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charset="utf-8" Add a DTS node for the Synopsys DWC3 USB3.1 controller on the Agilex5 SoC. Place it under a simple-bus with a 40-bit dma-ranges window (#address-cells =3D 2) to match the USB DMA address width of the interconnect. Enable it in host mode on the SoCDK board. ref and suspend both use AGILEX5_USB31_SUSPEND_CLK because they share the same hardware clock source on this SoC. Signed-off-by: Adrian Ng Ho Yin --- changelog: v7->v8: * Rename simple-bus wrapper node from usb-bus@11000000 to bus@11000000 per Krzysztof Kozlowski review (use approved simple-bus node name). .../arm64/boot/dts/intel/socfpga_agilex5.dtsi | 35 +++++++++++++++++++ .../boot/dts/intel/socfpga_agilex5_socdk.dts | 5 +++ 2 files changed, 40 insertions(+) diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi b/arch/arm64/bo= ot/dts/intel/socfpga_agilex5.dtsi index f54767d1526e..63a8f8f0c5c3 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi +++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi @@ -493,6 +493,41 @@ usb0: usb@10b00000 { status =3D "disabled"; }; =20 + usb31_bus: bus@11000000 { + compatible =3D "simple-bus"; + #address-cells =3D <2>; + #size-cells =3D <2>; + ranges =3D <0x0 0x0 0x11000000 0x0 0x100000>; + /* + * USB interconnect DMA is limited to 40-bit addresses + * (1 TiB window from 0). + */ + dma-ranges =3D <0x0 0x0 0x0 0x100 0x0>; + + usb31: usb@0 { + compatible =3D "altr,agilex5-dwc3"; + reg =3D <0x0 0x0 0x0 0x100000>; + interrupts =3D ; + /* + * ref and suspend share the same hardware + * source; reuse the published suspend clock ID. + */ + clocks =3D <&clkmgr AGILEX5_USB31_BUS_CLK_EARLY>, + <&clkmgr AGILEX5_USB31_SUSPEND_CLK>, + <&clkmgr AGILEX5_USB31_SUSPEND_CLK>; + clock-names =3D "bus_early", "ref", "suspend"; + resets =3D <&rst USB1_RESET>, <&rst USB1_OCP_RESET>; + reset-names =3D "core", "ecc"; + iommus =3D <&smmu 7>; + phys =3D <&usbphy0>, <&usbphy0>; + phy-names =3D "usb2-phy", "usb3-phy"; + maximum-speed =3D "super-speed"; + snps,dis_u2_susphy_quirk; + snps,dis_u3_susphy_quirk; + status =3D "disabled"; + }; + }; + watchdog0: watchdog@10d00200 { compatible =3D "snps,dw-wdt"; reg =3D <0x10d00200 0x100>; diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts b/arch/arm= 64/boot/dts/intel/socfpga_agilex5_socdk.dts index 1e9b87d96765..aa9294494421 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts +++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts @@ -109,6 +109,11 @@ &usb0 { disable-over-current; 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charset="utf-8" The Agilex5 SoCDK daughter card only provides a USB3.1 interface (USB1). USB0 is not connected or used on this board. Remove the USB0 node to avoid unnecessary initialization and potential resource conflicts. Signed-off-by: Adrian Ng Ho Yin --- arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts b/arch/arm= 64/boot/dts/intel/socfpga_agilex5_socdk.dts index aa9294494421..c48867cc3043 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts +++ b/arch/arm64/boot/dts/intel/socfpga_agilex5_socdk.dts @@ -104,11 +104,6 @@ &uart0 { status =3D "okay"; }; =20 -&usb0 { - status =3D "okay"; - disable-over-current; -}; - &usb31 { dr_mode =3D "host"; status =3D "okay"; --=20 2.49.GIT