您好，在tda4vm的启动介绍中提到mcu R5的spl会加载mcu的RTOS，那么linux sdk中是否已经包含了RTOS的相关内容，mcu R5的spl源码位置找不到能否提供一下？如果linux sdk中未包含RTOS的内容，那开发板是如何启动的；如果包含了这部分内容，希望提供一下代码位置，谢谢！
您好，在tda4vm的启动介绍中提到mcu R5的spl会加载mcu的RTOS，那么linux sdk中是否已经包含了RTOS的相关内容，mcu R5的spl源码位置找不到能否提供一下？如果linux sdk中未包含RTOS的内容，那开发板是如何启动的；如果包含了这部分内容，希望提供一下代码位置，谢谢！
请看下面e2e工程师的回复。
In the TDA4VM bootloader doc, it mentions that the mcu R5 spl will load the mcu rtos, does the linux SDK include the related RTOS code? Where is the mcu R5 SPL? If the linux sdk doesn't include the RTOS, how does the board boot?
The MCU R5F0 core runs the device manager(DM) firmware. The source code for DM part of the RTOS but Linux SDK includes the default DM binary under the board-support/prebuilt-images:
Something like below:
2. How does the mcu R5F core run?
ROM --> MCU R5F SPL --> DM(Device Manager)
/media/$(USER)/BOOT/tispl.bin
This is the A72 SPL binary. This also includes:ATF, OPTEE & DM as well.
/media/$(USER)/BOOT/tiboot3.bin
R5 SPL
/media/$(USER)/BOOT/u-boot.img
A72 U-Boot
/media/$(USER)/BOOT/sysfw.itb
M3 system firmware responsible for foundational security.
/media/$(USER)/rootfs/boot/fitImage
This is the kernel image.
Please follow the below documentation to understand better:
The above link should answer all your questions.
