Michael,

Maybe a DMA issue. Please find attached an output of strace.

Cheers,

Christian

On 03 December 2015 1:37 PM, Christian Zigotzky wrote:

Hi Michael,

I checked out the Linux git till the commit 'powerpc-4.3-1'

git checkout ff474e8ca8547d09cb82ebab56d4c96f9eea01ce

Output:

Checking out files: 100% (13843/13843), done.
Note: checking out 'ff474e8ca8547d09cb82ebab56d4c96f9eea01ce'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. 
Example:

  git checkout -b new_branch_name

HEAD ist jetzt bei ff474e8... Merge tag 'powerpc-4.3-1' of 
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

---

The P.A. Semi Ethernet doesn't work with the powerpc-4.3-1 merge. I 
reverted this merge with:

git revert ff474e8ca8547d09cb82ebab56d4c96f9eea01ce -m 1

Output:

 Committer: christian [off-list ref]
Ihr Name und E-Mail Adresse wurden automatisch auf Basis
Ihres Benutzer- und Rechnernamens konfiguriert. Bitte prüfen Sie, dass
diese zutreffend sind. Sie können diese Meldung unterdrücken, indem Sie
diese explizit setzen:

    git config --global user.name "Ihr Name"
    git config --global user.email ihre@emailadresse.de

Nachdem Sie das getan hast, können Sie Ihre Identität für diesen 
Commit ändern mit:

    git commit --amend --reset-author

 146 files changed, 2047 insertions(+), 3609 deletions(-)
 delete mode 100644 
Documentation/devicetree/bindings/leds/leds-powernv.txt
 delete mode 100644 
Documentation/devicetree/bindings/powerpc/fsl/scfg.txt
 delete mode 100644 arch/powerpc/boot/dts/t1040d4rdb.dts
 delete mode 100644 arch/powerpc/boot/dts/t1042d4rdb.dts
 delete mode 100644 arch/powerpc/boot/dts/t104xd4rdb.dtsi
 delete mode 100644 arch/powerpc/configs/85xx-32bit.config
 delete mode 100644 arch/powerpc/configs/85xx-64bit.config
 delete mode 100644 arch/powerpc/configs/85xx-hw.config
 delete mode 100644 arch/powerpc/configs/85xx-smp.config
 delete mode 100644 arch/powerpc/configs/altivec.config
 create mode 100644 arch/powerpc/configs/corenet32_smp_defconfig
 rename arch/powerpc/configs/{fsl-emb-nonhw.config => 
corenet64_smp_defconfig} (50%)
 delete mode 100644 arch/powerpc/configs/corenet_basic_defconfig
 delete mode 100644 arch/powerpc/configs/mpc85xx_basic_defconfig
 create mode 100644 arch/powerpc/configs/mpc85xx_defconfig
 create mode 100644 arch/powerpc/configs/mpc85xx_smp_defconfig
 delete mode 100644 arch/powerpc/include/asm/trace_clock.h
 delete mode 100644 arch/powerpc/kernel/trace_clock.c
 rewrite arch/powerpc/platforms/powernv/opal-power.c (76%)
 delete mode 100644 drivers/leds/leds-powernv.c

---

After that the P.A. Semi Ethernet works without any problems.

Cheers,

Christian