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U-Boot for the NXP i.MX8MQ EVK board
Quick Start
===========
- Build U-Boot
- Build the ARM Trusted firmware binary
- Get DDR firmware and mkimage tool
- Generate flash.bin using imx-mkimage
- Flash the binary into the SD card
- Boot
Build U-Boot
============
$ make mx8mq_evk_defconfig
$ make
Get and Build the ARM Trusted firmware
======================================
$ git clone https://source.codeaurora.org/external/imx/imx-atf
$ cd imx-atf/
$ git checkout origin/imx_4.9.51_imx8m_beta
$ make PLAT=imx8mq bl31
Get the DDR firmware and mkimage tool
==============================
$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-7.2.bin
$ chmod +x firmware-imx-7.2.bin
$ ./firmware-imx-7.2.bin
Download the imx-mkimage tool:
$ git clone https://source.codeaurora.org/external/imx/imx-mkimage/
$ cd imx-mkimage/
$ git checkout origin/imx_4.9.51_imx8m_beta
Generate flash.bin using imx-mkimage
====================================
Copy the following binaries to imx-mkimage/iMX8M folder:
$ cp imx-atf/build/imx8mq/release/bl31.bin imx-mkimage/iMX8M/
$ cp u-boot/u-boot-nodtb.bin imx-mkimage/iMX8M/
$ cp u-boot/spl/u-boot-spl.bin imx-mkimage/iMX8M/
$ cp u-boot/arch/arm/dts/fsl-imx8mq-evk.dtb imx-mkimage/iMX8M/
Copy the following firmwares to imx-mkimage/iMX8 folder :
$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_1d_dmem.bin imx-mkimage/iMX8M/
$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_1d_imem.bin imx-mkimage/iMX8M/
$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_2d_dmem.bin imx-mkimage/iMX8M/
$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_2d_imem.bin imx-mkimage/iMX8M/
If you want to run with HDMI, copy signed_hdmi_imx8m.bin to imx-mkimage/iMX8M.
Before generating the flash.bin, transfer the mkimage generated by U-Boot to iMX8M folder:
$ cp u-boot/tools/mkimage imx-mkimage/iMX8M/
$ mv imx-mkimage/iMX8M/mkimage imx-mkimage/iMX8M/mkimage_uboot
$ cd imx-mkimage/
$ make SOC=iMX8M flash_spl_uboot
Or for using HDMI:
$ make SOC=iMX8M flash_hdmi_spl_uboot
Flash the binary into the SD card
=================================
Burn the flash.bin binary to SD card offset 33KB:
$ sudo dd if=iMX8M/flash.bin of=/dev/sd[x] bs=1024 seek=33
Boot
====
Set Boot switch SW801: 1100 and Bmode: 10 to boot from Micro SD.