linux-kernel - [PATCH v2 0/4] Initial support for CTCISZ Forever Pi

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Message-ID: <20250518080356.43885-1-ziyao@disroot.org>
Date: Sun, 18 May 2025 08:03:52 +0000
From: Yao Zi <ziyao@...root.org>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>,
	WANG Xuerui <kernel@...0n.name>,
	Yao Zi <ziyao@...root.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Junhao Xie <bigfoot@...ssfun.cn>,
	Rafał Miłecki <rafal@...ecki.pl>,
	Aradhya Bhatia <a-bhatia1@...com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Binbin Zhou <zhoubinbin@...ngson.cn>
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev,
	Mingcong Bai <jeffbai@...c.io>,
	Kexy Biscuit <kexybiscuit@...c.io>
Subject: [PATCH v2 0/4] Initial support for CTCISZ Forever Pi

This series adds support for CTCISZ Forever Pi, which ships an Loongson
2K0300 SoC and various peripherals. The vendor prefix and the board are
documented and basic SoC/board devicetrees are added.

I've successfully booted into console with vendor U-Boot, a bootlog
could be obtained here[1]. DTB and initramfs must be built into the
kernel as the vendor bootloader cannot pass them and upstream U-Boot
support for LoongArch is still WIP.

Thanks for your time and review.

[1]: https://gist.github.com/ziyao233/54ef900406876b5554f627d1ba0e130e

Changed from v1 ("Initial support for CTCISZ Ninenine Pi")
- Board binding:
  - Use "Forever Pi" instead of "Ninenine Pi" as translation of the
    board model
- SoC devicetree:
  - Move UART aliases to the board dt
  - Add the missing space in definition of liointc0
- Link to v1: https://lore.kernel.org/all/20250501044239.9404-2-ziyao@disroot.org/

Yao Zi (4):
  dt-bindings: vendor-prefixes: Add CTCISZ Technology Co., LTD.
  dt-bindings: LoongArch: Add CTCISZ Forever Pi
  LoongArch: dts: Add initial SoC devicetree for Loongson 2K0300
  LoongArch: dts: Add initial devicetree for CTCISZ Forever Pi

 .../bindings/loongarch/loongson.yaml          |   5 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 arch/loongarch/boot/dts/Makefile              |   1 +
 arch/loongarch/boot/dts/loongson-2k0300.dtsi  | 184 ++++++++++++++++++
 .../boot/dts/ls2k0300-ctcisz-forever-pi.dts   |  45 +++++
 5 files changed, 237 insertions(+)
 create mode 100644 arch/loongarch/boot/dts/loongson-2k0300.dtsi
 create mode 100644 arch/loongarch/boot/dts/ls2k0300-ctcisz-forever-pi.dts

-- 
2.49.0