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| author | David Woodhouse <dwmw2@infradead.org> | 2008-05-31 15:07:18 +0300 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-07-10 14:47:41 +0100 |
| commit | 8bd6b2229bf98761465020467ec33547d05bff46 (patch) | |
| tree | 7254aa39f6cede847ec67377f17cf58a04f02c7e /firmware/Makefile | |
| parent | f1485f3deb89e6ae10c4d34662ec9e692855ab5d (diff) | |
| download | lwn-8bd6b2229bf98761465020467ec33547d05bff46.tar.gz lwn-8bd6b2229bf98761465020467ec33547d05bff46.zip | |
ihex: add ihex2fw tool for converting HEX files into firmware images
Not the straight conversion to binary which objcopy can do for us, but
actually representing each record with its original {addr, length},
because some drivers need that information preserved.
Fix up 'firmware_install' to be able to build $(hostprogs-y) too.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'firmware/Makefile')
| -rw-r--r-- | firmware/Makefile | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/firmware/Makefile b/firmware/Makefile index 3742feeb066f..9e780a331e10 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -32,6 +32,9 @@ quiet_cmd_mkdir = MKDIR $(patsubst $(objtree)/%,%,$@) quiet_cmd_ihex = IHEX $@ cmd_ihex = $(OBJCOPY) -Iihex -Obinary $< $@ +quiet_cmd_ihex2fw = IHEX2FW $@ + cmd_ihex2fw = $(objtree)/$(obj)/ihex2fw $< $@ + quiet_cmd_fwbin = MK_FW $@ cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)"; \ FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst \ @@ -84,9 +87,18 @@ $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \ $(patsubst %,$(obj)/%.gen.o, $(fw-shipped-y)): %.gen.o: % $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/% +# .ihex is used just as a simple way to hold binary files in a source tree +# where binaries are frowned upon. They are directly converted with objcopy. $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %) $(call cmd,ihex) +# .HEX is also Intel HEX, but where the offset and length in each record +# is actually meaningful, because the firmware has to be loaded in a certain +# order rather than as a single binary blob. Thus, we convert them into our +# more compact binary representation of ihex records (<linux/ihex.h>) +$(obj)/%.fw: $(obj)/%.HEX $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %) + $(call cmd,ihex2fw) + $(firmware-dirs): $(call cmd,mkdir) @@ -101,3 +113,5 @@ targets := $(fw-shipped-) $(patsubst $(obj)/%,%, \ # Without this, built-in.o won't be created when it's empty, and the # final vmlinux link will fail. obj-n := dummy + +hostprogs-y := ihex2fw |