[PATCH v3 0/5] i.mx: hab/ocotop: extend field return to i.MX6

[Fabian Pflug]

Field return handling was only implemented for the i.MX8* processors.
Extend this with support for i.MX6 and extend the hab command with an
option to burn the field return fuse in case the field return sticky bit
might be unlocked.

Signed-off-by: Fabian Pflug <f.pflug at pengutronix.de>
---
Changes in v3:
- Fix nitpick by Marco
- Added reviewed-by
- Fix broken mainline version of UID in CST. (Tested on i.MX6Q)
- Change wording for hab command help.
- Link to v2: https://lore.barebox.org/barebox/20251219-v2025-11-0-topic-imx6-field-return-v2-0-2696ac61ae2d@pengutronix.de

Changes in v2:
- Added reviewed-by
- Added imx6_hab_field_return_ocotp and reintroduced the
  imx8m_hab_field_return_ocotp, but also add a new helperfunction for
  both to call.
- Implemented Marcos changes for commands/hab.c, but changed
  indentation.
- Link to v1: https://lore.kernel.org/r/20251218-v2025-11-0-topic-imx6-field-return-v1-0-3781143198d6@pengutronix.de

---
Fabian Pflug (5):
      arm: mach-imx6: use kconfig for field return
      nvmem: ocotp: extend support to query the sticky bit
      i.MX: HAB: extend field_return support to imx6
      commands: hab: extend by field_return fuse burn
      i.MX: HAB: fix field return unlock fuse uid

 arch/arm/mach-imx/Kconfig                     | 35 +++++++++++++++------------
 commands/hab.c                                | 24 +++++++++++++++---
 drivers/hab/hab.c                             | 34 ++++++++++++++++----------
 drivers/nvmem/ocotp.c                         | 12 ++++++---
 include/mach/imx/habv4-imx6-gencsf-template.h | 11 +++------
 include/mach/imx/habv4-imx8-gencsf.h          |  2 +-
 include/mach/imx/ocotp-fusemap.h              |  1 +
 scripts/Makefile.lib                          |  2 +-
 8 files changed, 74 insertions(+), 47 deletions(-)
---
base-commit: d6f0974673c0e3da00f8d0789d6302a43f3e478d
change-id: 20251218-v2025-11-0-topic-imx6-field-return-d3b4f2e55afb

Best regards,
-- 
Fabian Pflug <f.pflug at pengutronix.de>