| Message ID | 20190916125022.10754-7-narmstrong@baylibre.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | ba1f8af7f772139607d46da3fc151a403f966f46 |
| Headers | show |
| Series | arm64: dts: meson-g12: add support for PCIe | expand |
On Mon, Sep 16, 2019 at 02:50:22PM +0200, Neil Armstrong wrote: > The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential > lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between > an USB3.0 Type A connector and a M.2 Key M slot. > The PHY driving these differential lines is shared between > the USB3.0 controller and the PCIe Controller, thus only > a single controller can use it. > > The needed DT configuration when the MCU is configured to mux > the PCIe/USB3.0 differential lines to the M.2 Key M slot is > added commented and may be uncommented to disable USB3.0 from the > USB Complex and enable the PCIe controller. > > The End User is not expected to uncomment the following except for > testing purposes, but instead rely on the firmware/bootloader to > update these nodes accordingly if PCIe mode is selected by the MCU. > > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com> > --- > .../amlogic/meson-g12b-a311d-khadas-vim3.dts | 25 +++++++++++++++++++ > .../amlogic/meson-g12b-s922x-khadas-vim3.dts | 25 +++++++++++++++++++ > .../boot/dts/amlogic/meson-khadas-vim3.dtsi | 4 +++ > .../dts/amlogic/meson-sm1-khadas-vim3l.dts | 25 +++++++++++++++++++ > 4 files changed, 79 insertions(+) > > diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts > index 3a6a1e0c1e32..124a80901084 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts > +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts > @@ -14,3 +14,28 @@ > / { > compatible = "khadas,vim3", "amlogic,a311d", "amlogic,g12b"; > }; > + > +/* > + * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential > + * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between > + * an USB3.0 Type A connector and a M.2 Key M slot. > + * The PHY driving these differential lines is shared between > + * the USB3.0 controller and the PCIe Controller, thus only > + * a single controller can use it. > + * If the MCU is configured to mux the PCIe/USB3.0 differential lines > + * to the M.2 Key M slot, uncomment the following block to disable > + * USB3.0 from the USB Complex and enable the PCIe controller. > + * The End User is not expected to uncomment the following except for > + * testing purposes, but instead rely on the firmware/bootloader to > + * update these nodes accordingly if PCIe mode is selected by the MCU. > + */ > +/* > +&pcie { > + status = "okay"; > +}; > + > +&usb { > + phys = <&usb2_phy0>, <&usb2_phy1>; > + phy-names = "usb2-phy0", "usb2-phy1"; > +}; > + */ > diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts > index b73deb282120..bba98f982ad6 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts > +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts > @@ -14,3 +14,28 @@ > / { > compatible = "khadas,vim3", "amlogic,s922x", "amlogic,g12b"; > }; > + > +/* > + * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential > + * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between > + * an USB3.0 Type A connector and a M.2 Key M slot. > + * The PHY driving these differential lines is shared between > + * the USB3.0 controller and the PCIe Controller, thus only > + * a single controller can use it. > + * If the MCU is configured to mux the PCIe/USB3.0 differential lines > + * to the M.2 Key M slot, uncomment the following block to disable > + * USB3.0 from the USB Complex and enable the PCIe controller. > + * The End User is not expected to uncomment the following except for > + * testing purposes, but instead rely on the firmware/bootloader to > + * update these nodes accordingly if PCIe mode is selected by the MCU. > + */ > +/* > +&pcie { > + status = "okay"; > +}; > + > +&usb { > + phys = <&usb2_phy0>, <&usb2_phy1>; > + phy-names = "usb2-phy0", "usb2-phy1"; > +}; > + */ > diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi > index 4fe7d33ebe8a..90815fa25ec6 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi > +++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi > @@ -246,6 +246,10 @@ > linux,rc-map-name = "rc-khadas"; > }; > > +&pcie { > + reset-gpios = <&gpio GPIOA_8 GPIO_ACTIVE_LOW>; > +}; > + > &pwm_ef { > status = "okay"; > pinctrl-0 = <&pwm_e_pins>; > diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts > index 5233bd7cacfb..dbbf29a0dbf6 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts > +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts > @@ -68,3 +68,28 @@ > clock-names = "clkin1"; > status = "okay"; > }; > + > +/* > + * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential > + * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between > + * an USB3.0 Type A connector and a M.2 Key M slot. > + * The PHY driving these differential lines is shared between > + * the USB3.0 controller and the PCIe Controller, thus only > + * a single controller can use it. > + * If the MCU is configured to mux the PCIe/USB3.0 differential lines > + * to the M.2 Key M slot, uncomment the following block to disable > + * USB3.0 from the USB Complex and enable the PCIe controller. > + * The End User is not expected to uncomment the following except for > + * testing purposes, but instead rely on the firmware/bootloader to > + * update these nodes accordingly if PCIe mode is selected by the MCU. > + */ > +/* > +&pcie { > + status = "okay"; > +}; > + > +&usb { > + phys = <&usb2_phy0>, <&usb2_phy1>; > + phy-names = "usb2-phy0", "usb2-phy1"; > +}; > + */ > -- > 2.22.0 >
