Everyone:
This series adds code needed to expose U-Boot environemnt variable
data partition as a regular filesystem in Barebox. It currently only
supports the use-case where environment is stored on SD/MMC device,
since that is the only use-case I have access to for testing, however
adding support for other cases should be relatively
straightforward.
Feedback is welcome!
Changes since [v1]:
- ubootvar changed to not rely on struct resource
*/mem_write/mem_read etc. and use a private pointer instead
- ubootvar changed to handle the case of no valid environment data
by allocation parition 0 as empty/new
- Added documentation for ubootvarfs as well as ubootvar DT
bindings
Thanks,
Andrey Smirnov
[v1] http://lists.infradead.org/pipermail/barebox/2019-May/038223.html
Andrey Smirnov (6):
filetype: Add "U-Boot environmemnt variable data" filetype
filetype: Allow specifying cdev's filetype explicitly
drivers: Introduce late_platform_driver()
misc: Add a driver to expose U-Boot environment variable data
fs: Add a driver to access U-Boot environment variables
ARM: rdu2: Add U-Boot environment partitions
Cory Tusar (1):
ARM: rdu1: Add U-Boot environment partition
.../barebox/barebox,uboot-environment.rst | 43 ++
Documentation/filesystems/ubootvarfs.rst | 28 +
arch/arm/dts/imx51-zii-rdu1.dts | 21 +
arch/arm/dts/imx6qdl-zii-rdu2.dtsi | 27 +
common/filetype.c | 8 +
drivers/misc/Kconfig | 12 +
drivers/misc/Makefile | 1 +
drivers/misc/ubootvar.c | 360 +++++++++++++
fs/Kconfig | 8 +
fs/Makefile | 1 +
fs/ubootvarfs.c | 499 ++++++++++++++++++
include/driver.h | 4 +
include/filetype.h | 1 +
13 files changed, 1013 insertions(+)
create mode 100644
Documentation/devicetree/bindings/barebox/barebox,uboot-environment.rst
create mode 100644 Documentation/filesystems/ubootvarfs.rst
create mode 100644 drivers/misc/ubootvar.c
create mode 100644 fs/ubootvarfs.c
--
2.21.0
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