[PATCH v4 0/3] fwu: Call EFI stack initialization after preboot

Michal Simek michal.simek at amd.com
Thu Apr 2 17:36:57 CEST 2026


Hi,

the whole series is trying to address issues we have on platforms where usb
and ufs init are not done before efi initialization. This is happening on
platforms where A/B update is enabled. FWU code is called early and do EFI
initialization before usb and ufs started that's why they are not visible.

We are workarounding it by starting usb/ufs from board file but this should
be more generic approach.

Thanks,
Michal

Changes in v4:
- update dm tests

Changes in v3:
- add missing type_name extension

Changes in v2:
- new patch in series
- check return value

Michal Simek (3):
  event: Check return value from event_notify_null()
  event: Introduce EVT_POST_PREBOOT event
  fwu: Move boottime checks to EVT_POST_PREBOOT

 common/board_r.c      | 6 +++++-
 common/event.c        | 3 +++
 common/main.c         | 4 ++++
 include/event.h       | 9 +++++++++
 lib/fwu_updates/fwu.c | 2 +-
 test/dm/fwu_mdata.c   | 4 ++--
 6 files changed, 24 insertions(+), 4 deletions(-)

-- 
2.43.0

base-commit: 0cdcef58834c0ad223952987d9bde449badeea31
branch: debian-sent3


More information about the U-Boot mailing list