AMP SDK Structure
AMP SDK structure
The directories directly related to heterogeneous development are shown below:
<SDK>/
├── device/rockchip/ # Unified build scripts, board defconfigs, and FIT ITS files
├── kernel/ or kernel-* # Linux Kernel, AMP management driver, and RPMsg
├── hal/ # RK HAL bare-metal library and examples
├── rtos/ # RT-Thread, board configuration, and RPMsg-Lite
├── u-boot/ # AMP FIT loading and remote-core startup
├── rkbin/ # BL31, Loader, and special boot configurations
├── prebuilts/ # Cross-compilation toolchains
└── tools/ # Packaging and firmware toolsCommon files and their purposes:
| File | Purpose |
|---|---|
device/rockchip/.chip/rockchip_xxx_defconfig | Selects AMP projects, architecture, ITS, U-Boot configuration, and partition table |
device/rockchip/<soc>/amp_linux.its | Packaging description for Linux + AP RTOS/bare metal |
device/rockchip/<soc>/amp.its | Packaging description for RTOS + bare metal |
device/rockchip/<soc>/amp_mcu.its | Packaging description for Linux + MCU RTOS/bare metal |
kernel/arch/arm64/boot/dts/rockchip/*-amp.dts* | Linux-side reserved memory, interrupts, pins, clocks, and peripheral assignment |
kernel/drivers/soc/rockchip/rockchip_amp.c | AMP resources and remote-core lifecycle management |
rtos/bsp/rockchip/<target>/ | RT-Thread board project |
hal/project/<target>/ | Bare-metal board project |
Directory names may differ slightly between SDK releases. Use the following commands to locate the actual files:
find device/rockchip -name 'amp*.its' -o -name '*amp*defconfig'
find kernel* -path '*rockchip*' -name '*amp*.dts*'