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Core: Introduce stm32mp remoteproc PTA and driver #6470

Merged
merged 5 commits into from
Dec 15, 2023
Merged

Core: Introduce stm32mp remoteproc PTA and driver #6470

merged 5 commits into from
Dec 15, 2023

Commits on Dec 15, 2023

  1. libutee: add new remoteproc PTA API 

    The remoteproc PTA is charge of providing interface to authenticate
firmware images and managing the remote processor live cycle.
The remoteproc PTA supports platform specificity in the
management of a remote processor:
- firmware authentication based on a platform key,
- load of the segments in remote processor memories,
- start/stop of the remote processor,
- remote processor addresses conversion.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
    @arnopo
    arnopo committed Dec 15, 2023
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  2. drivers: Add stm32mp1 remoteproc driver 

    This driver is responsible for configuring the registers and memories of
the remote processor.
- It stores information about memories assigned to the remote processor
  based on the device tree.
- It ensures consistency between the registered memory and the addresses
of the firmware segments to be loaded.
- Additionally, it is responsible for starting and stopping the remote
processor core.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
    @arnopo
    arnopo committed Dec 15, 2023
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  3. pta: stm32mp: add new remoteproc PTA 

    Add remoteproc PTA for the stm32mp1 platform.
The PTA relies on the stm32_remoteproc driver for the remoteproc
management.
It is charge of providing interface for authenticating firmware images
and managing the remote processor live cycle.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
    @arnopo
    arnopo committed Dec 15, 2023
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  4. plat-stm32mp1: Add the remoteproc TA in early TA list 

    On the stm32mp1 platform, it is possible to load firmware during the
bootloader stage, for instance, by U-boot. To enable this feature,
The remoteproc TA should be added to the list of early-TAs.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
    @arnopo
    arnopo committed Dec 15, 2023
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  5. dts: stm32: update m4_rproc to support the remoteproc OP-TEE framework 

    Update device tree to support the load of the remoteproc firmware
by OP-TEE.
- declare m_ipc_shm memory region that can contain the remote processor
  resource table and trace buffer,
- update reset to align declaration with the Linux devicetree

To enable the load of the coprocessor firmware by OP-TEE, user have
to update the m4_rproc node compatible property:
-"st,stm32mp1-m4": the load is managed by Linux or U-boot,
-"st,stm32mp1-m4-tee": the load is managed by OP-TEE.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
    @arnopo
    arnopo committed Dec 15, 2023
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