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Diffstat (limited to 'roms/u-boot/doc/board/toradex/verdin-imx8mm.rst')
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diff --git a/roms/u-boot/doc/board/toradex/verdin-imx8mm.rst b/roms/u-boot/doc/board/toradex/verdin-imx8mm.rst new file mode 100644 index 000000000..b9f7dc39c --- /dev/null +++ b/roms/u-boot/doc/board/toradex/verdin-imx8mm.rst @@ -0,0 +1,98 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Verdin iMX8M Mini Module +======================== + +Quick Start +----------- + +- Build the ARM trusted firmware binary +- Get the DDR firmware +- Build U-Boot +- Flash to eMMC +- Boot + +Get and Build the ARM Trusted Firmware (Trusted Firmware A) +----------------------------------------------------------- + +.. code-block:: bash + + $ echo "Downloading and building TF-A..." + $ git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git + $ cd trusted-firmware-a + +Then build ATF (TF-A): + +.. code-block:: bash + + $ make PLAT=imx8mm IMX_BOOT_UART_BASE=0x30860000 bl31 + $ cp build/imx8mm/release/bl31.bin ../ + +Get the DDR Firmware +-------------------- + +.. code-block:: bash + + $ cd .. + $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.4.1.bin + $ chmod +x firmware-imx-8.4.1.bin + $ ./firmware-imx-8.4.1.bin + $ cp firmware-imx-8.4.1/firmware/ddr/synopsys/lpddr4*.bin ./ + +Build U-Boot +------------ +.. code-block:: bash + + $ export CROSS_COMPILE=aarch64-linux-gnu- + $ export ATF_LOAD_ADDR=0x920000 + $ make verdin-imx8mm_defconfig + $ make flash.bin + +Flash to eMMC +------------- + +.. code-block:: bash + + > tftpboot ${loadaddr} flash.bin + > setexpr blkcnt ${filesize} + 0x1ff && setexpr blkcnt ${blkcnt} / 0x200 + > mmc dev 0 1 && mmc write ${loadaddr} 0x2 ${blkcnt} + +As a convenience, instead of the last two commands one may also use the update +U-Boot wrapper: + +.. code-block:: bash + + > run update_uboot + +Boot +---- + +ATF, U-Boot proper and u-boot.dtb images are packed into FIT image, +which is loaded and parsed by SPL. + +Boot sequence is: + +* SPL ---> ATF (TF-A) ---> U-Boot proper + +Output: + +.. code-block:: bash + + U-Boot SPL 2020.01-00187-gd411d164e5 (Jan 26 2020 - 04:47:26 +0100) + Normal Boot + Trying to boot from MMC1 + + U-Boot 2020.01-00187-gd411d164e5 (Jan 26 2020 - 04:47:26 +0100) + + CPU: Freescale i.MX8MMQ rev1.0 at 0 MHz + Reset cause: POR + DRAM: 2 GiB + MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 + Loading Environment from MMC... OK + In: serial + Out: serial + Err: serial + Model: Toradex Verdin iMX8M Mini Quad 2GB Wi-Fi / BT IT V1.0A, Serial: + Net: eth0: ethernet@30be0000 + Hit any key to stop autoboot: 0 + Verdin iMX8MM # |