On Wed, Oct 16, 2024 at 10:38:52AM +0200, Alexander Stein wrote:
> Hello,
>
> Am Dienstag, 15. Oktober 2024, 13:10:17 CEST schrieb Xu Yang:
> > Add usb3 phy and controller nodes for imx95.
> >
> > Signed-off-by: Xu Yang <xu.yang_2@xxxxxxx>
> >
> > ---
> > Changes in v2:
> > - no changes
> > Changes in v3:
> > - no changes
> > Changes in v4:
> > - reorder nodes
> > Changes in v5:
> > - no changes
> > Changes in v6:
> > - rebase to latest
> > Changes in v7:
> > - no changes
> > Changes in v8:
> > - no changes
> > ---
> > arch/arm64/boot/dts/freescale/imx95.dtsi | 43 ++++++++++++++++++++++++
> > 1 file changed, 43 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
> > index 03661e76550f..e3faa8462759 100644
> > --- a/arch/arm64/boot/dts/freescale/imx95.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
> > @@ -1473,6 +1473,49 @@ 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 = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
> > + #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";
> > +
> > + usb3_dwc3: usb@4c100000 {
> > + compatible = "snps,dwc3";
> > + reg = <0x0 0x4c100000 0x0 0x10000>;
> > + clocks = <&scmi_clk IMX95_CLK_HSIO>,
> > + <&scmi_clk IMX95_CLK_24M>,
> > + <&scmi_clk IMX95_CLK_32K>;
> > + clock-names = "bus_early", "ref", "suspend";
> > + interrupts = <GIC_SPI 175 IRQ_TYPE_LEVEL_HIGH>;
> > + phys = <&usb3_phy>, <&usb3_phy>;
> > + phy-names = "usb2-phy", "usb3-phy";
> > + snps,gfladj-refclk-lpm-sel-quirk;
> > + snps,parkmode-disable-ss-quirk;
>
> Downstream kernel also configures
> > snps,tx-max-burst = /bits/ 8 <4>;
> > snps,tx-thr-num-pkt = /bits/ 8 <1>;
>
> is this not needed and omitted on purpose?
Yes, on purpose. The later newer soc doesn't need these properties.
Thanks,
Xu Yang
