diff options
| author | Pali Rohár <[email protected]> | 2022-02-15 11:23:35 +0100 |
|---|---|---|
| committer | Stefan Roese <[email protected]> | 2022-02-17 14:17:07 +0100 |
| commit | 2727e9dd2795c38a20dda9bda24c3f18fbbbb2bf (patch) | |
| tree | 33bc05f0abe7482cd90e5b70327f1d71b7735dad /doc/develop | |
| parent | 0934dddc643644ccf6e9203c8925c5573dd7779c (diff) | |
arm: a37xx: pci: Do not try to access other buses when link is down
If a PIO request is executed while link-down, the whole controller gets
stuck in a non-functional state, and even after link comes up again, PIO
requests won't work anymore, and a reset of the whole PCIe controller is
needed. Therefore we need to prevent sending PIO requests while the link
is down.
Signed-off-by: Pali Rohár <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Diffstat (limited to 'doc/develop')
0 files changed, 0 insertions, 0 deletions