powerpc/tau: Check processor type before enabling TAU interrupt

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According to Freescale's documentation, MPC74XX processors have an
erratum that prevents the TAU interrupt from working, so don't try to
use it when running on those processors.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c281611544768e758bd58fe812cf702a5bd2d042.1599260540.git.fthain@telegraphics.com.au

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Finn Thain 2020-09-05 09:02:20 +10:00 • committed by Michael Ellerman

parent 420ab2bc75

commit 5e3119e15f

2 changed files with 16 additions and 22 deletions

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33

arch/powerpc/kernel/tau_6xx.c

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5

arch/powerpc/platforms/Kconfig

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