Hi Steve,
On Jan 14, 2008 2:09 PM, Stephen Neuendorffer
<[EMAIL PROTECTED]> wrote:
> What kernel version are you targeting? Are you using arch/powerpc or
> arch/ppc? V4 has a data cache errata, which isn't currently in mainline
> arch/powerpc.
I am using arch/ppc/, but to be honest, I don't yet know what the
difference is between those two trees.
Also, I am still learning how to use git, but it appears that I am
using this version:
Tags: v2.6.24-rc7
I am actually using OpenEmbedded which executes the following commands
to get the Linux tree:
git clone
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
cd linux-2.6
git clone git://git.secretlab.ca/git/linux-2.6-virtex.git master
> if((mfpvr() & 0xfffff000) == 0x20011000) {
> /* PPC errata 213: only for Virtex-4 FX */
> __asm__("mfccr0 0\n\t"
> "oris 0,0,[EMAIL PROTECTED]"
> "mtccr0 0"
> : : : "0");
> }
I tried out this code snippit, but it did not help :-( I also looked
in head.S and found that this was already in there:
#if defined(CONFIG_XILINX_VIRTEX_4_FX)
/* PPC errata 213: only for Virtex-4 FX */
mfccr0 0
oris 0,0,[EMAIL PROTECTED]
mtccr0 0
#endif
Today, I tried a completely fresh design in EDK 9.2i (whereas I had
been using 9.1i). I tried the design found in
EDKexamples/Virtex4_PPC_Example_9_2.zip. This design works :-) I am
not sure why it works (or rather, why the other one did not work), but
it works.
-David
(P.S. - Sorry I forgot to send to this to the list on the first try)
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