powerpc/eeh: Check PCIe link after reset

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After reset (e.g. complete reset) in order to bring the fenced PHB
back, the PCIe link might not be ready yet. The patch intends to
make sure the PCIe link is ready before accessing its subordinate
PCI devices. The patch also fixes that wrong values restored to
PCI_COMMAND register for PCI bridges.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Gavin Shan 2013-06-27 13:46:43 +08:00 • committed by Benjamin Herrenschmidt

parent c35ae1796b

commit 652defed48

1 changed files with 144 additions and 13 deletions

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arch/powerpc/kernel/eeh_pe.c

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