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doc: boards: amlogic: update documentation for Khadas VIM

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Improve documentation.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Link: https://lore.kernel.org/r/20230320114609.930145-9-christianshewitt@gmail.com
[narmstrong: fixed doc build]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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Christian Hewitt 2023-03-20 11:45:44 +00:00 committed by Neil Armstrong
parent 042048dc8d
commit bd488399f1
1 changed files with 42 additions and 35 deletions
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doc/board/amlogic/khadas-vim.rst
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@ -1,24 +1,24 @@
.. SPDX-License-Identifier: GPL-2.0+ .. SPDX-License-Identifier: GPL-2.0+
U-Boot for Khadas VIM U-Boot for Khadas VIM (S905X)
====================== =============================
Khadas VIM is an Open Source DIY Box manufactured by Shenzhen Wesion Khadas VIM is a Single Board Computer manufactured by Shenzhen Wesion Technology Co. Ltd
Technology Co., Ltd with the following specifications: with the following specifications:
- Amlogic S905X ARM Cortex-A53 quad-core SoC @ 1.5GHz - Amlogic S905X ARM Cortex-A53 quad-core SoC @ 1.5GHz
- ARM Mali 450 GPU - ARM Mali 450 GPU
- 2GB DDR3 SDRAM - 2GB DDR3 SDRAM
- 8GB/16GB eMMC
- 10/100 Ethernet - 10/100 Ethernet
- HDMI 2.0 4K/60Hz display - HDMI 2.0 4K/60Hz display
- 40-pin GPIO header - 40-pin GPIO header
- 2 x USB 2.0 Host, 1 x USB 2.0 Type-C OTG - 2 x USB 2.0 Host, 1 x USB 2.0 Type-C OTG
- 8GB/16GBeMMC
- microSD - microSD
- SDIO Wifi Module, Bluetooth - SDIO Wifi Module, Bluetooth
- Two channels IR receiver - Two channel IR receiver
U-Boot compilation U-Boot Compilation
------------------ ------------------
.. code-block:: bash .. code-block:: bash
@ -27,14 +27,21 @@ U-Boot compilation
$ make khadas-vim_defconfig $ make khadas-vim_defconfig
$ make $ make
Image creation U-Boot Signing with Pre-Built FIP repo
-------------- --------------------------------------
For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `khadas-vim` .. code-block:: bash
Amlogic doesn't provide sources for the firmware and for tools needed $ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
to create the bootloader image, so it is necessary to obtain them from $ cd amlogic-boot-fip
the git tree published by the board vendor: $ mkdir my-output-dir
$ ./build-fip.sh khadas-vim /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 .. code-block:: bash
@ -94,10 +101,10 @@ Go back to mainline U-Boot source tree then :
--bl31 fip/bl31.img.enc \ --bl31 fip/bl31.img.enc \
--bl33 fip/bl33.bin.enc --bl33 fip/bl33.bin.enc
and then write the image to SD with: Then write U-Boot to SD or eMMC with:
.. code-block:: bash .. code-block:: bash
$ DEV=/dev/your_sd_device $ 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=512 skip=1 seek=1
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444 $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440