[U-Boot] [PATCH 2/9] Makefile: use "arm64" architecture for U-Boot image files

[Andre Przywara]

At the moment we use the arch/arm directory for arm64 boards as well,
so the Makefile will pick up the "arm" name for the architecture to use
for tagging binaries in U-Boot image files.
Differentiate between the two by looking at the CPU variable being defined
to "armv8", and use the arm64 architecture name on creating the image
file if that matches.

Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
 Makefile | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 75a5c7d171..d6e7c69f40 100644
--- a/Makefile
+++ b/Makefile
@@ -1167,13 +1167,19 @@ $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
 endif
 endif
 
+ifeq ($(CPU),armv8)
+IH_ARCH := arm64
+else
+IH_ARCH := $(ARCH)
+endif
+
 ifdef CONFIG_SPL_LOAD_FIT
-MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
+MKIMAGEFLAGS_u-boot.img = -f auto -A $(IH_ARCH) -T firmware -C none -O u-boot \
 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
 else
-MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
+MKIMAGEFLAGS_u-boot.img = -A $(IH_ARCH) -T firmware -C none -O u-boot \
 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
-- 
2.14.5