Improve documentation. Notably we can now support U-Boot install to the internal eMMC storage in addition to SD cards.
Signed-off-by: Christian Hewitt christianshewitt@gmail.com --- doc/board/amlogic/p201.rst | 87 +++++++++++++++++++++++--------------- 1 file changed, 53 insertions(+), 34 deletions(-)
diff --git a/doc/board/amlogic/p201.rst b/doc/board/amlogic/p201.rst index 2cd236582a..b3dce4204e 100644 --- a/doc/board/amlogic/p201.rst +++ b/doc/board/amlogic/p201.rst @@ -1,25 +1,24 @@ .. SPDX-License-Identifier: GPL-2.0+
-U-Boot for Amlogic P201 -======================= +U-Boot for Amlogic P201 (S905) +==============================
-P201 is a reference board manufactured by Amlogic with the following -specifications: +P201 is a reference board manufactured by Amlogic with the following specifications:
- Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz - ARM Mali 450 GPU - 2GB DDR3 SDRAM - 10/100 Ethernet - HDMI 2.0 4K/60Hz display - - 2 x USB 2.0 Host + - 2x USB 2.0 Host - eMMC, microSD - Infrared receiver - SDIO WiFi Module - - CVBS+Stereo Audio Jack + - CVBS + Stereo Audio Jack
Schematics are available from Amlogic on demand.
-U-Boot compilation +U-Boot Compilation ------------------
.. code-block:: bash @@ -28,14 +27,20 @@ U-Boot compilation $ make p201_defconfig $ make
-Image creation --------------- +U-Boot Signing with Pre-Built FIP repo +--------------------------------------
-For simplified usage, pleaser refer to :doc:`pre-generated-fip` with codename `p201` +.. 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 p201 /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
@@ -63,37 +68,51 @@ Go back to mainline U-boot source tree then : $ cp $FIPDIR/gxb/bl301.bin fip/ $ cp $FIPDIR/gxb/bl31.img fip/ $ cp u-boot.bin fip/bl33.bin + $ wget https://github.com/LibreELEC/amlogic-boot-fip/raw/master/nanopi-k2/bl1.bin.h... fip/bl1.bin.hardkernel + $ chmod +x fip/bl1.bin.hardkernel + $ wget https://github.com/LibreELEC/amlogic-boot-fip/raw/master/nanopi-k2/aml_chksu... fip/aml_chksum + $ chmod +x fip/aml_chksum
$ $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
$ python $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 - - $ $FIPDIR/fip_create --bl30 fip/bl30_new.bin --bl31 fip/bl31.img --bl33 fip/bl33.bin fip/fip.bin + fip/bl2_acs.bin \ + fip/zero_tmp \ + fip/bl2_zero.bin \ + fip/bl21.bin \ + fip/bl21_zero.bin \ + fip/bl2_new.bin \ + bl2 + + $ $FIPDIR/fip_create --bl30 fip/bl30_new.bin \ + --bl31 fip/bl31.img \ + --bl33 fip/bl33.bin \ + fip/fip.bin
$ cat fip/bl2_new.bin fip/fip.bin >fip/boot_new.bin
- $ $FIPDIR/gxb/aml_encrypt_gxb --bootsig --input fip/boot_new.bin --output fip/u-boot.bin + $ $FIPDIR/gxb/aml_encrypt_gxb --bootsig \ + --input fip/boot_new.bin \ + --output fip/u-boot.bin
-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 - $ 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 + $ DEV=/dev/boot_device + $ dd if=fip/u-boot.bin of=fip/u-boot.bin.gxbb bs=512 conv=fsync + $ dd if=fip/u-boot.bin of=fip/u-boot.bin.gxbb bs=512 seek=9 skip=8 count=87 conv=fsync,notrunc + $ dd if=/dev/zero of=fip/u-boot.bin.gxbb bs=512 seek=8 count=1 conv=fsync,notrunc + $ dd if=bl1.bin.hardkernel of=fip/u-boot.bin.gxbb bs=512 seek=2 skip=2 count=1 conv=fsync,notrunc + $ ./aml_chksum fip/u-boot.bin.gxbb + $ dd if=fip/u-boot.gxbb of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1 + $ dd if=fip/u-boot.gxbb of=$DEV conv=fsync,notrunc bs=1 count=440