diff options
| author | Aswath Govindraju <[email protected]> | 2023-03-31 14:30:25 +0530 |
|---|---|---|
| committer | Vignesh Raghavendra <[email protected]> | 2023-06-14 16:12:19 +0530 |
| commit | 7743a9d7517a6a1f3b21d32db3bc1d00d6b16983 (patch) | |
| tree | e1290c252aa708998902acdf8625d2513167dff0 | |
| parent | da61731dc7f5d7a676acd81124229b57e6fbe0ef (diff) | |
arm64: dts: ti: k3-j721s2-common-proc-board: Add USB support
The board uses lane 1 of SERDES for USB. Set the mux
accordingly.
The USB controller and EVM supports super-speed for USB0
on the Type-C port. However, the SERDES has a limitation
that up to 2 protocols can be used at a time. The SERDES is
wired for PCIe, eDP and USB super-speed. It has been
chosen to use PCIe and eDP as default. So restrict
USB0 to high-speed mode.
Signed-off-by: Aswath Govindraju <[email protected]>
Signed-off-by: Matt Ranostay <[email protected]>
Signed-off-by: Ravi Gunasekaran <[email protected]>
Reviewed-by: Roger Quadros <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vignesh Raghavendra <[email protected]>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts index 30a566fef195..f81a40bbdac0 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts @@ -146,6 +146,12 @@ J721S2_IOPAD(0x020, PIN_INPUT, 7) /* (AA23) MCAN15_RX.GPIO0_8 */ >; }; + + main_usbss0_pins_default: main-usbss0-pins-default { + pinctrl-single,pins = < + J721S2_IOPAD(0x0ec, PIN_OUTPUT, 6) /* (AG25) TIMER_IO1.USB0_DRVVBUS */ + >; + }; }; &wkup_pmx0 { @@ -344,6 +350,23 @@ }; }; +&usb_serdes_mux { + idle-states = <1>; /* USB0 to SERDES lane 1 */ +}; + +&usbss0 { + status = "okay"; + pinctrl-0 = <&main_usbss0_pins_default>; + pinctrl-names = "default"; + ti,vbus-divider; + ti,usb2-only; +}; + +&usb0 { + dr_mode = "otg"; + maximum-speed = "high-speed"; +}; + &mcu_mcan0 { status = "okay"; pinctrl-names = "default"; |