1Introduction
2============
3
4RK3399 key features we might use in U-Boot:
5* CPU: ARMv8 64bit Big-Little architecture,
6*      Big: dual-core Cortex-A72
7*      Little: quad-core Cortex-A53
8* IRAM: 200KB
9* DRAM: 4GB-128MB dual-channel
10* eMMC: support eMMC 5.0/5.1, suport HS400, HS200, DDR50
11* SD/MMC: support SD 3.0, MMC 4.51
12* USB: USB3.0 typc-C port *2 with dwc3 controller
13*      USB2.0 EHCI host port *2
14* Display: RGB/HDMI/DP/MIPI/EDP
15
16evb key features:
17* regulator: pwm regulator for CPU B/L
18* PMIC: rk808
19* debug console: UART2
20
21In order to support Arm Trust Firmware(ATF), we can use either SPL or
22miniloader from rockchip to do:
23* do DRAM init
24* load and verify ATF image
25* load and verify U-Boot image
26
27Here is the step-by-step to boot to U-Boot on rk3399.
28
29Get the Source and prebuild binary
30==================================
31
32  > mkdir ~/evb_rk3399
33  > cd ~/evb_rk3399
34  > git clone https://github.com/ARM-software/arm-trusted-firmware.git
35  > git clone https://github.com/rockchip-linux/rkbin.git
36  > git clone https://github.com/rockchip-linux/rkdeveloptool.git
37
38Get some prerequisites
39======================
40
41You need the Python elftools.elf.elffile library for make_fit_atf.py to work:
42
43  > sudo apt-get install python-pyelftools
44
45Compile ATF
46===========
47
48  > cd arm-trusted-firmware
49  > make realclean
50  > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
51
52  Get bl31.elf in this step, copy it to U-Boot root dir:
53  > cp build/rk3399/release/bl31/bl31.elf ../u-boot/
54
55  Or you can get the bl31.elf directly from Rockchip:
56  > cp rkbin/rk33/rk3399_bl31_v1.00.elf ../u-boot/bl31.elf
57
58
59Compile U-Boot
60==============
61
62  > cd ../u-boot
63  > export ARCH=arm64
64  > export CROSS_COMPILE=aarch64-linux-gnu-
65  > make evb-rk3399_defconfig
66  for firefly-rk3399, use below instead:
67  > make firefly-rk3399_defconfig
68  > make
69  > make u-boot.itb
70
71  Get spl/u-boot-spl.bin and u-boot.itb in this step.
72
73Compile rkdeveloptool
74=====================
75
76Get rkdeveloptool installed on your Host in this step.
77
78Follow instructions in latest README, example:
79  > cd ../rkdeveloptool
80  > autoreconf -i
81  > ./configure
82  > make
83  > sudo make install
84
85Both origin binaries and Tool are ready now, choose either option 1 or
86option 2 to deploy U-Boot.
87
88Package the image
89=================
90
91Package the image for U-Boot SPL(option 1)
92--------------------------------
93  > cd ..
94  > tools/mkimage -n rk3399 -T rksd -d spl/u-boot-spl.bin idbspl.img
95
96  Get idbspl.img in this step.
97
98Package the image for Rockchip miniloader(option 2)
99------------------------------------------
100  > cd ..
101  > cp arm-trusted-firmware/build/rk3399/release/bl31.elf rkbin/rk33
102  > ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini
103  > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img
104
105  Get trust.img and uboot.img in this step.
106
107Flash the image to eMMC
108=======================
109
110Flash the image with U-Boot SPL(option 1)
111-------------------------------
112Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
113  > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
114  > rkdeveloptool wl 64 u-boot/idbspl.img
115  > rkdeveloptool wl 0x4000 u-boot/u-boot.itb
116  > rkdeveloptool rd
117
118Flash the image with Rockchip miniloader(option 2)
119----------------------------------------
120Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
121  > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
122  > rkdeveloptool ul rkbin/rk33/rk3399_loader_v1.08.106.bin
123  > rkdeveloptool wl 0x4000 u-boot/uboot.img
124  > rkdeveloptool wl 0x6000 u-boot/trust.img
125  > rkdeveloptool rd
126
127You should be able to get U-Boot log in console/UART2(baurdrate 1500000)
128For more detail, please reference to:
129http://opensource.rock-chips.com/wiki_Boot_option
130