Hi Julius,
On 3 October 2015 at 06:32, Julius Werner jwerner@chromium.org wrote:
This patch adds support for LZ4-compressed FIT image contents. This algorithm has a slightly worse compression ration than LZO while being nearly twice as fast to decompress. When loading images from a fast storage medium this usually results in a boot time win.
Compile-tested only since I don't have a U-Boot development system set up right now. The code was imported unchanged from coreboot where it's proven to work, though. I'm mostly interested in getting this recognized by mkImage for use in a downstream project.
Signed-off-by: Julius Werner jwerner@chromium.org
common/bootm.c | 9 ++ common/image.c | 1 + include/common.h | 3 + include/image.h | 1 + lib/Kconfig | 18 ++++ lib/Makefile | 1 + lib/lz4.c | 243 +++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/lz4_wrapper.c | 137 ++++++++++++++++++++++++++++++ test/Kconfig | 1 + test/compression.c | 57 +++++++++++++ 10 files changed, 471 insertions(+) create mode 100644 lib/lz4.c create mode 100644 lib/lz4_wrapper.c
Actually you should enable the option in configs/sandbox_defconfig, not lib/Kconfig. See the condition used by compression.c:
obj-$(CONFIG_SANDBOX) += compression.o
Also, for me the test fails:
./b/sandbox/u-boot -c "ut_compression" ... testing lz4 ... orig_size:350 compressed_size:276 uncompressed_size:350 compress does not overrun Failed: ret != 0 lz4: FAILED ut_compression FAILED
Regards, Simon