[U-Boot] [PATCH 0/9] spl: dm: Make it possible for the SPL to pick its own DTB from a FIT
Simon Glass
sjg at chromium.org
Thu Aug 3 15:27:23 UTC 2017
(correcting Tom's address)
Hi Jean-Jacques,
I see that I have made comments on v1 but now v2 has been sent. Sorry
I was so late.
Can you please take a look at the comments on v1?
- Simon
On 3 August 2017 at 09:25, Simon Glass <sjg at chromium.org> wrote:
> Hi Jean-Jacques,
>
> On 20 July 2017 at 11:02, Jean-Jacques Hiblot <jjhiblot at ti.com> wrote:
>> Following the RFC, here is the series implementing the mechanism in a cleaner
>> way. The idea is that the SPL may take advantage of selecting its DTB from a
>> pool of available DTBs. To do that several DTBs are embedded in a compressed
>> FIT image appended at the end of the SPL. The patch is done in such way that
>> this mechanism can easilly be extended to other ways of loading the DTBs.
>>
>> changes since RFC:
>> - split the RFC patch in several patches.
>> - leverage work from Cooper Jr., Franklin (CONFIG_FIT_EMBED) as a big part
>> of the code is similar. Rename CONFIG_FIT_EMBED as CONFIG_MULTI_DTB_FIT
>> to prevent confusion with CONFIG_OF_EMBED.
>> - use the default configuration if no match is provided by
>> board_fit_config_name_match(). note that this is generic not just for this
>> feature.
>> - provide an option to not use dynamic memory allocation.
>> - added a patch related to board detection on omap that's required to take
>> advantage of this feature.
>>
>>
>> Here are some numbers:
>> +----------------------------------------+
>> | Size |delta |boot-time| delta |
>> | (bytes) |(bytes) |(ms) | (ms) |
>> +---------------------------------------------------------------+
>> | reference | 120185 | | 1331 | |
>> +---------------------------------------------------------------+
>> | feature | | | | |
>> | deactiVated | 120185 | 0 | 1330 | -1 |
>> +---------------------------------------------------------------+
>> | 1 DTB LZO | 120208 | 2 | 1331 | 0 |
>> +---------------------------------------------------------------+
>> | 4 DTB LZO | 120810 | 625 | 1336 | 5 |
>> +---------------------------------------------------------------+
>> | 4 DTB LZO | | | | |
>> | no malloc | 120746 | 561 | 1343 | 12 |
>> +---------------------------------------------------------------+
>> | 4 DTB GZIP | 128552 | 8367 | 1353 | 22 |
>> +---------------------------------------------------------------+
>> | 4 DTB No comp | 132352 | 12167 | 1351 | 20 |
>> +----------------------+----------+----------+---------+--------+
>>
>
> Can this information and usage instructions (e.g. how to create the
> FIT with a .its example) go in a README somewhere please?
>
>>
>>
>> Jean-Jacques Hiblot (9):
>> dts: renamed FIT_EMBED to MULTI_DTB_FIT and moved it to the dts
>> Kconfig
>> fit: use 'const' for the input of fdt_offset() and locate_dtb_in_fit()
>> fit: fixed bug in locate_dtb_in_fit()
>> fit: If no matching config is found in fit_find_config_node(), use the
>> default one
>> lzo: add a function to check the validity of the header
>> gzip: add a function to parse the header
>> lib: allow building lzo and gunzip for the SPL
>> spl: dm: Make it possible for the SPL to pick its own DTB from a FIT
>> omap: detect board before spl_early_init()
>>
>> Makefile | 2 +-
>> arch/arm/mach-omap2/hwinit-common.c | 4 +-
>> board/ti/ks2_evm/board_k2e.c | 2 +-
>> board/ti/ks2_evm/board_k2g.c | 2 +-
>> board/ti/ks2_evm/board_k2hk.c | 2 +-
>> board/ti/ks2_evm/board_k2l.c | 2 +-
>> common/Kconfig | 16 -------
>> common/Makefile | 2 +-
>> common/boot_fit.c | 6 +--
>> common/common_fit.c | 20 ++++++++
>> configs/k2e_evm_defconfig | 2 +-
>> configs/k2g_evm_defconfig | 2 +-
>> configs/k2hk_evm_defconfig | 2 +-
>> configs/k2l_evm_defconfig | 2 +-
>> dts/Kconfig | 96 ++++++++++++++++++++++++++++++++++++-
>> include/boot_fit.h | 4 +-
>> include/common.h | 1 +
>> include/linux/lzo.h | 3 ++
>> lib/Kconfig | 11 +++++
>> lib/Makefile | 6 +--
>> lib/fdtdec.c | 85 ++++++++++++++++++++++++++++----
>> lib/gunzip.c | 15 ++++--
>> lib/lzo/lzo1x_decompress.c | 21 ++++++--
>> scripts/Makefile.spl | 35 +++++++++++++-
>> 24 files changed, 290 insertions(+), 53 deletions(-)
>>
>> --
>> 1.9.1
>>
>
> Regards,
> Simon
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