Makefile: Add possibility to set entry-point for u-boot.img
This patch enabled boards using the SPL framework to set
an entry point in the U-Boot mkimage image "u-boot.img".
Until now the entry point in the header has been set to 0.
By setting CONFIG_SYS_UBOOT_START in the board header, boards
can override this default location.
This will be used by the upcoming a3m071 MPC5200 board port.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/Makefile b/Makefile
index 19ac8f5..bf9a937 100644
--- a/Makefile
+++ b/Makefile
@@ -450,9 +450,18 @@
$(obj)u-boot.ldr.srec: $(obj)u-boot.ldr
$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
+#
+# U-Boot entry point, needed for booting of full-blown U-Boot
+# from the SPL U-Boot version.
+#
+ifndef CONFIG_SYS_UBOOT_START
+CONFIG_SYS_UBOOT_START := 0
+endif
+
$(obj)u-boot.img: $(obj)u-boot.bin
$(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
- -O u-boot -a $(CONFIG_SYS_TEXT_BASE) -e 0 \
+ -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
+ -e $(CONFIG_SYS_UBOOT_START) \
-n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \
-d $< $@