| Message ID | 20250409100853.4179934-1-s-vadapalli@ti.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v3] arm64: dts: ti: k3-j784s4-j742s2-evm: Add overlay to enable USB0 Type-A | expand |
On 4/9/2025 3:38 PM, Siddharth Vadapalli wrote: > The USB0 instance of the USB controller on both the J742S2 EVM and the > J784S4 EVM supports a single USB interface at a time among the following: > 1. USB3.1 Gen1 Type C interface > 2. Two USB2.0 Type A interfaces via an on-board USB Hub. > > By default, the USB3.1 Gen1 Type C interface is supported on both of the > EVMs. Enable the USB2.0 Type A interface by configuring the USB2.0_MUX_SEL > mux. Additionally, set the Dual-Role Mode to Host since a Type-A interface > is only associated with the Host Mode of operation. > > Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> > --- > > Hello, > > This patch is based on linux-next tagged next-20250409. > > v2 of this patch is at: > https://lore.kernel.org/r/20250226124245.9856-4-s-vadapalli@ti.com/ > Changes since v2: > - Rebased patch on next-20250409 and dropped other patches which were > present in the v2 series. > > Regards, > Siddharth. > > arch/arm64/boot/dts/ti/Makefile | 7 +++++ > .../ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso | 29 +++++++++++++++++++ > 2 files changed, 36 insertions(+) > create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso > > diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile > [..]index 03d4cecfc001..c7f23fbce660 100644 > +/dts-v1/; > +/plugin/; > + > +#include <dt-bindings/gpio/gpio.h> > + > +&exp2 { > + p12-hog { > + /* P12 - USB2.0_MUX_SEL */ > + gpio-hog; > + gpios = <12 GPIO_ACTIVE_HIGH>; > + output-high; > + line-name = "USB2.0_MUX_SEL"; > + }; > +}; > + > +&usb0 { > + dr_mode = "host"; > +}; Reviewed-by: Udit Kumar <u-kumar1@ti.com>
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 03d4cecfc001..c7f23fbce660 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -128,6 +128,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-pcie0-pcie1-ep.dtbo dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-quad-port-eth-exp1.dtbo dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm-usxgmii-exp1-exp2.dtbo +dtb-$(CONFIG_ARCH_K3) += k3-j784s4-j742s2-evm-usb0-type-a.dtbo # Boards with J742S2 SoC dtb-$(CONFIG_ARCH_K3) += k3-j742s2-evm.dtb @@ -212,10 +213,14 @@ k3-j721e-sk-csi2-dual-imx219-dtbs := k3-j721e-sk.dtb \ k3-j721e-sk-csi2-dual-imx219.dtbo k3-j721s2-evm-pcie1-ep-dtbs := k3-j721s2-common-proc-board.dtb \ k3-j721s2-evm-pcie1-ep.dtbo +k3-j742s2-evm-usb0-type-a-dtbs := k3-j742s2-evm.dtb \ + k3-j784s4-j742s2-evm-usb0-type-a.dtbo k3-j784s4-evm-pcie0-pcie1-ep-dtbs := k3-j784s4-evm.dtb \ k3-j784s4-evm-pcie0-pcie1-ep.dtbo k3-j784s4-evm-quad-port-eth-exp1-dtbs := k3-j784s4-evm.dtb \ k3-j784s4-evm-quad-port-eth-exp1.dtbo +k3-j784s4-evm-usb0-type-a-dtbs := k3-j784s4-evm.dtb \ + k3-j784s4-j742s2-evm-usb0-type-a.dtbo k3-j784s4-evm-usxgmii-exp1-exp2-dtbs := k3-j784s4-evm.dtb \ k3-j784s4-evm-usxgmii-exp1-exp2.dtbo dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ @@ -246,8 +251,10 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \ k3-j721e-evm-pcie1-ep.dtb \ k3-j721e-sk-csi2-dual-imx219.dtb \ k3-j721s2-evm-pcie1-ep.dtb \ + k3-j742s2-evm-usb0-type-a.dtb \ k3-j784s4-evm-pcie0-pcie1-ep.dtb \ k3-j784s4-evm-quad-port-eth-exp1.dtb \ + k3-j784s4-evm-usb0-type-a.dtb \ k3-j784s4-evm-usxgmii-exp1-exp2.dtb # Enable support for device-tree overlays diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso new file mode 100644 index 000000000000..ba15d72d86d6 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/** + * DT Overlay for enabling USB0 instance of USB on J784S4 and J742S2 EVMs for + * Host Mode of operation with the Type-A Connector. + * + * J784S4 EVM Product Link: https://www.ti.com/tool/J784S4XEVM + * J742S2 EVM Product Link: https://www.ti.com/tool/J742S2XH01EVM + * + * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/gpio/gpio.h> + +&exp2 { + p12-hog { + /* P12 - USB2.0_MUX_SEL */ + gpio-hog; + gpios = <12 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "USB2.0_MUX_SEL"; + }; +}; + +&usb0 { + dr_mode = "host"; +};
The USB0 instance of the USB controller on both the J742S2 EVM and the J784S4 EVM supports a single USB interface at a time among the following: 1. USB3.1 Gen1 Type C interface 2. Two USB2.0 Type A interfaces via an on-board USB Hub. By default, the USB3.1 Gen1 Type C interface is supported on both of the EVMs. Enable the USB2.0 Type A interface by configuring the USB2.0_MUX_SEL mux. Additionally, set the Dual-Role Mode to Host since a Type-A interface is only associated with the Host Mode of operation. Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> --- Hello, This patch is based on linux-next tagged next-20250409. v2 of this patch is at: https://lore.kernel.org/r/20250226124245.9856-4-s-vadapalli@ti.com/ Changes since v2: - Rebased patch on next-20250409 and dropped other patches which were present in the v2 series. Regards, Siddharth. arch/arm64/boot/dts/ti/Makefile | 7 +++++ .../ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso | 29 +++++++++++++++++++ 2 files changed, 36 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-j784s4-j742s2-evm-usb0-type-a.dtso