Comments (2)
We have a similar problem:
[ 14.400000] ASIC revision: 76120044
[ 14.430000] ROM patch already applied
[ 14.440000] Firmware Version: 0.0.00
[ 14.440000] Build: 1
[ 14.450000] Build Time: 201406241830____
[ 14.480000] Firmware running!
[ 14.480000] pci device driver attached
[ 14.490000] ASIC revision: 76020044
[ 14.520000] ROM patch already applied
[ 14.520000] Firmware Version: 0.0.00
[ 14.530000] Build: 1
(boot hangs)
After sprinkling some debug printk()s I have determined that this is the offending line: https://github.com/openwrt/mt76/blob/master/init.c#L383
Driver executes everything until mt76_set(dev, 0x530, 0xf)
and fails straight at that point. Commenting that out causes the driver to fail at a later point. Using Mediatek's mt76x2e
driver causes the same problem, though, so I don't think mt76
is solely responsible for this.
A chat with Mediatek suggests that this might be a power issue but on the boards that fail we haven't identified any problems on the power rails. As for the chip revision, all the boards that fail are Revision D.
@nbd168 Have you seen this behaviour before?
from mt76.
I've seen similar issues in cases where the PCI device wasn't properly reset over a reboot. Either way, I'm pretty sure this is not an mt76 bug - it's probably either a hardware issue or a kernel PCI initialization issue.
from mt76.
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