[PATCH 0/3] nvmem: Add Raspberry Pi OTP nvmem driver

Gregor Herburger
2026-04-08T08:00:30Z

Hi,

This series adds support for the Raspberry Pis OTP registers. The
Raspberry Pi has one or more OTP regions. These registers are accessible
through the firmware. Add a driver for it and add the corresponding
devicetree scheme.

I also added the devicetree nodes for the Raspberry Pi as I tested the
series on it.

---
Gregor Herburger (3):
dt-bindings: nvmem: Add a binding for the RPi Firmware OTP register
nvmem: Add the Raspberry Pi OTP driver
arm64: dts: broadcom: bcm2712: Add the otp nodes to firmware

.../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 18 +++
.../boot/dts/broadcom/bcm2712-rpi-5-b-base.dtsi | 8 ++
drivers/nvmem/Kconfig | 12 ++
drivers/nvmem/Makefile | 1 +
drivers/nvmem/raspberrypi-otp.c | 159 +++++++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 2 +
6 files changed, 200 insertions(+)
---
base-commit: f3e6330d7fe42b204af05a2dbc68b379e0ad179e
change-id: 20260408-rpi-otp-driver-75fce1dcff7d

Best regards,
--
Gregor Herburger <gregor.herburger@linutronix.de>