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts index 3a6a1e0c1e32..124a80901084 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-a311d-khadas-vim3.dts @@ -14,3 +14,28 @@ / { compatible = "khadas,vim3", "amlogic,a311d", "amlogic,g12b"; }; + +/* + * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential + * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between + * an USB3.0 Type A connector and a M.2 Key M slot. + * The PHY driving these differential lines is shared between + * the USB3.0 controller and the PCIe Controller, thus only + * a single controller can use it. + * If the MCU is configured to mux the PCIe/USB3.0 differential lines + * to the M.2 Key M slot, uncomment the following block to disable + * USB3.0 from the USB Complex and enable the PCIe controller. + * The End User is not expected to uncomment the following except for + * testing purposes, but instead rely on the firmware/bootloader to + * update these nodes accordingly if PCIe mode is selected by the MCU. + */ +/* +&pcie { + status = "okay"; +}; + +&usb { + phys = <&usb2_phy0>, <&usb2_phy1>; + phy-names = "usb2-phy0", "usb2-phy1"; +}; + */ diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts index b73deb282120..bba98f982ad6 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-s922x-khadas-vim3.dts @@ -14,3 +14,28 @@ / { compatible = "khadas,vim3", "amlogic,s922x", "amlogic,g12b"; }; + +/* + * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential + * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between + * an USB3.0 Type A connector and a M.2 Key M slot. + * The PHY driving these differential lines is shared between + * the USB3.0 controller and the PCIe Controller, thus only + * a single controller can use it. + * If the MCU is configured to mux the PCIe/USB3.0 differential lines + * to the M.2 Key M slot, uncomment the following block to disable + * USB3.0 from the USB Complex and enable the PCIe controller. + * The End User is not expected to uncomment the following except for + * testing purposes, but instead rely on the firmware/bootloader to + * update these nodes accordingly if PCIe mode is selected by the MCU. + */ +/* +&pcie { + status = "okay"; +}; + +&usb { + phys = <&usb2_phy0>, <&usb2_phy1>; + phy-names = "usb2-phy0", "usb2-phy1"; +}; + */ diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi index 4fe7d33ebe8a..90815fa25ec6 100644 --- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi @@ -246,6 +246,10 @@ linux,rc-map-name = "rc-khadas"; }; +&pcie { + reset-gpios = <&gpio GPIOA_8 GPIO_ACTIVE_LOW>; +}; + &pwm_ef { status = "okay"; pinctrl-0 = <&pwm_e_pins>; diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts index 5233bd7cacfb..dbbf29a0dbf6 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts @@ -68,3 +68,28 @@ clock-names = "clkin1"; status = "okay"; }; + +/* + * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential + * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between + * an USB3.0 Type A connector and a M.2 Key M slot. + * The PHY driving these differential lines is shared between + * the USB3.0 controller and the PCIe Controller, thus only + * a single controller can use it. + * If the MCU is configured to mux the PCIe/USB3.0 differential lines + * to the M.2 Key M slot, uncomment the following block to disable + * USB3.0 from the USB Complex and enable the PCIe controller. + * The End User is not expected to uncomment the following except for + * testing purposes, but instead rely on the firmware/bootloader to + * update these nodes accordingly if PCIe mode is selected by the MCU. + */ +/* +&pcie { + status = "okay"; +}; + +&usb { + phys = <&usb2_phy0>, <&usb2_phy1>; + phy-names = "usb2-phy0", "usb2-phy1"; +}; + */
The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between an USB3.0 Type A connector and a M.2 Key M slot. The PHY driving these differential lines is shared between the USB3.0 controller and the PCIe Controller, thus only a single controller can use it. The needed DT configuration when the MCU is configured to mux the PCIe/USB3.0 differential lines to the M.2 Key M slot is added commented and may be uncommented to disable USB3.0 from the USB Complex and enable the PCIe controller. The End User is not expected to uncomment the following except for testing purposes, but instead rely on the firmware/bootloader to update these nodes accordingly if PCIe mode is selected by the MCU. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> --- .../amlogic/meson-g12b-a311d-khadas-vim3.dts | 25 +++++++++++++++++++ .../amlogic/meson-g12b-s922x-khadas-vim3.dts | 25 +++++++++++++++++++ .../boot/dts/amlogic/meson-khadas-vim3.dtsi | 4 +++ .../dts/amlogic/meson-sm1-khadas-vim3l.dts | 25 +++++++++++++++++++ 4 files changed, 79 insertions(+)