1 Introduction 2 ============ 3 4 RK3399 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 16 evb key features: 17 * regulator: pwm regulator for CPU B/L 18 * PMIC: rk808 19 * debug console: UART2 20 21 In order to support Arm Trust Firmware(ATF), we can use either SPL or 22 miniloader from rockchip to do: 23 * do DRAM init 24 * load and verify ATF image 25 * load and verify U-Boot image 26 27 Here is the step-by-step to boot to U-Boot on rk3399. 28 29 Get 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 Compile 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 51 Compile 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 65 Compile 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 76 Both origin binaries and Tool are ready now, choose either option 1 or 77 option 2 to deploy U-Boot. 78 79 Package the image 80 ================= 81 82 Package 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 89 Package 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 98 Flash the image to eMMC 99 ======================= 100 101 Flash the image with U-Boot SPL(option 1) 102 ------------------------------- 103 Power 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 108 109 Flash the image with Rockchip miniloader(option 2) 110 ---------------------------------------- 111 Power 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 117 118 You should be able to get U-Boot log in console/UART2(baurdrate 1500000) 119 For more detail, please reference to: 120 http://opensource.rock-chips.com/wiki_Boot_option 121
