This was already used by some SPL targets, and allows the pad amount to be specified by board config headers rather than only in makefile fragments.
Also supply a pad-to of zero if the variable is undefined. It works without this, but this avoids relying on undocumented behavior.
Signed-off-by: Scott Wood scottwood@freescale.com --- Makefile | 6 +++++- README | 4 ++++ board/ait/cam_enc_4xx/config.mk | 2 +- 3 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile index 2132ebf..090e3ff 100644 --- a/Makefile +++ b/Makefile @@ -485,8 +485,12 @@ $(obj)u-boot.sha1: $(obj)u-boot.bin $(obj)u-boot.dis: $(obj)u-boot $(OBJDUMP) -d $< > $@
+ + $(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin - $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin + $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(or $(CONFIG_SPL_PAD_TO),0) \ + -O binary $(obj)spl/u-boot-spl \ + $(obj)spl/u-boot-spl-pad.bin cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@ rm $(obj)spl/u-boot-spl-pad.bin
diff --git a/README b/README index ed7d270..3c3de4f 100644 --- a/README +++ b/README @@ -2784,6 +2784,10 @@ FIT uImage format: CONFIG_SPL_LIBGENERIC_SUPPORT Support for lib/libgeneric.o in SPL binary
+ CONFIG_SPL_PAD_TO + Linker address to which the SPL should be padded before + appending the SPL payload. + CONFIG_SPL_TARGET Final target image containing SPL and payload. Some SPLs use an arch-specific makefile fragment instead, for diff --git a/board/ait/cam_enc_4xx/config.mk b/board/ait/cam_enc_4xx/config.mk index 744b927..c280029 100644 --- a/board/ait/cam_enc_4xx/config.mk +++ b/board/ait/cam_enc_4xx/config.mk @@ -8,7 +8,7 @@ #
#Provide at least 16MB spacing between us and the Linux Kernel image -PAD_TO := 12320 +CONFIG_SPL_PAD_TO := 12320 UBL_CONFIG = $(SRCTREE)/board/$(BOARDDIR)/ublimage.cfg ifndef CONFIG_SPL_BUILD ALL-y += $(obj)u-boot.ubl