Phytec L-1017e.A3 i.MX 8M Plus, Manual

Page: 11 / 82

L-1017e.A3 i.MX 8M Plus BSP Manual
•
•
SD Card Test Mode
Flash eMMC
To boot from eMMC, make sure that the BSP image is flashed correctly to the eMMC and the bootmode switch (S3) is
set to Default SOM boot .
Flash eMMC from Network
i.MX 8M Plus boards have an Ethernet connector and can be updated over a network. Be sure to set up the
development host correctly. The IP needs to be set to 192.168.3.10, the netmask to 255.255.255.0, and a TFTP
server needs to be available. From a high-level point of view, an eMMC device is like an SD card. Therefore, it is
possible to flash the
SD card image ( <name>.sdcard) from the Yocto build system directly to the eMMC. The SD card
image contains the bootloader, kernel, device tree, device tree overlays, and root file system.
Flash eMMC from Network in u-boot on Target
These steps will show how to update the eMMC via a network. However, they only work if the size of the image file is
less than 1GB. If the image file is larger, go to the section
Format SD Card . Configure the bootmode switch (S3) to
boot from SD Card and put in an SD card. Power on the board and stop in U-Boot prompt.
Load your image via network to RAM:
u-boot=> tftp ${loadaddr} phytec-qt5demo-image-phyboard-pollux-imx8mp- 3 .sdcard
Using ethernet @30be0000 device
TFTP from server 192.168 . 3.10 ; our IP address is 192.168 . 3.11
Filename 'phytec-qt5demo-image-phyboard-pollux-imx8mp-3.sdcard' .
Load address: 0x40480000
Loading: #################################################################
#################################################################
#################################################################
...
...
...
#################################################################
#############
11.2 MiB/s
done
Bytes transferred =
911842304 (36599c00 hex)
Write the image to the eMMC:
u-boot=> mmc dev 2
Tip
A working network is necessary! Setup Network Host .
