@@ -1,15 +1,14 @@
.. SPDX-License-Identifier: GPL-2.0+
-U-Boot for Amlogic S400
-=======================
+U-Boot for Amlogic S400 (A113X)
+===============================
-S400 is a reference board manufactured by Amlogic with the following
-specifications:
+S400 is a reference board manufactured by Amlogic with the following specifications:
- - Amlogic A113DX ARM Cortex-A53 quad-core SoC @ 1.2GHz
+ - Amlogic A113X ARM Cortex-A53 quad-core SoC @ 1.2GHz
- 1GB DDR4 SDRAM
- 10/100 Ethernet
- - 2 x USB 2.0 Host
+ - 2x USB 2.0 Host
- eMMC
- Infrared receiver
- SDIO WiFi Module
@@ -19,7 +18,7 @@ specifications:
Schematics are available from Amlogic on demand.
-U-Boot compilation
+U-Boot Compilation
------------------
.. code-block:: bash
@@ -28,14 +27,20 @@ U-Boot compilation
$ make s400_defconfig
$ make
-Image creation
---------------
+U-Boot Signing with Pre-Built FIP repo
+--------------------------------------
-For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `s400`
+.. 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 s400 /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 them 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 but sources have been shared by Linux development contractor, Baylibre:
.. code-block:: bash
@@ -65,47 +70,47 @@ Go back to mainline U-boot source tree then :
$ cp u-boot.bin fip/bl33.bin
$ $FIPDIR/blx_fix.sh \
- fip/bl30.bin \
- fip/zero_tmp \
- fip/bl30_zero.bin \
- fip/bl301.bin \
- fip/bl301_zero.bin \
- fip/bl30_new.bin \
- bl30
+ fip/bl30.bin \
+ fip/zero_tmp \
+ fip/bl30_zero.bin \
+ fip/bl301.bin \
+ fip/bl301_zero.bin \
+ fip/bl30_new.bin \
+ bl30
$ $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
$ $FIPDIR/blx_fix.sh \
- fip/bl2_acs.bin \
- fip/zero_tmp \
- fip/bl2_zero.bin \
- fip/bl21.bin \
- fip/bl21_zero.bin \
- fip/bl2_new.bin \
- bl2
+ fip/bl2_acs.bin \
+ fip/zero_tmp \
+ fip/bl2_zero.bin \
+ fip/bl21.bin \
+ fip/bl21_zero.bin \
+ fip/bl2_new.bin \
+ bl2
$ $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl30_new.bin \
- --output fip/bl30_new.bin.enc \
- --level v3 --type bl30
+ --output fip/bl30_new.bin.enc \
+ --level v3 --type bl30
$ $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl31.img \
- --output fip/bl31.img.enc \
- --level v3 --type bl31
+ --output fip/bl31.img.enc \
+ --level v3 --type bl31
$ $FIPDIR/axg/aml_encrypt_axg --bl3sig --input fip/bl33.bin --compress lz4 \
- --output fip/bl33.bin.enc \
- --level v3 --type bl33
+ --output fip/bl33.bin.enc \
+ --level v3 --type bl33
$ $FIPDIR/axg/aml_encrypt_axg --bl2sig --input fip/bl2_new.bin \
- --output fip/bl2.n.bin.sig
+ --output fip/bl2.n.bin.sig
$ $FIPDIR/axg/aml_encrypt_axg --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 --level v3
+ --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 --level v3
-and then write the image to SD 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
Improve documentation. Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> --- doc/board/amlogic/s400.rst | 89 ++++++++++++++++++++------------------ 1 file changed, 47 insertions(+), 42 deletions(-)