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			3.0 KiB
		
	
	
	
		
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			102 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			ReStructuredText
		
	
	
	
.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for Amlogic Q200
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=======================
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Q200 is a reference board manufactured by Amlogic with the following
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specifications:
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 - Amlogic S912 ARM Cortex-A53 octo-core SoC @ 1.5GHz
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 - ARM Mali T860 GPU
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 - 2/3GB DDR4 SDRAM
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 - 10/100/1000 Ethernet
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 - HDMI 2.0 4K/60Hz display
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 - 2 x USB 2.0 Host, 1 x USB 2.0 Device
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 - 16GB/32GB/64GB eMMC
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 - 2MB SPI Flash
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 - microSD
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 - SDIO Wifi Module, Bluetooth
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 - IR receiver
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U-Boot compilation
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------------------
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.. code-block:: bash
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    $ export CROSS_COMPILE=aarch64-none-elf-
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    $ make khadas-vim2_defconfig
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    $ make
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Image creation
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--------------
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Amlogic doesn't provide sources for the firmware and for tools needed
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to create the bootloader image, so it is necessary to obtain them from
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the git tree published by the board vendor:
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.. code-block:: bash
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    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
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    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
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    $ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
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    $ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
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    $ 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
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    $ git clone https://github.com/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot
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    $ cd amlogic-u-boot
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    $ make gxm_q200_v1_defconfig
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    $ make
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    $ export FIPDIR=$PWD/fip
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Go back to mainline U-Boot source tree then :
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.. code-block:: bash
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    $ mkdir fip
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    $ cp $FIPDIR/gxl/bl2.bin fip/
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    $ cp $FIPDIR/gxl/acs.bin fip/
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    $ cp $FIPDIR/gxl/bl21.bin fip/
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    $ cp $FIPDIR/gxl/bl30.bin fip/
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    $ cp $FIPDIR/gxl/bl301.bin fip/
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    $ cp $FIPDIR/gxl/bl31.img fip/
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    $ cp u-boot.bin fip/bl33.bin
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    $ $FIPDIR/blx_fix.sh \
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    	fip/bl30.bin \
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    	fip/zero_tmp \
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    	fip/bl30_zero.bin \
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    	fip/bl301.bin \
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    	fip/bl301_zero.bin \
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    	fip/bl30_new.bin \
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    	bl30
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    $ python $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
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    $ $FIPDIR/blx_fix.sh \
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    	fip/bl2_acs.bin \
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    	fip/zero_tmp \
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    	fip/bl2_zero.bin \
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    	fip/bl21.bin \
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    	fip/bl21_zero.bin \
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    	fip/bl2_new.bin \
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    	bl2
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    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
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    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
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    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
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    $ $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
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    $ $FIPDIR/gxl/aml_encrypt_gxl --bootmk \
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    		--output fip/u-boot.bin \
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    		--bl2 fip/bl2.n.bin.sig \
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    		--bl30 fip/bl30_new.bin.enc \
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    		--bl31 fip/bl31.img.enc \
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    		--bl33 fip/bl33.bin.enc
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and then write the image to SD with:
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.. code-block:: bash
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    $ DEV=/dev/your_sd_device
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    $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
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    $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444
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