[NXP,ELE-MUAP,Driver,0/7] *** firmware: imx: NXP Edgelock Enclave MUAP Driver ***

Message

Pankaj Gupta April 11, 2023, 4:25 p.m. UTC

The Messaging Unit module enables two processing elements within the SoC to
communicate and coordinate by passing messages (e.g., data, status and control)
through its interfaces.

The NXP i.MX EdgeLock Enclave Message Unit (ELE-MUAP) is specifically targeted
for use between application core and Edgelocke Enclave. It allows to send
messages to the EL Enclave using a shared mailbox.

Patch-set add the ELE-MU  kernel driver for exchanging messages with i.MX NXP
ELE IP; both from:
- User-Space Applications via character driver.
- Kernel-space, used by kernel management layers like DM-Crypt.

Pankaj Gupta (7):
  doc: device tree binding addition for ele MU
  arm64: dts: imx93-11x11-evk: added ele-mu
  arm64: dts: imx93-11x11-evk: reserved mem-ranges to constrain ele-mu
    dma-range
  arm64: dts: imx8ulp-evk: added ele-mu
  arm64: dts: imx8ulp-evk: reserved mem-ranges to constrain ele-mu
    dma-range
  firmware: imx: add ELE MU driver support
  MAINTAINERS: Added maintainer details

 .../bindings/arm/freescale/fsl,ele_mu.yaml    |   90 ++
 .../devicetree/bindings/mailbox/fsl,muap.txt  |   89 ++
 MAINTAINERS                                   |    7 +
 arch/arm64/boot/dts/freescale/imx8ulp-evk.dts |   15 +
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi    |   13 +-
 .../boot/dts/freescale/imx93-11x11-evk.dts    |   15 +
 arch/arm64/boot/dts/freescale/imx93.dtsi      |   11 +-
 drivers/firmware/imx/Kconfig                  |   11 +
 drivers/firmware/imx/Makefile                 |    2 +
 drivers/firmware/imx/ele_base_msg.c           |  377 +++++
 drivers/firmware/imx/ele_mu.c                 | 1284 +++++++++++++++++
 drivers/firmware/imx/ele_mu.h                 |  174 +++
 include/linux/firmware/imx/ele_base_msg.h     |   66 +
 include/linux/firmware/imx/ele_mu_ioctl.h     |   52 +
 14 files changed, 2204 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,ele_mu.yaml
 create mode 100644 Documentation/devicetree/bindings/mailbox/fsl,muap.txt
 create mode 100644 drivers/firmware/imx/ele_base_msg.c
 create mode 100644 drivers/firmware/imx/ele_mu.c
 create mode 100644 drivers/firmware/imx/ele_mu.h
 create mode 100644 include/linux/firmware/imx/ele_base_msg.h
 create mode 100644 include/linux/firmware/imx/ele_mu_ioctl.h