USB tests
Tested 3 sticks:
Tested coreboot v4.6.4 with SeaBIOS 1.11.0.3:
50x coldboots USB detection 50x warmboots USB detection 50x boot Voyage Linux 0.11 and reboot USB detection
| Stick no. | Coldboot | Warmboot | Reboot |
|---|---|---|---|
| 1 | PASS | PASS | PASS |
| 2 | PASS | PASS | PASS |
Tested coreboot v4.0.14 with SeaBIOS 1.11.0.3:
50x coldboots USB detection 50x warmboots USB detection 50x boot Voyage Linux 0.11 and reboot USB detection
| Stick no. | Coldboot | Warmboot | Reboot |
|---|---|---|---|
| 1 | PASS | PASS | PASS |
| 2 | PASS | PASS | PASS |
Other results of not-working sticks are presented in this document
Next test iteration
Test date: 29.05.2018 Firmware version: v4.6.9 Platforms:
- apu4a S/N: WN1142383_1708
- apu4a S/N: WN1142380_1708
Sticks:
Test conditions:
- coldboot x50
- warmboot x50
- boot Debian over PXE and reboot then check USB presence x50
- two identical USB 3.x sticks plugged simultaneously in both slots
Detection rate:
| Stick no./ platform. no | Coldboot | Warmboot | Reboot |
|---|---|---|---|
| 1/1 | 100% | 100% | unable to test (platform hangs after few reboots) |
| 2/2 | 92% | 96% | unable to test (platform hangs after few reboots) |
| 3/1 | 0% | 0% | unable to test (platform hangs after few reboots) |
Other observations:
Sticks no. 1 and 2 work pretty good. They advertise as USB 3.x sticks almost immediately after host controller reset and seem to not collide with corresponding USB 2.0 ports.
Stick no. 3 when plugged causes the reset of the host controller to fail (timeout). It is necessary to increase the timeout value for host controller reset. Even if the timeout is increased, the sticks do not advertise as USB 3.x. The are handled the same as USB 2.0 sticks.
Stick no. 2 was not detected with 100% accuracy, i.e. sometimes only one of two sticks were detected in one boot iteration. Issue related to port "toxicity" observed on apu4.
Results for stick no 3. after timeout adjustment:
| Stick no./ platform. no | Coldboot | Warmboot | Reboot |
|---|---|---|---|
| 3/2 | 80% | 100% | unable to test (platform hangs after few reboots) |
Stick no. 3 was not detected with 100% accuracy, i.e. sometimes only one of two sticks were detected in one boot iteration. Issue related to port "toxicity" observed on apu4.