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.. SPDX-License-Identifier: GPL-2.0+
U-Boot for the NXP i.MX8QM ROM 7720a1 board
===========================================
Quick Start
-----------
- Build the ARM Trusted firmware binary
- Get scfw_tcm.bin and ahab-container.img
- Get imx-mkimage
- Build U-Boot
- Build imx-mkimage
- Flash the binary into the SD card
- Boot
Get and Build the ARM Trusted firmware
--------------------------------------
.. code-block:: bash
$ git clone https://source.codeaurora.org/external/imx/imx-atf
$ cd imx-atf/
$ git checkout origin/imx_4.14.78_1.0.0_ga -b imx_4.14.78_1.0.0_ga
$ make PLAT=imx8qm bl31
Get scfw_tcm.bin and ahab-container.img
---------------------------------------
.. code-block:: bash
$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-sc-firmware-1.1.bin
$ chmod +x imx-sc-firmware-1.1.bin
$ ./imx-sc-firmware-1.1.bin
$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.0.bin
$ chmod +x firmware-imx-8.0.bin
$ ./firmware-imx-8.0.bin
Or use this to avoid running random scripts from the internet,
but note that you must agree to the license the script displays:
.. code-block:: bash
$ dd if=imx-sc-firmware-1.1.bin of=imx-sc-firmware-1.1.tar.bz2 bs=37185 skip=1
$ tar -xf imx-sc-firmware-1.1.tar.bz2
$ cp imx-sc-firmware-1.1/mx8qm-val-scfw-tcm.bin $(builddir)
$ dd if=firmware-imx-8.0.bin of=firmware-imx-8.0.tar.bz2 bs=37180 skip=1
$ tar -xf firmware-imx-8.0.tar.bz2
$ cp firmware-imx-8.0/firmware/seco/mx8qm-ahab-container.img $(builddir)
Build U-Boot
------------
.. code-block:: bash
$ export ATF_LOAD_ADDR=0x80000000
$ export BL33_LOAD_ADDR=0x80020000
$ make imx8qm_rom7720_a1_4G_defconfig
$ make u-boot.bin
$ make flash.bin
Flash the binary into the SD card
---------------------------------
Burn the flash.bin binary to SD card offset 32KB:
.. code-block:: bash
$ sudo dd if=flash.bin of=/dev/sd[x] bs=1k seek=32 conv=fsync
Boot
----
Set Boot switch SW2: 1100.
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