Baijie Helper A133 board is a development board around Baijie A133 Core
SBC. Features:

- 1/2/4GiB LPDDR4 DRAM
- 8/16/32GiB eMMC
- AXP707 PMIC
- USB-C OTG port in peripheral mode (via onboard hub)
- 2 USB 2.0 ports
- MicroSD slot and on-board eMMC module
- Gigabit Ethernet
- Bluetooth
- WiFi

Add initial support for both the Helper and Core boards, including UART,
PMU, eMMC, USB, Ethernet, LRADC-connected buttons.

UART1 can only be used for Bluetooth module, but BT-WiFi combo Allwinner
AW869A chip has not mainline driver currently.

Link: https://szbaijie.com/index/product/product_detail.html?product_id=23&language=en

Changelog:
v3:
- added lradc node to sun50i-a100.dtsi
- enabled LRADC driver in arm64 defconfig
- added my copyrights into the newly introduced DTs
- all DT nodes sorted alphabetically
- all always-on regulators commented/propetly named
- all regulators got proper voltages (not default ranges)
- ADC-sensed buttons K1..K5 added
- re-labelled "eth_phy" -> "rgmii_phy"
- usbphy 0 switched from host into peripheral mode (downstream from an
  onboard hub)
- typo sun50i-a133-baije-core.dtsi -> sun50i-a133-baijie-core.dtsi
v2:
- introduced baijie,helper-a133-core compatible for the Core (SoM) board
- https://lore.kernel.org/all/20260510201644.4143710-1-alexander.sverdlin@gmail.com/
v1:
- https://lore.kernel.org/all/20260503191842.2736130-1-alexander.sverdlin@gmail.com/


Alexander Sverdlin (5):
  dt-bindings: vendor-prefixes: Add Shenzhen Baijie Technology Co., Ltd.
  dt-bindings: arm: sunxi: Add Baijie HelperBoard A133 compatible
  arm64: dts: allwinner: a100: Add LRADC node
  arm64: dts: allwinner: A133: add support for Baijie Helper A133 board
  arm64: defconfig: Enable Allwinner LRADC input driver

 .../devicetree/bindings/arm/sunxi.yaml        |   6 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 arch/arm64/boot/dts/allwinner/Makefile        |   1 +
 .../arm64/boot/dts/allwinner/sun50i-a100.dtsi |   9 +
 .../allwinner/sun50i-a133-baijie-core.dtsi    | 190 ++++++++++++++++++
 .../allwinner/sun50i-a133-baijie-helper.dts   | 133 ++++++++++++
 arch/arm64/configs/defconfig                  |   1 +
 7 files changed, 342 insertions(+)
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a133-baijie-core.dtsi
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a133-baijie-helper.dts

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2.54.0