Hi Thomas,
On 04/26/2012 05:02 PM, Thomas Petazzoni wrote:
Hello Greg,
Le Thu, 26 Apr 2012 09:56:23 +1000,
Greg Ungerer<g...@snapgear.com> a Úcrit :
I couldn't see any kernel patches linked here. Did you need any,
or have you posted them somewhere else?
The kernel patch is at
http://lists.busybox.net/pipermail/buildroot/2012-April/052585.html,
hidden inside a Buildroot patch.
I haven't posted it anywhere else because it's a hack to workaround a
Qemu problem: the 5208 apparently has support for separate supervisor
and userspace stack pointers (through two different registers), but
Qemu doesn't emulate that. So I think it's a flaw in Qemu emulation
rather than a kernel problem, but it was easier for now to workaround
it by just adding one "select COLDFIRE_SW_A7".
Ah, ok. I only put the dual stack pointer support in a year or 2 back.
And it is only supported on the more modern ColdFire's, guess the QEMU
support is for the simpler parts :-)
Nice to see that it can run under QEMU!
Well, as I said, it actually doesn't run very well: if I use /bin/sh as
init=, then I can run *one* command, and the kernel crashes :-)
So we can say it boot all the way to userspace, but userspace isn't
very useful :)
Well, it is a good start at least.
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: g...@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close, FAX: +61 7 3891 3630
Milton, QLD, 4064, Australia WEB: http://www.SnapGear.com
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