Matt Porter wrote:
> I've done this many times for custom board ports. Have your JTAG
> probe configure the memory controller. You then simply drop
> your vmlinux at physical 0. Take your separate initrd image and
> drop it at a safe place like 0x800000. Use the JTAG probe to set
> r4 to 0x800000 and r5 to 0x800000 + (<initrd_size> - 1). Go at
> 0 and you'll boot then root from your initrd.
Ok, now this is exactly what I do. The initrd doesn't get overwritten
anymore. The function mount_root is called, the root device is opened
but I get a panic at:
sb = get_super(ROOT_DEV);
if (sb) { goto mount_it}
...
read_unlock(&file_systems_lock);
panic("VFS: Unable to mount root fs on %s", kdevname(ROOT_DEV));
ROOT_DEV = 0x100 (RAM)
However, when I get to this point initrd_start is equal to 0. I'm not
sure if this is ok, it could have been set to 0 by initrd_release but
I'm not sure. I'm still fighting with the debugger to step into that
part of the code.
Still, this is better than what I had last week. Thanks for your help!
S?bastien C?t?
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