On Wed, Apr 18, 2012 at 01:32:39PM +0200, Arend van Spriel wrote: > I discussed this with hardware designer and here is his quote "You > would need to disable the DMA engines before disable PCIe master > mode. If you didn't do that, and the DMA engines were active, the > MAC would almost certainly hang." > > So disabling the master mode solved your memory corruption, but the > chip will hang. The DMA engines mentioned are the on-chip engines. > As you indicated you can only use common PCI operations so I do not > expect disabling BAR decoding will solve the hang in the chip. Yeah, I can get away with putting generic PCI operations in the bootloader, but a specific Broadcom driver is probably going a bit far... > Only as an experiment you could try to reset the device toggling the > pci power state. Should putting the PCI device in D3 be sufficient for this, or would I also need to touch any state in the 802.11 core? -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
