diff options
| author | Sean Cross <sean@xobs.io> | 2020-05-21 21:46:37 +0800 |
|---|---|---|
| committer | Sean Cross <sean@xobs.io> | 2020-05-21 21:46:37 +0800 |
| commit | fd4ef233c6d9b312c3582466c68390a16ddf15fa (patch) | |
| tree | 9155810b4e9e8bbaba2329f036f962efd8d0d91e /shared-module/_pixelbuf | |
| parent | 77cf4dce8f1ae03edbe275cb82e250daeba8990f (diff) | |
nrf: port: add memory barrier before wfi
ARM recommends issuing a DSB instruction propr to issuing WFI, as it is
required on many parts suchas Cortex-M7. This is effectively a no-op on
the Cortex-M4 used in most NRF parts, however it ensures that we won't
be surprised when new parts come out.
See
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0321a/BIHICBGB.html
for more information.
Signed-off-by: Sean Cross <sean@xobs.io>
Diffstat (limited to 'shared-module/_pixelbuf')
0 files changed, 0 insertions, 0 deletions