Commit 421f715c authored by Adrien Grassein's avatar Adrien Grassein Committed by Shawn Guo
Browse files

arm64: dts: imx8mm-nitrogen-r2: add USB support 



Add description of USB.
usbotg2 seems to not working on all boards (including ones
from variscite).

Signed-off-by: default avatarAdrien Grassein <adrien.grassein@gmail.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent f37cd756

arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts

+42 −0
Original line number Diff line number Diff line
@@ -247,6 +247,34 @@ 
	status = "okay";

};



/* USB OTG port */

&usbotg1 {

	dr_mode = "otg";

	over-current-active-low;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_usbotg1>;

	power-active-high;

	status = "okay";

};



/* USB Host port */

&usbotg2 {

	dr_mode = "host";

	over-current-active-low;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_usbotg2>;

	power-active-high;

	/*

	 * FIXME: having USB2 enabled hangs the boot just after:

	 *[    1.655941] ci_hdrc ci_hdrc.1: EHCI Host Controller

	 *[    1.660880] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2

	 *[    1.681505] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00

	 *[    1.687730] hub 2-0:1.0: USB hub found

	 *[    1.691528] hub 2-0:1.0: 1 port detected

	 */

	status = "disabled";

};



&wdog1 {

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_wdog>;
@@ -318,6 +346,20 @@ 
		>;

	};



	pinctrl_usbotg1: usbotg1grp {

		fsl,pins = <

			MX8MM_IOMUXC_GPIO1_IO12_USB1_OTG_PWR	0x16

			MX8MM_IOMUXC_GPIO1_IO13_USB1_OTG_OC	0x156

		>;

	};



	pinctrl_usbotg2: usbotg2grp {

		fsl,pins = <

			MX8MM_IOMUXC_GPIO1_IO14_USB2_OTG_PWR	0x16

			MX8MM_IOMUXC_GPIO1_IO15_USB2_OTG_OC	0x15

		>;

	};



	pinctrl_usdhc1: usdhc1grp {

		fsl,pins = <

			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x190