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- U-Boot for Khadas VIM
- =======================
- Khadas VIM is an Open Source DIY Box manufactured by Shenzhen Wesion
- Technology Co., Ltd with the following specifications:
- - Amlogic S905x ARM Cortex-A53 quad-core SoC @ 2GHz
- - ARM Mali 450 GPU
- - 2GB DDR3 SDRAM
- - 10/100 Ethernet
- - HDMI 2.0 4K/60Hz display
- - 40-pin GPIO header
- - 2 x USB 2.0 Host, 1 x USB 2.0 Type-C OTG
- - 8GB/16GBeMMC
- - microSD
- - SDIO Wifi Module, Bluetooth
- - Two channels IR receiver
- Currently the u-boot port supports the following devices:
- - serial
- - eMMC, microSD
- - Ethernet
- U-Boot compilation
- ==================
- > export ARCH=arm
- > export CROSS_COMPILE=aarch64-none-elf-
- > make khadas-vim_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:$PATH
- > git clone https://github.com/khadas/u-boot -b Vim vim-u-boot
- > cd vim-u-boot
- > make kvim_defconfig
- > make
- > export FIPDIR=$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
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