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To enable USB > controllers with restricted DMA access range to work correctly, add a > pseudo simple-bus to constrain the dma address. This should not "pseudo", and bus is physical existed, which limited dma range since it transparent to SW, which may not mention in spec. > > Also reorder USB-related nodes. this need new patch to just do reorder. > > Signed-off-by: Xu Yang > --- > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 161 ++++++++++------------ > 1 file changed, 76 insertions(+), 85 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > index 90d7bb8f5619..8b3aab14ccf1 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi > @@ -2329,6 +2329,82 @@ gpu2d: gpu@38008000 { > power-domains = <&pgc_gpu2d>; > }; > > + bus@38100000 { > + compatible = "simple-bus"; > + #address-cells = <1>; > + #size-cells = <1>; > + dma-ranges = <0x40000000 0x40000000 0xc0000000>; > + ranges; > + > + usb3_0: usb_dwc3_0: usb@38100000 { > + compatible = "nxp,imx8mp-dwc3"; > + reg = <0x38100000 0x10000>, > + <0x32f10100 0x8>, > + <0x381f0000 0x20>; > + reg-names = "core", "blkctl", "glue"; > + clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, > + <&clk IMX8MP_CLK_USB_ROOT>, > + <&clk IMX8MP_CLK_USB_CORE_REF>, > + <&clk IMX8MP_CLK_USB_SUSP>; > + clock-names = "hsio", "bus_early", "ref", "suspend"; > + interrupts = , > + ; > + interrupt-names = "dwc_usb3", "wakeup"; > + power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB>; > + phys = <&usb3_phy0>, <&usb3_phy0>; > + phy-names = "usb2-phy", "usb3-phy"; > + snps,gfladj-refclk-lpm-sel-quirk; > + snps,parkmode-disable-ss-quirk; > + status = "disabled"; > + }; > + > + usb3_1: usb_dwc3_1: usb@38200000 { > + compatible = "nxp,imx8mp-dwc3"; > + reg = <0x38200000 0x10000>, > + <0x32f10108 0x8>, > + <0x382f0000 0x20>; > + reg-names = "core", "blkctl", "glue"; > + clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, > + <&clk IMX8MP_CLK_USB_ROOT>, > + <&clk IMX8MP_CLK_USB_CORE_REF>, > + <&clk IMX8MP_CLK_USB_SUSP>; > + clock-names = "hsio", "bus_early", "ref", "suspend"; > + interrupts = , > + ; > + interrupt-names = "dwc_usb3", "wakeup"; > + power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB>; > + phys = <&usb3_phy1>, <&usb3_phy1>; > + phy-names = "usb2-phy", "usb3-phy"; > + snps,gfladj-refclk-lpm-sel-quirk; > + snps,parkmode-disable-ss-quirk; > + status = "disabled"; > + }; > + }; > + > + usb3_phy0: usb-phy@381f0040 { > + compatible = "fsl,imx8mp-usb-phy"; > + reg = <0x381f0040 0x40>; > + clocks = <&clk IMX8MP_CLK_USB_PHY_ROOT>; > + clock-names = "phy"; > + assigned-clocks = <&clk IMX8MP_CLK_USB_PHY_REF>; > + assigned-clock-parents = <&clk IMX8MP_CLK_24M>; > + power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB_PHY1>; > + #phy-cells = <0>; > + status = "disabled"; > + }; > + > + usb3_phy1: usb-phy@382f0040 { > + compatible = "fsl,imx8mp-usb-phy"; > + reg = <0x382f0040 0x40>; > + clocks = <&clk IMX8MP_CLK_USB_PHY_ROOT>; > + clock-names = "phy"; > + assigned-clocks = <&clk IMX8MP_CLK_USB_PHY_REF>; > + assigned-clock-parents = <&clk