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Furthermore, > modern AMD toolchains (Vivado Design Suite and Vitis) provide no support > for the legacy PLB (Processor Local Bus) architecture used by this core. > As a result, no new hardware designs can be built using this IP. > > Nothing in the upstream tree carries its "xlnx,xps-usb-host-1.00.a" > compatible string, no defconfig enables CONFIG_XPS_USB_HCD_XILINX, and > the compatible was never documented as a binding. > > It is also one of the few remaining users of the deprecated glue model > where the .c file is #included into ehci-hcd.c rather than built as its > own object. > > Given the complete obsolescence of the supporting hardware development > tools and the lack of upstream users, remove the dead driver. > > Signed-off-by: Radhey Shyam Pandey > --- > drivers/usb/host/Kconfig | 11 -- > drivers/usb/host/ehci-hcd.c | 7 - > drivers/usb/host/ehci-xilinx-of.c | 229 ------------------------------ > scripts/dtc/dt_to_config | 8 +- > 4 files changed, 2 insertions(+), 253 deletions(-) > delete mode 100644 drivers/usb/host/ehci-xilinx-of.c We discussed this in context of Documentation/devicetree/bindings/xilinx.txt but there should be one more patch which removes that one documented property from xilinx.txt here. It means please also send another patch which removes this part. I would suggest that this should be series of 2 patches. Where one removes driver itself and second this paragraph from xilinx.txt. This patch is file that's why feel free to add Reviewed-by: Michal Simek diff --git a/Documentation/devicetree/bindings/xilinx.txt b/Documentation/devicetree/bindings/xilinx.txt index a1a2cde7b7d8..5049af6ff4cf 100644 --- a/Documentation/devicetree/bindings/xilinx.txt +++ b/Documentation/devicetree/bindings/xilinx.txt @@ -29,15 +29,3 @@ - compatible : should contain "xlnx,xps-hwicap-1.00.a" or "xlnx,opb-hwicap-1.00.b". - vii) Xilinx USB Host controller - - The Xilinx USB host controller is EHCI compatible but with a different - base address for the EHCI registers, and it is always a big-endian - USB Host controller. The hardware can be configured as high speed only, - or high speed/full speed hybrid. - - Required properties: - - xlnx,support-usb-fs: A value 0 means the core is built as high speed - only. A value 1 means the core also supports - full speed devices. - Thanks, Michal