[U-Boot] [PATCH 0/6] add zip command support for uboot
Lukasz Majewski
l.majewski at samsung.com
Thu Sep 6 10:18:41 CEST 2012
Dear Marek and Lei,
> Dear Lei Wen,
>
> > Hi Marek,
> >
> > On Thu, Sep 6, 2012 at 12:18 PM, Marek Vasut
> > <marek.vasut at gmail.com> wrote:
> > > Dear adrian.wenl at gmail.com,
> > >
> > >> From: Lei Wen <leiwen at marvell.com>
> > >
> > > Lei? Long time no see :)
> >
> > Long time no see. :)
>
> Yep, you're doing well?
>
> > >> This patch set add zip command support for uboot.
> > >> The first two patches import deflate and trees functions from
> > >> zlib 1.2.5 without any change. While the third patch did the
> > >> necessary change to make the import file could be built passed
> > >> in uboot environment.
> > >>
> > >> The fourth patch make us could zip the memory from 0 in the
> > >> address space.
> > >>
> > >> The latter fifth and sixth patch does the adding gzip lib
> > >> function exporting and zip command support.
> > >>
> > >> Patch set test with zip&unzip and compared with original memory
> > >> content.
> > >>
> > >> Lei Wen (6):
> > >> lib: zlib: import deflate source file from 1.2.5
> > >> lib: zlib: import trees file from 1.2.5
> > >> lib: zlib: include deflate into zlib build
> > >> lib: zlib: remove the limitation for cannot using 0 as start
> > >> lib: add gzip lib function callback
> > >> common: add zip command support
> > >>
> > >> common/Makefile | 1 +
> > >> common/cmd_zip.c | 60 ++
> > >> include/common.h | 7 +
> > >> include/u-boot/zlib.h | 40 +-
> > >> lib/Makefile | 1 +
> > >> lib/gzip.c | 143 ++++
> > >> lib/zlib/deflate.c | 1831
> > >>
> > >> +++++++++++++++++++++++++++++++++++++++++++++++++
> > >> lib/zlib/deflate.h | 342 +++++++++
> > >>
> > >> lib/zlib/trees.c | 1244 +++++++++++++++++++++++++++++++++
> > >> lib/zlib/trees.h | 128 ++++
> > >> lib/zlib/zlib.c | 8 +
> > >> lib/zlib/zutil.h | 4 +
> > >> 12 files changed, 3804 insertions(+), 5 deletions(-)
> > >> create mode 100644 common/cmd_zip.c
> > >> create mode 100644 lib/gzip.c
> > >> create mode 100644 lib/zlib/deflate.c
> > >> create mode 100644 lib/zlib/deflate.h
> > >> create mode 100644 lib/zlib/trees.c
> > >> create mode 100644 lib/zlib/trees.h
> > >
> > > Are there any users for this code? What is it for ?
> >
> > This patch was intended to compress the memory when uploading
> > through USB. So that uploaded image could be smaller.
> > Maybe there are some other usage, like memory testing?
>
> CCing Lukasz, maybe he can find some use for this in the DFU series?
>
I think, that there is a possibility to gzip the host DFU data and
uncompress it after USB transmission (especially when "zip" command is
available from command line).
> > > Best regards,
> > > Marek Vasut
> >
> > Thanks,
> > Lei
>
> Best regards,
> Marek Vasut
--
Best regards,
Lukasz Majewski
Samsung Poland R&D Center | Linux Platform Group
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