| Here is the step-by-step to boot to U-Boot on rk3368. |
| |
| Get miniloader and trust.img form rockchip vendor u-boot source code |
| ============================================================================== |
| > git clone https://github.com/rockchip-linux/u-boot.git rockchip-uboot |
| > cd rockchip-uboot |
| > make rk3368_defconfig /*chose px5_defconfig if you run a px5 platform here*/ |
| > ./mkv8.sh |
| |
| Compile the upstream U-Boot |
| =========================== |
| > cd u-boot |
| > make CROSS_COMPILE=aarch64-linux-gnu- sheep-rk3368_defconfig all |
| |
| Package u-boot for miniloader |
| ================================ |
| > ../rockchip-uboot/tools/loaderimage --pack --uboot u-boot.bin u-boot.img |
| |
| Flash the image by rkdeveloptool |
| ================================ |
| rkdeveloptool can get from https://github.com/rockchip-linux/rkdeveloptool.git |
| |
| Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then: |
| > rkdeveloptool db ./rockchip-uboot/rk3368_loader_v2.00.256.bin |
| > rkdeveloptool wl 0x6000 ./rockchip-uboot/trust.img |
| > rkdeveloptool wl 0x4000 ./u-boot/u-boot.img |
| > rkdeveloptool RD |
| |
| You should be able to get U-Boot log message from boot console: |
| |
| U-Boot 2017.05-rc3-01094-g9ddd1e8-dirty (May 15 2017 - 15:57:23 +0800) |
| |
| Model: Rockchip sheep board |
| DRAM: 2 GiB |
| MMC: dwmmc@ff0f0000: 0 |
| Using default environment |
| |
| In: serial@ff690000 |
| Out: serial@ff690000 |
| Err: serial@ff690000 |
| Net: Net Initialization Skipped |
| No ethernet found. |
| Hit any key to stop autoboot: 0 |
| => |
