Alan Cox wrote:
like it's hanging off the PCI bus. The vendor/device matches to an Exar
Corp. XR17C152, which is given a base_baud of 921600 in
drivers/serial/8250_pci.c.
According to the chip specs, 921600 is correct with the default crystal
and control register values. However, other crystals can be used and
there's also a control register bit to enable a prescalar which cuts the
baud rate by a factor of four. I suspect that one of these has been
done on our boards.
Probably. Did your vendor have the sense to set subvendor/subdevice
identifiers that can be used to identify that specific unit ?
No idea, but I'll look into it. Thanks for the help.
Chris
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