[RFC 0/2] A/B firmware update based in eMMC boot partition.

[Ying-Chun Liu]

From: "Ying-Chun Liu (PaulLiu)" <paul.liu at linaro.org>

Hi all,

I've implemented A/B firmware update based on eMMC hw partitions.
Normally we have 2 boot partitions on eMMC. One is active and another
is inactive. We can then flash the firmware to the inactive one and
make it active.

Also when booting we can write protect the current active one. And
left the inactive partition still writable.

So I make 2 commits that implements the following features:
1. Write protect "active" boot area when board init.
2. flash firmware to inactive boot area.
3. Change the inactive boot area after firmware update.

Thanks.

Ying-Chun Liu (PaulLiu) (2):
  drivers: mmc: write protect active boot area after mmc init.
  drivers: dfu: flash firmware to inactive boot area and active it

 drivers/dfu/dfu_mmc.c | 32 +++++++++++++++++++++---
 drivers/mmc/Kconfig   | 10 ++++++++
 drivers/mmc/mmc.c     | 58 +++++++++++++++++++++++++++++++++++++++++++
 include/dfu.h         |  1 +
 4 files changed, 98 insertions(+), 3 deletions(-)

-- 
2.34.1