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 * 3 SPI Controllers 20 * 3 Watchdogs 21 * Secure Non-Volatile Storage (SNVS) including an RTC 22 * Clock Tree 23 24Boot options 25------------ 26 27The ``imx8mp-evk`` machine can start a Linux kernel directly using the standard 28``-kernel`` functionality. 29 30Direct Linux Kernel Boot 31'''''''''''''''''''''''' 32 33Probably the easiest way to get started with a whole Linux system on the machine 34is to generate an image with Buildroot. Version 2024.11.1 is tested at the time 35of writing and involves three steps. First run the following commands in the 36toplevel directory of the Buildroot source tree: 37 38.. code-block:: bash 39 40 $ make freescale_imx8mpevk_defconfig 41 $ make 42 43Once finished successfully there is an ``output/image`` subfolder. Navigate into 44it and resize the SD card image to a power of two: 45 46.. code-block:: bash 47 48 $ qemu-img resize sdcard.img 256M 49 50Finally, the device tree needs to be patched with the following commands which 51will remove the ``cpu-idle-states`` properties from CPU nodes: 52 53.. code-block:: bash 54 55 $ dtc imx8mp-evk.dtb | sed '/cpu-idle-states/d' > imx8mp-evk-patched.dts 56 $ dtc imx8mp-evk-patched.dts -o imx8mp-evk-patched.dtb 57 58Now that everything is prepared the machine can be started as follows: 59 60.. code-block:: bash 61 62 $ qemu-system-aarch64 -M imx8mp-evk -smp 4 -m 3G \ 63 -display none -serial null -serial stdio \ 64 -kernel Image \ 65 -dtb imx8mp-evk-patched.dtb \ 66 -append "root=/dev/mmcblk2p2" \ 67 -drive file=sdcard.img,if=sd,bus=2,format=raw,id=mmcblk2 68