T2081 ARCHITECTURE
OVERVIEW
- Differences between T2080 and T2081
- CoreNet coherency fabric
- Coherency subdomains
- Memory map, local access windows
- Highlighting data paths inside the T2081
- e6500 core integration
SOC PLATFORM
POWER, RESET AND CLOCKING
- • Configuration signals sampled at reset
- Pre-boot loader, initializing the platform prior to starting the processor core
- PCIe configuration
- Boot memory space, boot space translation
- Clocking, system clock domains
- SerDes high speed lanes configuration
- Advanced power management
SECURE BOOT
- Objectives of trust architecture
- Internal boot ROM, secure boot sequence
- Code signing
- External tamper detection
- Run time integrity checker
CORENET PLATFORM CACHE
- Entry locking
- Operation as memory-mapped SRAM
- Partitioning between coherency domains
- Stashing
PERIPHERAL ACCESS MANAGEMENT UNIT (PAMU)
- Controlling master access permissions through Logical I/O Device Number
- Operation mode translation
- Steps in processing of DSA operations by PAMU
- PAMU gate closed state
MULTIPROCESSOR PERIPHERAL INTERRUPT CONTROLLER
- Interrupt nesting
- Description of the 4 timers / counters
- e6500-to-e6500 interrupt capability
LOW SPEED PERIPHERALS
- Description of the NS16452/16552 compliant Uarts
- I2C controller
- eSPI controller
ENHANCED SDHC
- Transfer protocol, single block, multiple block read and write
- Internal and external DMA capabilities
- SD protocol unit
- Card insertion and removal detection
USB CONTROLLERS
- Host or device support
- EHCI support, scheduling the various transactions into frames
- Integrated PHY
- Endpoint configuration
- Device operation
HARDWARE IMPLEMENTATION
THE DDR3 / 3L MEMORY CONTROLLER
- Jedec specification basics
- DDR3 fly-by architecture, write leveling
- Reset sequence, dynamic ODT, ZQ calibration
- Bank activation, read, write and precharge timing diagrams, page mode
- Initial configuration following Power-on-Reset
- Timing parameters programming
- Initialization routine
- Tuning the performance of the DDR3 controller
- Testing the memory using patterns
INTEGRATED FLASH CONTROLLER
- Functional muxing of pins between NAND, NOR, and GPCM
- Data Buffer Control
- Normal GPCM FSM
- NOR flash FSM
- NAND flash FSM
- Boot from NAND
INTEGRATED DMA CONTROLLERS
- Priority between the 4 channels
- Support for cascading descriptor chains
- Scatter / gathering
PCI EXPRESS INTERFACE
- Acting as a bridge when Root Complex
- Transaction ordering rules
- Programming inbound and outbound ATMUs
- Benefits of MSIs
- Configuration, initialization
- SR-IOV implementation, Alternative Routing ID
SERIAL RAPIDIO INTERFACE
- RapidIO port
- Accept-all mode of operation
- RapidIO doorbell and port-write unit
- Accessing configuration registers via RapidIO packets
- Programming inbound and outbound ATMUs
SATA CONTROLLERS
- SATA basics
- Support for SATA II extensions
- Electrical specification
- Bringing the SATA controller online/offline
- Native command queuing, command descriptor
DATAPATH PROCESSING SUBSYSTEM
DPAA OVERVIEW
- Definitions: buffer, buffer pool, frame, frame queue, work queue, channel
- Frame formats
- DPAA Configuration and Initialization
QUEUE MANAGER
- Objectives if this accelerator
- Frame description
- Frame queue descriptor, frame queue descriptor cache
- Frame queue state machine
- Work queues and channels
- Enqueue and dequeue portals
- Sequences to understand how frames a enqueued / dequeued
- Class and intra-class scheduling rules
- Stash transaction flow control and scheduling
- Congestion avoidance
- Order definition point implementation
- Traffic shaping through CEETM
BUFFER MANAGER
- Objectives if this accelerator
- Central resource pool management function
- External linked list LIFO
- Direct connect portals
- Buffer Pool State Change Notifications
FRAME MANAGER
- Objectives if this accelerator, parsing, classifying and distributing in-line/off-line packet
- Rx BMI features
- Tx BMI features
- Offline parsing, host command features
- Frame processing manager
- FMan controller
- Host commands
- Parser
- Key generator
- Policer
- New features:
- IP fragmentation / re-assembly
- Header manipulation
- Autonomous 802.1qaz
- Data center bridging
- Ingress multicast
MULTI-RATE ETHERNET MAC (mEMAC)
- Physical interfaces
- MAC address recognition
- Accessing PHY registers, clause 45
- Priority Flow Control
- RMON statistic counters, carry registers
RAPIDIO MESSAGE MANAGER
- 2 inbox/outbox mailboxes (queues) for data and one doorbell message structure
- Multicasting
- Outbound segmentation units
SECURITY ENGINE
- Introduction to DES, 3DES and AES algorithms
- Job management using QMan interface
- Job descriptor parsing
- Sharing descriptors
- Selecting the authentication / cryptographic algorithm
- Run Time Integrity Checking
- Public Key Hardware Accelerator (PKHA)
- SNOW 3G Accelerator
- Data Encryption Standard Accelerator (DES)
- Cyclic Redundancy Check Accelerator (CRCA)
- Message Digest Hardware Accelerator (MDHA)
- Elliptic Curve Cryptographic Functions
PATTERN MATCHER
- Objective of this unit, identifying signatures in incoming gigabit streams
- Connection to QMan and BMan
- Support for wildcarding with no pattern explosion
- Updating the pattern database
- Definition of a regular expression
- Pattern Matcher Frame Agent
- Pattern description block caching
- Key Element Scanner, trigger stage, confidence stage
- Data Examination Engine
- Stateful Rule Engine, Stateful Rule Physical Structure, SRE instruction set
GLOBAL FUNCTIONS, DEVELOPMENT AND DEBUG
PERFORMANCE MONITOR AND DEBUG FEATURES
- NEXUS Aurora link
- Event processing unit
- Chaining, triggering
- Watchpoint facility
- Trace buffer
- Cross-Functional Debug Components
- CoreNet debug
- OCeaN debug
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