RTEMS | bsps/stm32h7: make errata configurable (!184)

[Sebastian Huber (@sebhub)]

Sebastian Huber commented on a discussion on spec/build/bsps/arm/stm32h7/errata.yml: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/184#note_111133

 > +SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
 > +build-type: script
 > +copyrights:
 > +- Copyright (C) 2024 Karel Gardas
 > +do-build: null
 > +do-configure: |

That a certain memory doesn't support unaligned access is not unusual. Normally, this is fixed by using a cache in the middle. You may have to configure it as write-back, write-allocate, and read-allocate.

If the Ethernet DMA performs an unaligned access, then you may have issues since it doesn't use the cache.

-- 
View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/184#note_111133
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