Add a README to guide people flash the ATF and U-Boot with Rockchip tools to bring up to board. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org>master
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Introduction |
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============ |
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RK3399 key features we might use in U-Boot: |
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* CPU: ARMv8 64bit Big-Little architecture, |
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* Big: dual-core Cortex-A72 |
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* Little: quad-core Cortex-A53 |
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* IRAM: 200KB |
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* DRAM: 4GB-128MB dual-channel |
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* eMMC: support eMMC 5.0/5.1, suport HS400, HS200, DDR50 |
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* SD/MMC: support SD 3.0, MMC 4.51 |
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* USB: USB3.0 typc-C port *2 with dwc3 controller |
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* USB2.0 EHCI host port *2 |
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* Display: RGB/HDMI/DP/MIPI/EDP |
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evb key features: |
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* regulator: pwm regulator for CPU B/L |
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* PMIC: rk808 |
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* debug console: UART2 |
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In order to support Arm Trust Firmware(ATF), we need to use the |
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miniloader from rockchip which: |
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* do DRAM init |
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* load and verify ATF image |
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* load and verify U-Boot image |
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Here is the step-by-step to boot to U-Boot on rk3399. |
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Get the Source and prebuild binary |
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================================== |
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> mkdir ~/evb_rk3399 |
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> cd ~/evb_rk3399 |
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> git clone https://github.com/ARM-software/arm-trusted-firmware.git |
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> git clone https://github.com/rockchip-linux/rkbin |
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> git clone https://github.com/rockchip-linux/rkflashtool |
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Compile the ATF |
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=============== |
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> cd arm-trusted-firmware |
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> make realclean |
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> make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31 |
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Compile the U-Boot |
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================== |
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> cd ../u-boot |
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> make CROSS_COMPILE=aarch64-linux-gnu- evb-rk3399_defconfig all |
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Compile the rkflashtool |
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======================= |
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> cd ../rkflashtool |
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> make |
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Package the image for miniloader |
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================================ |
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> cd .. |
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> cp arm-trusted-firmware/build/rk3399/release/bl31.bin rkbin/rk33 |
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> ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini |
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> ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img |
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> mkdir image |
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> mv trust.img ./image/ |
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> mv uboot.img ./image/rk3399evb-uboot.bin |
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Flash the image |
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=============== |
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Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then: |
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> ./rkflashtool/rkflashloader rk3399evb |
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You should be able to get U-Boot log message in console/UART2 now. |
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