[PATCH 0/3] nvmem: Add Nuvoton NPCM OTP driver
Kuan-Wei Chiu
visitorckw at gmail.com
Thu Mar 19 06:35:35 AEDT 2026
Add support for the OTP memory controllers found on Nuvoton NPCM7 SoCs.
This OTP is read-only and manages two independent arrays: Key Storage
and Fuse Array, which contain cryptographic keys, hardware strapping,
and calibration data. Each array provides 1024 bytes of storage.
You can use qemu-system-arm -M npcm750-evb to play around with it.
Kuan-Wei Chiu (3):
dt-bindings: nvmem: add nuvoton,npcm750-otp
nvmem: npcm-otp: Add Nuvoton NPCM OTP driver
ARM: dts: nuvoton: Add OTP nodes for NPCM7xx
.../bindings/nvmem/nuvoton,npcm750-otp.yaml | 35 +++++
MAINTAINERS | 7 +
.../dts/nuvoton/nuvoton-common-npcm7xx.dtsi | 10 ++
drivers/nvmem/Kconfig | 10 ++
drivers/nvmem/Makefile | 2 +
drivers/nvmem/npcm-otp.c | 129 ++++++++++++++++++
6 files changed, 193 insertions(+)
create mode 100644 Documentation/devicetree/bindings/nvmem/nuvoton,npcm750-otp.yaml
create mode 100644 drivers/nvmem/npcm-otp.c
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2.53.0.851.ga537e3e6e9-goog
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