AMP Quick Start: Configuration

Quick start

The following procedure uses the unified SDK build script. Menu entries and target names can differ between releases; use ./build.sh help as the authoritative reference for the current SDK.

5.1 Select the chip and board configuration

Run the following commands from the SDK root directory:

./build.sh chip
./build.sh lunch

Select an AMP-enabled defconfig that exactly matches the Firefly board. Then inspect the selected configuration:

grep -E '^RK_AMP|^RK_UBOOT_CFG_FRAGMENTS|^RK_PARAMETER' \
  device/rockchip/.chip/rockchip_*_defconfig

The important options are:

RK_AMP=y                         # Enable AMP builds
RK_AMP_ARCH="arm"               # Use AArch32 for AP RTOS/HAL; use arm64 for 64-bit
RK_AMP_HAL_TARGET="<target>"     # AP bare-metal project
RK_AMP_RTT_TARGET="<target>"     # AP RT-Thread project
RK_AMP_MCU_HAL_TARGET="<target>" # MCU bare-metal project
RK_AMP_MCU_RTT_TARGET="<target>" # MCU RT-Thread project
RK_AMP_FIT_ITS="amp_linux.its"   # AMP FIT packaging configuration
RK_UBOOT_CFG_FRAGMENTS="rk-amp"  # Enable AMP in U-Boot
RK_PARAMETER="parameter.txt"     # Partition table

If the SDK provides a menuconfig interface, prefer it over manually editing configuration files so that dependencies are preserved.

5.2 Select an AMP combination

Verify the cpu, load, size, sys, and loadables properties for every remote-core image in the ITS file. Never change only load without updating the Linux DTS and RTOS/HAL linker configuration.