AM623: about am623 device tree memory node

Part Number: AM623

Tool/software:

hi

 We only use the linux SDK version 10.01.10.04  and not use mcu+ sdk. 

for the  device tree node in k3-am62x-sk-common.dtsi file ,   whether we can remove the three node  rtos_ipc_memory_region / mcu_m4fss_dma_memory_region /mcu_m4fss_memory_region  ?   what is the purpose of reserving these memory? 

reserved-memory {

rtos_ipc_memory_region: ipc-memories@9c800000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9c800000 0x00 0x00300000>;
no-map;
};

mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9cb00000 0x00 0x100000>;
no-map;
};

mcu_m4fss_memory_region: m4f-memory@9cc00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9cc00000 0x00 0xe00000>;
no-map;
};
};