Hello Richard, On 02.08.23 08:06, Richard Zhu wrote: > Add legacy 32bit i.MX PCIe EP mode support > > The PCI controller contained in i.MX6/7 legacy SOCs is one dual mode > PCIe controller, and can work either as RC or EP. > > This series add i.MX6/7 PCIe EP mode supports. And had been verified > on i.MX6 sabresd and i.MX7 SDB boards. > > In the verification, one board PCIe is used as RC, the other one is used > as EP. > Use the cross TX/RX differential cable connect the two PCIe ports of > these two boards. > > +-----------+ +------------+ > | PCIe TX |<-------------->|PCIe RX | > | | | | > | Board | | Board | > | | | | > | PCIe RX |<-------------->|PCIe TX | > +-----------+ +------------+ I am curious what software you are running on both sides to test? Do you use CONFIG_PCI_EPF_TEST? What do you run on RC side? Thanks, Ahmad > > [PATCH 1/9] dt-bindings: PCI: fsl,imx6q: Add i.MX6Q and i.MX6QP PCIe > [PATCH 2/9] dt-bindings: PCI: fsl,imx6q: Add i.MX6SX PCIe EP > [PATCH 3/9] dt-bindings: PCI: fsl,imx6q: Add i.MX7D PCIe EP > [PATCH 4/9] arm: dts: nxp: Add i.MX6QDL and i.MX6QP PCIe EP supports > [PATCH 5/9] arm: dts: nxp: Add i.MX6SX PCIe EP support > [PATCH 6/9] arm: dts: nxp: Add i.MX7D PCIe EP support > [PATCH 7/9] PCI: imx6: Add i.MX6Q and i.MX6QP PCIe EP supports > [PATCH 8/9] PCI: imx6: Add i.MX6SX PCIe EP support > [PATCH 9/9] PCI: imx6: Add i.MX7D PCIe EP support > > Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml | 50 +++++++++++++++++++++++++++++++++++++++++---- > arch/arm/boot/dts/nxp/imx/imx6qdl.dtsi | 14 +++++++++++++ > arch/arm/boot/dts/nxp/imx/imx6qp.dtsi | 4 ++++ > arch/arm/boot/dts/nxp/imx/imx6sx.dtsi | 17 +++++++++++++++ > arch/arm/boot/dts/nxp/imx/imx7d.dtsi | 27 ++++++++++++++++++++++++ > drivers/pci/controller/dwc/pci-imx6.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- > 6 files changed, 200 insertions(+), 5 deletions(-) > > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
