AnsweredAssumed Answered


Question asked by Stanley Kwee on Jan 29, 2019
Latest reply on Jan 30, 2019 by igorpadykov

Hi all,


I'm using uuu to flash my imx6ullevk based custom board with Micron EMMC 5.0 MTFC4GACAJCN . EMMC is flashed ok and zImage, device tree and root file system are written OK in the EMMC but u-boot is not booting at startup.


1. The EMMC is set on usdhc2 position
2. After uuu completed with success, while power is kept, started uuu again in shell mode and issue command "FB: ucmd boot", the u-boot, kernel and the whole linux could boot up
3. And I'm using the u-boot-imx6ull14x14evk_emmc.imx file in L4.14.78_1.0.0_ga_images_MX6UL7D package.


However, if the board is power cycled and boot mode is set to internal boot on EMMC, nothing appears on my serial terminal.


What could be wrong?


Thanks in advance.