microblaze: Support simpleImage.dts make target
Instead of remembering to specify DTB= on the make commandline, this commit
allows the much friendlier make simpleImage.<dts>
where <dts>.dts is expected to be found in arch/microblaze/boot/dts/
The resulting vmlinux, with the compiled DTS linked in, will be copied to
boot/simpleImage.<dts>
This mirrors the same functionality as on PowerPC,
albeit achieving it in a slightly different way.
+ strip simpleImage file
The size of output file is very similar to linux.bin.
vmlinux - full elf without fdt blob
simpleImage.<dtb name>.unstrip - full elf with fdt blob
simpleImage.<dtb name> - stripped elf with fdt blob
Add symlink to generic system.dts in platform folder
Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 737a4dc..3418735 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -53,22 +53,41 @@
boot := arch/microblaze/boot
+# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
+DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
+
+ifneq ($(DTB),)
+ core-y += $(boot)/
+endif
+
# defines filename extension depending memory management type
ifeq ($(CONFIG_MMU),)
MMU := -nommu
endif
-export MMU
+export MMU DTB
all: linux.bin
+BOOT_TARGETS = linux.bin linux.bin.gz simpleImage.%
+
archclean:
$(Q)$(MAKE) $(clean)=$(boot)
-linux.bin linux.bin.gz: vmlinux
+$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
define archhelp
- echo '* linux.bin - Create raw binary'
- echo ' linux.bin.gz - Create compressed raw binary'
+ echo '* linux.bin - Create raw binary'
+ echo ' linux.bin.gz - Create compressed raw binary'
+ echo ' simpleImage.<dt> - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
+ echo ' - stripped elf with fdt blob
+ echo ' simpleImage.<dt>.unstrip - full ELF image with fdt blob'
+ echo ' *_defconfig - Select default config from arch/microblaze/configs'
+ echo ''
+ echo ' Targets with <dt> embed a device tree blob inside the image'
+ echo ' These targets support board with firmware that does not'
+ echo ' support passing a device tree directly. Replace <dt> with the'
+ echo ' name of a dts file from the arch/microblaze/boot/dts/ directory'
+ echo ' (minus the .dts extension).'
endef