***********
Version 1.1
***********

New Features
============

- Upgraded MCUBoot to v1.6.0., default is now the upstream MCUBoot instead of
  the TF-M fork.

- TF-Fuzz tool for fuzz testing PSA APIs.

- Updated Source code folder structure.

- IAR compiler support.

- LPCXpresso55S69-EVK board support.

- Add Profile Small.

- Enable Ninja CMake Generator.

- FVP_SSE300_MPS2 platform support.

- Rename SST(Secure STorage) to PS(Protected Storage) and partition moved from
  PSA Root of Trust to Application Root of Trust.

- NUCLEO-L552ZE-Q and DISCO-L562QE platform support.

- Restructure documentation to make it more user-friendly.

- Enable Attestation service to use symmetric key algorithm.

- Use CMSIS for testing from
  `tf-m-tests <https://git.trustedfirmware.org/TF-M/tf-m-tests.git>`__
  repository. This removes dependency on the external ``CMSIS_5`` repo.

New Platforms supported
=======================

- Cortex-M33 based system:

  - `LPCXpresso55S69-EVK.
    <https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/lpc5500-cortex-m33/lpcxpresso55s69-development-board:LPC55S69-EVK>`__

  - `NUCLEO-L552ZE-Q.
    <https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-nucleo-boards/nucleo-l552ze-q.html>`__

  - `DISCO-L562QE.
    <https://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-mpu-eval-tools/stm32-mcu-mpu-eval-tools/stm32-discovery-kits/stm32l562e-dk.html>`__

- Cortex-M55 based SSE-300 system:

  - `Fast model FVP_SSE300_MPS2.
    <https://developer.arm.com/tools-and-software/open-source-software/arm-platforms-software/arm-ecosystem-fvps>`__


New Platforms limitations
=========================

- LPCXpresso55S69-EVK doesn't support BL2.

- LPCXpresso55S69-EVK doesn't support ARMCLANG and IARARM toolchain. Patch
  with support for IARARM is available at
  `review.trustedfirmware.org #4023 <https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/4023>`__

- FVP_SSE300_MPS2 doesn't support GNUARM and IARARM toolchain. Patch with
  support for IARARM is available at
  `review.trustedfirmware.org #4574 <https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/4574>`__

Known issues
============

Some open issues exist and will not be fixed in this release.

.. list-table::

  *  - | All the supported GNUARM toolchain versions generate corrupt veneer
       | code for Armv8-M baseline architecture, when the -Os optimization flag
       | is used. This affects the AN519 and AN539 platforms built with GNUARM
       | toolchain and Minsizerel build type.
     - Issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95646

  *  - | PSA Arch Crypto tests have several known failures.
     - See this link for detailed analysis of the failures : https://github.com/ARM-software/psa-arch-tests/blob/master/api-tests/docs/test_failure_analysis.md

  *  - | AN521 FVP soft reset via AIRCR does not reset MPC / PPC / MPU and will
       | cause boot failure. This is known issue for AN521 FVP. This will cause
       | the system to not boot after a warm reset during PSA Arch FF testing.
     - Issue: https://developer.trustedfirmware.org/T692

  *  - | There are 2 additional failures for PSA-Arch Crypto tests with CC-312
       | other than the known failures. This is due to limitation of CC-312
       | implementation as it does not support MD_NONE hashing mode causing the
       | additional failures.
     - Issue: https://developer.trustedfirmware.org/T691

  *  - | Boot up fails if there is unexpected data in flash on Musca-A. The boot
       | is successful and the tests pass if all the associated (PS/ITS/NV
       | Counter) flash areas are erased.
     - Issue: https://developer.trustedfirmware.org/T694

  *  - | When PS/ITS are using Flash on Musca-B1, PSA Arch FF test fails due to
       | known warm reset limitation in the platform. There is an issue with
       | Musca-B1 QSPI flash that causes this failure. The fix is under
       | investigation.
     - Issue: https://developer.trustedfirmware.org/T696

Issues fixed since 1.0
======================

.. list-table::

  *  - | The eflash driver on Musca-B1 can return random failures hence
       | triggering random failures during PSA Arch ITS and PSA Arch PS tests.
       | This happens when ITS/SST is configured to use flash.
     - Issue: https://developer.trustedfirmware.org/T697

  *  - | Release build of PSA Arch Crypto tests have a different number of tests
       | when built for AN521 FVP. This is an issue in the PSA Arch Crypto
       | tests.
     - Issue for PSA Arch Tests project : https://github.com/ARM-software/psa-arch-tests/issues/169

--------------

*Copyright (c) 2020, Arm Limited. All rights reserved.*
