[PATCH v5 00/11] firmware: imx: NXP Secure-Enclave FW Driver

Pankaj Gupta
2023-08-23T07:34:51Z

v5 Changes:
- 1/7 DT Binding: Disposed off comments from .yaml
-- to use "-", instead of "_".
-- to use generic name, concatinated with soc-id.
-- removed mu-did.
-- renamed the ele-mu to se-fw
-- moved the file from .../arm/freescale/ to .../firmware/
- 2/7 Changed the .dtsi, as per the comments.
-- removed mu-did
-- renamed the ele_mu to se-fw.
-- updated the compatible string.
-- tested the DTB.
- 4/7 Changed the .dtsi, as per the comments.
-- removed mu-did
-- renamed the ele_mu to se-fw.
-- updated the compatible string.
-- tested the DTB.
- 6/7 Changes in driver code:
-- replace pr_err with dev_err
-- removed export symbols, except one, which will be used in other driver.
-- Each API, send-recived based on device reference.
-- Divided the commits into smaller commits.
- Base Driver
-- Added ABI file.
- exchange init-fw message with enclave's fw
- enabled TRNG
- read-common-fuses

v4 Changes:
- Post internal review, changed the name from "ele-mu" to "se-fw".
- Disposed-off comments in the dt-binding file.
- Removed the non-hw related dt-bindings from the driver code.
- Corrected the File MAINTAINERS for correct name of yaml file.

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"

The NXP's i.MX EdgeLock Enclave, a HW IP creating an embedded
secure enclave within the SoC boundary to enable features like
- HSM
- SHE
- V2X

Communicates via message unit with linux kernel. This driver
is enables communication ensuring well defined message sequence
protocol between Application Core and enclave's firmware.

Driver configures multiple misc-device on the MU, for multiple
user-space applications can communicate on single MU.

It exists on some i.MX processors. e.g. i.MX8ULP, i.MX93 etc.

Pankaj Gupta (11):
dt-bindings: arm: fsl: add imx-se-fw binding doc
arm64: dts: imx8ulp-evk: added nxp secure enclave firmware
arm64: dts: imx8ulp-evk: reserved mem-ranges to constrain ele_fw
dma-range
arm64: dts: imx93-11x11-evk: added nxp secure enclave fw
arm64: dts: imx93-11x11-evk: reserved mem-ranges to constrain ele_fw
dma-range
firmware: imx: add driver for NXP EdgeLock Enclave
firmware: imx: init-fw api exchange on imx93
firmware: imx: enable trng
firmware: imx: enclave-fw: add handling for save/restore IMEM region
firmware: imx: enclave api to read-common-fuses
MAINTAINERS: Added maintainer details

Documentation/ABI/testing/se-cdev | 29 +
.../bindings/firmware/fsl,imx-se-fw.yaml | 121 ++
MAINTAINERS | 10 +
arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 15 +
arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 11 +-
.../boot/dts/freescale/imx93-11x11-evk.dts | 15 +
arch/arm64/boot/dts/freescale/imx93.dtsi | 10 +-
drivers/firmware/imx/Kconfig | 21 +
drivers/firmware/imx/Makefile | 3 +
drivers/firmware/imx/ele_base_msg.c | 272 ++++
drivers/firmware/imx/ele_common.c | 188 +++
drivers/firmware/imx/ele_common.h | 31 +
drivers/firmware/imx/ele_fw_api.c | 110 ++
drivers/firmware/imx/ele_trng.c | 48 +
drivers/firmware/imx/se_fw.c | 1274 +++++++++++++++++
drivers/firmware/imx/se_fw.h | 176 +++
include/linux/firmware/imx/ele_base_msg.h | 66 +
include/linux/firmware/imx/ele_fw_api.h | 24 +
include/linux/firmware/imx/ele_mu_ioctl.h | 52 +
19 files changed, 2474 insertions(+), 2 deletions(-)
create mode 100644 Documentation/ABI/testing/se-cdev
create mode 100644 Documentation/devicetree/bindings/firmware/fsl,imx-se-fw.yaml
create mode 100644 drivers/firmware/imx/ele_base_msg.c
create mode 100644 drivers/firmware/imx/ele_common.c
create mode 100644 drivers/firmware/imx/ele_common.h
create mode 100644 drivers/firmware/imx/ele_fw_api.c
create mode 100644 drivers/firmware/imx/ele_trng.c
create mode 100644 drivers/firmware/imx/se_fw.c
create mode 100644 drivers/firmware/imx/se_fw.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

--
2.34.1