mirror of
https://github.com/AsahiLinux/u-boot
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57 lines
1.1 KiB
ReStructuredText
57 lines
1.1 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0+
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imx8mn_var_som
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==============
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U-Boot for the Variscite VAR-SOM-MX8MN Symphony evaluation board
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Quick Start
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-----------
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- Build the ARM Trusted firmware binary
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- Get firmware-imx package
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- Build U-Boot
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- Boot
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Get and Build the ARM Trusted firmware
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--------------------------------------
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Note: srctree is U-Boot source directory
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Get ATF from: https://github.com/ARM-software/arm-trusted-firmware
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tag: v2.5
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.. code-block:: bash
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$ make PLAT=imx8mn IMX_BOOT_UART_BASE=0x30a60000 bl31
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$ cp build/imx8mn/release/bl31.bin $(srctree)
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Get the ddr firmware
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--------------------
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.. code-block:: bash
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$ 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
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$ cp firmware-imx-8.9/firmware/ddr/synopsys/ddr4*.bin $(srctree)
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Build U-Boot
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------------
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.. code-block:: bash
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$ export CROSS_COMPILE=aarch64-linux-gnu-
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$ make imx8mn_var_som_defconfig
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$ make
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Burn the flash.bin to MicroSD card offset 32KB:
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.. code-block:: bash
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$ dd if=flash.bin of=/dev/sd[x] bs=1024 seek=32 conv=notrunc
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Boot
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----
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Set Boot switch to SD boot
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