NXP Semiconductors UM11483 - Booting from eMMC

NXP Semiconductors
UM11483
Getting Started with NXP Wireless Modules for i.MX 8M-Quad Platforms
UM11483 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved.
User manual Rev. 1 — 28 September 2020
29 / 39
5.6 Booting from eMMC
To boot the i.MX 8M Quad from eMMC, set boot switch as per the settings given in
Section 3.4 "i.MX 8M Quad switch settings".
5.6.1 Setup the serial console
Follow these steps to setup the serial console and access the i.MX 8M Quad device
terminal:
• Open the serial console and login into the device
ubuntu@ubuntu-desktop:/# sudo minicom -s -D /dev/ttyUSBx
• ttyUSB0 or ttyUSB01 is the serial device for getting console of the device, minicom
setup configurations given below:
A - Serial Device : /dev/ttyUSBx
E - Bps/Par/Bits : 115200 8N1
F - Hardware Flow Control : No
G - Software Flow Control : No
• Save and exit.
5.6.2 Log into Linux OS
The default login username for the i.MX Linux OS is root. There is no password.
5.6.3 Enable SDIO on M.2 for AW-CM358MA module
Use the following command to enable the SDIO support on M.2. The command renames
the DTB file for default SDIO on M.2 connector and reboots the board.
root@imx8mqevk:~# mv /run/media/mmcblk0p1/imx8mq-evk-usdhc2-m2.dtb /
run/media/mmcblk0p1/imx8mq-evk.dtb
root@imx8mqevk:~# reboot
Note: This section only applies to AW-CM358MA module based on M.2 connector. The
SDIO on M.2 DTB is necessary to make default to enable the SDIO support on M.2.
By default the SDIO support is enabled for the SD Card slot connector. The hardware
rework instructions are given in Section 4.1.1.6 "i.MX 8M Quad rework for SDIO support
on M.2".
5.6.4 Software package release version information
The software package release version information is included in the release notes.