[PATCH 15/26 v6] Makefile: add support to generate LZMA compressed u-boot image

Stefan Roese
2020-04-08T08:09:31Z

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.

Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
Changes since v3: none

Makefile | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/Makefile b/Makefile
index 8de5ff6d94..9e01b70e4b 100644
--- a/Makefile
+++ b/Makefile
@@ -954,6 +954,9 @@ 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
@@ -1336,6 +1339,16 @@ 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) \
--
2.26.0