1NXP i.MX 8M Plus Evaluation Kit (``imx8mp-evk``) 2================================================ 3 4The ``imx8mp-evk`` machine models the i.MX 8M Plus Evaluation Kit, based on an 5i.MX 8M Plus SoC. 6 7Supported devices 8----------------- 9 10The ``imx8mp-evk`` machine implements the following devices: 11 12 * Up to 4 Cortex-A53 cores 13 * Generic Interrupt Controller (GICv3) 14 * 4 UARTs 15 * Clock Tree 16 17Boot options 18------------ 19 20The ``imx8mp-evk`` machine can start a Linux kernel directly using the standard 21``-kernel`` functionality. 22 23Direct Linux Kernel Boot 24'''''''''''''''''''''''' 25 26Probably the easiest way to get started with a whole Linux system on the machine 27is to generate an image with Buildroot. Version 2024.11.1 is tested at the time 28of writing and involves two steps. First run the following commands in the 29toplevel directory of the Buildroot source tree: 30 31.. code-block:: bash 32 33 $ echo "BR2_TARGET_ROOTFS_CPIO=y" >> configs/freescale_imx8mpevk_defconfig 34 $ make freescale_imx8mpevk_defconfig 35 $ make 36 37Once finished successfully there is an ``output/image`` subfolder. Navigate into 38it and patch the device tree with the following commands which will remove the 39``cpu-idle-states`` properties from CPU nodes: 40 41.. code-block:: bash 42 43 $ dtc imx8mp-evk.dtb | sed '/cpu-idle-states/d' > imx8mp-evk-patched.dts 44 $ dtc imx8mp-evk-patched.dts -o imx8mp-evk-patched.dtb 45 46Now that everything is prepared the machine can be started as follows: 47 48.. code-block:: bash 49 50 $ qemu-system-aarch64 -M imx8mp-evk -smp 4 -m 3G \ 51 -display none -serial null -serial stdio \ 52 -kernel Image \ 53 -dtb imx8mp-evk-patched.dtb \ 54 -initrd rootfs.cpio \ 55 -append "root=/dev/ram" 56