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- Contents
- ========
- 1. Introduction
- 2. Get the Source and prebuild binary
- 3. Compile the U-Boot
- 4. Compile the rkdeveloptool
- 5. Package the image
- 5.1. Package the image for U-Boot SPL(option 1)
- 5.2. Package the image for Rockchip miniloader(option 2)
- 6. Bootloader storage options
- 7. Flash the image to eMMC
- 7.1. Flash the image with U-Boot SPL(option 1)
- 7.2. Flash the image with Rockchip miniloader(option 2)
- 8. Create a bootable SD/MMC
- 9. And that is it
- Introduction
- ============
- Rock960 board family consists of Rock960 (Consumer Edition) and
- Ficus (Enterprise Edition) 96Boards featuring Rockchip RK3399 SoC.
- Common features implemented on both boards:
- * CPU: ARMv8 64bit Big-Little architecture,
- * Big: dual-core Cortex-A72
- * Little: quad-core Cortex-A53
- * IRAM: 200KB
- * eMMC: 16/32GB eMMC 5.1
- * PMU: RK808
- * SD/MMC
- * Display: HDMI/DP/MIPI
- * Low Speed Expansion Connector
- * High Speed Expansion Connector
- Additional features of Rock960:
- * DRAM: 2GB/4GB LPDDR3 @ 1866MHz
- * 1x USB 3.0 type A, 1x USB 2.0 type A (host mode only),
- 1x USB 3.0 type C OTG
- Additional features of Ficus:
- * DRAM: 2GB/4GB DDR3 @ 1600MHz
- * Ethernet
- * 2x USB 3.0 type A, 2x USB 2.0 type A (host mode only),
- 1x USB 3.0 type C OTG
- Here is the step-by-step to boot to U-Boot on Rock960 boards.
- Get the Source and prebuild binary
- ==================================
- > git clone https://github.com/96rocks/rkbin.git
- > git clone https://github.com/rockchip-linux/rkdeveloptool.git
- Compile the U-Boot
- ==================
- > cd ../u-boot
- > cp ../rkbin/rk33/rk3399_bl31_v1.00.elf ./bl31.elf
- > export CROSS_COMPILE=aarch64-linux-gnu-
- > make rock960-rk3399_defconfig
- > make
- Compile the rkdeveloptool
- =========================
- Follow instructions in latest README
- > cd ../rkdeveloptool
- > autoreconf -i
- > ./configure
- > make
- > sudo make install
- 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 ../rkbin
- > ./tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img 0x200000
- > ../u-boot/tools/mkimage -n rk3399 -T rksd -d rk3399_ddr_933MHz_v1.08.bin idbloader.img
- > cat ./rk33/rk3399_miniloader_v1.06.bin >> idbloader.img
- Get uboot.img and idbloader.img in this step.
- Bootloader storage options
- ==========================
- There are a few different storage options for the bootloader.
- This document explores two of these: eMMC and removable SD/MMC.
- 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 wl 0x40 idbloader.img
- > rkdeveloptool wl 0x4000 uboot.img
- > rkdeveloptool wl 0x6000 ./img/rk3399/trust.img
- > rkdeveloptool rd
- Create a bootable SD/MMC
- ========================
- The idbspl.img contains the first stage, and the u-boot.img the second stage.
- As explained in the Rockchip partition table reference [1], the first stage
- (aka loader1) start sector is 64, and the second stage start sector is 16384.
- Each sector is 512 bytes, which means the first stage offset is 32 KiB,
- and the second stage offset is 8 MiB.
- Note: the second stage location is actually not as per the spec,
- but defined by the SPL. Mainline SPL defines an 8 MiB offset for the second
- stage.
- Assuming the SD card is exposed by device /dev/mmcblk0, the commands
- to write the two stages are:
- > dd if=idbspl.img of=/dev/mmcblk0 bs=1k seek=32
- > dd if=u-boot.itb of=/dev/mmcblk0 bs=1k seek=8192
- Setting up the kernel and rootfs is beyond the scope of this document.
- And that is it
- ==============
- You should be able to get U-Boot log in console/UART2(baurdrate 1500000)
- For more detail, please reference [2].
- [1] http://opensource.rock-chips.com/wiki_Partitions
- [2] http://opensource.rock-chips.com/wiki_Boot_option
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