Uboot does not boot on LS1021ATSN board

[lyt1994125]

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.

[yipingwang]

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

[Liing]

Hi ,

I want to ask how to check the switch setting 

Ls1021ATSN SD sdcard SW2=0b’111111

I check  the Openil user guide but didn’t mention it.

I will be grateful if you can help me