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To enable USB controller with restricted DMA access range to work correctly, add a simple-bus to constrain the dma address. Note: This changes the USB controller compatible string from "fsl,imx95-dwc3" to "nxp,imx95-dwc3". This requires a kernel with CONFIG_USB_DWC3_IMX enabled; otherwise, the new DTB will not be compatible with older one. As i.MX95 is a new SoC and is still under development, it's acceptable at development early phase. Signed-off-by: Xu Yang --- Changes in v2: - add note in the commit message --- arch/arm64/boot/dts/freescale/imx95.dtsi | 48 ++++++++++++------------ 1 file changed, 24 insertions(+), 24 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi index 71394871d8dd..80f935af5b49 100644 --- a/arch/arm64/boot/dts/freescale/imx95.dtsi +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi @@ -1772,45 +1772,45 @@ smmu: iommu@490d0000 { }; }; - usb3: usb@4c010010 { - compatible = "fsl,imx95-dwc3", "fsl,imx8mp-dwc3"; - reg = <0x0 0x4c010010 0x0 0x04>, - <0x0 0x4c1f0000 0x0 0x20>; - clocks = <&scmi_clk IMX95_CLK_HSIO>, - <&scmi_clk IMX95_CLK_32K>; - clock-names = "hsio", "suspend"; - interrupts = ; + hsio_blk_ctl: syscon@4c0100c0 { + compatible = "nxp,imx95-hsio-blk-ctl", "syscon"; + reg = <0x0 0x4c0100c0 0x0 0x1>; + #clock-cells = <1>; + clocks = <&clk_sys100m>; + power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>; + }; + + bus@4c100000 { + compatible = "simple-bus"; #address-cells = <2>; #size-cells = <2>; - ranges; - power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>; dma-ranges = <0x0 0x0 0x0 0x0 0x10 0x0>; - status = "disabled"; + ranges; - usb3_dwc3: usb@4c100000 { - compatible = "snps,dwc3"; - reg = <0x0 0x4c100000 0x0 0x10000>; + usb3: usb3_dwc3: usb@4c100000 { + compatible = "nxp,imx95-dwc3", "nxp,imx8mp-dwc3"; + reg = <0x0 0x4c100000 0x0 0x10000>, + <0x0 0x4c010010 0x0 0x04>, + <0x0 0x4c1f0000 0x0 0x20>; + reg-names = "core", "blkctl", "glue"; clocks = <&scmi_clk IMX95_CLK_HSIO>, + <&scmi_clk IMX95_CLK_HSIO>, <&scmi_clk IMX95_CLK_24M>, <&scmi_clk IMX95_CLK_32K>; - clock-names = "bus_early", "ref", "suspend"; - interrupts = ; + clock-names = "hsio", "bus_early", "ref", "suspend"; + interrupts = , + ; + interrupt-names = "dwc_usb3", "wakeup"; + power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>; phys = <&usb3_phy>, <&usb3_phy>; phy-names = "usb2-phy", "usb3-phy"; snps,gfladj-refclk-lpm-sel-quirk; snps,parkmode-disable-ss-quirk; iommus = <&smmu 0xe>; + status = "disabled"; }; }; - hsio_blk_ctl: syscon@4c0100c0 { - compatible = "nxp,imx95-hsio-blk-ctl", "syscon"; - reg = <0x0 0x4c0100c0 0x0 0x1>; - #clock-cells = <1>; - clocks = <&clk_sys100m>; - power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>; - }; - usb3_phy: phy@4c1f0040 { compatible = "fsl,imx95-usb-phy", "fsl,imx8mp-usb-phy"; reg = <0x0 0x4c1f0040 0x0 0x40>, -- 2.34.1