[PATCH 0/3] usb: spacemit: k3: Add USB2.0 support
From: Yixun Lan
Date: Tue Mar 17 2026 - 07:58:13 EST
There is one USB2.0 host in K3 SoC which actually use DWC3 IP but only
provide USB2.0 functionality, and with only one USB2.0 PHY connected.
This series try to add USB2.0 support for SpacemiT K3 SoC, and also
enable it on Pico-ITX board. There is a run-time dependency on USB phy[1],
Hub[2] and reset[3] patches, but each series should be quite independent,
so I intend to not add prerequisite id for the dependency here.
For people who interested, I've collected all patches and put a complete
branch here[4].
Link: https://lore.kernel.org/r/20260305-11-k3-usb2-phy-v4-0-15554fb933bc@xxxxxxxxxx [1]
Link: https://lore.kernel.org/r/20260317-03-usb-hub-fe1-v1-0-71ec3989f5be@xxxxxxxxxx [2]
Link: https://lore.kernel.org/r/20260314-01-k3-reset-usb-pci-v2-1-9dc0976d524e@xxxxxxxxxx [3]
Link: https://github.com/spacemit-com/linux/tree/WIP/k3/usb2 [4]
Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx>
---
Yixun Lan (3):
dt-bindings: usb: dwc3: spacemit: add support for K3 SoC
usb: dwc3: dwc3-generic-plat: spacemit: add support for K3 SoC
riscv: dts: spacemit: k3: Add USB2.0 support
.../devicetree/bindings/usb/spacemit,k1-dwc3.yaml | 6 ++++-
arch/riscv/boot/dts/spacemit/k3-pico-itx.dts | 24 +++++++++++++++++
arch/riscv/boot/dts/spacemit/k3.dtsi | 31 ++++++++++++++++++++++
drivers/usb/dwc3/dwc3-generic-plat.c | 1 +
4 files changed, 61 insertions(+), 1 deletion(-)
---
base-commit: c4c6e209dcf903ada6ddb4a0baca01ce8459a379
change-id: 20260312-02-k3-usb20-support-9a1893655e9d
Best regards,
--
Yixun Lan <dlan@xxxxxxxxxx>