Files
Linux_Drivers/u-boot-2021.10/doc/board/amlogic/odroid-c2.rst
sam.xiang f8fc109960 [uboot] create uboot from github:
repo: https://github.com/u-boot/u-boot
	commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91

Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
2023-03-10 20:30:57 +08:00

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ReStructuredText

.. SPDX-License-Identifier: GPL-2.0+
U-Boot for ODROID-C2
====================
ODROID-C2 is a single board computer manufactured by Hardkernel
Co. Ltd with the following specifications:
- Amlogic S905 ARM Cortex-A53 quad-core SoC @ 2GHz
- ARM Mali 450 GPU
- 2GB DDR3 SDRAM
- Gigabit Ethernet
- HDMI 2.0 4K/60Hz display
- 40-pin GPIO header
- 4 x USB 2.0 Host, 1 x USB OTG
- eMMC, microSD
- Infrared receiver
Schematics are available on the manufacturer website.
U-Boot compilation
------------------
.. code-block:: bash
$ export CROSS_COMPILE=aarch64-none-elf-
$ make odroid-c2_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:
.. code-block:: bash
$ DIR=odroid-c2
$ git clone --depth 1 \
https://github.com/hardkernel/u-boot.git -b odroidc2-v2015.01 \
$DIR
$ $DIR/fip/fip_create --bl30 $DIR/fip/gxb/bl30.bin \
--bl301 $DIR/fip/gxb/bl301.bin \
--bl31 $DIR/fip/gxb/bl31.bin \
--bl33 u-boot.bin \
$DIR/fip.bin
$ $DIR/fip/fip_create --dump $DIR/fip.bin
$ cat $DIR/fip/gxb/bl2.package $DIR/fip.bin > $DIR/boot_new.bin
$ $DIR/fip/gxb/aml_encrypt_gxb --bootsig \
--input $DIR/boot_new.bin \
--output $DIR/u-boot.img
$ dd if=$DIR/u-boot.img of=$DIR/u-boot.gxbb bs=512 skip=96
and then write the image to SD with:
.. code-block:: bash
$ DEV=/dev/your_sd_device
$ BL1=$DIR/sd_fuse/bl1.bin.hardkernel
$ dd if=$BL1 of=$DEV conv=fsync bs=1 count=442
$ dd if=$BL1 of=$DEV conv=fsync bs=512 skip=1 seek=1
$ dd if=$DIR/u-boot.gxbb of=$DEV conv=fsync bs=512 seek=97