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
38Compile the ATF
39===============
40
41  > cd arm-trusted-firmware
42  > make realclean
43  > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
44
45  Or you can get the bl31.elf directly from Rockchip:
46  cp rkbin/rk33/rk3399_bl31_v1.00.elf ../u-boot/bl31.elf
47
48  Get bl31.elf in this step, copy it to U-Boot root dir:
49  > cp bl31.elf ../u-boot/
50
51Compile the U-Boot
52==================
53
54  > cd ../u-boot
55  > export ARCH=arm64
56  > export CROSS_COMPILE=aarch64-linux-gnu-
57  > make evb-rk3399_defconfig
58  for firefly-rk3399, use below instead:
59  > make firefly-rk3399_defconfig
60  > make
61  > make u-boot.itb
62
63  Get spl/u-boot-spl.bin and u-boot.itb in this step.
64
65Compile the rkdeveloptool
66=======================
67  Follow instructions in latest README
68  > cd ../rkflashtool
69  > autoreconf -i
70  > ./configure
71  > make
72  > sudo make install
73
74  Get rkdeveloptool in you Host in this step.
75
76Both origin binaries and Tool are ready now, choose either option 1 or
77option 2 to deploy U-Boot.
78
79Package the image
80=================
81
82Package the image for U-Boot SPL(option 1)
83--------------------------------
84  > cd ..
85  > tools/mkimage -n rk3399 -T rksd -d spl/u-boot-spl.bin idbspl.img
86
87  Get idbspl.img in this step.
88
89Package the image for Rockchip miniloader(option 2)
90------------------------------------------
91  > cd ..
92  > cp arm-trusted-firmware/build/rk3399/release/bl31.elf rkbin/rk33
93  > ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini
94  > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img
95
96  Get trust.img and uboot.img in this step.
97
98Flash the image to eMMC
99=======================
100
101Flash the image with U-Boot SPL(option 1)
102-------------------------------
103Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
104  > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
105  > rkdeveloptool wl 64 u-boot/idbspl.img
106  > rkdeveloptool wl 0x4000 u-boot/u-boot.itb
107  > rkdeveloptool rd
108
109Flash the image with Rockchip miniloader(option 2)
110----------------------------------------
111Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
112  > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
113  > rkdeveloptool ul rkbin/rk33/rk3399_loader_v1.08.106.bin
114  > rkdeveloptool wl 0x4000 u-boot/uboot.img
115  > rkdeveloptool wl 0x6000 u-boot/trust.img
116  > rkdeveloptool rd
117
118You should be able to get U-Boot log in console/UART2(baurdrate 1500000)
119For more detail, please reference to:
120http://opensource.rock-chips.com/wiki_Boot_option
121