[PATCH v4 2/4] arm64: dts: imx8mq-nitrogen: add USB HOST support
From: Adrien Grassein <adrien.grassein@gmail.com>
Date: 2021-05-11 19:36:15
Also in:
linux-arm-kernel, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Add the description for the USB host port. This port is linked to a resettable USB HUB so handle this reset signal with a GPIO hog. Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com> --- .../boot/dts/freescale/imx8mq-nitrogen.dts | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts
index b46f45a82be1..5553f3c84dbc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-nitrogen.dts@@ -102,6 +102,15 @@ ethphy0: ethernet-phy@4 { }; }; +/* Release reset of the USB Host HUB */ +&gpio1 { + usb-host-reset-hog { + gpio-hog; + gpios = <14 GPIO_ACTIVE_HIGH>; + output-high; + }; +}; + &i2c1 { clock-frequency = <400000>; pinctrl-names = "default";
@@ -213,6 +222,17 @@ &usb3_phy0 { status = "okay"; }; +&usb_dwc3_1 { + dr_mode = "host"; + status = "okay"; +}; + +&usb3_phy1 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb3_1>; + status = "okay"; +}; + &usdhc1 { assigned-clocks = <&clk IMX8MQ_CLK_USDHC1>; assigned-clock-rates = <400000000>;
@@ -388,6 +408,12 @@ MX8MQ_IOMUXC_GPIO1_IO13_USB1_OTG_OC 0x16 >; }; + pinctrl_usb3_1: usb3-1grp { + fsl,pins = < + MX8MQ_IOMUXC_GPIO1_IO14_GPIO1_IO14 0x16 + >; + }; + pinctrl_usdhc1: usdhc1grp { fsl,pins = < MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK 0x83
--
2.25.1