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-rw-r--r--Makefile17
-rw-r--r--config.mk4
2 files changed, 21 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 0197239..85e36ec 100644
--- a/Makefile
+++ b/Makefile
@@ -456,6 +456,22 @@ $(obj)u-boot.sb: $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
elftosb -zdf imx28 -c $(TOPDIR)/board/$(BOARDDIR)/u-boot.bd \
-o $(obj)u-boot.sb
+# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
+# Both images are created using mkimage (crc etc), so that the ROM
+# bootloader can check its integrity. Padding needs to be done to the
+# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
+# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
+# The resulting image containing both U-Boot images is called u-boot.spr
+$(obj)u-boot.spr: $(obj)u-boot.img $(obj)spl/u-boot-spl.bin
+ $(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
+ -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
+ -d $(obj)spl/u-boot-spl.bin $(obj)spl/u-boot-spl.img
+ tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_SPL_PAD_TO) \
+ of=$(obj)spl/u-boot-spl-pad.img 2>/dev/null
+ dd if=$(obj)spl/u-boot-spl.img of=$(obj)spl/u-boot-spl-pad.img \
+ conv=notrunc 2>/dev/null
+ cat $(obj)spl/u-boot-spl-pad.img $(obj)u-boot.img > $@
+
ifeq ($(CONFIG_SANDBOX),y)
GEN_UBOOT = \
cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
@@ -775,6 +791,7 @@ clobber: tidy
@rm -f $(obj)u-boot.ais
@rm -f $(obj)u-boot.dtb
@rm -f $(obj)u-boot.sb
+ @rm -f $(obj)u-boot.spr
@rm -f $(obj)tools/inca-swap-bytes
@rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c
@rm -f $(obj)arch/powerpc/cpu/mpc83xx/ddr-gen?.c
diff --git a/config.mk b/config.mk
index c239f23..3dcea6a 100644
--- a/config.mk
+++ b/config.mk
@@ -205,6 +205,10 @@ ifneq ($(CONFIG_SPL_TEXT_BASE),)
CPPFLAGS += -DCONFIG_SPL_TEXT_BASE=$(CONFIG_SPL_TEXT_BASE)
endif
+ifneq ($(CONFIG_SPL_PAD_TO),)
+CPPFLAGS += -DCONFIG_SPL_PAD_TO=$(CONFIG_SPL_PAD_TO)
+endif
+
ifeq ($(CONFIG_SPL_BUILD),y)
CPPFLAGS += -DCONFIG_SPL_BUILD
endif