2020-06-11 08:53:49 +00:00
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.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for NanoPi-K2
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====================
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NanoPi-K2 is a single board computer manufactured by FriendlyElec
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with the following specifications:
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- Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz
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- ARM Mali 450 GPU
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- 2GB DDR3 SDRAM
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- Gigabit Ethernet
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- HDMI 2.0 4K/60Hz display
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- 40-pin GPIO header
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- 4 x USB 2.0 Host, 1 x USB OTG
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- eMMC, microSD
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- Infrared receiver
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Schematics are available on the manufacturer website.
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U-Boot compilation
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------------------
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.. code-block:: bash
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$ export CROSS_COMPILE=aarch64-none-elf-
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$ make nanopi-k2_defconfig
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$ make
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Image creation
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--------------
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2022-03-02 09:42:22 +00:00
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For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `nanopi-k2`
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2020-06-11 08:53:49 +00:00
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Amlogic doesn't provide sources for the firmware and for tools needed
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to create the bootloader image, so it is necessary to obtain them from
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the git tree published by the board vendor:
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.. code-block:: bash
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$ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
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$ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
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$ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
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$ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
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$ export PATH=$PWD/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin:$PWD/gcc-linaro-arm-none-eabi-4.8-2013.11_linux/bin:$PATH
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$ git clone https://github.com/BayLibre/u-boot.git -b libretech-cc amlogic-u-boot
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$ git clone https://github.com/friendlyarm/u-boot.git -b nanopi-k2-v2015.01 amlogic-u-boot
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$ cd amlogic-u-boot
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$ sed -i 's/aarch64-linux-gnu-/aarch64-none-elf-/' Makefile
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$ sed -i 's/arm-linux-/arm-none-eabi-/' arch/arm/cpu/armv8/gxb/firmware/scp_task/Makefile
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$ make nanopi-k2_defconfig
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$ make
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$ export FIPDIR=$PWD/fip
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Go back to mainline U-Boot source tree then :
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.. code-block:: bash
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$ mkdir fip
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$ cp $FIPDIR/gxb/bl2.bin fip/
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$ cp $FIPDIR/gxb/acs.bin fip/
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$ cp $FIPDIR/gxb/bl21.bin fip/
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$ cp $FIPDIR/gxb/bl30.bin fip/
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$ cp $FIPDIR/gxb/bl301.bin fip/
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$ cp $FIPDIR/gxb/bl31.img fip/
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$ cp u-boot.bin fip/bl33.bin
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$ $FIPDIR/blx_fix.sh \
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fip/bl30.bin \
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fip/zero_tmp \
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fip/bl30_zero.bin \
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fip/bl301.bin \
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fip/bl301_zero.bin \
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fip/bl30_new.bin \
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bl30
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$ $FIPDIR/fip_create \
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--bl30 fip/bl30_new.bin \
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--bl31 fip/bl31.img \
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--bl33 fip/bl33.bin \
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fip/fip.bin
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$ python $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
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$ $FIPDIR/blx_fix.sh \
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fip/bl2_acs.bin \
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fip/zero_tmp \
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fip/bl2_zero.bin \
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fip/bl21.bin \
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fip/bl21_zero.bin \
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fip/bl2_new.bin \
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bl2
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$ cat fip/bl2_new.bin fip/fip.bin > fip/boot_new.bin
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$ $FIPDIR/gxb/aml_encrypt_gxb --bootsig \
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--input fip/boot_new.bin
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--output fip/u-boot.bin
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and then write the image to SD with:
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.. code-block:: bash
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$ DEV=/dev/your_sd_device
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$ dd if=fip/u-boot.bin of=$DEV conv=fsync,notrunc bs=512 seek=1
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