Bug 197266
| Summary: | DWC interface panics ODROID-C1 | ||||||
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| Product: | Base System | Reporter: | john | ||||
| Component: | arm | Assignee: | freebsd-arm (Nobody) <freebsd-arm> | ||||
| Status: | Closed FIXED | ||||||
| Severity: | Affects Only Me | CC: | loos | ||||
| Priority: | --- | Keywords: | patch | ||||
| Version: | CURRENT | ||||||
| Hardware: | Any | ||||||
| OS: | Any | ||||||
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This patch will be more likely to get attention here. I believe Ruslan Bukin address this in commit 278670. Fixed in r278670. |
Created attachment 152470 [details] patch for dwc panic Description: I'm in the process of bringing up the ethernet interface on the ODROID-C1 which uses the DWC MAC. Currently FreeBSD reports that the DWC attach failed due to "Can't reset DWC.\n" and shortly afterwards panics in dwc_intr when it executes DWC_LOCK(sc). The problem is resetting the DWC checks for "i == 0" as a sign that the reset failed, however the loop starts at zero and counts up ... the condition being checked is incorrect. Also the interrupt handler probably shouldn't be installed so early (currently attach doesn't cleanup on failure). How-To-Repeat: Build FreeBSD for the ODROID-C1 (this requires patches not yet committed to the source tree) and boot the OS. Fix: With the supplied patch DWC successfully attaches. There are other issues preventing DWC from sending / receiving packets which I'm still looking at.