Improve documentation.
Signed-off-by: Christian Hewitt christianshewitt@gmail.com --- doc/board/amlogic/jethub-j80.rst | 46 ++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 20 deletions(-)
diff --git a/doc/board/amlogic/jethub-j80.rst b/doc/board/amlogic/jethub-j80.rst index f669a0118d..d20fbad4c5 100644 --- a/doc/board/amlogic/jethub-j80.rst +++ b/doc/board/amlogic/jethub-j80.rst @@ -1,10 +1,10 @@ .. SPDX-License-Identifier: GPL-2.0+
-U-Boot for JetHub J80 -====================== +U-Boot for JetHub J80 (S905W) +=============================
-JetHome Jethub H1 (http://jethome.ru/jethub-h1) is a home automation -controller manufactured by JetHome with the following specifications: +JetHome Jethub H1 (http://jethome.ru/jethub-h1) is a home automation controller device +manufactured by JetHome with the following specifications:
- Amlogic S905W (ARM Cortex-A53) quad-core up to 1.5GHz - No video out @@ -21,7 +21,7 @@ controller manufactured by JetHome with the following specifications: - DC source 5V microUSB - Square plastic case
-U-Boot compilation +U-Boot Compilation ------------------
.. code-block:: bash @@ -30,14 +30,20 @@ U-Boot compilation $ make jethub_j80_defconfig $ make
-Image creation --------------- +U-Boot Signing with Pre-Built FIP repo +--------------------------------------
-For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `jethub-j80` +.. 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 jethub-j80 /path/to/u-boot/u-boot.bin my-output-dir + +U-Boot Manual Signing +---------------------
-Amlogic doesn't provide sources for the firmware and for tools needed -to create the bootloader image, so it is necessary to obtain binaries -from the git tree published by the board vendor: +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
@@ -45,7 +51,7 @@ from the git tree published by the board vendor: $ cd jethub-u-boot $ export FIPDIR=$PWD
-Go back to mainline U-Boot source tree then : +Go back to the mainline U-Boot source tree then:
.. code-block:: bash
@@ -84,16 +90,16 @@ Go back to mainline U-Boot source tree then : $ $FIPDIR/j80/aml_encrypt_gxl --bl3enc --input fip/bl33.bin --compress lz4 $ $FIPDIR/j80/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig $ $FIPDIR/j80/aml_encrypt_gxl --bootmk \ - --output fip/u-boot.bin \ - --bl2 fip/bl2.n.bin.sig \ - --bl30 fip/bl30_new.bin.enc \ - --bl31 fip/bl31.img.enc \ - --bl33 fip/bl33.bin.enc + --output fip/u-boot.bin \ + --bl2 fip/bl2.n.bin.sig \ + --bl30 fip/bl30_new.bin.enc \ + --bl31 fip/bl31.img.enc \ + --bl33 fip/bl33.bin.enc
-and then write the image to SD/eMMC with: +Then write U-Boot to SD or eMMC with:
.. 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=1 count=444 + $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440