| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| U-Boot for Amlogic S400 (A113X) |
| =============================== |
| |
| S400 is a reference board manufactured by Amlogic with the following specifications: |
| |
| - Amlogic A113X ARM Cortex-A53 quad-core SoC @ 1.2GHz |
| - 1GB DDR4 SDRAM |
| - 10/100 Ethernet |
| - 2x USB 2.0 Host |
| - eMMC |
| - Infrared receiver |
| - SDIO WiFi Module |
| - MIPI DSI Connector |
| - Audio HAT Connector |
| - PCI-E M.2 Connectors |
| |
| Schematics are available from Amlogic on demand. |
| |
| U-Boot Compilation |
| ------------------ |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-none-elf- |
| $ make s400_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 s400 /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 but sources have been shared by Linux development contractor, Baylibre: |
| |
| .. 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/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot |
| $ cd amlogic-u-boot |
| $ make axg_s400_v1_defconfig |
| $ make |
| $ export FIPDIR=$PWD/fip |
| |
| Go back to mainline U-boot source tree then : |
| |
| .. code-block:: bash |
| |
| $ mkdir fip |
| |
| $ cp $FIPDIR/axg/bl2.bin fip/ |
| $ cp $FIPDIR/axg/acs.bin fip/ |
| $ cp $FIPDIR/axg/bl21.bin fip/ |
| $ cp $FIPDIR/axg/bl30.bin fip/ |
| $ cp $FIPDIR/axg/bl301.bin fip/ |
| $ cp $FIPDIR/axg/bl31.img fip/ |
| $ cp u-boot.bin fip/bl33.bin |
| |
| $ $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/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 |
| |
| $ $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl30_new.bin \ |
| --output fip/bl30_new.bin.enc \ |
| --level v3 --type bl30 |
| $ $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl31.img \ |
| --output fip/bl31.img.enc \ |
| --level v3 --type bl31 |
| $ $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl33.bin --compress lz4 \ |
| --output fip/bl33.bin.enc \ |
| --level v3 --type bl33 |
| $ $FIPDIR/axg/aml_encrypt_axg --bl2sig --input fip/bl2_new.bin \ |
| --output fip/bl2.n.bin.sig |
| $ $FIPDIR/axg/aml_encrypt_axg --bootmk \ |
| --output fip/u-boot.bin \ |
| --bl2 fip/bl2.n.bin.sig \ |
| --bl30 fip/bl30_new.bin.enc \ |
| --bl31 fip/bl31.img.enc \ |
| --bl33 fip/bl33.bin.enc --level v3 |
| |
| Then write U-Boot to SD or eMMC with: |
| |
| .. code-block:: bash |
| |
| $ DEV=/dev/boot_device |
| $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1 |
| $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440 |