On Fri, Jan 24, 2025 at 06:11:49PM +0530, Siddharth Vadapalli wrote: This patch has been merged with the following series due to Makefile dependencies: https://lore.kernel.org/r/20250202093636.2699064-1-s-vadapalli@xxxxxx/ and therefore has been superseded by its equivalent in the above series. Regards, Siddharth. > 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@xxxxxx> > --- > > Hello, > > This patch is based on linux-next tagged next-20250124. > Since Linux boot is broken on all TI K3 SoCs including > J742S2 and J784S4 due to: > https://github.com/torvalds/linux/commit/ba5095ebbc7a > as indicated at: > https://lore.kernel.org/r/b2413460-ec8b-4c77-99b8-4c32b262439a@xxxxxx/ > this patch was tested on J784S4-EVM by reverting the aforementioned commit. > Logs validating the USB2.0 Type-A Connector on J784S4-EVM using a USB Pen > Drive: > https://gist.github.com/Siddharth-Vadapalli-at-TI/663d703912ae574e39d7a78421e404c8 > > 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 8a4bdf87e2d4..95b8fd0981d7 100644 > --- a/arch/arm64/boot/dts/ti/Makefile > +++ b/arch/arm64/boot/dts/ti/Makefile > @@ -127,6 +127,7 @@ 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 > @@ -209,10 +210,14 @@ 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 \ > @@ -243,8 +248,10 @@ 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"; > +}; > -- > 2.43.0 >
