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[0/2] riscv: sophgo Add PCIe support to Sophgo SG2044 SoC

Message ID 20250221013758.370936-1-inochiama@gmail.com (mailing list archive)
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Series riscv: sophgo Add PCIe support to Sophgo SG2044 SoC | expand

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Inochi Amaoto Feb. 21, 2025, 1:37 a.m. UTC 
Sophgo's SG2044 SoC uses Synopsys Designware PCIe core
to implement RC mode.

For legacy interrupt, the PCIe controller on SG2044 implement
its own legacy interrupt controller. For MSI/MSI-X, it use an
external interrupt controller to handle.

The external MSI interrupt controller patch can be found on [1].
As SG2044 needs a mirror change to support the way to send MSI
message and different irq number.

[1] https://lore.kernel.org/all/cover.1736921549.git.unicorn_wang@outlook.com/

Inochi Amaoto (2):
  dt-bindings: pci: Add Sophgo SG2044 PCIe host
  PCI: sophgo-dwc: Add Sophgo SG2044 PCIe driver

 .../bindings/pci/sophgo,sg2044-pcie.yaml      | 125 ++++++++
 drivers/pci/controller/dwc/Kconfig            |  10 +
 drivers/pci/controller/dwc/Makefile           |   1 +
 drivers/pci/controller/dwc/pcie-dw-sophgo.c   | 282 ++++++++++++++++++
 4 files changed, 418 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/sophgo,sg2044-pcie.yaml
 create mode 100644 drivers/pci/controller/dwc/pcie-dw-sophgo.c

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