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PCI: eswin: Add ESWIN PCIe Root Complex driver

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Add driver for the ESWIN PCIe Root Complex based on the DesignWare PCIe
core, IP revision 5.96a. The PCIe Gen.3 Root Complex supports data rate of
8 GT/s and x4 lanes, with INTx and MSI interrupt capability.

Signed-off-by: Yu Ning <ningyu@eswincomputing.com>
Signed-off-by: Yanghui Ou <ouyanghui@eswincomputing.com>
Signed-off-by: Senchuan Zhang <zhangsenchuan@eswincomputing.com>
[mani: renamed "EIC7700" to "ESWIN", added maintainers entry, removed async probe]
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: add driver tag in subject]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260227111808.1996-1-zhangsenchuan@eswincomputing.com
This commit is contained in:
Senchuan Zhang
2026-02-27 19:18:08 +08:00
committed by Bjorn Helgaas
parent 249c48a558
commit b593c26d08
4 changed files with 426 additions and 0 deletions
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10
drivers/pci/controller/dwc/Kconfig
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@@ -93,6 +93,16 @@ config PCIE_BT1
Enables support for the PCIe controller in the Baikal-T1 SoC to work
in host mode. It's based on the Synopsys DWC PCIe v4.60a IP-core.
config PCIE_ESWIN
tristate "ESWIN PCIe controller"
depends on ARCH_ESWIN || COMPILE_TEST
depends on PCI_MSI
select PCIE_DW_HOST
help
Say Y here if you want PCIe controller support for the ESWIN SoCs.
The PCIe controller in ESWIN SoCs is based on DesignWare hardware, and
works only in host mode.
config PCI_IMX6
bool