haven't been completely
ported back to ARM. I also added a console over PCI, to avoid the need
for a serial cable to each plug-in card. This code is available as a
patch for 2.2 kernels at:
ftp://ftp.agelectronics.co.uk/pub/pcimsg-patch-20001201.gz
- Adrian Cox
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ctor?
0 is a bit of a hack, and I'm using it now in PowerPC systems with no
ISA bus.
1 has logical consistency, but requires changes to the mm code.
2 has the huge advantage of not requiring changes to the mm code, but
I'm not sure that destructors are really meant for this sort of trick.
;s just not practical.
About 30MB for a cross-compilation environment capable of building
kernels. Then add whatever libraries you need if you want to build
userspace, and another 5 or so MB for C++. It's less than a built kernel
tree.
- Adrian Cox, AG Electronics
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d)
cPCI is PCI + hotswap. Most people seem to ignore the hotswap, except at
tradeshows.
- Adrian Cox, AG Electronics
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Please read the FAQ at http://www.tux.org/lkml/
lk to each other. It could eventually grow
into a big list of platform specific workarounds, but at least they'd
all be in one place where we could see them.
- Adrian Cox, AG Electronics
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the body of a mess
george anzinger wrote:
> Seems like you are sneaking up on priority inherit mutexes. The locking
> over head is not so bad (same as spinlock, except in UP case, where it
> is the same as the SMP case). The unlock is, however, the same as the
> lock overhead. It is hard to beat the store of ze
Jamie Lokier wrote:
> Adrian Cox wrote:
>> Jamie Lokier's suggestion of raising priority when in the kernel doesn't
>> help. You need to raise the priority of the task which is currently in
>> userspace and will call up() next time it enters the kernel. You do
if you try to
implement an interface to talk to a CF card in an embedded system you
find this out.
- Adrian Cox
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Richard A. Smith wrote:
> On Mon, 02 Apr 2001 21:50:59 +0100, Adrian Cox wrote:
>> If only. In my limited experience SanDisk cards have been the most
>> tolerant. I suspect that Sandisk actually implement the full range of
>> timings documented in the spec, and nobody else
Dylan Griffiths wrote:
> The VIA KT133 chipset exhibits the following bugs under Linux 2.2.17 and
> 2.4.0:
> 1) PS/2 mouse cursor randomly jumps to upper right hand corner of screen and
> locks for a bit
This happens to me about once a month on a BX chipset PII machine here,
and on a KT133 chipse
safemode wrote:
> Adrian Cox wrote:
> > Dylan Griffiths wrote:
> > > 1) PS/2 mouse cursor randomly jumps to upper right hand corner of screen and
> > > locks for a bit
> > This happens to me about once a month on a BX chipset PII machine here,
> > and on a K
sages coming out through the serial
port.
- Adrian Cox
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aster
and the northbridge is the PCI target.
--
Adrian Cox http://www.humboldt.co.uk/
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i386 to ppc all that is required is to
add the cpu_to_le32() macros around data in host memory that the device
accesses, and to remove any #ifdef __powerpc__ code written by people
who don't realise that ppc uses the standard linux pci code.
--
Adrian Cox http://www.humboldt.co.uk/
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To
his with 2.4.6 or an earlier version? 2.4.6 contained new code for
talking to the codec.
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communication with the codec was often
false reporting of codec capabilities. So I'd recommend trying 2.4.6, to
see if the codec really is locked at 48kHz.
--
Adrian Cox http://www.humboldt.co.uk/
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the
There is a trick to route that interrupt to an
external APIC involving config register 0x58 in function 0, but I've not
used it.
Most southbridge functions work this way. The USB on the 686B is like
this, and the the IDE controller always generates the legacy IRQ 14/15.
- Adrian Cox
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