ZYNQ SATA 3 AHCI Host Controller with Linux Driver

Overview

The LDS SATA 3 HOST AHCI XZ7 IP incorporates the AHCI registers model, the Transport layer, the Link layer and the PHY layer on a Xilinx Zynq speed grade 2 FPGA. The LDS_SATA 3 HOST AHCI XZ7 IP is compliant with Serial ATA III specification and signaling rate is 6Gbs. The LDS SATA 3 HOST AHCI XZ7 IP is fully synchronous with system frequency (Clock_sys) at 75MHz in case of 3Gbs speed selection and 150MHz in case of 6Gbs speed selection. The source code format is available for ease of customization. The customization can be done by Logic Design Solutions.

Key Features

Linux Driver features

Linux Kernel 3.12 patch
Linux AHCI SATA Driver compatible
Provide standard Linux block device
Easy to adapt to the future version of Linux Kernel
Support any Linux file system

AHCI features

1 port
AHCI Generic Host Registers set
AHCI Port Host Registers set

Physical Layer features

Detect OOB and COMWAKE
Detect the K28.5 comma character and provides a 32 bit parallel output
Power management mode handled by state machine (shared between Phy and Link layer)
Provides error indication to upper layers
8b/10b encoding and decoding in Xilinx Zynq GTX Macro
6Gbs or 3Gbs Speed

Link Layer features

Scrambling of tx data and descrambling of rx data
CRC 32 calculation and check
Report transmission status and error to Transport Layer
Enable BIST loopback and pattern generation modes
Auto inserted hold primitive to avoid FIFO overflow and underflow
Partial and slumber power management modes
CONT primitive management in receive and transmit

Transport Layer features

48-bits sector address
Programmed IO (PIO) and DMA modes
Support BIST FIS transmission and reception
Automatic error FIS retry capability
Implement Shadow Registers and SATA SuperSet registers
Simple synchronous CPU and DMA Interface for data transfers including DMA hold-off capability
DMA interface can be connected easily to memory space or FIFOs (FIFO interface provided)
NCQ Support.

Block Diagram

Deliverables

Source code or Synthesis Netlist :

Data Sheet, EDK project Description,
SATA HOST AHCI AXI Interface Description and Constraint File.

Demo :

Linux bootable SD card compatible with ZC706+XM104 boards

Linux Kernel 3.12 patch
Linux AHCI SATA Driver compatible
Provide standard Linux block device
Easy to adapt to the future version of Linux Kernel
Support any Linux file system

Linux kernel 3.12 – tested and validated with kernel 3.12 from Xilinx
Linux open firmware / device tree
Linux standard device interfaces

Linux package has been done by Armadeus Systems : www.armadeus.com

Technical Specifications

Maturity

Good

Availability

Now

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