cannot support USB and fastboot in v2020.07 u-boot for uuu

[leicafrankli]

if download the u-boot-imx to v2020.07, it Looks like uuu does not work on the imx8mm EVK board.

It waits forever and cannot switch to FB mode.

[AldoG]

Hello,

I believe that you’re using the community Uboot, sometimes this version does not have the UUU configurations needed enabled.

You may refer to our official release for reference here:

https://source.codeaurora.org/external/imx/uboot-imx/tree/configs/imx8mm_evk_defconfig?h=lf_v2020.04...

Please make sure that your defconfig have this enabled.

CONFIG_CMD_FASTBOOT=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_UUU_SUPPORT=y
CONFIG_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0x42800000
CONFIG_FASTBOOT_BUF_SIZE=0x40000000
CONFIG_FASTBOOT_FLASH=y

Best regards,
Aldo.