
@# know about unless they are in Kconfig. All the existing CONFIG
@# options are whitelisted, so new ones should not be added.
$(call cmd,cfgcheck,u-boot.cfg)
+ @# Check that this build does not override OF_HAS_PRIOR_STAGE by
+ @# disabling OF_BOARD.
+ $(call cmd,ofcheck,$(KCONFIG_CONFIG))
PHONY += dtbs
dtbs: dts/dt.dtb