1U-Boot for Amlogic P212 2======================= 3 4P212 is a reference board manufactured by Amlogic with the following 5specifications: 6 7 - Amlogic S905X ARM Cortex-A53 quad-core SoC @ 1.5GHz 8 - ARM Mali 450 GPU 9 - 2GB DDR3 SDRAM 10 - 10/100 Ethernet 11 - HDMI 2.0 4K/60Hz display 12 - 2 x USB 2.0 Host 13 - eMMC, microSD 14 - Infrared receiver 15 - SDIO WiFi Module 16 - CVBS+Stereo Audio Jack 17 18Schematics are available from Amlogic on demand. 19 20Currently the u-boot port supports the following devices: 21 - serial 22 - eMMC, microSD 23 24u-boot compilation 25================== 26 27 > export ARCH=arm 28 > export CROSS_COMPILE=aarch64-none-elf- 29 > make p212_defconfig 30 > make 31 32Image creation 33============== 34 35Amlogic doesn't provide sources for the firmware and for tools needed 36to create the bootloader image, so it is necessary to obtain them from 37the git tree published by the board vendor: 38 39 > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz 40 > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz 41 > tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz 42 > tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz 43 > 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:$PATH 44 > git clone https://github.com/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot 45 > cd amlogic-u-boot 46 > make gxl_p212_v1_defconfig 47 > make 48 > export FIPDIR=$PWD/fip 49 50Go back to mainline U-boot source tree then : 51 > mkdir fip 52 53 > cp $FIPDIR/gxl/bl2.bin fip/ 54 > cp $FIPDIR/gxl/acs.bin fip/ 55 > cp $FIPDIR/gxl/bl21.bin fip/ 56 > cp $FIPDIR/gxl/bl30.bin fip/ 57 > cp $FIPDIR/gxl/bl301.bin fip/ 58 > cp $FIPDIR/gxl/bl31.img fip/ 59 > cp u-boot.bin fip/bl33.bin 60 61 > $FIPDIR/blx_fix.sh \ 62 fip/bl30.bin \ 63 fip/zero_tmp \ 64 fip/bl30_zero.bin \ 65 fip/bl301.bin \ 66 fip/bl301_zero.bin \ 67 fip/bl30_new.bin \ 68 bl30 69 70 > $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0 71 72 > $FIPDIR/blx_fix.sh \ 73 fip/bl2_acs.bin \ 74 fip/zero_tmp \ 75 fip/bl2_zero.bin \ 76 fip/bl21.bin \ 77 fip/bl21_zero.bin \ 78 fip/bl2_new.bin \ 79 bl2 80 81 > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin 82 > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img 83 > $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin 84 > $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig 85 > $FIPDIR/gxl/aml_encrypt_gxl --bootmk \ 86 --output fip/u-boot.bin \ 87 --bl2 fip/bl2.n.bin.sig \ 88 --bl30 fip/bl30_new.bin.enc \ 89 --bl31 fip/bl31.img.enc \ 90 --bl33 fip/bl33.bin.enc 91 92and then write the image to SD with: 93 94 > DEV=/dev/your_sd_device 95 > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1 96 > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444 97