On Sat, Feb 20, 2021 at 10:49:48AM +0800, Richard Zhu wrote: > 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 075af61c19cd ("PCI: imx6: Limit DBI register length") that > resolves a similar issue on the i.MX 6Quad PCIe. > > Signed-off-by: Richard Zhu <hongxing.zhu@xxxxxxx> > Reviewed-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx> > Reviewed-by: Krzysztof Wilczyński <kw@xxxxxxxxx> > --- > drivers/pci/controller/dwc/pci-imx6.c | 1 + > 1 file changed, 1 insertion(+) I'd like to merge this patch since I believe it is still required, please let me know if that's not the case. Lorenzo > diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c > index 0cf1333c0440..853ea8e82952 100644 > --- a/drivers/pci/controller/dwc/pci-imx6.c > +++ b/drivers/pci/controller/dwc/pci-imx6.c > @@ -1175,6 +1175,7 @@ static const struct imx6_pcie_drvdata drvdata[] = { > .variant = IMX6QP, > .flags = IMX6_PCIE_FLAG_IMX6_PHY | > IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE, > + .dbi_length = 0x200, > }, > [IMX7D] = { > .variant = IMX7D, > -- > 2.17.1 >