Hi Team,
We are working on IMX8MM bringup activities. We need your help.
Our team has changed design from type C port to MICRO B USB1 in IMX8mm.
So could you please share your inputs that what are the changes required in Kernel and UBOOT to support MICRO B USB1 smoothly .
refer to the link as below:
Can you share the BSP information on which this U-Boot changes are verified ?
Have you prepare the similar changes for kernel to use USB2.0 without USB TYPE-C ?
If yes, please share patch details.
CHANGES:
U-BOOT: CONFIG_USB_TCPC=n
Device Tree:
&usbotg1 {
status = "okay";
};
&usbotg2 {
status = "okay";
We did the same changes in U-boot. Do we need to make same changes in Kernel as well ?
Like we have defconfig entry for CONFIG_USB_TCPC in kernel as well. What should be done with kernel changes?
in uboot, try to remove CONFIG_USB_TCPC in imx8mm_evk_defconfi and well as removing the typec_ptn5110_1/2 dependencies in the fsl-imx8mm-evk.dts
so in the kernel, you don't need add CONFIG_USB_TCPC in the configure file, I don't find CONFIG_USB_TCPC in the kernel configure file
Hi,
In U-BOOT:
Removed CONFIG_USB_TCPC in imx8mm_evk_defconfi
Removed typec_ptn5110_1/2 dependencies in the fsl-imx8mm-evk.dts
Kernel:
We have the typec_ptn5110_1 dependency in theimx8mm-evk.dtsi as well. Please check below.
ptn5110: tcpc@50 {
compatible = "nxp,ptn5110";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_typec1>;
reg = <0x50>;
interrupt-parent = <&gpio2>;
interrupts = <11 8>;
status = "okay";
port {
typec1_dr_sw: endpoint {
remote-endpoint = <&usb1_drd_sw>;
};
};
typec1_con: connector {
compatible = "usb-c-connector";
label = "USB-C";
power-role = "dual";
data-role = "dual";
try-power-role = "sink";
source-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)>;
sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_USB_COMM)
PDO_VAR(5000, 20000, 3000)>;
op-sink-microwatt = <15000000>;
self-powered;
};
};
Please share details for these changes as well.
File : "arch/arm64/configs/imx_v8_android_defconfig"
CONFIG_TYPEC=y
CONFIG_TYPEC_TCPM=y
CONFIG_TYPEC_TCPCI=y
CONFIG_TYPEC_FUSB302=m
CONFIG_TYPEC_HD3SS3220=m
CONFIG_TYPEC_SWITCH_GPIO=y
We have these entries in kernel Defconfig. What value should I assign for these entries
for kernel, pls refer to the link as below and attached file,
This is an example of enabling USB OTG on MX8MM EVK through micro-USB connector, with role-switch done by the ID pin, bypassing the CC logic and type-C connector.
This is done based on L4.14.78 pre-build image and i.MX8MM EVK(RevB)
Hi @joanxie ,
any update on above comment?