[U-Boot] [PATCH v4 00/18] Support for eMMC partitioning and related fixes

Pantelis Antoniou panto at antoniou-consulting.com
Mon Jan 19 16:44:04 CET 2015


Hi Diego,

> On Dec 23, 2014, at 11:50 , Diego Santa Cruz <Diego.SantaCruz at spinetix.com> wrote:
> 
> I have the need to hardware partition eMMC devices from U-Boot along
> with setting enhanced and reliable write attributes.
> 
> This series of patches adds this support to U-Boot via a new mmc
> API, a few new members of struct mmc and a new mmc sub-command. It
> also features several fixes to the eMMC hardware partition support. I
> have tested this with Micron eMMC 4.41 parts and it is working as
> expected.
> 
> This version resyncs to u-boot.git master
> d8bec60c1b0de7770f9b56ad092ab9be801d99af as some recent mmc changes
> conflicted with these patches, in particular the DDR mode support.
> 
> Diego Santa Cruz (18):
>  mmc: show hardware partition sizes in mmcinfo output
>  mmc: extend mmcinfo to show enhanced partition attribute
>  mmc: make eMMC general purpose partition numbering match spec
>  mmc: skip mmcinfo partition info processing for eMMC < 4.41
>  mmc: incomplete test to switch to high-capacity group size definitions
>  mmc: computation of eMMC GP partition size was missing 512 KiB factor
>  mmc: read the size of eMMC enhanced user data area
>  mmc: display size and start of eMMC enhanced user data area in mmcinfo
>  mmc: fix erase_grp_size computation with high-capacity size definition
>  mmc: read the high capacity WP group size for eMMC
>  mmc: show the erase group size and HC WP group size in mmcinfo output
>  mmc: eMMC partitioning data is not effective till partitioning
>    completed
>  mmc: the ext_csd data may be used during init even if reading failed
>  mmc: add API to do eMMC hardware partitioning
>  mmc: add mmc hwpartition sub-command to do eMMC hardware partitioning
>  mmc: extend the mmc hardware partitioning API with write reliability
>  mmc: extend the mmc hwpartition sub-command to change write
>    reliability
>  mmc: extend mmcinfo output to show partition write reliability
>    settings
> 
> common/cmd_mmc.c  | 207 ++++++++++++++++++++++++++++++++++++++-
> drivers/mmc/mmc.c | 288 +++++++++++++++++++++++++++++++++++++++++++++++++-----
> include/mmc.h     |  45 ++++++++-
> 3 files changed, 515 insertions(+), 25 deletions(-)
> 
> -- 
> 2.2.1
> 

Applied, with minor cosmetic edits.

I can’t test every feature of this patchset, but I guess if something’s broken
we’ll find out soon enough.

Regards

— Pantelis



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