Programming the CSU DMA

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

During execution of the CSU ROM code, the CSU uses the CSU DMA for boot-image transfer. The FSBL also uses the CSU DMA for PL programming (through PCAP) and also for image transfers. The CSU DMA can be used after bringing it out of reset, followed by programing the appropriate transfer channel. To bring the CSU DMA out of reset, clear the csu.csu_dma_reset[reset] bit, as described in the following steps.