[PATCH v4 0/6] Add support for StarFive VisionFive 2 Lite board

[Hal Feng <hal.feng@starfivetech.com>]

VisionFive 2 Lite is a mini SBC based on the StarFive JH7110S industrial
SoC which can run at -40~85 degrees centigrade and up to 1.25GHz.

Board features:
- JH7110S SoC
- 4/8 GiB LPDDR4 DRAM
- AXP15060 PMIC
- 40 pin GPIO header
- 1x USB 3.0 host port
- 3x USB 2.0 host port
- 1x M.2 M-Key (size: 2242)
- 1x MicroSD slot (optional non-removable 64GiB eMMC)
- 1x QSPI Flash
- 1x I2C EEPROM
- 1x 1Gbps Ethernet port
- SDIO-based Wi-Fi & UART-based Bluetooth
- 1x HDMI port
- 1x 2-lane DSI
- 1x 2-lane CSI

VisionFive 2 Lite schematics: https://doc-en.rvspace.org/VisionFive2Lite/PDF/VF2_LITE_V1.10_TF_20250818_SCH.pdf
VisionFive 2 Lite Quick Start Guide: https://doc-en.rvspace.org/VisionFive2Lite/VisionFive2LiteQSG/index.html
More documents: https://doc-en.rvspace.org/Doc_Center/visionfive_2_lite.html

Changes since v3:
patch 1:
- Enable PCIe slot 3V3 power using regulator APIs instead of GPIO APIs.
patch 3: (reuse the dts structure implemented in v1)
- Add a new patch to move out the uncommon nodes in jh7110-common.dtsi.
- Include "jh7110-common.dtsi" instead of "jh7110.dtsi".
- Add the regulator-vcc-3v3-pcie node and reference it in the pcie1 node.
patch 3, 4, 5:
- Use "jh7110" instead of "jh7110s" as the device tree filename prefix.

Changes since v2:
- Drop patch 3, 4, 5.
patch 6:
- jh7110s-starfive-visionfive-2-lite.dtsi directly includes "jh7110.dtsi"
  instead of "jh7110s-common.dtsi".

Changes since v1:
- Drop patch 1 because it is applied.
- Rename jh7110.dtsi to jh711x.dtsi.
- Move the content of jh7110-common.dtsi to the new file
  jh711x-common.dtsi and move opp table to jh7110-common.dtsi.
patch 4:
- Move the uncommon nodes to jh7110-common.dtsi instead of board dts.
patch 5:
- Add jh7110s-common.dtsi and include it in jh7110s-starfive-visionfive-2-lite.dtsi.

Changes since RFC:
- Add jh7110s compatible to the generic cpufreq driver.
- Fix the dtbs_check error by adding the missing "enable-gpios" property
  in jh7110 pcie dt-bindings.
- Rebase on the latest mainline.
- Add VisionFive 2 Lite eMMC board device tree and add a common board dtsi
  for VisionFive 2 Lite variants.
- Add usb switch pin configuration (GPIO62).
- Improve the commit messages.

History:
v3: https://lore.kernel.org/all/20251120082946.109378-1-hal.feng@starfivetech.com/
v2: https://lore.kernel.org/all/20251107095530.114775-1-hal.feng@starfivetech.com/
v1: https://lore.kernel.org/all/20251016080054.12484-1-hal.feng@starfivetech.com/
RFC: https://lore.kernel.org/all/20250821100930.71404-1-hal.feng@starfivetech.com/

Hal Feng (6):
  PCI: starfive: Use regulator APIs instead of GPIO APIs to enable the
    3V3 power supply of PCIe slots
  dt-bindings: riscv: Add StarFive JH7110S SoC and VisionFive 2 Lite
    board
  riscv: dts: starfive: jh7110-common: Move out some nodes to the board
    dts
  riscv: dts: starfive: Add common board dtsi for VisionFive 2 Lite
    variants
  riscv: dts: starfive: Add VisionFive 2 Lite board device tree
  riscv: dts: starfive: Add VisionFive 2 Lite eMMC board device tree

 .../devicetree/bindings/riscv/starfive.yaml   |   6 +
 arch/riscv/boot/dts/starfive/Makefile         |   2 +
 .../boot/dts/starfive/jh7110-common.dtsi      |   8 -
 .../jh7110-deepcomputing-fml13v01.dts         |  14 ++
 .../boot/dts/starfive/jh7110-milkv-mars.dts   |  14 ++
 .../dts/starfive/jh7110-milkv-marscm-emmc.dts |   9 +
 .../dts/starfive/jh7110-milkv-marscm-lite.dts |   1 +
 .../dts/starfive/jh7110-pine64-star64.dts     |  14 ++
 ...jh7110-starfive-visionfive-2-lite-emmc.dts |  22 +++
 .../jh7110-starfive-visionfive-2-lite.dts     |  20 +++
 .../jh7110-starfive-visionfive-2-lite.dtsi    | 161 ++++++++++++++++++
 .../jh7110-starfive-visionfive-2.dtsi         |  11 ++
 drivers/pci/controller/plda/pcie-starfive.c   |  25 +--
 13 files changed, 289 insertions(+), 18 deletions(-)
 create mode 100644 arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-lite-emmc.dts
 create mode 100644 arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-lite.dts
 create mode 100644 arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2-lite.dtsi


base-commit: 422f3140bbcb657e1b86c484296972ab76f6d1ff
-- 
2.43.2