[U-Boot] [PATCH v9 23/30] imx: Add u-boot-with-spl.imx make target

[Benoît Thébaudeau]

This image combines the SPL with the i.MX header and U-Boot. This is a
convenient way of having a single image to program on some boot devices.

The i.MX header has to be added to the SPL before appending U-Boot, so that the
boot ROM loads only the SPL.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau at advansee.com>
---
Changes in v9: None
Changes in v8:
 - Use CONFIG_SPL_PAD_TO instead of CONFIG_SPL_MAX_SIZE for padding, which
   allows to pad the SPL after adding the i.MX header, which may save time when
   the boot ROM loads the SPL.
 - Add /u-boot-with-spl.imx to .gitignore.

Changes in v7:
 - New patch.

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 .gitignore                   |    1 +
 Makefile                     |    5 +++++
 arch/arm/imx-common/Makefile |    6 ++++++
 3 files changed, 12 insertions(+)

diff --git a/.gitignore b/.gitignore
index a803651..1d07fec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@
 /u-boot
 /u-boot.hex
 /u-boot.imx
+/u-boot-with-spl.imx
 /u-boot.map
 /u-boot.srec
 /u-boot.ldr
diff --git a/Makefile b/Makefile
index b1f0ff0..38f2ca5 100644
--- a/Makefile
+++ b/Makefile
@@ -484,6 +484,10 @@ $(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
 		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
 		rm $(obj)spl/u-boot-spl-pad.bin
 
+$(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
+		$(MAKE) -C $(SRCTREE)/arch/arm/imx-common \
+			$(OBJTREE)/u-boot-with-spl.imx
+
 $(obj)u-boot.ubl:       $(obj)u-boot-with-spl.bin
 		$(obj)tools/mkimage -n $(UBL_CONFIG) -T ublimage \
 		-e $(CONFIG_SYS_TEXT_BASE) -d $< $(obj)u-boot.ubl
@@ -855,6 +859,7 @@ clobber:	tidy
 	@rm -f $(obj)u-boot.kwb
 	@rm -f $(obj)u-boot.pbl
 	@rm -f $(obj)u-boot.imx
+	@rm -f $(obj)u-boot-with-spl.imx
 	@rm -f $(obj)u-boot.ubl
 	@rm -f $(obj)u-boot.ais
 	@rm -f $(obj)u-boot.dtb
diff --git a/arch/arm/imx-common/Makefile b/arch/arm/imx-common/Makefile
index 6309fcd..2ce182d 100644
--- a/arch/arm/imx-common/Makefile
+++ b/arch/arm/imx-common/Makefile
@@ -54,6 +54,12 @@ $(OBJTREE)/SPL: $(OBJTREE)/spl/u-boot-spl.bin $(OBJTREE)/$(patsubst "%",%,$(CONF
 	$(OBJTREE)/tools/mkimage -n $(filter-out %.bin,$^) -T imximage \
 	-e $(CONFIG_SPL_TEXT_BASE) -d $< $@
 
+$(OBJTREE)/u-boot-with-spl.imx: $(OBJTREE)/SPL $(OBJTREE)/u-boot.bin
+	$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO) \
+		-I binary -O binary $< $(OBJTREE)/spl/u-boot-spl-pad.imx
+	cat $(OBJTREE)/spl/u-boot-spl-pad.imx $(OBJTREE)/u-boot.bin > $@
+	rm $(OBJTREE)/spl/u-boot-spl-pad.imx
+
 
 #########################################################################
 
-- 
1.7.10.4