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 ---
Changes in v4: None Changes in v3: None Changes in v2: fix a binary path error
board/rockchip/evb_rk3399/README | 73 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 board/rockchip/evb_rk3399/README
diff --git a/board/rockchip/evb_rk3399/README b/board/rockchip/evb_rk3399/README new file mode 100644 index 0000000..af4e45e --- /dev/null +++ b/board/rockchip/evb_rk3399/README @@ -0,0 +1,73 @@ +Introduction +============ + +RK3399 key feature 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 typc-C port *2 with dwc3 controller +* USB2.0 EHCI host port *2 +* Display: RGB/HDMI/DP/MIPI/EDP + +evb feature: +* regulator: pwm regulator for CPU B/L +* PMIC: rk808 +* debug console: UART2 + +In order to support Arm Trust Firmware, we need to use the +miniloader from rockchip which: +* do DRAM init +* load&verify ATF image +* load&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 clone https://github.com/rockchip-linux/rkflashtool + +Compile the ATF +=============== + + > cd arm-trusted-firmware + > make realclean + > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31 + +Compile the u-boot +================== + + > cd ../u-boot + > make CROSS_COMPILE=aarch64-linux-gnu- evb-rk3399_defconfig all + +Compile the rkflashtool +======================= + + > cd ../rkflashtool + > make + +Package the image for miniloader +================================ + > cd .. + > cp arm-trusted-firmware/build/rk3399/release/bl31.bin rkbin/rk33 + > ./rkbin/tools/trust_merger rkbin/tools/RK3399TRUST.ini + > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img + > mkdir image + > mv trust.img ./image/ + > mv uboot.img ./image/rk3399evb-uboot.bin + +Flash the image +=============== +Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then: + + > ./rkflashtool/rkflashloader rk3399evb + +You should be able to get U-boot log message in console/UART2 now.