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doc: release notes: ARC

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2.4 release notes for ARC related changes

Signed-off-by: Ruud Derwig <Ruud.Derwig@synopsys.com>
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Ruud Derwig 2020-09-23 17:46:50 +02:00 • committed by Maureen Helm
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doc/releases/release-notes-2.4.rst
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@ -206,6 +206,13 @@ Architectures
* ARC:
* Added ARC MetaWare toolchain support
* General arch improvements for stacks & memory domains
* API improvements for cache flush and cache invalidate
* Debugging help: show all registers on exception
* Fix for fast irq (one register bank configuration)
* Fix for undefined shift behavior (CID 211523)
* ARM:
@ -260,12 +267,25 @@ Boards & SoC Support
* ARM Cortex-M1/M3 DesignStart FPGA
* NXP i.MX RT685, i.MX8M Mini, and LPC11U6x
* ARC QEMU support for EM and HS family
* Made these changes in other SoC series:
* STM32L4/STM32WB: Added support for Low Power Mode
* STM32H7/STM32WB/STM32MP1: Added Dual Core concurrent register access
protection using HSEM
* Increase cpu frequency for ARC nsim_hs_smp
* Changes for ARC boards:
* ARC QEMU boards for ARC EM and HS
* ARC MetaWare toolchain support, including mdb runner for various ARC boards
* gcov coverage support for ARC QEMU
* New nSIM configuration, corresponding to em7d_v22 EMSK board
* Enable SMP on HSDK board, including dual core and quad core configurations
* Switch from legacy ARC-nSIM UART to ns16550 UART model and driver
* Fix EMSDP secure config for emsdp_em7d_esp
* Added support for these ARM boards:
@ -599,6 +619,12 @@ Bluetooth
Build and Infrastructure
************************
* Improved support for additional toolchains
* Better toolchain abstractions
* Support for the ARC MetaWare toolchain
* Devicetree:
* Added new devicetree macros that provide a default value if the property
@ -608,6 +634,7 @@ Build and Infrastructure
to allow applications an easy way to specify application specific
devicetree properties without having a binding.
* Support for multiple SOC and ARCH roots.
The :ref:`SOC_ROOT <application>` and ``ARCH_ROOT`` variables used to specify
support files for out of tree SoCs and architectures now accept multiple