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

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

Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Adrien Grassein 2021-02-23 20:16:46 +01:00 committed by Shawn Guo
parent f37cd7560d
commit 421f715c73
1 changed files with 42 additions and 0 deletions
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42
arch/arm64/boot/dts/freescale/imx8mm-nitrogen-r2.dts
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@ -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