$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.11.bin

 $ chmod a+x firmware-imx-8.11.bin

$ ./firmware-imx-8.11.bin
enter "y" to accept EULA

$ cd firmware-imx-8.11.bin

$ cp firmware/ddr/synopsys/lpddr4_pmu_train_1d_dmem_202006.bin ../imx-mkimage/iMX8M/
$ cp firmware/ddr/synopsys/lpddr4_pmu_train_1d_imem_202006.bin ../imx-mkimage/iMX8M/
$ cp firmware/ddr/synopsys/lpddr4_pmu_train_2d_dmem_202006.bin .bin ../imx-mkimage/iMX8M/
$ cp firmware/ddr/synopsys/lpddr4_pmu_train_2d_imem_202006.bin .bin ../imx-mkimage/iMX8M/

$ cp firmware/hdmi/cadence/signed_hdmi_imx8m.bin ../imx-mkimage/iMX8M/


$ cd ../

Note1:

If the board is 2GB LPDDR4, use
$ make ARCH=arm CROSS_COMPILE=${CC} smarcimx8mp_2g_ser3_defconfig

If the board is 4GB LPDDR4, use
$ make ARCH=arm CROSS_COMPILE=${CC} smarcimx8mp_4g_ser3_defconfig

If the board is 6GB LPDDR4, use
$ make ARCH=arm CROSS_COMPILE=${CC} smarcimx8mp_6g_ser3_defconfig

Note 2:

"ser3" stands for console debug port in SMARC definition. In this example, we uses SER3 as debug port. If user uses SER0 as your debug port, make change to "ser0" instead. Same as SER1 and SER2.

Note 3:

To change the debug port, in addition to u-boot defconfig and uEnv.txt files, you also need to modify plat/imx/imx8m/imx8mp/platform.mk in the imx-atf. Find "IMX_BOOT_UART_BASE      ?=      0x30890000" and change to the correct address that defined in uEnv.txt file.

Note 4:

The SMARC-iMX8MP module always boot up from the on-module eMMC flash. The factory default will be flash.bin pre-installed with SER3 as console output. In some cases when the eMMC flash is empty or needs to be upgraded. Users can shunt crossed the TEST# to ground. In this way, the SMARC-iMX8MP module will boot up to carrier SD card, if TEST# pin is shunt crossed. The flash.bin image are the same, the difference is how you flash flash.bin. This will be explained in the "Setup SD card" section.

optargs="video=HDMI-A-1:1920x1080-32@60 consoleblank=0"
#optargs="video=HDMI-A-1:3840x2160-32@30 consoleblank=0"
#optargs="video=HDMI-A-1:3840x2160-32@60 consoleblank=0"
#console port SER3
console=ttymxc1,115200 earlycon=ec_imx6q,0x30890000,115200
#console port SER2
#console=ttymxc2,115200 earlycon=ec_imx6q,0x30880000,115200
#console port SER1
#console=ttymxc3,115200 earlycon=ec_imx6q,0x30a60000,115200
#console port SER0
#console=ttymxc0,115200 earlycon=ec_imx6q,0x30860000,115200
mmcdev=1
mmcpart=1
image=Image
loadaddr=0x40480000
fdt_addr=0x43000000
mmcroot=/dev/mmcblk1p2 rw
usbroot=/dev/sda2 rw
mmcrootfstype=ext4 rootwait fixrtc
netdev=eth0
ethact=FEC0
ipaddr=192.168.1.150
serverip=192.168.1.53
gatewayip=192.168.1.254
mmcargs=setenv bootargs cma=1280M console=${console} root=${mmcroot} rootfstype=${mmcrootfstype} ${optargs}
uenvcmd=run loadimage; run loadfdt; run mmcboot
# USB Boot
#usbargs=setenv bootargs console=${console} root=${usbroot} rootfstype=${mmcrootfstype} ${optargs}
#uenvcmd=run loadusbimage; run loadusbfdt; run usbboot