linux-kernel - [PATCH v2 0/5] Add Bananapi R4 Pro support

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Message-ID: <20251105195007.199229-1-linux@fw-web.de>
Date: Wed,  5 Nov 2025 20:50:00 +0100
From: Frank Wunderlich <linux@...web.de>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
	Sean Wang <sean.wang@...iatek.com>,
	Daniel Golle <daniel@...rotopia.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 0/5] Add Bananapi R4 Pro support

From: Frank Wunderlich <frank-w@...lic-files.de>

BananaPi R4 Pro is a MT7988A based board which exists in 2 different
hardware versions:

- 4E: 4 GB RAM and using internal 2.5G Phy for WAN-Combo
- 8X: 8 GB RAM and 2x Aeonsemi AS21010P 10G phys

common parts:

- MediaTek MT7988A Quad-core Arm Corex-A73,1.8GHz processor
- 8GB eMMC flash
- 256MB SPI-NAND Flash
- Micro SD card slot
- 1x 10G SFP+ WAN
- 1x 10G SFP+ LAN
- 4x 2.5G RJ45 LAN (MxL86252C)
- 1x 1G RJ45 LAN (MT7988 internal switch)
- 2x miniPCIe slots with PCIe3.0 2lane interface for Wi-Fi NIC
- 2x M.2 M-KEY slots with PCIe3.0 1lane interface for NVME SSD
- 3x M.2 B-KEY slots with USB3.2 for 5G Module (PCIe shared with key-m)
- 1x USB3.2 slot
- 1x USB2.0 slot
- 1x USB TypeC Debug Console
- 2x13 PIN Header for expanding application

official product information:
https://docs.banana-pi.org/en/BPI-R4_Pro/BananaPi_BPI-R4_Pro

The PCIe is per default in key-m state and can be changed to key-b with
the pcie-overlays.

changes:
v2:
- dropped "dt-bindings: arm: mediatek: add BPI-R4 Pro board" which was
  applied from v1
- added new patch "disable 2.5G phy and enable at board layer"
- squashed "mt7988a: Add label for ssusb0" to r4pro dts commit
- some updates after angelos review to the r4pro dts commit
  - fixed buck4 and ldo displayed voltage (cannot be controlled by software)
    to match schematic
  - reorder fan after eth node (alphanumeric)
  - reorder spi-tx after spi-rx (alphanumeric)
  - follow reg first, then others also for spi-nand partitions
  - drop 2pg5 phy disabling node (due to new patch disabling by default)
  - change order of pinctrl (first number than names)
  - fix commit prefix (mediatek was missing)

Frank Wunderlich (5):
  dt-bindings: pinctrl: mt7988: allow gpio-hogs
  arm64: dts: mediatek: mt7988: disable 2.5G phy and enable at board
    layer
  arm64: dts: mediatek: mt7988: Add devicetree for BananaPi R4 Pro
  arm64: dts: mediatek: mt7988a-bpi-r4-pro: add PCIe overlays
  arm64: dts: mediatek: mt7988a-bpi-r4pro: Add mmc overlays

 .../pinctrl/mediatek,mt7988-pinctrl.yaml      |   5 +
 arch/arm64/boot/dts/mediatek/Makefile         |   8 +
 .../mediatek/mt7988a-bananapi-bpi-r4-2g5.dts  |   1 +
 .../mt7988a-bananapi-bpi-r4-pro-4e.dts        |  16 +
 .../mt7988a-bananapi-bpi-r4-pro-8x.dts        |  16 +
 .../mt7988a-bananapi-bpi-r4-pro-cn15.dtso     |  20 +
 .../mt7988a-bananapi-bpi-r4-pro-cn18.dtso     |  20 +
 .../mt7988a-bananapi-bpi-r4-pro-emmc.dtso     |  33 ++
 .../mt7988a-bananapi-bpi-r4-pro-sd.dtso       |  31 +
 .../mediatek/mt7988a-bananapi-bpi-r4-pro.dtsi | 534 ++++++++++++++++++
 arch/arm64/boot/dts/mediatek/mt7988a.dtsi     |   3 +-
 11 files changed, 686 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-4e.dts
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-8x.dts
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-cn15.dtso
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-cn18.dtso
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-emmc.dtso
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro-sd.dtso
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-pro.dtsi

-- 
2.43.0