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As already documented in this README, several binaries must be glued together in order to boot the device. Extend the documentation to cover the prebuilt binaries (saving you the hassle of installing ancient cross-compilers), and also mention the open source replacements for the encryption tool (which is especially useful if you want to avoid requiring 32-bit x86 binaries in your build system). Signed-off-by: Daniel Drake <drake@endlessm.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> |
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| MAINTAINERS | ||
| Makefile | ||
| p212.c | ||
| README.khadas-vim | ||
| README.libretech-ac | ||
| README.libretech-cc | ||
| README.p212 | ||
U-Boot for Amlogic P212 ======================= P212 is a reference board manufactured by Amlogic with the following specifications: - Amlogic S905X ARM Cortex-A53 quad-core SoC @ 1.5GHz - ARM Mali 450 GPU - 2GB DDR3 SDRAM - 10/100 Ethernet - HDMI 2.0 4K/60Hz display - 2 x USB 2.0 Host - eMMC, microSD - Infrared receiver - SDIO WiFi Module - CVBS+Stereo Audio Jack Schematics are available from Amlogic on demand. Currently the u-boot port supports the following devices: - serial - eMMC, microSD - Ethernet - I2C - Regulators - Reset controller - Clock controller - USB Host - ADC u-boot compilation ================== > export ARCH=arm > export CROSS_COMPILE=aarch64-none-elf- > make p212_defconfig > make Image creation ============== Amlogic doesn't provide sources for the firmware and for tools needed to create the bootloader image, so it is necessary to obtain them from the git tree published by the board vendor: > 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:$PATH > git clone https://github.com/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot > cd amlogic-u-boot > make gxl_p212_v1_defconfig > make > export FIPDIR=$PWD/fip Go back to mainline U-boot source tree then : > mkdir fip > cp $FIPDIR/gxl/bl2.bin fip/ > cp $FIPDIR/gxl/acs.bin fip/ > cp $FIPDIR/gxl/bl21.bin fip/ > cp $FIPDIR/gxl/bl30.bin fip/ > cp $FIPDIR/gxl/bl301.bin fip/ > cp $FIPDIR/gxl/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/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin > $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig > $FIPDIR/gxl/aml_encrypt_gxl --bootmk \ --output fip/u-boot.bin \ --bl2 fip/bl2.n.bin.sig \ --bl30 fip/bl30_new.bin.enc \ --bl31 fip/bl31.img.enc \ --bl33 fip/bl33.bin.enc and then write the image to SD with: > DEV=/dev/your_sd_device > dd if=fip/u-boot.bin.sd.bin of=$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=444