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Message-ID: <20210616100704.GH22530@pengutronix.de>
Date: Wed, 16 Jun 2021 12:07:04 +0200
From: Michael Tretter <m.tretter@...gutronix.de>
To: Michal Simek <michal.simek@...inx.com>
Cc: linux-kernel@...r.kernel.org, monstr@...str.eu, git@...inx.com,
Viresh Kumar <viresh.kumar@...aro.org>,
Amit Kumar Mahapatra <amit.kumar-mahapatra@...inx.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Quanyang Wang <quanyang.wang@...driver.com>,
Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de
Subject: Re: [PATCH v2 31/33] arm64: zynqmp: Enable xlnx, zynqmp-dwc3 driver
for xilinx boards
On Mon, 14 Jun 2021 17:25:39 +0200, Michal Simek wrote:
> The commit 84770f028fab ("usb: dwc3: Add driver for Xilinx platforms")
> finally add proper support for Xilinx dwc3 driver. This patch is adding DT
> description for it.
>
> Signed-off-by: Michal Simek <michal.simek@...inx.com>
> ---
>
> Changes in v2:
> - New patch in the series
>
> .../dts/xilinx/zynqmp-zc1751-xm015-dc1.dts | 6 ++
> .../dts/xilinx/zynqmp-zc1751-xm016-dc2.dts | 7 ++
> .../dts/xilinx/zynqmp-zc1751-xm017-dc3.dts | 14 ++++
> .../boot/dts/xilinx/zynqmp-zcu100-revC.dts | 10 +++
> .../boot/dts/xilinx/zynqmp-zcu102-revA.dts | 6 ++
> .../boot/dts/xilinx/zynqmp-zcu104-revA.dts | 6 ++
> .../boot/dts/xilinx/zynqmp-zcu104-revC.dts | 6 ++
> .../boot/dts/xilinx/zynqmp-zcu106-revA.dts | 6 ++
> .../boot/dts/xilinx/zynqmp-zcu111-revA.dts | 6 ++
> arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 70 +++++++++++++++----
> 10 files changed, 124 insertions(+), 13 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm015-dc1.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm015-dc1.dts
> index d78439e891b9..c1cedc92e017 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm015-dc1.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm015-dc1.dts
> @@ -27,6 +27,7 @@ aliases {
> rtc0 = &rtc;
> serial0 = &uart0;
> spi0 = &qspi;
> + usb0 = &usb0;
> };
>
> chosen {
> @@ -404,7 +405,12 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
> maximum-speed = "super-speed";
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts
> index cd61550c52e5..938b76bd0527 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm016-dc2.dts
> @@ -26,6 +26,7 @@ aliases {
> serial1 = &uart1;
> spi0 = &spi0;
> spi1 = &spi1;
> + usb0 = &usb1;
> };
>
> chosen {
> @@ -479,7 +480,13 @@ &usb1 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb1_default>;
> +};
> +
> +&dwc3_1 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> + maximum-speed = "super-speed";
> };
>
> &uart0 {
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm017-dc3.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm017-dc3.dts
> index ba7f1f21c579..4394ec3b6a23 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm017-dc3.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zc1751-xm017-dc3.dts
> @@ -24,6 +24,8 @@ aliases {
> rtc0 = &rtc;
> serial0 = &uart0;
> serial1 = &uart1;
> + usb0 = &usb0;
> + usb1 = &usb1;
> };
>
> chosen {
> @@ -147,11 +149,23 @@ &uart1 {
>
> &usb0 {
> status = "okay";
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> + maximum-speed = "super-speed";
> };
>
> /* ULPI SMSC USB3320 */
> &usb1 {
> status = "okay";
> +};
> +
> +&dwc3_1 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> + maximum-speed = "super-speed";
> };
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
> index 80415e202814..6d32bfac48b5 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
> @@ -30,6 +30,8 @@ aliases {
> serial2 = &dcc;
> spi0 = &spi0;
> spi1 = &spi1;
> + usb0 = &usb0;
> + usb1 = &usb1;
> mmc0 = &sdhci0;
> mmc1 = &sdhci1;
> };
> @@ -537,6 +539,10 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "peripheral";
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 0>;
> @@ -548,6 +554,10 @@ &usb1 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb1_default>;
> +};
> +
> +&dwc3_1 {
> + status = "okay";
> dr_mode = "host";
> phy-names = "usb3-phy";
> phys = <&psgtr 3 PHY_TYPE_USB3 1 0>;
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
> index becfc23a5610..b17677378ab5 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
> @@ -31,6 +31,7 @@ aliases {
> serial1 = &uart1;
> serial2 = &dcc;
> spi0 = &qspi;
> + usb0 = &usb0;
> };
>
> chosen {
> @@ -998,7 +999,12 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
> maximum-speed = "super-speed";
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
> index 86fff3632c7d..fb7a9f7907d9 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
> @@ -29,6 +29,7 @@ aliases {
> serial1 = &uart1;
> serial2 = &dcc;
> spi0 = &qspi;
> + usb0 = &usb0;
> };
>
> chosen {
> @@ -481,7 +482,12 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
> maximum-speed = "super-speed";
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
> index 2a872d439804..afc9b200a59b 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
> @@ -29,6 +29,7 @@ aliases {
> serial1 = &uart1;
> serial2 = &dcc;
> spi0 = &qspi;
> + usb0 = &usb0;
> };
>
> chosen {
> @@ -493,7 +494,12 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
> maximum-speed = "super-speed";
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
> index d2219373580a..793740cbd791 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
> @@ -31,6 +31,7 @@ aliases {
> serial1 = &uart1;
> serial2 = &dcc;
> spi0 = &qspi;
> + usb0 = &usb0;
> };
>
> chosen {
> @@ -991,7 +992,12 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
> maximum-speed = "super-speed";
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu111-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu111-revA.dts
> index dac5ba67a160..a245250970c8 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu111-revA.dts
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu111-revA.dts
> @@ -30,6 +30,7 @@ aliases {
> serial0 = &uart0;
> serial1 = &dcc;
> spi0 = &qspi;
> + usb0 = &usb0;
> };
>
> chosen {
> @@ -828,7 +829,12 @@ &usb0 {
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_usb0_default>;
> +};
> +
> +&dwc3_0 {
> + status = "okay";
> dr_mode = "host";
> + snps,usb3_lpm_capable;
> phy-names = "usb3-phy";
> phys = <&psgtr 2 PHY_TYPE_USB3 0 2>;
> maximum-speed = "super-speed";
> diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> index 6f0fcec28ae2..731b2d170344 100644
> --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> @@ -2,7 +2,7 @@
> /*
> * dts file for Xilinx ZynqMP
> *
> - * (C) Copyright 2014 - 2019, Xilinx, Inc.
