1.. SPDX-License-Identifier: GPL-2.0+
2
3U-Boot for Amlogic P201
4=======================
5
6P201 is a reference board manufactured by Amlogic with the following
7specifications:
8
9 - Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz
10 - ARM Mali 450 GPU
11 - 2GB DDR3 SDRAM
12 - 10/100 Ethernet
13 - HDMI 2.0 4K/60Hz display
14 - 2 x USB 2.0 Host
15 - eMMC, microSD
16 - Infrared receiver
17 - SDIO WiFi Module
18 - CVBS+Stereo Audio Jack
19
20Schematics are available from Amlogic on demand.
21
22U-Boot compilation
23------------------
24
25.. code-block:: bash
26
27    $ export CROSS_COMPILE=aarch64-none-elf-
28    $ make p201_defconfig
29    $ make
30
31Image creation
32--------------
33
34Amlogic doesn't provide sources for the firmware and for tools needed
35to create the bootloader image, so it is necessary to obtain them from
36the git tree published by the board vendor:
37
38.. code-block:: bash
39
40    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
41    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
42    $ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
43    $ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
44    $ export PATH=$PWD/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin:$PWD/gcc-linaro-arm-none-eabi-4.8-2013.11_linux/bin:$PATH
45    $ git clone https://github.com/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot
46    $ cd amlogic-u-boot
47    $ make gxb_p201_v1_defconfig
48    $ make
49    $ export FIPDIR=$PWD/fip
50
51Go back to mainline U-boot source tree then :
52
53.. code-block:: bash
54
55    $ mkdir fip
56
57    $ cp $FIPDIR/gxl/bl2.bin fip/
58    $ cp $FIPDIR/gxl/acs.bin fip/
59    $ cp $FIPDIR/gxl/bl21.bin fip/
60    $ cp $FIPDIR/gxl/bl30.bin fip/
61    $ cp $FIPDIR/gxl/bl301.bin fip/
62    $ cp $FIPDIR/gxl/bl31.img fip/
63    $ cp u-boot.bin fip/bl33.bin
64
65    $ $FIPDIR/blx_fix.sh \
66    	fip/bl30.bin \
67    	fip/zero_tmp \
68    	fip/bl30_zero.bin \
69    	fip/bl301.bin \
70    	fip/bl301_zero.bin \
71    	fip/bl30_new.bin \
72    	bl30
73
74    $ $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
75
76    $ $FIPDIR/blx_fix.sh \
77    	fip/bl2_acs.bin \
78    	fip/zero_tmp \
79    	fip/bl2_zero.bin \
80    	fip/bl21.bin \
81    	fip/bl21_zero.bin \
82    	fip/bl2_new.bin \
83    	bl2
84
85    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
86    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
87    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
88    $ $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
89    $ $FIPDIR/gxl/aml_encrypt_gxl --bootmk \
90    		--output fip/u-boot.bin \
91    		--bl2 fip/bl2.n.bin.sig \
92    		--bl30 fip/bl30_new.bin.enc \
93    		--bl31 fip/bl31.img.enc \
94    		--bl33 fip/bl33.bin.enc
95
96and then write the image to SD with:
97
98.. code-block:: bash
99
100    $ DEV=/dev/your_sd_device
101    $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
102    $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444
103