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 type-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
38
39Compile ATF
40===========
41
42  > cd arm-trusted-firmware
43  > make realclean
44  > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
45
46  Get bl31.elf in this step, copy it to U-Boot root dir:
47  > cp build/rk3399/release/bl31/bl31.elf ../u-boot/
48
49  Or you can get the bl31.elf directly from Rockchip:
50  > cp rkbin/rk33/rk3399_bl31_v1.00.elf ../u-boot/bl31.elf
51
52
53Compile U-Boot
54==============
55
56  > cd ../u-boot
57  > export CROSS_COMPILE=aarch64-linux-gnu-
58  > make evb-rk3399_defconfig
59  for firefly-rk3399, use below instead:
60  > make firefly-rk3399_defconfig
61  > make
62  > make u-boot.itb
63
64  Get spl/u-boot-spl.bin and u-boot.itb in this step.
65
66Compile rkdeveloptool
67=====================
68
69Get rkdeveloptool installed on your Host in this step.
70
71Follow instructions in latest README, example:
72  > cd ../rkdeveloptool
73  > autoreconf -i
74  > ./configure
75  > make
76  > sudo make install
77
78Both origin binaries and Tool are ready now, choose either option 1 or
79option 2 to deploy U-Boot.
80
81Package the image
82=================
83
84Package the image for U-Boot SPL(option 1)
85--------------------------------
86  > cd ..
87  > tools/mkimage -n rk3399 -T rksd -d spl/u-boot-spl.bin idbspl.img
88
89  Get idbspl.img in this step.
90
91Package the image for Rockchip miniloader(option 2)
92------------------------------------------
93  > cd ..
94  > cp arm-trusted-firmware/build/rk3399/release/bl31.elf rkbin/rk33
95  > ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini
96  > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img
97
98  Get trust.img and uboot.img in this step.
99
100Flash the image to eMMC
101=======================
102
103Flash the image with U-Boot SPL(option 1)
104-------------------------------
105Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
106  > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
107  > rkdeveloptool wl 64 u-boot/idbspl.img
108  > rkdeveloptool wl 0x4000 u-boot/u-boot.itb
109  > rkdeveloptool rd
110
111Flash the image with Rockchip miniloader(option 2)
112----------------------------------------
113Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
114  > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
115  > rkdeveloptool ul rkbin/rk33/rk3399_loader_v1.08.106.bin
116  > rkdeveloptool wl 0x4000 u-boot/uboot.img
117  > rkdeveloptool wl 0x6000 u-boot/trust.img
118  > rkdeveloptool rd
119
120You should be able to get U-Boot log in console/UART2(baurdrate 1500000)
121For more detail, please reference to:
122http://opensource.rock-chips.com/wiki_Boot_option
123