[v3,0/7] firmware: imx: NXP Edgelock Enclave MUAP Driver

Message

Pankaj Gupta June 16, 2023, 6:11 p.m. UTC

v3 Changes:
- update the commit message for documentation.
- Fixed dt-binding checking error for file- fsl,ele_mu.yaml
- Coverity fixes in the ele_mu.c

v2 Changes:

- Fixed Kernel Test Bot issues.
- Removed ".../devicetree/bindings/mailbox/fsl,muap.txt"

v1:

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):
  dt-bindings: arm: fsl: add mu binding doc
  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    |  144 ++
 MAINTAINERS                                   |    9 +
 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      |   12 +-
 drivers/firmware/imx/Kconfig                  |   11 +
 drivers/firmware/imx/Makefile                 |    2 +
 drivers/firmware/imx/ele_base_msg.c           |  372 +++++
 drivers/firmware/imx/ele_fw_api.c             |  112 ++
 drivers/firmware/imx/ele_mu.c                 | 1442 +++++++++++++++++
 drivers/firmware/imx/ele_mu.h                 |  180 ++
 include/linux/firmware/imx/ele_base_msg.h     |   62 +
 include/linux/firmware/imx/ele_fw_api.h       |   19 +
 include/linux/firmware/imx/ele_mu_ioctl.h     |   52 +
 15 files changed, 2458 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/freescale/fsl,ele_mu.yaml
 create mode 100644 drivers/firmware/imx/ele_base_msg.c
 create mode 100644 drivers/firmware/imx/ele_fw_api.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_fw_api.h
 create mode 100644 include/linux/firmware/imx/ele_mu_ioctl.h