2020-06-11 16:53:49 +08:00
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.. SPDX-License-Identifier: GPL-2.0+
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2023-03-20 19:45:51 +08:00
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U-Boot for ODROID-C2 (S905)
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===========================
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2016-05-08 14:30:16 +08:00
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2023-03-20 19:45:51 +08:00
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ODROID-C2 is a single board computer manufactured by Hardkernel with the following
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specifications:
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2016-05-08 14:30:16 +08:00
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2023-03-20 19:45:51 +08:00
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- Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz
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2016-05-08 14:30:16 +08:00
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- ARM Mali 450 GPU
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- 2GB DDR3 SDRAM
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- Gigabit Ethernet
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- HDMI 2.0 4K/60Hz display
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- 40-pin GPIO header
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- 4 x USB 2.0 Host, 1 x USB OTG
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- eMMC, microSD
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- Infrared receiver
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2023-03-20 19:45:51 +08:00
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Schematics are available on the manufacturer website: https://wiki.odroid.com
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2016-05-08 14:30:16 +08:00
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2023-03-20 19:45:51 +08:00
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U-Boot Compilation
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2020-06-11 16:53:49 +08:00
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------------------
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2016-05-08 14:30:16 +08:00
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2020-06-11 16:53:49 +08:00
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.. code-block:: bash
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2016-05-08 14:30:16 +08:00
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2020-06-11 16:53:49 +08:00
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$ export CROSS_COMPILE=aarch64-none-elf-
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$ make odroid-c2_defconfig
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$ make
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2016-05-08 14:30:16 +08:00
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2023-03-20 19:45:51 +08:00
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U-Boot Signing with Pre-Built FIP repo
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--------------------------------------
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2016-05-08 14:30:16 +08:00
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2023-03-20 19:45:51 +08:00
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.. code-block:: bash
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$ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
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$ cd amlogic-boot-fip
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$ mkdir my-output-dir
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$ ./build-fip.sh odroid-c2 /path/to/u-boot/u-boot.bin my-output-dir
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U-Boot Manual Signing
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---------------------
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2022-03-02 17:42:22 +08:00
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2023-03-20 19:45:51 +08:00
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Amlogic does not provide sources for the firmware and tools needed to create a bootloader
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image so it is necessary to obtain binaries from sources published by the board vendor:
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2016-05-08 14:30:16 +08:00
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2020-06-11 16:53:49 +08:00
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.. code-block:: bash
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$ DIR=odroid-c2
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$ git clone --depth 1 https://github.com/hardkernel/u-boot.git -b odroidc2-v2015.01 $DIR
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2020-06-11 16:53:49 +08:00
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$ $DIR/fip/fip_create --bl30 $DIR/fip/gxb/bl30.bin \
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--bl301 $DIR/fip/gxb/bl301.bin \
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--bl31 $DIR/fip/gxb/bl31.bin \
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--bl33 u-boot.bin \
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$DIR/fip.bin
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2020-06-11 16:53:49 +08:00
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$ $DIR/fip/fip_create --dump $DIR/fip.bin
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$ cat $DIR/fip/gxb/bl2.package $DIR/fip.bin > $DIR/boot_new.bin
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$ $DIR/fip/gxb/aml_encrypt_gxb --bootsig \
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--input $DIR/boot_new.bin \
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--output $DIR/u-boot.img
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$ dd if=$DIR/u-boot.img of=$DIR/u-boot.gxbb bs=512 skip=96
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2016-05-08 14:30:16 +08:00
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2023-03-20 19:45:51 +08:00
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Then write U-Boot to SD or eMMC with:
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2016-05-08 14:30:16 +08:00
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2020-06-11 16:53:49 +08:00
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.. code-block:: bash
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2023-03-20 19:45:51 +08:00
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$ DEV=/dev/your_boot_device
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$ BL1=$DIR/sd_fuse/bl1.bin.hardkernel
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$ dd if=$BL1 of=$DEV conv=fsync bs=1 count=442
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$ dd if=$BL1 of=$DEV conv=fsync bs=512 skip=1 seek=1
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$ dd if=$DIR/u-boot.gxbb of=$DEV conv=fsync bs=512 seek=97
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