NXP Semiconductors Layerscape LS1028A BSP, User Manual, Page: 21 / 136

1. Reboot the reference board from FlexSPI NOR CS0 (or SD card / eMMC) and let it boot automatically.
• If the DIP switch settings are configured to be default, the board will boot from FlexSPI NOR flash CS0 (or SD card /
eMMC) using the composite firmware which is present on the reference board by default.
2. After the reference board boots automatically, check whether the reference board boots TinyDistro or whether it boots
Ubuntu distribution. TinyDistro is a non-customizable prebuilt ramdisk rootfs deployed in flash media on the reference
board. This rootfs fits into the firmware image on flash and is therefore called tiny.
• If the reference board boots TinyDistro, proceed to step #4.
• If the reference board boots Ubuntu distribution, it means that an older Ubuntu distribution may already be present
on the storage device that is plugged into the reference board. In this case, go to step #3 first, to force the board to
boot TinyDistro.
3. Force the reference board to boot TinyDistro.
• Reboot the board and stop autoboot to enter U-Boot prompt in FlexSPI NOR flash (or SD card / eMMC).
• If FlexSPI NOR is the boot source, run the following command to force the reference board to boot TinyDistro
present on FlexSPI NOR flash.
$ run qspi_bootcmd
• If SD card is the boot source, run the following commands to force the reference board to boot TinyDistro present on
SD card.
$ run sd_bootcmd
• If eMMC is the boot source, run the following commands to force the reference board to boot TinyDistro present on
eMMC.
$ run emmc_bootcmd
4. Login to TinyDistro as “root” and bring up a network interface.
$ udhcpc -i <port name in TinyDistro>
For LS1028ARDB, in TinyDistro as well as in Ubuntu distribution, by default, only one Ethernet port is enabled as a standard
Kernel Ethernet Interface.
For LS1028ARDB, this interface is named as Eth0 in TinyDistro and is labeled as 1G MAC0 on chassis front panel as
shown in diagram below.
5. Use flex-installer to create and format the partitions for storage device (USB/SATA/SD).
LS1028A BSP Quick Start
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
NXP Semiconductors
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