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- Introduction
- ============
- RK3399 key features we might use in U-Boot:
- * CPU: ARMv8 64bit Big-Little architecture,
- * Big: dual-core Cortex-A72
- * Little: quad-core Cortex-A53
- * IRAM: 200KB
- * DRAM: 4GB-128MB dual-channel
- * eMMC: support eMMC 5.0/5.1, suport HS400, HS200, DDR50
- * SD/MMC: support SD 3.0, MMC 4.51
- * USB: USB3.0 type-C port *2 with dwc3 controller
- * USB2.0 EHCI host port *2
- * Display: RGB/HDMI/DP/MIPI/EDP
- evb key features:
- * regulator: pwm regulator for CPU B/L
- * PMIC: rk808
- * debug console: UART2
- In order to support Arm Trust Firmware(ATF), we can use either SPL or
- miniloader from rockchip to do:
- * do DRAM init
- * load and verify ATF image
- * load and verify U-Boot image
- Here is the step-by-step to boot to U-Boot on rk3399.
- Get the Source and prebuild binary
- ==================================
- > mkdir ~/evb_rk3399
- > cd ~/evb_rk3399
- > git clone https://github.com/ARM-software/arm-trusted-firmware.git
- > git clone https://github.com/rockchip-linux/rkbin.git
- > git clone https://github.com/rockchip-linux/rkdeveloptool.git
- Compile ATF
- ===========
- > cd arm-trusted-firmware
- > make realclean
- > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
- Get bl31.elf in this step, copy it to U-Boot root dir:
- > cp build/rk3399/release/bl31/bl31.elf ../u-boot/
- Or you can get the bl31.elf directly from Rockchip:
- > cp rkbin/rk33/rk3399_bl31_v1.00.elf ../u-boot/bl31.elf
- Compile U-Boot
- ==============
- > cd ../u-boot
- > export CROSS_COMPILE=aarch64-linux-gnu-
- > make evb-rk3399_defconfig
- for firefly-rk3399, use below instead:
- > make firefly-rk3399_defconfig
- > make
- > make u-boot.itb
- Get spl/u-boot-spl.bin and u-boot.itb in this step.
- Compile rkdeveloptool
- =====================
- Get rkdeveloptool installed on your Host in this step.
- Follow instructions in latest README, example:
- > cd ../rkdeveloptool
- > autoreconf -i
- > ./configure
- > make
- > sudo make install
- Both origin binaries and Tool are ready now, choose either option 1 or
- option 2 to deploy U-Boot.
- Package the image
- =================
- Package the image for U-Boot SPL(option 1)
- --------------------------------
- > cd ..
- > tools/mkimage -n rk3399 -T rksd -d spl/u-boot-spl.bin idbspl.img
- Get idbspl.img in this step.
- Package the image for Rockchip miniloader(option 2)
- ------------------------------------------
- > cd ..
- > cp arm-trusted-firmware/build/rk3399/release/bl31.elf rkbin/rk33
- > ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini
- > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img
- Get trust.img and uboot.img in this step.
- Flash the image to eMMC
- =======================
- Flash the image with U-Boot SPL(option 1)
- -------------------------------
- Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
- > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
- > rkdeveloptool wl 64 u-boot/idbspl.img
- > rkdeveloptool wl 0x4000 u-boot/u-boot.itb
- > rkdeveloptool rd
- Flash the image with Rockchip miniloader(option 2)
- ----------------------------------------
- Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
- > rkdeveloptool db rkbin/rk33/rk3399_loader_v1.08.106.bin
- > rkdeveloptool ul rkbin/rk33/rk3399_loader_v1.08.106.bin
- > rkdeveloptool wl 0x4000 u-boot/uboot.img
- > rkdeveloptool wl 0x6000 u-boot/trust.img
- > rkdeveloptool rd
- You should be able to get U-Boot log in console/UART2(baurdrate 1500000)
- For more detail, please reference to:
- http://opensource.rock-chips.com/wiki_Boot_option
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