linux-kernel - [PATCH 0/2] Add SpacemiT K1 USB3.0 host controller support

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Message-Id: <20250428-b4-k1-dwc3-v2-v1-0-7cb061abd619@whut.edu.cn>
Date: Mon, 28 Apr 2025 15:38:10 +0800
From: Ze Huang <huangze@...t.edu.cn>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Yixun Lan <dlan@...too.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, Ze Huang <huangze@...t.edu.cn>
Subject: [PATCH 0/2] Add SpacemiT K1 USB3.0 host controller support

This patchset adds initial support for the USB 3.0 Dual-Role Device (DRD)
controller[1] found in the SpacemiT K1 SoC. The controller is based on Synopsys
DesignWare Core USB 3 (DWC3) IP, which already has mainline driver support.

The DWC3 controller on SpacemiT K1 supports both Host and Device modes for
USB 3.0 and USB 2.0, including High-Speed, Full-Speed, and Low-Speed operations.

The PHY interfaces required for the K1 USB subsystem, PIPE3 (for USB 3.0)
and UTMI+ (for USB 2.0) have already been supported in a previous patchset[2].

This patchset is based on 6.15-rc1. Tested on BananaPi and Jupiter board.

Link: https://developer.spacemit.com/documentation?token=AjHDwrW78igAAEkiHracBI9HnTb [1]
Link: https://lore.kernel.org/linux-riscv/20250418-b4-k1-usb3-phy-v2-v2-0-b69e02da84eb@whut.edu.cn [2]

Signed-off-by: Ze Huang <huangze@...t.edu.cn>
---
Changes in v2:
- dt-bindings:
  - add missing 'maxItems'
  - remove 'status' property in exmaple
  - fold dwc3 node into parent
- drop dwc3 glue driver and use snps,dwc3 driver directly
- rename dts nodes and reorder properties to fit coding style

---
Ze Huang (2):
      dt-bindings: usb: dwc3: add support for SpacemiT K1
      riscv: dts: spacemit: add usb3.0 support for K1

 .../devicetree/bindings/usb/spacemit,k1-dwc3.yaml  | 95 ++++++++++++++++++++++
 arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts    | 52 ++++++++++++
 arch/riscv/boot/dts/spacemit/k1.dtsi               | 56 +++++++++++++
 3 files changed, 203 insertions(+)
---
base-commit: 64e9fdfc89a76fed38d8ddeed72d42ec71957ed9
change-id: 20250428-b4-k1-dwc3-v2-519e84a1b2cb
prerequisite-message-id: <20250416135406.16284-1-heylenay@....org>
prerequisite-patch-id: 19b7f061557b184b9565e10ccfc0aab5754dfa73
prerequisite-patch-id: a56183c8b71a141ca6f5d401b67a5456f40d4a9c
prerequisite-patch-id: a4a3c44d4c3e44f5209bff2b2bd0b49cd5a9eebe
prerequisite-patch-id: 471fe02daa5297e85e9cee8dfef873375a348e9f
prerequisite-patch-id: 717bc3d50f0924f7697312cb78280b15a029ce2c
prerequisite-patch-id: 585a2a9ce37a5e2a036f7351ff8ff4ed859bbe3e
prerequisite-message-id: <20250418145401.2603648-1-elder@...cstar.com>
prerequisite-patch-id: a7769b6451bfd80d5e5366013753c5fc870b2255
prerequisite-patch-id: 8a8d0eefd0b4423d87f3c093b451a0fa60622ec4
prerequisite-patch-id: 30f92f93e5b3577bde61424303f21c709a715ec5
prerequisite-patch-id: d774b8281b5c6a822445365ee94925e1ab6c7a93
prerequisite-patch-id: 54a4f5d065eb9f212fd99efec6e7e06abbb9bad8
prerequisite-patch-id: 93962be60d1b58a98d947edf51b4af9edf513785
prerequisite-patch-id: 5f53f8bf16fb067628092daebc4831293261aa01
prerequisite-message-id: <CACRpkdZ6A0xORRQBnNNPFcNHg3xL=U3_xAcePmaDN3_ZYMzsaA@...l.gmail.com>
prerequisite-patch-id: a5d0181eb076c06b2147fb44a2400706bcad1ee3
prerequisite-patch-id: 59a37da7d2319858de1779e1b60e5362a102cf24
prerequisite-patch-id: a2fbaeda08eabbafcde1c9893dc82eddaef8f1b2
prerequisite-patch-id: f44247679d46a51c242703eca370ce0e3db2e61f
prerequisite-patch-id: 9d4cd8be42a37798815d0aaae21d3c022f815414

Best regards,
-- 
Ze Huang <huangze@...t.edu.cn>