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