AM65X_SR2 Ring Accelerator Device Descriptions

Introduction

This chapter provides information on the Ring Accelerator devices in the AM65X_SR2 SoC. Some System Firmware TISCI messages take device specific inputs. This chapter provides information on the valid values for Ring Accelerator TISCI message parameters.

Ring Accelerator Device IDs

Some System Firmware TISCI message APIs require the Ring Accelerator device ID be provided as part of the request. Based on AM65X_SR2 Device IDs these are the valid Ring Accelerator device IDs.

Ring Accelerator Device Name	Ring Accelerator Device ID
AM6_DEV_NAVSS0_RINGACC0	187
AM6_DEV_MCU_NAVSS0_RINGACC0	195

Ring Accelerator Ring Indices

This section describes valid Ring Accelerator ring indices for each ring type. The ring index and type ID are used in some Ring Accelerator based TISCI messages.

Warning

Resources marked as reserved for use by DMSC cannot be assigned to a host within the RM Board Configuration resource assignment array. The RM Board Configuration is rejected if an overlap with a reserved resource is detected.

NAVSS0_RINGACC0

Ring Type	Ring Index Range
UDMAP_TX_H (RESERVED BY SYSTEM FIRMWARE)	0 to 0
UDMAP_TX_H	1 to 7
UDMAP_TX	8 to 119
UDMAP_TX_EXT	120 to 151
UDMAP_RX_H (RESERVED BY SYSTEM FIRMWARE)	152 to 152
UDMAP_RX_H	153 to 159
UDMAP_RX	160 to 301
GP (RESERVED BY SYSTEM FIRMWARE)	302 to 303
GP	304 to 767

	Monitor Index Range
Ring Monitors	0 to 31

MCU_NAVSS0_RINGACC0

Ring Type	Ring Index Range
UDMAP_TX_H	0 to 1
UDMAP_TX	2 to 47
UDMAP_RX_H	48 to 49
UDMAP_RX	50 to 95
GP	96 to 255

	Monitor Index Range
Ring Monitors	0 to 31