Add documentation bits for the Radxa Zero
Signed-off-by: Christian Hewitt christianshewitt@gmail.com --- doc/board/amlogic/index.rst | 3 +- doc/board/amlogic/radxa-zero.rst | 74 ++++++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+), 1 deletion(-) create mode 100644 doc/board/amlogic/radxa-zero.rst
diff --git a/doc/board/amlogic/index.rst b/doc/board/amlogic/index.rst index 2913ab281a..e2ab600f7f 100644 --- a/doc/board/amlogic/index.rst +++ b/doc/board/amlogic/index.rst @@ -17,7 +17,7 @@ This matrix concerns the actual source code version. +===============================+===========+=================+==============+============+============+=============+==============+ | Boards | Odroid-C2 | P212 | Khadas VIM2 | S400 | U200 | Odroid-N2 | SEI610 | | | Nanopi-K2 | Khadas-VIM | Libretech-PC | | SEI510 | Khadas-VIM3 | Khadas-VIM3L | -| | P200 | LibreTech-CC v1 | WeTek Core2 | | | GT-King/Pro | Odroid-C4 | +| | P200 | LibreTech-CC v1 | WeTek Core2 | | Radxa Zero | GT-King/Pro | Odroid-C4 | | | P201 | LibreTech-AC v2 | | | | GSKing-X | Odroid-HC4 | | | | | | | | | BananaPi-M5 | +-------------------------------+-----------+-----------------+--------------+------------+------------+-------------+--------------+ @@ -96,6 +96,7 @@ Board Documentation p201 p212 q200 + radxa-zero s400 sei510 sei610 diff --git a/doc/board/amlogic/radxa-zero.rst b/doc/board/amlogic/radxa-zero.rst new file mode 100644 index 0000000000..423403f3c7 --- /dev/null +++ b/doc/board/amlogic/radxa-zero.rst @@ -0,0 +1,74 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +U-Boot for Radxa Zero +===================== + +Radxa Zero is a small form factor SBC based on the Amlogic S905Y2 +chipset that ships in a number of RAM/eMMC configurations: + +Boards with 512MB/1GB LPDDR4 RAM have no eMMC storage and BCM43436 +wireless (2.4GHz b/g/n) while 2GB/4GB boards have 8/16/32/64/128GB +eMMC storage and BCM4345 wireless (2.4/5GHz a/b/g/n/ac). + +- Amlogic S905Y2 quad-core Cortex-A53 +- Mali G31-MP2 GPU +- HDMI 2.1 output (micro) +- 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 the manufacturer website: + +https://dl.radxa.com/zero/docs/hw/RADAX_ZERO_V13_SCH_20210309.pdf + +U-Boot compilation +------------------ + +.. code-block:: bash + + $ export CROSS_COMPILE=aarch64-none-elf- + $ make radxa-zero_defconfig + $ make + +Image creation +-------------- + +Amlogic does not provide sources for the firmware and for tools needed +to create the bootloader image, so it is necessary to obtain them from +git trees 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/... + $ 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-zero_defconfig + $ make + + $ cp u-boot.bin ../fip/radxa-zero/bl33.bin + $ cd ../fip/radxa-zero + $ make + +This will generate: + +.. code-block:: bash + + $ u-boot.bin u-boot.bin.sd.bin u-boot.bin.usb.bl2 u-boot.bin.usb.tpl + +Then write the image to SD with: + +.. code-block:: bash + + $ DEV=/dev/your_sd_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=444