1.. SPDX-License-Identifier: GPL-2.0+
2
3U-Boot for Amlogic W400
4=======================
5
6U200 is a reference board manufactured by Amlogic with the following
7specifications:
8
9 - Amlogic S922X ARM Cortex-A53 dual-core + Cortex-A73 quad-core SoC
10 - 2GB DDR4 SDRAM
11 - 10/100 Ethernet (Internal PHY)
12 - 1 x USB 3.0 Host
13 - eMMC
14 - SDcard
15 - Infrared receiver
16 - SDIO WiFi Module
17 - MIPI DSI Connector
18 - Audio HAT Connector
19 - PCI-E M.2 Connector
20
21Schematics are available from Amlogic on demand.
22
23U-Boot compilation
24------------------
25
26.. code-block:: bash
27
28    $ export CROSS_COMPILE=aarch64-none-elf-
29    $ make w400_defconfig
30    $ make
31
32Image creation
33--------------
34
35Amlogic doesn't provide sources for the firmware and for tools needed
36to create the bootloader image, so it is necessary to obtain them from
37the git tree published by the board vendor:
38
39.. code-block:: bash
40
41    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
42    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
43    $ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
44    $ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
45    $ 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
46    $ git clone https://github.com/BayLibre/u-boot.git -b buildroot-openlinux-20180418 amlogic-u-boot
47    $ cd amlogic-u-boot
48    $ make g12b_w400_v1_defconfig
49    $ make
50    $ export UBOOTDIR=$PWD
51
52Download the latest Amlogic Buildroot package, and extract it :
53
54.. code-block:: bash
55
56    $ wget http://openlinux2.amlogic.com:8000/ARM/filesystem/Linux_BSP/buildroot_openlinux_kernel_4.9_fbdev_20180706.tar.gz
57    $ tar xfz buildroot_openlinux_kernel_4.9_fbdev_20180706.tar.gz buildroot_openlinux_kernel_4.9_fbdev_20180706/bootloader
58    $ export BRDIR=$PWD/buildroot_openlinux_kernel_4.9_fbdev_20180706
59    $ export FIPDIR=$BRDIR/bootloader/uboot-repo/fip
60
61Go back to mainline U-Boot source tree then :
62
63.. code-block:: bash
64
65    $ mkdir fip
66
67    $ wget https://github.com/BayLibre/u-boot/releases/download/v2017.11-libretech-cc/blx_fix_g12a.sh -O fip/blx_fix.sh
68    $ cp $UBOOTDIR/build/scp_task/bl301.bin fip/
69    $ cp $UBOOTDIR/build/board/amlogic/g12b_w400_v1/firmware/acs.bin fip/
70    $ cp $BRDIR/bootloader/uboot-repo/bl2/bin/g12b/bl2.bin fip/
71    $ cp $BRDIR/bootloader/uboot-repo/bl30/bin/g12b/bl30.bin fip/
72    $ cp $BRDIR/bootloader/uboot-repo/bl31_1.3/bin/g12b/bl31.img fip/
73    $ cp $FIPDIR/g12b/ddr3_1d.fw fip/
74    $ cp $FIPDIR/g12b/ddr4_1d.fw fip/
75    $ cp $FIPDIR/g12b/ddr4_2d.fw fip/
76    $ cp $FIPDIR/g12b/diag_lpddr4.fw fip/
77    $ cp $FIPDIR/g12b/lpddr4_1d.fw fip/
78    $ cp $FIPDIR/g12b/lpddr4_2d.fw fip/
79    $ cp $FIPDIR/g12b/piei.fw fip/
80    $ cp $FIPDIR/g12b/aml_ddr.fw fip/
81    $ cp u-boot.bin fip/bl33.bin
82
83    $ sh fip/blx_fix.sh \
84    	fip/bl30.bin \
85    	fip/zero_tmp \
86    	fip/bl30_zero.bin \
87    	fip/bl301.bin \
88    	fip/bl301_zero.bin \
89    	fip/bl30_new.bin \
90    	bl30
91
92    $ sh fip/blx_fix.sh \
93    	fip/bl2.bin \
94    	fip/zero_tmp \
95    	fip/bl2_zero.bin \
96    	fip/acs.bin \
97    	fip/bl21_zero.bin \
98    	fip/bl2_new.bin \
99    	bl2
100
101    $ $FIPDIR/g12b/aml_encrypt_g12b --bl30sig --input fip/bl30_new.bin \
102    					--output fip/bl30_new.bin.g12a.enc \
103    					--level v3
104    $ $FIPDIR/g12b/aml_encrypt_g12b --bl3sig --input fip/bl30_new.bin.g12a.enc \
105    					--output fip/bl30_new.bin.enc \
106    					--level v3 --type bl30
107    $ $FIPDIR/g12b/aml_encrypt_g12b --bl3sig --input fip/bl31.img \
108    					--output fip/bl31.img.enc \
109    					--level v3 --type bl31
110    $ $FIPDIR/g12b/aml_encrypt_g12b --bl3sig --input fip/bl33.bin --compress lz4 \
111    					--output fip/bl33.bin.enc \
112    					--level v3 --type bl33
113    $ $FIPDIR/g12b/aml_encrypt_g12b --bl2sig --input fip/bl2_new.bin \
114    					--output fip/bl2.n.bin.sig
115    $ $FIPDIR/g12b/aml_encrypt_g12b --bootmk \
116    		--output fip/u-boot.bin \
117    		--bl2 fip/bl2.n.bin.sig \
118    		--bl30 fip/bl30_new.bin.enc \
119    		--bl31 fip/bl31.img.enc \
120    		--bl33 fip/bl33.bin.enc \
121    		--ddrfw1 fip/ddr4_1d.fw \
122    		--ddrfw2 fip/ddr4_2d.fw \
123    		--ddrfw3 fip/ddr3_1d.fw \
124    		--ddrfw4 fip/piei.fw \
125    		--ddrfw5 fip/lpddr4_1d.fw \
126    		--ddrfw6 fip/lpddr4_2d.fw \
127    		--ddrfw7 fip/diag_lpddr4.fw \
128    		--ddrfw8 fip/aml_ddr.fw \
129    		--level v3
130
131and then write the image to SD with:
132
133.. code-block:: bash
134
135    $ DEV=/dev/your_sd_device
136    $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
137    $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444
138