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On HiKey970, there's a PEX 8606 PCI bridge on its PHY with 6 lanes. Only 4 lanes are connected: lane 0 - connected to Kirin 970 (upstream) lane 4 - M.2 slot lane 5 - mini PCIe slot lane 6 - on-board Ethernet controller Each lane has its own PERST# GPIO pin and needs a clock request. Add support to parse a DT schema containing the above data. HiKey 970 requires a little more waiting time for the PCI bridge - which is outside the SoC - to finish the PERST# reset, and then initialize the eye diagram. Increase the waiting time for the PERST# signals accordingly. [bhelgaas: squash refcount fix from Wan Jiabing <wanjiabing@vivo.com>: https://lore.kernel.org/r/20211103062518.25695-1-wanjiabing@vivo.com and drop "parent" refcount per https://lore.kernel.org/all/20211103143059.GA683503@bhelgaas/] Link: https://lore.kernel.org/r/bb391a0e0f0863b66e645048315fab1a4f63f277.1634812676.git.mchehab+huawei@kernel.org Link: https://lore.kernel.org/all/9a365cffe5af9ec5a1f79638968c3a2efa979b65.1634622716.git.mchehab+huawei@kernel.org/ Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Xiaowei Song <songxiaowei@hisilicon.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> |
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| .. | ||
| cadence | ||
| dwc | ||
| mobiveil | ||
| Kconfig | ||
| Makefile | ||
| pci-aardvark.c | ||
| pci-ftpci100.c | ||
| pci-host-common.c | ||
| pci-host-generic.c | ||
| pci-hyperv-intf.c | ||
| pci-hyperv.c | ||
| pci-ixp4xx.c | ||
| pci-loongson.c | ||
| pci-mvebu.c | ||
| pci-rcar-gen2.c | ||
| pci-tegra.c | ||
| pci-thunder-ecam.c | ||
| pci-thunder-pem.c | ||
| pci-v3-semi.c | ||
| pci-versatile.c | ||
| pci-xgene-msi.c | ||
| pci-xgene.c | ||
| pcie-altera-msi.c | ||
| pcie-altera.c | ||
| pcie-brcmstb.c | ||
| pcie-hisi-error.c | ||
| pcie-iproc-bcma.c | ||
| pcie-iproc-msi.c | ||
| pcie-iproc-platform.c | ||
| pcie-iproc.c | ||
| pcie-iproc.h | ||
| pcie-mediatek-gen3.c | ||
| pcie-mediatek.c | ||
| pcie-microchip-host.c | ||
| pcie-rcar-ep.c | ||
| pcie-rcar-host.c | ||
| pcie-rcar.c | ||
| pcie-rcar.h | ||
| pcie-rockchip-ep.c | ||
| pcie-rockchip-host.c | ||
| pcie-rockchip.c | ||
| pcie-rockchip.h | ||
| pcie-xilinx-cpm.c | ||
| pcie-xilinx-nwl.c | ||
| pcie-xilinx.c | ||
| vmd.c | ||