mirror of
https://github.com/AsahiLinux/u-boot
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98 lines
2.7 KiB
ReStructuredText
98 lines
2.7 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0+
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U-Boot for JetHub J80
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======================
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JetHome Jethub H1 (http://jethome.ru/jethub-h1) is a home automation
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controller manufactured by JetHome with the following specifications:
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- Amlogic S905W (ARM Cortex-A53) quad-core up to 1.5GHz
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- No video out
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- 1GB DDR3
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- 8/16GB eMMC flash
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- 2 x USB 2.0
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- 1 x 10/100Mbps ethernet
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- SDIO WiFi / Bluetooth RTL8822CS IEEE 802.11a/b/g/n/ac, Bluetooth 5.0.
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- TI CC2538 + CC2592 Zigbee Wireless Module with up to 20dBm output
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power and Zigbee 3.0 support.
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- MicroSD 2.x/3.x/4.x DS/HS cards.
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- 1 x gpio LED
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- ADC user Button
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- DC source 5V microUSB
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- Square plastic case
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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 jethub_j80_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 binaries
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from the git tree published by the board vendor:
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.. code-block:: bash
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$ git clone https://github.com/jethome-ru/jethub-aml-tools jethub-u-boot
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$ cd jethub-u-boot
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$ export FIPDIR=$PWD
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Go back to mainline U-Boot source tree then :
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.. code-block:: bash
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$ mkdir fip
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$ cp $FIPDIR/j80/bl2.bin fip/
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$ cp $FIPDIR/j80/acs.bin fip/
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$ cp $FIPDIR/j80/bl21.bin fip/
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$ cp $FIPDIR/j80/bl30.bin fip/
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$ cp $FIPDIR/j80/bl301.bin fip/
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$ cp $FIPDIR/j80/bl31.img fip/
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$ 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 $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
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$ $FIPDIR/blx_fix.sh \
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fip/bl2_acs.bin \
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fip/zero_tmp \
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fip/bl2_zero.bin \
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fip/bl21.bin \
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fip/bl21_zero.bin \
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fip/bl2_new.bin \
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bl2
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$ $FIPDIR/j80/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
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$ $FIPDIR/j80/aml_encrypt_gxl --bl3enc --input fip/bl31.img
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$ $FIPDIR/j80/aml_encrypt_gxl --bl3enc --input fip/bl33.bin --compress lz4
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$ $FIPDIR/j80/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
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$ $FIPDIR/j80/aml_encrypt_gxl --bootmk \
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--output fip/u-boot.bin \
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--bl2 fip/bl2.n.bin.sig \
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--bl30 fip/bl30_new.bin.enc \
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--bl31 fip/bl31.img.enc \
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--bl33 fip/bl33.bin.enc
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and then write the image to SD/eMMC with:
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.. code-block:: bash
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$ 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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