100 lines
2.9 KiB
ReStructuredText
100 lines
2.9 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for Amlogic P201
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=======================
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P201 is a reference board manufactured by Amlogic with the following
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specifications:
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- Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz
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- ARM Mali 450 GPU
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- 2GB DDR3 SDRAM
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- 10/100 Ethernet
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- HDMI 2.0 4K/60Hz display
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- 2 x USB 2.0 Host
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- eMMC, microSD
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- Infrared receiver
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- SDIO WiFi Module
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- CVBS+Stereo Audio Jack
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Schematics are available from Amlogic on demand.
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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 p201_defconfig
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$ make
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Image creation
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--------------
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For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `p201`
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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 gxb_p201_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 $FIPDIR/gxb/bl2.bin fip/
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$ cp $FIPDIR/gxb/acs.bin fip/
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$ cp $FIPDIR/gxb/bl21.bin fip/
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$ cp $FIPDIR/gxb/bl30.bin fip/
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$ cp $FIPDIR/gxb/bl301.bin fip/
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$ cp $FIPDIR/gxb/bl31.img fip/
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$ 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 $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
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$ $FIPDIR/blx_fix.sh \
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fip/bl2_acs.bin \
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fip/zero_tmp \
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fip/bl2_zero.bin \
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fip/bl21.bin \
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fip/bl21_zero.bin \
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fip/bl2_new.bin \
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bl2
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$ $FIPDIR/fip_create --bl30 fip/bl30_new.bin --bl31 fip/bl31.img --bl33 fip/bl33.bin fip/fip.bin
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$ cat fip/bl2_new.bin fip/fip.bin >fip/boot_new.bin
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$ $FIPDIR/gxb/aml_encrypt_gxb --bootsig --input fip/boot_new.bin --output fip/u-boot.bin
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and then write the image to SD with:
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.. code-block:: bash
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$ 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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