> + * (C) Copyright 2014 - 2021, Xilinx, Inc.
> *
> * Michal Simek <michal.simek@...inx.com>
> *
> @@ -805,24 +805,68 @@ uart1: serial@...10000 {
> power-domains = <&zynqmp_firmware PD_UART_1>;
> };
>
> - usb0: usb@...00000 {
> - compatible = "snps,dwc3";
> + usb0: usb0@...d0000 {
usb@...d0000
> + #address-cells = <2>;
> + #size-cells = <2>;
> status = "disabled";
> - interrupt-parent = <&gic>;
> - interrupts = <0 65 4>;
> - reg = <0x0 0xfe200000 0x0 0x40000>;
> - clock-names = "clk_xin", "clk_ahb";
> + compatible = "xlnx,zynqmp-dwc3";
> + reg = <0x0 0xff9d0000 0x0 0x100>;
> + clock-names = "bus_clk", "ref_clk";
> power-domains = <&zynqmp_firmware PD_USB_0>;
> + resets = <&zynqmp_reset ZYNQMP_RESET_USB0_CORERESET>,
> + <&zynqmp_reset ZYNQMP_RESET_USB0_HIBERRESET>,
> + <&zynqmp_reset ZYNQMP_RESET_USB0_APB>;
> + reset-names = "usb_crst", "usb_hibrst", "usb_apbrst";
> + ranges;
> +
> + dwc3_0: usb@...00000 {
> + compatible = "snps,dwc3";
> + status = "disabled";
I think it would be better to drop the status from dwc3_0, since it is a child
node of the already disabled usb0 node. With the current change, the board dts
has to enable usb0 and dwc3_0 to enable usb support, which is kind of
unexpected.
> + reg = <0x0 0xfe200000 0x0 0x40000>;
> + interrupt-parent = <&gic>;
> + interrupt-names = "dwc_usb3", "otg";
> + interrupts = <0 65 4>, <0 69 4>;
> + #stream-id-cells = <1>;
> + iommus = <&smmu 0x860>;
> + snps,quirk-frame-length-adjustment = <0x20>;
> + snps,refclk_fladj;
> + snps,enable_guctl1_resume_quirk;
> + snps,enable_guctl1_ipd_quirk;
> + snps,xhci-stream-quirk;
The last four properties for snps are not documented (and not used by the
driver).
> + /* dma-coherent; */
> + };
> };
>
> - usb1: usb@...00000 {
> - compatible = "snps,dwc3";
> + usb1: usb1@...e0000 {
usb@...e00000
> + #address-cells = <2>;
> + #size-cells = <2>;
> status = "disabled";
> - interrupt-parent = <&gic>;
> - interrupts = <0 70 4>;
> - reg = <0x0 0xfe300000 0x0 0x40000>;
> - clock-names = "clk_xin", "clk_ahb";
> + compatible = "xlnx,zynqmp-dwc3";
> + reg = <0x0 0xff9e0000 0x0 0x100>;
> + clock-names = "bus_clk", "ref_clk";
> power-domains = <&zynqmp_firmware PD_USB_1>;
> + resets = <&zynqmp_reset ZYNQMP_RESET_USB1_CORERESET>,
> + <&zynqmp_reset ZYNQMP_RESET_USB1_HIBERRESET>,
> + <&zynqmp_reset ZYNQMP_RESET_USB1_APB>;
> + reset-names = "usb_crst", "usb_hibrst", "usb_apbrst";
> + ranges;
> +
> + dwc3_1: usb@...00000 {
> + compatible = "snps,dwc3";
> + status = "disabled";
Same as above.
> + reg = <0x0 0xfe300000 0x0 0x40000>;
> + interrupt-parent = <&gic>;
> + interrupt-names = "dwc_usb3", "otg";
> + interrupts = <0 70 4>, <0 74 4>;
> + #stream-id-cells = <1>;
> + iommus = <&smmu 0x861>;
> + snps,quirk-frame-length-adjustment = <0x20>;
> + snps,refclk_fladj;
> + snps,enable_guctl1_resume_quirk;
> + snps,enable_guctl1_ipd_quirk;
> + snps,xhci-stream-quirk;
Same as above.
Thanks,
Michael
> + /* dma-coherent; */
> + };
> };
>
> watchdog0: watchdog@...d0000 {
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