[U-Boot] [RFC/RFT PATCH v3 3/3] image: Add compressed Image parsing support in booti.

Tom Rini trini at konsulko.com
Thu Nov 7 22:22:40 UTC 2019

On Wed, Nov 06, 2019 at 02:15:22PM -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.
> Tested on HiFive Unleashed and Qemu for RISC-V.
> Tested on Qemu for ARM64.
> Signed-off-by: Atish Patra <atish.patra at wdc.com>

Reviewed-by: Tom Rini <trini at konsulko.com>

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