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| author | Simon Glass <sjg@chromium.org> | 2021-01-06 21:35:11 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2021-01-30 14:25:41 -0700 |
| commit | 6deff872cf7ac25bf3d67066b57e7831cd560e5b (patch) | |
| tree | e176c0c2cbdf196d18632a4a0dbd0168ea7f55a8 | |
| parent | 9fc6ebd8feb4654483b544d12587857cf8938796 (diff) | |
| download | u-boot-6deff872cf7ac25bf3d67066b57e7831cd560e5b.tar.gz | |
patman: Correct lz4 compression parameters
At present on large files, lz4 uses a larger block size (e.g. 256KB) than
the 64KB supported by the U-Boot decompression implementation. Also it is
optimised for maximum compression speed, producing larger output than we
would like.
Update the parameters to correct these problems.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | tools/patman/tools.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/patman/tools.py b/tools/patman/tools.py index d8e01a3e60..10997e4386 100644 --- a/tools/patman/tools.py +++ b/tools/patman/tools.py @@ -476,7 +476,8 @@ def Compress(indata, algo, with_header=True): fname = GetOutputFilename('%s.comp.tmp' % algo) WriteFile(fname, indata) if algo == 'lz4': - data = Run('lz4', '--no-frame-crc', '-c', fname, binary=True) + data = Run('lz4', '--no-frame-crc', '-B4', '-5', '-c', fname, + binary=True) # cbfstool uses a very old version of lzma elif algo == 'lzma': outfname = GetOutputFilename('%s.comp.otmp' % algo) |