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Christian Hewittf48e9902023-03-20 11:46:08 +00001.. SPDX-License-Identifier: GPL-2.0+
2
3U-Boot for Beelink GS-King-X (S922X)
4====================================
5
6The Shenzen AZW (Beelink) GS-King-X is based on the Amlogic W400 reference board with an
7S922X-H chip and the following specifications:
8
9- 4GB LPDDR4 RAM
10- 64GB eMMC storage
11- 10/100/1000 Base-T Ethernet
12- AP6356S Wireless (802.11 a/b/g/n/ac, BT 4.1)
13- HDMI 2.1 video
14- S/PDIF optical output
15- 2x ESS9018 audio DACs
16- 4x Ricor RT6862 audio amps
17- Analogue headphone output
18- 1x USB 2.0 OTG port
19- 3x USB 3.0 ports
20- IR receiver
21- 1x micro SD card slot (internal)
22- USB SATA controller with 2x 3.5" drive bays
23- 1x Power on/off button
24
25Beelink do not provide public schematics, but have been willing to share them with known
26distro developers to assist with development.
27
28U-Boot Compilation
29------------------
30
31.. code-block:: bash
32
33 $ export CROSS_COMPILE=aarch64-none-elf-
34 $ make beelink-gsking-x_defconfig
35 $ make
36
37U-Boot Signing with Pre-Built FIP repo
38--------------------------------------
39
40.. code-block:: bash
41
42 $ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
43 $ cd amlogic-boot-fip
44 $ mkdir my-output-dir
45 $ ./build-fip.sh beelink-s922x /path/to/u-boot/u-boot.bin my-output-dir
46
47U-Boot Manual Signing
48---------------------
49
50Beelink released an Amlogic "SDK" dump in their forums but the U-Boot sources included
51result in 2GB RAM detected. The following FIPs were generated with newer sources and
52detect 4GB RAM: https://github.com/LibreELEC/amlogic-boot-fip/tree/master/beelink-s922x
53
54.. code-block:: bash
55
56 $ wget https://github.com/LibreELEC/amlogic-boot-fip/archive/master.zip
57 $ unzip master.zip
58 $ export FIPDIR=$PWD/amlogic-boot-fip/beelink-s922x
59
60Go back to the mainline U-Boot source tree then:
61
62.. code-block:: bash
63
64 $ mkdir fip
65 $ cp $FIPDIR/* fip/
66 $ cp u-boot.bin fip/bl33.bin
67
68 $ sh fip/blx_fix.sh \
69 fip/bl30.bin \
70 fip/zero_tmp \
71 fip/bl30_zero.bin \
72 fip/bl301.bin \
73 fip/bl301_zero.bin \
74 fip/bl30_new.bin \
75 bl30
76
77 $ sh fip/blx_fix.sh \
78 fip/bl2.bin \
79 fip/zero_tmp \
80 fip/bl2_zero.bin \
81 fip/acs.bin \
82 fip/bl21_zero.bin \
83 fip/bl2_new.bin \
84 bl2
85
86 $ fip/aml_encrypt_g12b --bl30sig --input fip/bl30_new.bin \
87 --output fip/bl30_new.bin.g12a.enc \
88 --level v3
89 $ fip/aml_encrypt_g12b --bl3sig --input fip/bl30_new.bin.g12a.enc \
90 --output fip/bl30_new.bin.enc \
91 --level v3 --type bl30
92 $ fip/aml_encrypt_g12b --bl3sig --input fip/bl31.img \
93 --output fip/bl31.img.enc \
94 --level v3 --type bl31
95 $ fip/aml_encrypt_g12b --bl3sig --input fip/bl33.bin --compress lz4 \
96 --output fip/bl33.bin.enc \
97 --level v3 --type bl33
98 $ fip/aml_encrypt_g12b --bl2sig --input fip/bl2_new.bin \
99 --output fip/bl2.n.bin.sig
100 $ fip/aml_encrypt_g12b --bootmk \
101 --output fip/u-boot.bin \
102 --bl2 fip/bl2.n.bin.sig \
103 --bl30 fip/bl30_new.bin.enc \
104 --bl31 fip/bl31.img.enc \
105 --bl33 fip/bl33.bin.enc \
106 --ddrfw1 fip/ddr4_1d.fw \
107 --ddrfw2 fip/ddr4_2d.fw \
108 --ddrfw3 fip/ddr3_1d.fw \
109 --ddrfw4 fip/piei.fw \
110 --ddrfw5 fip/lpddr4_1d.fw \
111 --ddrfw6 fip/lpddr4_2d.fw \
112 --ddrfw7 fip/diag_lpddr4.fw \
113 --ddrfw8 fip/aml_ddr.fw \
114 --level v3
115
116Then write U-Boot to SD or eMMC with:
117
118.. code-block:: bash
119
120 $ DEV=/dev/boot_device
121 $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
122 $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440