Hi Eddie,
On 10/22/2019 1:24 PM, Eddie James wrote:
[...]
7: irq[00000000] before[rx] after[stop]
'irq[]' here and '10[]' below are the same register. This log means an
interrupt came with empty status.
00[00008001]
04[007ee005]
08[00000000]
0c[0000607f]
10[00000004] <<< this is interesting. this has changed since the
start of the interrupt handler.
The interrupt status was updated lately at here. Looks like there is a
timing gap in H/W between interrupt triggering and status updating. I
haven't seen this issue in previous H/W versions.
This issue can be resolved by your patch but ultimately this issue
should be fixed in AST2600 A1 revision H/W if possible so that we can
remove the unnecessary interrupt handling.
Thanks,
Jae
