[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
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