[U-Boot] [PATCH v3 1/2] Makefile: Add target to generate hex output for combined spl and dtb

[Dalon Westergreen]

From: Dalon Westergreen <dalon.westergreen at intel.com>

Stratix10 requires a hex image of the spl plus spl devicetree offset to
the Stratix10 onchip memory located at SPL_TEXT_BASE.  This patch adds
a target to generate a hex file from the u-boot-spl binary including the
dtb offset at SPL_TEST_BASE.

Objcopy is used to convert the $(SPL_BIN).bin, which includes the spl
dtb, to a hex file.  the --change-address option is used to offset the
hex to SPL_TEXT_BASE as objcopy on the spl binary will not result in
a hex file appropriately offset at SPL_TEXT_BASE.

Signed-off-by: Dalon Westergreen <dalon.westergreen at intel.com>

---
Changes in v3:
 -> Cleanup commit message and better describe the problem being
    resolved
 -> Remove extraneous hunk
 -> use SPL_BIN instead of u-boot-spl
Changes in v2:
 -> Move spl hex file generation to SPL Makefile
 -> Create hexfile from $(SPL_BIN).bin which will include the dtb
    ifneq(build_dtb,)
---
 Makefile             | 9 ++++-----
 scripts/Makefile.spl | 7 +++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 07106138e9..12e36ebb72 100644
--- a/Makefile
+++ b/Makefile
@@ -1124,11 +1124,6 @@ OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
 		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
 		$(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
 
-OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
-
-spl/u-boot-spl.hex: spl/u-boot-spl FORCE
-	$(call if_changed,objcopy)
-
 binary_size_check: u-boot-nodtb.bin FORCE
 	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
 	map_size=$(shell cat u-boot.map | \
@@ -1707,6 +1702,10 @@ u-boot.lds: $(LDSCRIPT) prepare FORCE
 
 spl/u-boot-spl.bin: spl/u-boot-spl
 	@:
+
+spl/u-boot-spl.hex: spl/u-boot-spl
+	@:
+
 spl/u-boot-spl: tools prepare \
 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index 7af6b120b6..551002194e 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -216,6 +216,8 @@ ifneq ($(CONFIG_TARGET_SOCFPGA_GEN5)$(CONFIG_TARGET_SOCFPGA_ARRIA10),)
 ALL-y	+= $(obj)/$(SPL_BIN).sfp
 endif
 
+ALL-$(CONFIG_TARGET_SOCFPGA_STRATIX10) += $(obj)/$(SPL_BIN).hex
+
 ifdef CONFIG_ARCH_SUNXI
 ALL-y	+= $(obj)/sunxi-spl.bin
 
@@ -363,6 +365,11 @@ endif
 $(obj)/$(SPL_BIN).sfp: $(obj)/$(SPL_BIN).bin FORCE
 	$(call if_changed,mkimage)
 
+OBJCOPYFLAGS_$(SPL_BIN).hex := -I binary -O ihex --change-address=$(CONFIG_SPL_TEXT_BASE)
+
+$(obj)/$(SPL_BIN).hex: $(obj)/$(SPL_BIN).bin FORCE
+	$(call if_changed,objcopy)
+
 quiet_cmd_mksunxiboot = MKSUNXI $@
 cmd_mksunxiboot = $(objtree)/tools/mksunxiboot \
 			--default-dt $(CONFIG_DEFAULT_DEVICE_TREE) $< $@
-- 
2.21.0