This patch adds support for generating LZMA compressed u-boot image. The compressed image can be used for SPL to reduce the size of the u-boot binary.

Signed-off-by: Weijie Gao weijie.gao@mediatek.com --- Makefile | 13 +++++++++++++ 1 file changed, 13 insertions(+)

diff --git a/Makefile b/Makefile index e20a206239..37bfc0e711 100644 --- a/Makefile +++ b/Makefile @@ -951,6 +951,9 @@ append = cat $(filter-out $< $(PHONY), $^) >> $@ quiet_cmd_pad_cat = CAT $@ cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@

+quiet_cmd_lzma = LZMA $@ +cmd_lzma = lzma -c -z -k -9 $< > $@ + cfg: u-boot.cfg

quiet_cmd_cfgcheck = CFGCHK $2 @@ -1332,6 +1335,16 @@ else UBOOT_BIN := u-boot.bin endif

+MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ + -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ + -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" + +u-boot.bin.lzma: u-boot.bin FORCE + $(call if_changed,lzma) + +u-boot-lzma.img: u-boot.bin.lzma FORCE + $(call if_changed,mkimage) + u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \