| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| U-Boot for NanoPi-K2 (S905) |
| =========================== |
| |
| NanoPi-K2 is a single board computer manufactured by FriendlyElec with the following |
| specifications: |
| |
| - Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz |
| - ARM Mali 450 GPU |
| - 2GB DDR3 SDRAM |
| - Gigabit Ethernet |
| - HDMI 2.0 4K/60Hz display |
| - 40-pin GPIO header |
| - 4 x USB 2.0 Host, 1 x USB OTG |
| - eMMC, microSD |
| - Infrared receiver |
| |
| Schematics are available on the manufacturer website. |
| |
| U-Boot Compilation |
| ------------------ |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-none-elf- |
| $ make nanopi-k2_defconfig |
| $ make |
| |
| U-Boot Signing with Pre-Built FIP repo |
| -------------------------------------- |
| |
| .. code-block:: bash |
| |
| $ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1 |
| $ cd amlogic-boot-fip |
| $ mkdir my-output-dir |
| $ ./build-fip.sh nanopi-k2 /path/to/u-boot/u-boot.bin my-output-dir |
| |
| U-Boot Manual Signing |
| --------------------- |
| |
| Amlogic does not provide sources for the firmware and tools needed to create a bootloader |
| image so it is necessary to obtain binaries from sources published by the board vendor: |
| |
| .. code-block:: bash |
| |
| $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz |
| $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz |
| $ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz |
| $ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz |
| $ 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 |
| $ git clone https://github.com/friendlyarm/u-boot.git -b nanopi-k2-v2015.01 amlogic-u-boot |
| $ cd amlogic-u-boot |
| $ sed -i 's/aarch64-linux-gnu-/aarch64-none-elf-/' Makefile |
| $ sed -i 's/arm-linux-/arm-none-eabi-/' arch/arm/cpu/armv8/gxb/firmware/scp_task/Makefile |
| $ make nanopi-k2_defconfig |
| $ make |
| $ export FIPDIR=$PWD/fip |
| |
| Go back to the mainline U-Boot source tree then: |
| |
| .. code-block:: bash |
| |
| $ mkdir fip |
| |
| $ cp $FIPDIR/gxb/bl2.bin fip/ |
| $ cp $FIPDIR/gxb/acs.bin fip/ |
| $ cp $FIPDIR/gxb/bl21.bin fip/ |
| $ cp $FIPDIR/gxb/bl30.bin fip/ |
| $ cp $FIPDIR/gxb/bl301.bin fip/ |
| $ cp $FIPDIR/gxb/bl31.img fip/ |
| $ cp u-boot.bin fip/bl33.bin |
| $ wget https://github.com/LibreELEC/amlogic-boot-fip/raw/master/nanopi-k2/bl1.bin.hardkernel fip/bl1.bin.hardkernel |
| $ chmod +x fip/bl1.bin.hardkernel |
| $ wget https://github.com/LibreELEC/amlogic-boot-fip/raw/master/nanopi-k2/aml_chksum fip/aml_chksum |
| $ chmod +x fip/aml_chksum |
| |
| $ $FIPDIR/blx_fix.sh \ |
| fip/bl30.bin \ |
| fip/zero_tmp \ |
| fip/bl30_zero.bin \ |
| fip/bl301.bin \ |
| fip/bl301_zero.bin \ |
| fip/bl30_new.bin \ |
| bl30 |
| |
| $ $FIPDIR/fip_create --bl30 fip/bl30_new.bin \ |
| --bl31 fip/bl31.img \ |
| --bl33 fip/bl33.bin \ |
| fip/fip.bin |
| |
| $ sed -i 's/\x73\x02\x08\x91/\x1F\x20\x03\xD5/' fip/bl2.bin |
| $ python $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0 |
| |
| $ $FIPDIR/blx_fix.sh \ |
| fip/bl2_acs.bin \ |
| fip/zero_tmp \ |
| fip/bl2_zero.bin \ |
| fip/bl21.bin \ |
| fip/bl21_zero.bin \ |
| fip/bl2_new.bin \ |
| bl2 |
| |
| $ cat fip/bl2_new.bin fip/fip.bin > fip/boot_new.bin |
| |
| $ $FIPDIR/gxb/aml_encrypt_gxb --bootsig \ |
| --input fip/boot_new.bin |
| --output fip/u-boot.bin |
| |
| Then write U-Boot to SD or eMMC with: |
| |
| .. code-block:: bash |
| |
| $ DEV=/dev/boot_device |
| $ dd if=fip/u-boot.bin of=fip/u-boot.bin.gxbb bs=512 conv=fsync |
| $ dd if=fip/u-boot.bin of=fip/u-boot.bin.gxbb bs=512 seek=9 skip=8 count=87 conv=fsync,notrunc |
| $ dd if=/dev/zero of=fip/u-boot.bin.gxbb bs=512 seek=8 count=1 conv=fsync,notrunc |
| $ dd if=bl1.bin.hardkernel of=fip/u-boot.bin.gxbb bs=512 seek=2 skip=2 count=1 conv=fsync,notrunc |
| $ ./aml_chksum fip/u-boot.bin.gxbb |
| $ dd if=fip/u-boot.gxbb of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1 |
| $ dd if=fip/u-boot.gxbb of=$DEV conv=fsync,notrunc bs=1 count=440 |
