OK, problem solved. Once I kicked out that nasty IPMI driver, everything works, including the serial console without udbg-immortal.
Lessons learned: - passing "udbg-immortal loglevel=9 initcall_debug" to the kernel will give you much more visibility into early init problems (at least on powerpc arch circa 2.6.20) - building U-Boot 1.2.0 with DEBUG defined in ft_build.c helps in troubleshooting flat device tree problems - the Abatron BDI2000 is an incredibly useful tool: source-level debugging of U-Boot and the Linux kernel, starting at instruction zero *swoon* --Ed _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
