Bug 173336
| Summary: | [ath] Atheros card improper device poweroff handling on Eee PC 900 | ||
|---|---|---|---|
| Product: | Base System | Reporter: | ADAM David Alan Martin <adamartin> |
| Component: | wireless | Assignee: | freebsd-wireless (Nobody) <wireless> |
| Status: | Open --- | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | 8.2-RELEASE | ||
| Hardware: | Any | ||
| OS: | Any | ||
Responsible Changed From-To: freebsd-bugs->freebsd-wireless Over to maintainer(s). batch change: For bugs that match the following - Status Is In progress AND - Untouched since 2018-01-01. AND - Affects Base System OR Documentation DO: Reset to open status. Note: I did a quick pass but if you are getting this email it might be worthwhile to double check to see if this bug ought to be closed. |
Atheros network 802.11 device: ath0@pci0:1:0:0: class=0x020000 card=0x10261a3b chip=0x001c168c rev=0x01 hdr=0x00 vendor = 'Atheros Communications Inc.' device = 'AR5006 family 802.11abg Wireless NIC' class = network subclass = ethernet can be disabled by "Fn-F2" on the Eee-PC, which causes a device power-off. BAR registers seem to not be properly initialized when the device is restored from poweroff. This problem persists until the next full reboot. (Suspend/Resume does not reset the BAR registers correctly.) Fix: Not a fix, but these are the pci configuration space register dumps via "pciconf -r ath0@pci0:1:0:0 0:255": Correctly initialized registers: 001c168c 00100007 02000001 00000004 fbef0004 00000000 00000000 00000000 00000000 00000000 00005001 10261a3b 00000000 00000040 00000000 00000112 01c25001 00000000 00000000 00000000 00006005 00000000 00000000 00000000 00119010 00280cc0 000a2010 00033c11 10110048 00000000 000003c0 00000000 00000000 00000000 00000000 00000000 00000011 00000000 00000000 00000000 00000004 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 After the problem: 001c168c 00100406 02000001 00000000 00000004 00000000 00000000 00000000 00000000 00000000 00005001 10261a3b 00000000 00000040 00000000 00000112 01c25001 00000000 00000000 00000000 00006005 00000000 00000000 00000000 00119010 00280cc0 000a2010 00033c11 10110008 00000000 000003c0 00000000 00000000 00000000 00000000 00000000 00000011 00000000 00000000 00000000 00000004 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 When the device is off, all "ffffffff" is shown for the configuration space. How-To-Repeat: Remove the driver, or make sure it's not loaded. Power off the wifi (with Fn-F2). Load the driver. Power on the card. All future driver loads, with or without the driver loaded are going to not find "ath0".