tree e71eee3d388c3f3f9e8fa33ad3668eb86d0dd033
parent e0a5e1ddbdf8144d0136acd32f14dce8a8844f64
author Peter Yin <peter.yin@quantatw.com> 1724407737 +0800
committer Amithash Prasad <amithash@meta.com> 1724447847 +0000

meta-facebook: harma: remove flow control

We removed the flow control flag and used DMA as an alternative
because flow control has a limitation requiring a handshake redo
with the BMC. This issue prevents us from connecting to the host
after a BMC reboot.

The root cause of the previous kernel panic issue was that
the Aspeed register was not being cleared when we enable DMA
mode. Therefore, we need to perform an AC cycle whenever we enable
or disable the DMA version change.

Change-Id: I25a595c2625a63c45f453cb8546a006f72b1871b
Signed-off-by: Peter Yin <peter.yin@quantatw.com>