Dear David,
in message OFEE9207A1.054F5F7A-ON85256D9F.004C558D@nanometrics.ca you wrote:
This cannot work. The powerpc kernel requires load address == entry point = 0x0000.
Correct me if I'm wrong, I thought the kernel can be booted from any location in memory, the startup code in the i386 tree can boot the kernel from low and high memory. I should've been more faithful to the documentation. =)
With U-boot, there is no "statup code", there is just the Linux kernel which must be loaded at 0x0000 and has an entry point at 0x0000.
I set the kenrel load address back to 0x0000. I had to move the tftp load address to 0x400000 so that it had enough space to decompress the kernel to low memory. That was the problem I had before because by default tftp loads uImage to 0x100000. But I'm back to the same problem again that as soon as u-boot passes control to the kernel, it hangs without spitting a single meaningful message to the console.
There has been a lot of reasonable advice what to do:
- attach a BDI2000 and debug the code - print a memory dump of the log_buf area and check for kernel messages there ...
I really need someone to tell me what could possibly go wrong here. =)
Many things can go wrong. Inclding most simple things like that you forgot to pass a console= argument setting the correct baudrate.
Best regards,
Wolfgang Denk