2021-09-29 14:42:42 +00:00
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.. SPDX-License-Identifier: GPL-2.0+
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2022-08-24 13:59:19 +00:00
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Kontron Electronics i.MX8MM SoMs and Boards
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===========================================
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2021-09-29 14:42:42 +00:00
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2022-08-24 13:59:19 +00:00
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The SL i.MX8MM and OSM-S i.MX8MM by Kontron Electronics GmbH are SoM modules
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2021-09-29 14:42:42 +00:00
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with an i.MX8M-Mini SoC, 1/2/4 GB LPDDR4 RAM, SPI NOR, eMMC and PMIC.
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2022-08-24 13:59:19 +00:00
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The matching evaluation boards (Board-Line, BL) have two Ethernet ports,
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USB 2.0, HDMI/LVDS, SD card, CAN, RS485, RS232 and much more.
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The OSM-S i.MX8MM is compliant to the Open Standard Module (OSM) 1.0
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specification, size S (https://sget.org/standards/osm).
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2021-09-29 14:42:42 +00:00
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Quick Start
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-----------
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- Get and Build the Trusted Firmware-A (TF-A)
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- Get the DDR firmware
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- Build U-Boot
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- Boot
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Get and Build the Trusted Firmware-A (TF-A)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Note: builddir is U-Boot build directory (source directory for in-tree builds)
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There are two sources for the TF-A. Mainline and NXP. Get the one you prefer
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(support and features might differ).
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**NXP's imx-atf**
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1. Get TF-A from: https://source.codeaurora.org/external/imx/imx-atf, branch: imx_5.4.70_2.3.0
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2. Apply the patch to select the correct UART for the console, otherwise the TF-A will lock up during boot.
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3. Build
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.. code-block:: bash
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$ make PLAT=imx8mm bl31
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$ cp build/imx8mm/release/bl31.bin $(builddir)
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**Mainline TF-A**
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1. Get TF-A from: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/, tag: v2.4
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2. Build
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.. code-block:: bash
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$ make PLAT=imx8mm CROSS_COMPILE=aarch64-linux-gnu- IMX_BOOT_UART_BASE="0x30880000" bl31
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$ cp build/imx8mm/release/bl31.bin $(builddir)
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Get the DDR firmware
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^^^^^^^^^^^^^^^^^^^^
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.. code-block:: bash
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$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.9.bin
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$ chmod +x firmware-imx-8.9.bin
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$ ./firmware-imx-8.9.bin
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$ cp firmware-imx-8.9/firmware/ddr/synopsys/lpddr4*.bin $(builddir)
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Build U-Boot
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^^^^^^^^^^^^
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.. code-block:: bash
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$ make kontron-sl-mx8mm_defconfig
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$ make
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Burn the flash.bin to SD card at an offset of 33 KiB:
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.. code-block:: bash
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$ dd if=flash.bin of=/dev/sd[x] bs=1K seek=33 conv=notrunc
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Boot
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^^^^
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Put the SD card in the slot on the board and apply power.
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Further Information
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-------------------
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The bootloader configuration is setup to be used with kernel FIT images. Legacy
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images might not be working out of the box.
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Please see https://docs.kontron-electronics.de for further vendor documentation.
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