On 03/02/2010 03:57 PM, Michael Buesch wrote:

> A bug in the PCI-E core code is able to show such behavior, because all memory
> transfers (MMIO and DMA) from the PCI device to the wireless core are 
> translated
> by the PCI-E core.
> I think the whole PCI-E core code has to be audited (also the specs, 
> probably).

I have nearly finished the update on the code section of the specs page at
http://bcm-v4.sipsolutions.net/PCI-E. The part that is not done involves the
sections that read an address from the SPROM and perform operations on that 
address.

I found that the chip common registers are mapped at 12K for newer cores on
PCIe. This explains the 0x3XXX addresses. Similarly, the PCIe registers are
mapped at 8K - the 0x2XXX addresses. The SPROM is shadowed at 4K or 0x1XXX.

Larry

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