PCI: imx6: Limit DBI register length for imx6qp PCIe

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Define the length of the DBI registers and limit config space to its
length. This makes sure that the kernel does not access registers beyond
that point that otherwise would lead to an abort on the i.MX 6QuadPlus.

See commit 075af61c19 ("PCI: imx6: Limit DBI register length") that
resolves a similar issue on the i.MX 6Quad PCIe.

Link: https://lore.kernel.org/r/1613789388-2495-2-git-send-email-hongxing.zhu@nxp.com
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>

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Richard Zhu 2021-02-20 10:49:48 +08:00 • committed by Bjorn Helgaas

parent fd6403756f

commit 7a289a164c

1 changed files with 1 additions and 0 deletions

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drivers/pci/controller/dwc/pci-imx6.c

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