The question about the high memory support on MPC8360?

[Rune Torgersen]

> From: robert lazarski
> Sent: Thursday, November 29, 2007 7:00 AM
> Subject: Re: The question about the high memory support on MPC8360?
> I also have a requirement to use more than 768MB and 0x30000000. I
> have other problems at the moment, so I haven't tested this completely
> yet. My limited understanding, though, is that to use more than 768MB
> you have to change your kernel configuration, including shifting the
> kernel start address. This is what I plan on testing for 1GB when I
> have time:
> 
> CONFIG_ADVANCED_OPTIONS=y
> CONFIG_LOWMEM_SIZE_BOOL=y
> CONFIG_LOWMEM_SIZE=0x40000000
> CONFIG_KERNEL_START_BOOL=y
> CONFIG_KERNEL_START=0xa0000000
> # CONFIG_CONSISTENT_START_BOOL is not set
> # CONFIG_CONSISTENT_SIZE_BOOL is not set
> # CONFIG_BOOT_LOAD_BOOL is not set
> 
> If that works for current kernels, please respond to the list ;-) .

This is how I do 1G of mem on a /arch/ppc kernel. A short while (couple
of weeks ago) I commented about thei s on a thread about setting up the
TLB handlers on arch/powerpc, and asked if this was going to be possible
to do, and basically got a resouding NO as answer.

WHich means I'll be sticking to arch/ppc for a while yet.
It would be nice to have this also working on arch/powerpc though.