> The UART controller is EXAR ST16C554D. It claims as a 16550 > compatible controller. Each ST16C554D module contains 4 UART, each of > them can be selected via two chip select pad. I think the board > hardware, via a CPLD, make the chip selection transparent to the CPU, so > by a 5-bit address, CPU can addressing individual 8 16550 compatible > registers of each UART.
The EXAR should work. Make sure you have all the addressing and setup right would be my first suggestion - then poke at the registers by hand and double check. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
