On Thu, Mar 19, 2009 at 07:27:25PM -0400, Craig Nadler wrote: > I'm have problems using a Technobox 4960 4-port RS-232 PMC (PCI) card > on a board based on the Broadcom 1480 (MIPS) SOC. Each serial port on > the PMC card uses a 16550A UART accessed using BAR2 thru BAR5. The > BCM1480 based system board is running Linux 2.6.20.1 and a boot > loader software called CFE from Broadcom. could you try a newer kernel ? I've fixed PCI IO access some time ago. It should be included in 2.6.25 and newer. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessary a good idea. [ RFC1925, 2.3 ]