1 files changed, 145 insertions, 0 deletions
diff --git a/roms/u-boot/scripts/Makefile.autoconf b/roms/u-boot/scripts/Makefile.autoconf
new file mode 100644
index 000000000..0bfc1b2a6
--- /dev/null
+++ b/roms/u-boot/scripts/Makefile.autoconf
@@ -0,0 +1,145 @@
+# SPDX-License-Identifier: GPL-2.0
+# This helper makefile is used for creating
+#  - symbolic links (arch/$ARCH/include/asm/arch
+#  - include/autoconf.mk, {spl,tpl}/include/autoconf.mk
+#  - include/config.h
+#
+# When our migration to Kconfig is done
+# (= When we move all CONFIGs from header files to Kconfig)
+# this makefile can be deleted.
+
+__all: include/autoconf.mk include/autoconf.mk.dep
+
+ifeq ($(shell grep -q '^CONFIG_SPL=y' include/config/auto.conf 2>/dev/null && echo y),y)
+__all: spl/include/autoconf.mk
+endif
+
+ifeq ($(shell grep -q '^CONFIG_TPL=y' include/config/auto.conf 2>/dev/null && echo y),y)
+__all: tpl/include/autoconf.mk
+endif
+
+include include/config/auto.conf
+
+include scripts/Kbuild.include
+
+# Need to define CC and CPP again here in case the top Makefile did not
+# include config.mk.  Some architectures expect CROSS_COMPILE to be defined
+# in arch/$(ARCH)/config.mk
+CC		= $(CROSS_COMPILE)gcc
+CPP		= $(CC) -E
+
+include config.mk
+
+UBOOTINCLUDE    := \
+		-Iinclude \
+		$(if $(KBUILD_SRC), -I$(srctree)/include) \
+		-I$(srctree)/arch/$(ARCH)/include \
+		-include $(srctree)/include/linux/kconfig.h
+
+c_flags := $(KBUILD_CFLAGS) $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) \
+					$(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
+
+quiet_cmd_autoconf_dep = GEN     $@
+      cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M -MP $(c_flags) \
+	-MQ include/config/auto.conf $(srctree)/include/common.h > $@ || {	\
+		rm $@; false;							\
+	}
+include/autoconf.mk.dep: include/config.h FORCE
+	$(call cmd,autoconf_dep)
+
+# We are migrating from board headers to Kconfig little by little.
+# In the interim, we use both of
+#  - include/config/auto.conf (generated by Kconfig)
+#  - include/autoconf.mk      (used in the U-Boot conventional configuration)
+# The following rule creates autoconf.mk
+# include/config/auto.conf is grepped in order to avoid duplication of the
+# same CONFIG macros
+quiet_cmd_autoconf = GEN     $@
+      cmd_autoconf = \
+		sed -n -f $(srctree)/tools/scripts/define2mk.sed $< |			\
+		while read line; do							\
+			if [ -n "${KCONFIG_IGNORE_DUPLICATES}" ] ||			\
+			   ! grep -q "$${line%=*}=" include/config/auto.conf; then	\
+				echo "$$line";						\
+			fi								\
+		done > $@
+
+quiet_cmd_u_boot_cfg = CFG     $@
+      cmd_u_boot_cfg = \
+	$(CPP) $(c_flags) $2 -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && { \
+		grep 'define CONFIG_' $@.tmp > $@;			\
+		rm $@.tmp;						\
+	} || {								\
+		rm $@.tmp; false;					\
+	}
+
+u-boot.cfg: include/config.h FORCE
+	$(call cmd,u_boot_cfg)
+
+spl/u-boot.cfg: include/config.h FORCE
+	$(Q)mkdir -p $(dir $@)
+	$(call cmd,u_boot_cfg,-DCONFIG_SPL_BUILD)
+
+tpl/u-boot.cfg: include/config.h FORCE
+	$(Q)mkdir -p $(dir $@)
+	$(call cmd,u_boot_cfg,-DCONFIG_SPL_BUILD -DCONFIG_TPL_BUILD)
+
+include/autoconf.mk: u-boot.cfg
+	$(call cmd,autoconf)
+
+spl/include/autoconf.mk: spl/u-boot.cfg
+	$(Q)mkdir -p $(dir $@)
+	$(call cmd,autoconf)
+
+tpl/include/autoconf.mk: tpl/u-boot.cfg
+	$(Q)mkdir -p $(dir $@)
+	$(call cmd,autoconf)
+
+# include/config.h
+# Prior to Kconfig, it was generated by mkconfig. Now it is created here.
+define filechk_config_h
+	(echo "/* Automatically generated - do not edit */";		\
+	for i in $$(echo $(CONFIG_SYS_EXTRA_OPTIONS) | sed 's/,/ /g'); do \
+		echo \#define CONFIG_$$i				\
+		| sed '/=/ {s/=/	/;q; } ; { s/$$/	1/; }'; \
+	done;								\
+	echo \#define CONFIG_BOARDDIR board/$(if $(VENDOR),$(VENDOR)/)$(BOARD);\
+	echo \#include \<config_uncmd_spl.h\>;				\
+	echo \#include \<configs/$(CONFIG_SYS_CONFIG_NAME).h\>;		\
+	echo \#include \<asm/config.h\>;				\
+	echo \#include \<linux/kconfig.h\>;				\
+	echo \#include \<config_fallbacks.h\>;)
+endef
+
+include/config.h: scripts/Makefile.autoconf create_symlink FORCE
+	$(call filechk,config_h)
+
+# symbolic links
+# If arch/$(ARCH)/mach-$(SOC)/include/mach exists,
+# make a symbolic link to that directory.
+# Otherwise, create a symbolic link to arch/$(ARCH)/include/asm/arch-$(SOC).
+PHONY += create_symlink
+create_symlink:
+ifdef CONFIG_CREATE_ARCH_SYMLINK
+ifneq ($(KBUILD_SRC),)
+	$(Q)mkdir -p include/asm
+	$(Q)if [ -d $(KBUILD_SRC)/arch/$(ARCH)/mach-$(SOC)/include/mach ]; then	\
+		dest=arch/$(ARCH)/mach-$(SOC)/include/mach;			\
+	else									\
+		dest=arch/$(ARCH)/include/asm/arch-$(if $(SOC),$(SOC),$(CPU));	\
+	fi;									\
+	ln -fsn $(KBUILD_SRC)/$$dest include/asm/arch
+else
+	$(Q)if [ -d arch/$(ARCH)/mach-$(SOC)/include/mach ]; then	\
+		dest=../../mach-$(SOC)/include/mach;			\
+	else								\
+		dest=arch-$(if $(SOC),$(SOC),$(CPU));			\
+	fi;								\
+	ln -fsn $$dest arch/$(ARCH)/include/asm/arch
+endif
+endif
+
+PHONY += FORCE
+FORCE:
+
+.PHONY: $(PHONY)