[PATCH v1 0/7] NVMEM: Introduce write protection support

Oleksij Rempel o.rempel at pengutronix.de
Fri May 30 04:40:59 PDT 2025


This series adds a generic protect op to NVMEM core, enabling
standardized write protection. This makes NVMEM behave more like other
flash interfaces (e.g., CFI block protection), which helps with common
tooling.

Oleksij Rempel (7):
  nvmem: Add 'protect' operation to core framework
  nvmem: rmem: add write and protect support
  commands: nvmem: Add support for creating dynamic rmem devices
  regmap: Add reg_seal operation for hardware protection
  nvmem: regmap: Implement protect operation using regmap_seal
  nvmem: bsec: Implement NVMEM protect via regmap_seal for OTP locking
  nvmem: rmem: Use unique device name for NVMEM registration

 commands/nvmem.c               | 124 +++++++++-
 drivers/base/regmap/internal.h |   2 +
 drivers/base/regmap/regmap.c   |  31 +++
 drivers/nvmem/bsec.c           |  27 ++
 drivers/nvmem/core.c           |  48 ++++
 drivers/nvmem/partition.c      |   7 +
 drivers/nvmem/regmap.c         |  65 +++++
 drivers/nvmem/rmem.c           | 438 ++++++++++++++++++++++++++++++++-
 include/linux/nvmem-provider.h |   5 +
 include/linux/regmap.h         |  33 +++
 include/mach/stm32mp/bsec.h    |   1 +
 11 files changed, 774 insertions(+), 7 deletions(-)

--
2.39.5




More information about the barebox mailing list