[PATCH v3 0/5] Add initial Milk-V Duo S board support

From: Joshua Milas <josh.milas@gmail.com>
To: tglx@linutronix.de, robh@kernel.org, krzk+dt@kernel.org,
	conor+dt@kernel.org, unicorn_wang@outlook.com,
	inochiama@gmail.com, paul.walmsley@sifive.com,
	samuel.holland@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, alex@ghiti.fr,
	alexander.sverdlin@gmail.com, rabenda.cn@gmail.com,
	thomas.bonnefille@bootlin.com, chao.wei@sophgo.com,
	liujingqi@lanxincomputing.com
Cc: josh.milas@gmail.com, devicetree@vger.kernel.org,
	sophgo@lists.linux.dev, linux-riscv@lists.infradead.org
Subject: [PATCH v3 0/5] Add initial Milk-V Duo S board support
Date: Tue, 28 Oct 2025 20:10:47 -0400	[thread overview]
Message-ID: <20251029001052.36774-1-josh.milas@gmail.com> (raw)

This adds an initial device tree for the Milk-V Duo S board
with support for reading from the SD card and network over
Ethernet. This is continued work from Michael Opdenacker's
v6 series [1] on the ARM64 and RISCV side. It has been
tested with ARM64 and RISCV64 to boot from an SD card, have
networking, and read I2C slave devices over i2c4.

v3
- Added sg2000 interrupt controller and timer to documentation
- Added sg2000.dtsi for RISCV and moved DTS over to use it
- remove devices from DTS's to match what is available in the
  default pinmux config. spi0-2, i2c0-3, uart1-4
- Added i2c4 and spi3 aliases

v2: http
s://lore.kernel.org/sophgo/20251011014811.28521-1-josh.milas@gmail.com/
- Made new entry in docs to avoid DTC error
- "Milk-V DuoS" -> "Milk-V Duo S"
- Sorting of aliases
- Added uart*, emmc, mdio, gmac0, i2c*, spi*, dmac, saradc
  to device tree matching what is available on the pinout [2]
- Added riscv device tree

v1: https://lore.kernel.org/sophgo/20250927173619.89768-1-josh.milas@gmail.com/

Link: https://lore.kernel.org/linux-riscv/20240421055710.143617-1-michael.opdenacker@bootlin.com/ [1]
Link: https://milkv.io/duo-s/duos-pinout.webp [2]

Joshua Milas (5):
  dt-bindings: soc: sophgo: add Milk-V Duo S board compatibles
  arm64: dts: sophgo: add initial Milk-V Duo S board support
  dt-bindings: soc: sophgo: add sg2000 plic and clint documentation
  riscv64: dts: sophgo: add SG2000 dtsi
  riscv64: dts: sophgo: add initial Milk-V Duo S board support

 .../sifive,plic-1.0.0.yaml                    |  1 +
 .../bindings/soc/sophgo/sophgo.yaml           |  4 +
 .../bindings/timer/sifive,clint.yaml          |  1 +
 arch/arm64/boot/dts/sophgo/Makefile           |  1 +
 .../boot/dts/sophgo/sg2000-milkv-duo-s.dts    | 80 +++++++++++++++++++
 arch/riscv/boot/dts/sophgo/Makefile           |  1 +
 .../boot/dts/sophgo/sg2000-milkv-duo-s.dts    | 80 +++++++++++++++++++
 arch/riscv/boot/dts/sophgo/sg2000.dtsi        | 53 ++++++++++++
 8 files changed, 221 insertions(+)
 create mode 100644 arch/arm64/boot/dts/sophgo/sg2000-milkv-duo-s.dts
 create mode 100644 arch/riscv/boot/dts/sophgo/sg2000-milkv-duo-s.dts
 create mode 100644 arch/riscv/boot/dts/sophgo/sg2000.dtsi

base-commit: 0251a1deaec78252cb311fc8305d3670bc5eee0e
-- 
2.51.1

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