diff options
| author | Roger Quadros <rogerq@ti.com> | 2020-09-30 15:20:32 +0300 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2020-09-30 07:34:03 -0500 |
| commit | bbcb0522ae0cea0f2561e7dad243f8a3d5ab5559 (patch) | |
| tree | 5bcfd61bc005009dd5390ab665ec448375a0bf77 /arch/arm64/boot | |
| parent | e38a45b0192c4562e610c9c81e4c742b48fa69f0 (diff) | |
| download | linux-bbcb0522ae0cea0f2561e7dad243f8a3d5ab5559.tar.bz2 | |
arm64: dts: ti: k3-j7200-common-proc-board: Add USB support
The board uses lane 3 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 upto 2 protocols can be used at a time. The SERDES is
wired for PCIe, QSGMII and USB super-speed. It has been
chosen to use PCI2 and QSGMII as default. So restrict
USB0 to high-speed mode.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20200930122032.23481-7-rogerq@ti.com
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts index ddbc2163e698..ef03e7636b66 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts @@ -69,6 +69,12 @@ J721E_IOPAD(0xe4, PIN_INPUT, 8) /* (V1) TIMER_IO0.MMC1_SDCD */ >; }; + + main_usbss0_pins_default: main-usbss0-pins-default { + pinctrl-single,pins = < + J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS */ + >; + }; }; &wkup_uart0 { @@ -191,3 +197,19 @@ idle-states = <J7200_SERDES0_LANE0_PCIE1_LANE0>, <J7200_SERDES0_LANE1_PCIE1_LANE1>, <J7200_SERDES0_LANE2_QSGMII_LANE1>, <J7200_SERDES0_LANE3_IP4_UNUSED>; }; + +&usb_serdes_mux { + idle-states = <1>; /* USB0 to SERDES lane 3 */ +}; + +&usbss0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_usbss0_pins_default>; + ti,vbus-divider; + ti,usb2-only; +}; + +&usb0 { + dr_mode = "otg"; + maximum-speed = "high-speed"; +}; |