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| author | James Hogan <james.hogan@imgtec.com> | 2013-08-30 19:42:42 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-09-03 20:00:01 +0400 |
| commit | 4defe4559e86e26545ab2f542656a4b966dcde53 (patch) | |
| tree | a07b97f8eb9488b6f059100e93f2857620bba214 /arch/mips/boot | |
| parent | 3185557d1acf8cc0c937b1343de83e2483bde28b (diff) | |
| download | linux-4defe4559e86e26545ab2f542656a4b966dcde53.tar.xz | |
MIPS: Add uImage build target
Add a uImage build target for MIPS, which builds uImage.gz (a U-Boot
image of vmlinux.bin.gz), and then symlinks it to uImage. This allows
for the use of other compression algorithms in future, and is how a few
other architectures do it.
It's enabled conditionally on load-y >= 0xffffffff80000000 which
hopefully allows 64bit kernels to also work as long as the load and
entry address can be represented by the 32bit addresses in the U-Boot
image format.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5795/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/boot')
| -rw-r--r-- | arch/mips/boot/.gitignore | 1 | ||||
| -rw-r--r-- | arch/mips/boot/Makefile | 15 |
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore index f210b09ececc..a73d6e2c4f64 100644 --- a/arch/mips/boot/.gitignore +++ b/arch/mips/boot/.gitignore @@ -4,3 +4,4 @@ vmlinux.* zImage zImage.tmp calc_vmlinuz_load_addr +uImage diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile index 851261e9fdc0..1466c0026093 100644 --- a/arch/mips/boot/Makefile +++ b/arch/mips/boot/Makefile @@ -40,3 +40,18 @@ quiet_cmd_srec = OBJCOPY $@ cmd_srec = $(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $@ $(obj)/vmlinux.srec: $(VMLINUX) FORCE $(call if_changed,srec) + +UIMAGE_LOADADDR = $(VMLINUX_LOAD_ADDRESS) +UIMAGE_ENTRYADDR = $(VMLINUX_ENTRY_ADDRESS) + +$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +targets += uImage.gz +$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE + $(call if_changed,uimage,gzip) + +targets += uImage +$(obj)/uImage: $(obj)/uImage.gz FORCE + @ln -sf $(notdir $<) $@ + @echo ' Image $@ is ready' |