Messages in this thread | | | Date | Tue, 4 Nov 2008 20:36:43 +0000 | From | Alan Cox <> | Subject | Re: [BUG] serial base baud misdetected in 2.6.27 |
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> 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 ?
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