Hello folks,

In a current work project, I have inherited a compactPCI board that has an mpc7447/7448 powerpc processor as well as a Marvell system controller, model mv64462 (stripped down mv64460). The board has a somewhat working U-boot 1.1.2 loader (using db64460 platform) and a Gentoo Linux port (kernel version 2.6.9 built using arch/ppc) running on it from long ago and a company far far away. It looks like the company contracted with Timesys to pull together the initial software. To prepare for an upcoming deployment, I would like to bring the OS up-to-date on this board with a newer kernel (targeting 2.6.24r3), as well as migrate U-boot to 1.3.3 and fix some bugs along the way.

My Linux kernel work is going very well, but with U-boot I’m stuck. I have what I believe ‘may’ be the working U-boot 1.1.2 source code, and I have migrated all of the board’s customizations from various files into the 1.3.3 stream; however, I can get –no- console output on the serial port. I don’t have access to a remote debugger, so I’m working in the dark and have no idea how far, if at all, the initialization is progressing. Does anyone know of any tips to help me along?  Any changes in mpsc device initialization from 1.1.2 to 1.3.3 that could help me? Any clues?

Regards,

Stephen