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https://github.com/AsahiLinux/u-boot
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The bank0 ram size should be the DRAM size minus reserved size, the DRAM size may be 1GB, 2GB, 4GB, we can not hard code it. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Added DECLARE_GLOBAL_DATA_PTR for RK3328, RK3368 and RK3399: Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> |
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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 typc-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 need to use the miniloader from rockchip which: * 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 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.