Re: [PATCH v2 0/4] usb: dwc3: xilinx: Add Versal2 MMI USB 3.2 controller support
From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Date: 2026-04-01 23:04:41
Also in:
linux-devicetree, linux-usb, lkml
On Tue, Mar 31, 2026, Radhey Shyam Pandey wrote:
This series introduces support for the Multi-Media Integrated (MMI) USB 3.2 Dual-Role Device (DRD) controller on Xilinx Versal2 platforms. The controller supports SSP(10-Gbps), SuperSpeed, high-speed, full-speed and low-speed operation modes. USB2 and USB3 PHY support Physical connectivity via the Type-C connectivity. DWC3 wrapper IP IO space is in SLCR so reg is made optional. The driver is required for the clock, reset and platform specific initialization (coherency/TX_DEEMPH etc). In this initial version typec reversibility is not implemented and it is assumed that USB3 PHY TCA mux programming is done by MMI configuration data object (CDOs) and TI PD controller is configured using external tiva programmer on VEK385 evaluation board. Changes for v2: - DT binding: fix MHz spacing (SI convention), reorder description before $ref in xlnx,usb-syscon, restore zynqmp-dwc3 example and add versal2-mmi-dwc3 example, fix node name for no-reg case, use 1/1 address/size configuration and lowercase hex in syscon offsets. - Split config struct refactoring (device_get_match_data,dwc3_xlnx_config) into a separate preparatory patch. - Fix error message capitalization to lowercase per kernel convention. - Rename property snps,lcsr_tx_deemph to snps,lcsr-tx-deemph (hyphens). - Fix double space in comment and missing blank line in core.h. - Use platform data instead of of_device_is_compatible() check for deemphasis support. Link: https://urldefense.com/v3/__https://lore.kernel.org/all/20251119193036.2666877-1-radhey.shyam.pandey@amd.com/__;!!A4F2R9G_pg!YSeyY-bpQrMLqswAc1cWND5CSHvGFygPGMEMpR9amrRMnRFjYrFZktzbLzEzVZcQmOW34IUAfwRKHwy7B8p_ciUorWGJsA$ Radhey Shyam Pandey (4): dt-bindings: usb: dwc3-xilinx: Add MMI USB support on Versal Gen2 platform usb: dwc3: xilinx: Introduce dwc3_xlnx_config for per-platform data usb: dwc3: xilinx: Add Versal2 MMI USB 3.2 controller support usb: dwc3: xilinx: Add support to program MMI USB TX deemphasis .../devicetree/bindings/usb/dwc3-xilinx.yaml | 70 ++++++++++++++- drivers/usb/dwc3/core.c | 17 ++++ drivers/usb/dwc3/core.h | 8 ++ drivers/usb/dwc3/dwc3-xilinx.c | 89 +++++++++++++++---- 4 files changed, 166 insertions(+), 18 deletions(-) base-commit: 46b513250491a7bfc97d98791dbe6a10bcc8129d -- 2.43.0
Hi Radhey, Do you have plans to convert dwc3-xilinx to using the new flatten model? The change you have here fits better for the new glue model. BR, Thinh