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| author | Julius Werner <jwerner@chromium.org> | 2015-10-06 20:03:53 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-10-11 17:12:10 -0400 |
| commit | 027b728d4aafb5cf97abc804944a77b837b0f07f (patch) | |
| tree | e7078c28ab243f5397584eba3aace01fbdd0d208 /common | |
| parent | b6b5e394db62ac17e496dce9e6e9451435c8be62 (diff) | |
| download | talos-obmc-uboot-027b728d4aafb5cf97abc804944a77b837b0f07f.tar.gz talos-obmc-uboot-027b728d4aafb5cf97abc804944a77b837b0f07f.zip | |
Add support for LZ4 decompression algorithm
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.
Sandbox-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>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/bootm.c | 9 | ||||
| -rw-r--r-- | common/image.c | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/common/bootm.c b/common/bootm.c index c0d0d09411..58936ca497 100644 --- a/common/bootm.c +++ b/common/bootm.c @@ -389,6 +389,15 @@ int bootm_decomp_image(int comp, ulong load, ulong image_start, int type, break; } #endif /* CONFIG_LZO */ +#ifdef CONFIG_LZ4 + case IH_COMP_LZ4: { + size_t size = unc_len; + + ret = ulz4fn(image_buf, image_len, load_buf, &size); + image_len = size; + break; + } +#endif /* CONFIG_LZ4 */ default: printf("Unimplemented compression type %d\n", comp); return BOOTM_ERR_UNIMPLEMENTED; diff --git a/common/image.c b/common/image.c index 1325e07953..c33749d51d 100644 --- a/common/image.c +++ b/common/image.c @@ -167,6 +167,7 @@ static const table_entry_t uimage_comp[] = { { IH_COMP_GZIP, "gzip", "gzip compressed", }, { IH_COMP_LZMA, "lzma", "lzma compressed", }, { IH_COMP_LZO, "lzo", "lzo compressed", }, + { IH_COMP_LZ4, "lz4", "lz4 compressed", }, { -1, "", "", }, }; |
