[PATCH RFT 0/4] pci: add common Designware PCIe functions and support Amlogic Meson PCIe controller

[Shawn Lin]

Hi Neil,

On 2021/3/22 17:18, Neil Armstrong wrote:
> With the introduction of pcie_dw_rockchip, and need to support the DW PCIe in the
> Amlogic AXG & G12 SoCs, most of the DW PCIe helpers would be duplicated.
> 
> This introduce a "common" DW PCIe helpers file with common code merged from the
> dw_ti and dw_rockchip drivers and adapted to fit with the upcoming dw_meson.

That's a good idea.

BTW, pcie_dw_mvebu.c and  pcie_imx.c also should need a migration.

> 
> The following changes will switch the dw_ti and dw_rockchip, and introduce a new
> driver to support the Amlogic AXG & G12 SoCs using these new common helpers.
> 
> The dw_meson has been validated, but the dw_ti and dw_rockchip would need testing
> on hardware to validate nothing has been broken.
> 
> Neil Armstrong (4):
>    pci: add common Designware PCIe functions
>    pci: pcie_dw_ti: migrate to common Designware PCIe functions
>    pci: pcie_dw_rockchip: migrate to common Designware PCIe functions
>    pci: add Amlogic Meson Designware PCIe controller
> 
>   drivers/pci/Kconfig            |  15 +-
>   drivers/pci/Makefile           |   2 +
>   drivers/pci/pcie_dw_common.c   | 352 ++++++++++++++++++++++++
>   drivers/pci/pcie_dw_common.h   | 153 +++++++++++
>   drivers/pci/pcie_dw_meson.c    | 459 ++++++++++++++++++++++++++++++++
>   drivers/pci/pcie_dw_rockchip.c | 472 ++-------------------------------
>   drivers/pci/pcie_dw_ti.c       | 444 +++----------------------------
>   7 files changed, 1046 insertions(+), 851 deletions(-)
>   create mode 100644 drivers/pci/pcie_dw_common.c
>   create mode 100644 drivers/pci/pcie_dw_common.h
>   create mode 100644 drivers/pci/pcie_dw_meson.c
>