[PATCH v5 0/3] Add StarFive JH7110 PCIe drvier support

[Minda Chen <minda.chen@starfivetech.com>]

This patchset needs to apply after patchset in [1]. These PCIe series patches
are based on the JH7110 RISC-V SoC and VisionFive V2 board.

[1] https://patchwork.ozlabs.org/project/uboot/cover/20230329034224.26545-1-yanhong.wang@starfivetech.com

The PCIe driver depends on gpio, pinctrl, clk and reset driver to do init.
The PCIe dts configuation includes all these setting.

The PCIe drivers codes has been tested on the VisionFive V2 boards.
The test devices includes M.2 NVMe SSD and Realtek 8169 Ethernet adapter.

previous patch version

v1: https://patchwork.ozlabs.org/project/uboot/cover/20230223105240.15180-1-minda.chen@starfivetech.com/
v2: https://patchwork.ozlabs.org/project/uboot/cover/20230308054833.95730-1-minda.chen@starfivetech.com/
v3: https://patchwork.ozlabs.org/project/uboot/cover/20230329100143.10724-1-minda.chen@starfivetech.com/
v4: https://patchwork.ozlabs.org/project/uboot/cover/20230411010209.76561-1-minda.chen@starfivetech.com/

changes
  v5
   patch 1
    1. split PLDA controller driver codes to pcie_plda_common.c
    2. correct the codes of record secondary number. 
   patch 3
    1. change the pcie dtsi config. make them the same with kernel.
 
  v4
   patch 1
    1. Remove the IDS_REVISION_ID macros.
    2. Replace sec_busno to first_busno in starfive_pcie
    3. Remove starfive_pcie_off_conf function.
    4. Replace "imply" to "depends on" in PCIe Kconfig.
    5 .Check sec_busno in starfive_pcie_addr_valid.
 
  v3
   patch 1
    1. remove the read vendor ID delay
    2. remove starfive_pcie_hide_rc_bar function. do not hide host
bridge BAR write.
    3. Using PCIE_ECAM_OFFSET and PCI_CLASS_BRIDGE_PCI_NORMAL macros.
    4. Add comments for bus and address limitation reason in function
       starfive_pcie_addr_valid
    5. Change the multiple line comments in Line 373
    6. Using gpio_request_by_name to get PCIe reset gpio,and using
       dm_gpio_set_value set GPIO value.
  patch 2
    1. support PCIeboth 12a and 13b vf2 board.  
  patch 3
    1. reset dts change to reset-gpio.

  v2
   1. remove clock commit. The pcie clocks change has been includeded in [1].
   2. Using GENMASK marco1 in patch1.
   3. remove the syscon dts node in patch3. The syscon dts dts node has been
      included in [1]. 


Mason Huo (3):
  starfive: pci: Add StarFive JH7110 pcie driver
  configs: starfive-jh7110: Add support for PCIe host driver
  riscv: dts: starfive: Enable PCIe host controller

 .../dts/jh7110-starfive-visionfive-2.dtsi     |  11 +
 arch/riscv/dts/jh7110.dtsi                    |  88 +++++
 configs/starfive_visionfive2_12a_defconfig    |  10 +
 configs/starfive_visionfive2_13b_defconfig    |  10 +
 drivers/pci/Kconfig                           |  13 +
 drivers/pci/Makefile                          |   2 +
 drivers/pci/pcie_plda_common.c                | 116 +++++++
 drivers/pci/pcie_plda_common.h                | 118 +++++++
 drivers/pci/pcie_starfive_jh7110.c            | 317 ++++++++++++++++++
 9 files changed, 685 insertions(+)
 create mode 100644 drivers/pci/pcie_plda_common.c
 create mode 100644 drivers/pci/pcie_plda_common.h
 create mode 100644 drivers/pci/pcie_starfive_jh7110.c


base-commit: 41a88ad529b3943b1e465846eb24fe2c29203e35
-- 
2.17.1