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

From: Inochi Amaoto
Date: Tue Mar 04 2025 - 03:01:06 EST


On Tue, Mar 04, 2025 at 03:53:57PM +0800, Chen Wang wrote:
> I think it should be v2, right? :)
>

Yeah, I have made a mistake. This is v2, not v1.

> On 2025/3/4 15:12, Inochi Amaoto wrote:
> > 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/20250303111648.1337543-1-inochiama@xxxxxxxxx
> >
> > Changed from v1:
> > - https://lore.kernel.org/all/20250221013758.370936-1-inochiama@xxxxxxxxxx
> > 1. patch 1: remove dma-coherent property
> > 2. patch 2: remove unused reset
> > 3. patch 2: fix Kconfig menu title and reorder the entry
> > 4. patch 2: use FIELD_GET/FIELD_PREP to simplify the code.
> > 5. patch 2: rename the irq handle function to match the irq_chip name
> >
> > 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 | 122 ++++++++
> > drivers/pci/controller/dwc/Kconfig | 10 +
> > drivers/pci/controller/dwc/Makefile | 1 +
> > drivers/pci/controller/dwc/pcie-dw-sophgo.c | 270 ++++++++++++++++++
> > 4 files changed, 403 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/pci/sophgo,sg2044-pcie.yaml
> > create mode 100644 drivers/pci/controller/dwc/pcie-dw-sophgo.c
> >
> > --
> > 2.48.1
> >