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-rw-r--r--Makefile22
1 files changed, 22 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 3fd6d156c2..dbc4b709b6 100644
--- a/Makefile
+++ b/Makefile
@@ -183,6 +183,16 @@ endif
# load other configuration
include $(TOPDIR)/config.mk
+# Targets which don't build the source code
+NON_BUILD_TARGETS = backup clean clobber distclean mkproper tidy unconfig
+
+# Only do the generic board check when actually building, not configuring
+ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
+ifeq ($(findstring _config,$(MAKECMDGOALS)),)
+$(CHECK_GENERIC_BOARD)
+endif
+endif
+
# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
# that (or fail if absent). Otherwise, search for a linker script in a
# standard location.
@@ -554,6 +564,18 @@ endif
$(obj)u-boot-img.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
cat $(obj)spl/u-boot-spl.bin $(obj)u-boot.img > $@
+# PPC4xx needs the SPL at the end of the image, since the reset vector
+# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
+# and need to introduce a new build target with the full blown U-Boot
+# at the start padded up to the start of the SPL image. And then concat
+# the SPL image to the end.
+$(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
+ tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_UBOOT_PAD_TO) \
+ of=$(obj)u-boot-pad.img 2>/dev/null
+ dd if=$(obj)u-boot.img of=$(obj)u-boot-pad.img \
+ conv=notrunc 2>/dev/null
+ cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@
+
ifeq ($(CONFIG_SANDBOX),y)
GEN_UBOOT = \
cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
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