Hi,
summary: we wrote invalid data under the Uboot of the LS1021ATSN board, causing Uboot to fail to boot.
Detailed description:
Our LS1021ATSN is the board that the SD card boot. After I loaded the sdcard.img in the card, I debug it via USB. Enter the following command under Uboot: mmc write 0x81000000 8 0x500, then I can't enter Uboot. Finally, I formatted the SD card to re-copy the sdcard.img or not enter.
Please build u-boot images with the following commands.
$ cd openil
$ make nxp_ls1021atsn_defconfig
$ make
Please check the switch setting
LS1021ATSN SD card SW2 = 0b’111111