IMX8MP_CLK_24M>; > + power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB_PHY2>; > + #phy-cells = <0>; > + status = "disabled"; > + }; > + > vpu_g1: video-codec@38300000 { > compatible = "nxp,imx8mm-vpu-g1"; > reg = <0x38300000 0x10000>; > @@ -2407,91 +2483,6 @@ ddr-pmu@3d800000 { > interrupts = ; > }; > > - usb3_phy0: usb-phy@381f0040 { > - compatible = "fsl,imx8mp-usb-phy"; > - reg = <0x381f0040 0x40>; > - clocks = <&clk IMX8MP_CLK_USB_PHY_ROOT>; > - clock-names = "phy"; > - assigned-clocks = <&clk IMX8MP_CLK_USB_PHY_REF>; > - assigned-clock-parents = <&clk IMX8MP_CLK_24M>; > - power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB_PHY1>; > - #phy-cells = <0>; > - status = "disabled"; > - }; > - > - usb3_0: usb@32f10100 { > - compatible = "fsl,imx8mp-dwc3"; Delete these will broken back compatible. You can delete later or descript impact judgement in commit message. Frank > - reg = <0x32f10100 0x8>, > - <0x381f0000 0x20>; > - clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, > - <&clk IMX8MP_CLK_USB_SUSP>; > - clock-names = "hsio", "suspend"; > - interrupts = ; > - power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB>; > - #address-cells = <1>; > - #size-cells = <1>; > - dma-ranges = <0x40000000 0x40000000 0xc0000000>; > - ranges; > - status = "disabled"; > - > - usb_dwc3_0: usb@38100000 { > - compatible = "snps,dwc3"; > - reg = <0x38100000 0x10000>; > - clocks = <&clk IMX8MP_CLK_USB_ROOT>, > - <&clk IMX8MP_CLK_USB_CORE_REF>, > - <&clk IMX8MP_CLK_USB_SUSP>; > - clock-names = "bus_early", "ref", "suspend"; > - interrupts = ; > - phys = <&usb3_phy0>, <&usb3_phy0>; > - phy-names = "usb2-phy", "usb3-phy"; > - snps,gfladj-refclk-lpm-sel-quirk; > - snps,parkmode-disable-ss-quirk; > - }; > - > - }; > - > - usb3_phy1: usb-phy@382f0040 { > - compatible = "fsl,imx8mp-usb-phy"; > - reg = <0x382f0040 0x40>; > - clocks = <&clk IMX8MP_CLK_USB_PHY_ROOT>; > - clock-names = "phy"; > - assigned-clocks = <&clk IMX8MP_CLK_USB_PHY_REF>; > - assigned-clock-parents = <&clk IMX8MP_CLK_24M>; > - power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB_PHY2>; > - #phy-cells = <0>; > - status = "disabled"; > - }; > - > - usb3_1: usb@32f10108 { > - compatible = "fsl,imx8mp-dwc3"; > - reg = <0x32f10108 0x8>, > - <0x382f0000 0x20>; > - clocks = <&clk IMX8MP_CLK_HSIO_ROOT>, > - <&clk IMX8MP_CLK_USB_SUSP>; > - clock-names = "hsio", "suspend"; > - interrupts = ; > - power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_USB>; > - #address-cells = <1>; > - #size-cells = <1>; > - dma-ranges = <0x40000000 0x40000000 0xc0000000>; > - ranges; > - status = "disabled"; > - > - usb_dwc3_1: usb@38200000 { > - compatible = "snps,dwc3"; > - reg = <0x38200000 0x10000>; > - clocks = <&clk IMX8MP_CLK_USB_ROOT>, > - <&clk IMX8MP_CLK_USB_CORE_REF>, > - <&clk IMX8MP_CLK_USB_SUSP>; > - clock-names = "bus_early", "ref", "suspend"; > - interrupts = ; > - phys = <&usb3_phy1>, <&usb3_phy1>; > - phy-names = "usb2-phy", "usb3-phy"; > - snps,gfladj-refclk-lpm-sel-quirk; > - snps,parkmode-disable-ss-quirk; > - }; > - }; > - > dsp: dsp@3b6e8000 { > compatible = "fsl,imx8mp-hifi4"; > reg = <0x3b6e8000 0x88000>; > -- > 2.34.1 >