[RFT PATCH v5 3/3] image: Add compressed Image parsing support in booti.

Tom Rini trini at konsulko.com
Fri Mar 6 15:59:26 CET 2020


On Thu, Mar 05, 2020 at 04:24:23PM -0800, Atish Patra wrote:
> Add compressed Image parsing support so that booti can parse both
> flat and compressed Image to boot Linux. Currently, it is difficult
> to calculate a safe address for every board where the compressed
> image can be decompressed. It is also not possible to figure out the
> size of the compressed file as well. Thus, user need to set two
> additional environment variables kernel_comp_addr_r and filesize to
> make this work.
> 
> Following compression methods are supported for now.
> lzma, lzo, bzip2, gzip.
> 
> lz4 support is not added as ARM64 kernel generates a lz4 compressed
> image with legacy header which U-Boot doesn't know how to parse and
> decompress.

Is that a "legacy lz4 header" or something else?  Thanks!

-- 
Tom
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