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doc: boards: amlogic: add documentation for Radxa Zero2

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Add build docs for the Radxa Zero2 board.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230323143142.780306-12-christianshewitt@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Christian Hewitt 2023-03-23 14:31:39 +00:00 committed by Neil Armstrong
parent 00fa30b607
commit 1aaab6d700
3 changed files with 83 additions and 0 deletions
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2
board/amlogic/w400/MAINTAINERS
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@ -5,6 +5,8 @@ L: u-boot-amlogic@groups.io
F: board/amlogic/w400/
F: configs/bananapi-cm4-cm4io_defconfig
F: configs/bananapi-m2s_defconfig
F: configs/radxa-zero2_defconfig
F: doc/board/amlogic/w400.rst
F: doc/board/amlogic/bananapi-cm4io.rst
F: doc/board/amlogic/bananapi-m2s.rst
F: doc/board/amlogic/radxa-zero2.rst

1
doc/board/amlogic/index.rst
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@ -112,6 +112,7 @@ Board Documentation
p212
q200
radxa-zero
radxa-zero2
sei510
sei610
s400

80
doc/board/amlogic/radxa-zero2.rst Normal file
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@ -0,0 +1,80 @@
.. SPDX-License-Identifier: GPL-2.0+
U-Boot for Radxa Zero2 (A311D)
==============================
Radxa Zero2 is a small form factor SBC based on the Amlogic A311D chipset with the
following specification:
- Amlogic A311D (Quad A73 + Dual A53) CPU
- 4GB LPDDR4 RAM
- 32/64/128GB eMMC
- Mali G52-MP4 GPU
- HDMI 2.1 output (micro)
- BCM4345 WiFi (2.4/5GHz a/b/g/n/ac) and BT 5.0
- 1x USB 2.0 port - Type C (OTG)
- 1x USB 3.0 port - Type C (Host)
- 1x micro SD Card slot
- 40 Pin GPIO header
Schematics are available on request from Radxa.
U-Boot Compilation
------------------
.. code-block:: bash
$ export CROSS_COMPILE=aarch64-none-elf-
$ make radxa-zero2_defconfig
$ make
U-Boot Signing with Pre-Built FIP repo
--------------------------------------
.. code-block:: bash
$ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
$ cd amlogic-boot-fip
$ mkdir my-output-dir
$ ./build-fip.sh radxa-zero2 /path/to/u-boot/u-boot.bin my-output-dir
U-Boot Manual Signing
---------------------
Amlogic does not provide sources for the firmware and tools needed to create a bootloader
image so it is necessary to obtain binaries from sources published by the board vendor:
.. code-block:: bash
$ git clone -b radxa-zero-v2021.07 https://github.com/radxa/u-boot.git
$ git clone https://github.com/radxa/fip.git
$ sudo apt-get install -y gcc-aarch64-linux-gnu device-tree-compiler libncurses5 libncurses5-dev
$ sudo apt-get install -y bc python dosfstools flex build-essential libssl-dev mtools
$ wget https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz
$ sudo tar xvf gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz -C /opt
$ export CROSS_COMPILE=/opt/gcc-arm-10.2-2020.11-x86_64-aarch64-none-elf/bin/aarch64-none-elf-
$ export ARCH=arm
$ cd u-boot
$ make radxa-zero2_defconfig
$ make
$ cp u-boot.bin ../fip/radxa-zero2/bl33.bin
$ cd ../fip/radxa-zero2
$ make
This will generate the signed U-Boot binaries:
.. code-block:: bash
$ u-boot.bin u-boot.bin.sd.bin u-boot.bin.usb.bl2 u-boot.bin.usb.tpl
Then write U-Boot to SD or eMMC with:
.. code-block:: bash
$ DEV=/dev/boot_device
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440