[PATCH 0/9] Support ELE API in i.MX OCOTP NVMEM driver

[Frieder Schrempf]

The imx-ocotp-ele.c driver currently uses the limited FSB (fuseblock)
to access the fuse registers. In order to gain full read/write access
to all fuses, we need to use the Edgelock Secure Enclave firmware.

This patchset does:

* Add bindings to reference ELE device in OCOTP driver (patch 1)
* Add ELE API functions for accessing the fuses (patch 3)
* Let the OCOTP driver use the ELE API (patch 6)
* Extend the devicetree of the Kontron boards for using the ELE API (patch 9)

The rest of the patches contain cleanups that were implemented along
the way.

This was tested using the 'crucible' tool and through hexdump on the
nvmem device.

---
Frieder Schrempf (9):
      dt-bindings: nvmem: imx-ocotp: Add support for secure-enclave
      firmware: imx: ele: Fix indentation in ele_base_msg.h
      firmware: imx: ele: Add API functions for OCOTP fuse access
      nvmem: imx-ocotp-ele: Add keepout table for i.MX93
      nvmem: imx-ocotp-ele: Remove device-specific reg_read()
      nvmem: imx-ocotp-ele: Support the ELE API
      nvmem: imx-ocotp-ele: Remove the FUSE_ELE type
      nvmem: imx-ocotp-ele: Rename FSB access map
      arm64: dts: imx93-kontron: Enable ELE firmware driver

 .../devicetree/bindings/nvmem/imx-ocotp.yaml       |   4 +
 .../boot/dts/freescale/imx93-kontron-osm-s.dtsi    |  26 ++++
 drivers/firmware/imx/ele_base_msg.c                | 122 ++++++++++++++++++
 drivers/firmware/imx/ele_base_msg.h                |  22 ++--
 drivers/nvmem/imx-ocotp-ele.c                      | 137 ++++++++++++++++-----
 include/linux/firmware/imx/se_api.h                |   3 +
 6 files changed, 277 insertions(+), 37 deletions(-)
---
base-commit: 49e02880ec0a8c378e811bc9d85da188d7c6204c
change-id: 20260616-upstreaming-next-20260609-imx-ocotp-ele-a512ddf96b03

Best regards,
--  
Frieder Schrempf <frieder.schrempf at kontron.de>