From: Kuan-Wei Chiu <visitorckw@gmail.com>
To: andrew@codeconstruct.com.au, avifishman70@gmail.com,
tmaimon77@gmail.com, tali.perry1@gmail.com, srini@kernel.org,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org
Cc: venture@google.com, yuenn@google.com, benjaminfair@google.com,
jserv@ccns.ncku.edu.tw, eleanor15x@gmail.com,
linux-arm-kernel@lists.infradead.org, openbmc@lists.ozlabs.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Kuan-Wei Chiu <visitorckw@gmail.com>
Subject: [PATCH 0/3] nvmem: Add Nuvoton NPCM OTP driver
Date: Wed, 18 Mar 2026 19:35:35 +0000 [thread overview]
Message-ID: <20260318193538.246853-1-visitorckw@gmail.com> (raw)
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
--
2.53.0.851.ga537e3e6e9-goog
next reply other threads:[~2026-03-18 19:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-18 19:35 Kuan-Wei Chiu [this message]
2026-03-18 19:35 ` [PATCH 1/3] dt-bindings: nvmem: add nuvoton,npcm750-otp Kuan-Wei Chiu
2026-03-18 20:17 ` Krzysztof Kozlowski
2026-03-18 20:24 ` Kuan-Wei Chiu
2026-03-18 19:35 ` [PATCH 2/3] nvmem: npcm-otp: Add Nuvoton NPCM OTP driver Kuan-Wei Chiu
2026-03-19 10:57 ` Tomer Maimon
2026-03-19 16:17 ` Kuan-Wei Chiu
2026-03-18 19:35 ` [PATCH 3/3] ARM: dts: nuvoton: Add OTP nodes for NPCM7xx Kuan-Wei Chiu
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