[PATCH v4 4/4] arm64: dts: imx8mp: Add memory for USB3 glue layer to usb3 nodes

[Jun Li]

> -----Original Message-----
> From: Alexander Stein <alexander.stein at ew.tq-group.com>
> Sent: Wednesday, January 26, 2022 10:14 PM
> To: Greg Kroah-Hartman <gregkh at linuxfoundation.org>; Rob Herring
> <robh+dt at kernel.org>; Shawn Guo <shawnguo at kernel.org>; Sascha Hauer
> <s.hauer at pengutronix.de>; Fabio Estevam <festevam at gmail.com>
> Cc: Alexander Stein <alexander.stein at ew.tq-group.com>; dl-linux-imx
> <linux-imx at nxp.com>; linux-usb at vger.kernel.org;
> devicetree at vger.kernel.org; linux-arm-kernel at lists.infradead.org; Jun Li
> <jun.li at nxp.com>
> Subject: [PATCH v4 4/4] arm64: dts: imx8mp: Add memory for USB3 glue layer
> to usb3 nodes
> 
> The USB3 glue layer has 2 areas in the register set, see RM Rev.1 section
> 11.2.5.2.1 GLUE_usb3 memory map:
> * USB3 control/status
> * PHY control/status
> 
> Provide the memory area to the usb3 nodes for accessing the features in the
> USB3 control area.
> 
> Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>

Reviewed-by: Li Jun <jun.li at nxp.com>

> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index e61ac5f136ad..d4aadb434d36 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -1030,7 +1030,8 @@ usb3_phy0: usb-phy at 381f0040 {
> 
>  		usb3_0: usb at 32f10100 {
>  			compatible = "fsl,imx8mp-dwc3";
> -			reg = <0x32f10100 0x8>;
> +			reg = <0x32f10100 0x8>,
> +			      <0x381f0000 0x20>;
>  			clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
>  				 <&clk IMX8MP_CLK_USB_ROOT>;
>  			clock-names = "hsio", "suspend";
> @@ -1070,7 +1071,8 @@ usb3_phy1: usb-phy at 382f0040 {
> 
>  		usb3_1: usb at 32f10108 {
>  			compatible = "fsl,imx8mp-dwc3";
> -			reg = <0x32f10108 0x8>;
> +			reg = <0x32f10108 0x8>,
> +			      <0x382f0000 0x20>;
>  			clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
>  				 <&clk IMX8MP_CLK_USB_ROOT>;
>  			clock-names = "hsio", "suspend";
> --
> 2.25.1