Hi, I m working on porting the 2.6.14.6 Linux kernel to the Encore M3 board that has the AU1500 MIPS processor on it and is supported by the 2.4 kernel. The board has a serial port on a VIA82C686B Southbridge that is on the PCI bus. Currently, the kernel hangs at the console_init function. A kernel oops is generated following a page fault in the serial_out function as the address of the serial port given to the kernel is incorrect. According to the reference manual for this board, 0x5000 0000 is the I/O Space address register. It is used to access PCI I/O space for devices that require I/O access. How do I find the Base address for the Southbridge? Once I find this, I can add an offset of 0x3F8 and access COM 1. I realise my questions are basic, but I am a beginner in Linux and appreciate your feedback. Thanks, Ashlesha.
