GENERIC kernel issues

[Warner Losh]

On Mar 4, 2013, at 6:09 PM, Ian Lepore wrote:
> On Sun, 2013-03-03 at 11:43 -0800, Tim Kientzle wrote:
>> 
>> ** PHYSADDR/KERNPHYSADDR hardwiring.  Ian has made a
>> lot of progress and I'm working on some related changes to
>> address this.  I think we understand how to eliminate these
>> constants and replace them with run-time detection of the
>> load address.  I'm still not sure what changes might be needed
>> to the loader to make this work. 
> 
> I don't think anything more needs to be done to the loader to be able to
> load a kernel built with the ldscript changes, beyond the change I did a
> week or two ago to make it work right with elf headers that contain
> physical addresses.
> 
> On the other hand, I haven't got anything to offer on the problem of the
> loader needing to be linked differently for each board or SoC, since
> they all have physical memory in differing address ranges.

Well, the Phyiscal memory load address is just a hint after all. Any way to leave it blank and have ubldr cope by putting it in the first available phyiscal memory slot from the FDT?

Warner