Commit 72dc0e5f authored by Etienne Carriere's avatar Etienne Carriere Committed by Daniel DeGrasse
Browse files

doc: migration: 4.2: Note on STM32 TF-M BL2 HW crypto 

Add a note about STM32 boards TF-M BL2 bootloader that do not embed
HW crypto drivers since migration to TF-M v2.2.

Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
parent 31ef45e2

doc/releases/migration-guide-4.2.rst

+5 −0
Changes for doc/releases/migration-guide-4.2.rst: 5 added lines, 0 removed lines.
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@@ -92,6 +92,11 @@ Boards 
  variant (``stm32n6570_dk/stm32n657xx/fsbl``) that must be selected explicitly.

  See board documentation for more information about these variants.



* STM32 boards that embed TF-M BL2 boot stage (``b_u585i_iot02a//ns``, ``nucleo_l552ze_q//ns``

  and ``stm32l562e_dk//ns``) do not embed HW crypto accelerator drivers in BL2 as they previously

  did, now relying on Mbed TLS software implementation. This is related to the upgrade to TF-M

  v2.2. HW crypto accelerators are still supported in TF-M, but only in the runtime secure firmware.



Device Drivers and Devicetree

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