Hi Thomas,
On 04/26/2012 10:06 PM, Thomas Petazzoni wrote:
Le Thu, 26 Apr 2012 20:13:08 +1000,
Greg Ungerer<g...@snapgear.com> a Úcrit :
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 :-)
Well, either Qemu pretends to emulate a 5208 and it should support the
dual stack pointer thing, or it shouldn't pretend to emulate a 5208.
Am I correct in my understanding is that the 5208 hardware does support
dual stack pointers?
Yes, it does.
FWIW the 5208 (and specifically the M5208EVB) is a target I test with
a lot. All recent mainline kernels work on it.
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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