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 * 3 USDHC Storage Controllers 16 * 1 Designware PCI Express Controller 17 * 5 GPIO Controllers 18 * 6 I2C Controllers 19 * Secure Non-Volatile Storage (SNVS) including an RTC 20 * Clock Tree 21 22Boot options 23------------ 24 25The ``imx8mp-evk`` machine can start a Linux kernel directly using the standard 26``-kernel`` functionality. 27 28Direct Linux Kernel Boot 29'''''''''''''''''''''''' 30 31Probably the easiest way to get started with a whole Linux system on the machine 32is to generate an image with Buildroot. Version 2024.11.1 is tested at the time 33of writing and involves three steps. First run the following commands in the 34toplevel directory of the Buildroot source tree: 35 36.. code-block:: bash 37 38 $ make freescale_imx8mpevk_defconfig 39 $ make 40 41Once finished successfully there is an ``output/image`` subfolder. Navigate into 42it and resize the SD card image to a power of two: 43 44.. code-block:: bash 45 46 $ qemu-img resize sdcard.img 256M 47 48Finally, the device tree needs to be patched with the following commands which 49will remove the ``cpu-idle-states`` properties from CPU nodes: 50 51.. code-block:: bash 52 53 $ dtc imx8mp-evk.dtb | sed '/cpu-idle-states/d' > imx8mp-evk-patched.dts 54 $ dtc imx8mp-evk-patched.dts -o imx8mp-evk-patched.dtb 55 56Now that everything is prepared the machine can be started as follows: 57 58.. code-block:: bash 59 60 $ qemu-system-aarch64 -M imx8mp-evk -smp 4 -m 3G \ 61 -display none -serial null -serial stdio \ 62 -kernel Image \ 63 -dtb imx8mp-evk-patched.dtb \ 64 -append "root=/dev/mmcblk2p2" \ 65 -drive file=sdcard.img,if=sd,bus=2,format=raw,id=mmcblk2 66