View source for AR7

== AR5 ==

The early '''AR5''' was a multi-chip ADSL solution.

* TNET4310 MIPS32 [[4K|4Kc]]
* TNET4320 MIPS32 [[4K|4Kc]]
* TNET4400 MIPS32 [[4K|4Kc]]
* TNETD5301 MIPS32 [[4K|4Kc]]
* TNETD5310 MIPS32 [[4K|4Kc]]
* TNETD5320 MIPS32 [[4K|4Kc]]

Devices:

* SpeedStream 5200 modem/router

[http://www.ti.com/sc/dslgateway AR5 ADSL Router, Integrated Access Device And Residential Gateway Chipsets]

== AR7 ==

The Texas Instrument '''AR7''' is the fully integrated single-chip ADSL CPE access router solution. The AR7 combines a [[Instruction_Set_Architecture#MIPS32|MIPS32]] processor, a DSP-based digital transceiver, and an ADSL analog front end.

Features:

* Integrated high performance MIPS [[4K|4KEc]] 32-Bit RISC processor 
* ADSL PHY subsystem based on TI C62x DSP, with integrated transceiver, codec, line driver, and line receiver 
* Hardware accelerated ATM [[wikipedia:Segmentation and Reassembly|SAR]]
* Integrated IEEE 802.3 PHY 
* Two IEEE 802.3 MACs with integrated Media Independent Interface (MII) and Quality of Service (QoS) 
* Integrated USB 1.1 compliant transceiver (slave only?)
* Two VLYNQ interfaces for compatible high-speed expansion devices
* Two 16c550 compatible UARTs
* EJTAG, GPIO and FSER interfaces
* 4Kb PROM (0xBFC00000) and 4Kb RAM (0x80000000) on the chip for boot purposes
* 324 BGA with 1.0-mm ball pitch

Options:

*AR7DB
*AR7RD
*AR7WRD (TNETD7300GDU) is an AR7 option with a interface for WiFi card.
*AR7VWI : DSL + VoIP + Wireless
*AR7VW
*AR7WI
*AR7V : DSL + VoIP

TI does not provide detailed technical documentation for this SoC. Some details are known from the GPL-ed Linux sources.

Another source is a [[Wikipedia:Texas Instruments OMAP|TI OMAP]] and [[Wikipedia:Texas Instruments DaVinci|DaVinci]] documentation. It seems, AR7 SoC peripherials is very close to the OMAP16xx and OMAP730 application processors , but MIPS instead ARM9-based.

== Ownership ==
=== History ===
In 2007, TI sold its DSL business to Infineon.<ref>{{cite web|title=Infineon Technologies#Acquisitions and divestitures|url=http://en.wikipedia.org/wiki/Infineon_Technologies#Acquisitions_and_divestitures}}</ref><ref>{{cite web|title=Infineon buys TI's DSL business|url=http://www.eetimes.com/electronics-news/4072908/Infineon-buys-TI-s-DSL-business}}</ref>

In 2009, Infineon spins off its wireline division to Lantiq.<ref>{{cite web|title=Infineonï¿½s Wireline Division Will Become LANTIQ|url=http://www.infineon.com/cms/en/corporate/press/news/releases/2009/INFWLC200908-077.html}}</ref>

On November 6, 2009, Lantiq annouced that it became a standalone company.<ref>{{cite web|title=Infineon completes the sale of Wireline business; Lantiq becomes a stand alone company|url=http://www.lantiq.com/news/press/121-infineon-completes-the-sale-of-wireline-business-lantiq-becomes-a-stand-alone-company/}}</ref>

* [http://www.lantiq.com/products/broadband-customer-premises-equipment/adsl/xwaytm-ar7/xwaytm-ar7/ www.lantiq.com - Corporate Lantiq AR7 product homepage]

[[AMAZON]] was effectively the AR8, and is referred to as such in one product brochure<ref>{{cite web|title=Infineon CPE brochure|url=http://www.infineon.com/dgdl/IFX_CPE_Brochure_final.pdf?folderId=db3a304312dc768d0112e132874e0280&fileId=db3a30431add1d95011ae886288656aeone}}</ref>.

=== Source code ===
The "GPL source code" as provided by the various vendors of TI AR7 (with linux) devices is incomplete, since TI apparently refuses to publish the source code to some of their core kernel modifications, such as LZMA (de)compression of the zImage.  The [http://gpl-violations.org gpl-violations.org] project is actively trying to resolve this issue.

If you go through the GPL releases for AR7 devices by different vendors, you can find all the sources for the AR7 board. Here's a list:
{|border=1
 | Network driver || In almost every vendor GPL release || 
 |-
 | DSL driver     || Netgear DG834(G) V1.0.5            || Hidden in patch-knl file 
 |-
 | Wifi driver    || Linksys WAG54G v2 1.00.19-UK       || src/router/ti_ap/AP-DK5.7.0.4.tar.gz 
 |-
 | USB driver     || Netgear DG834(G) V1.0.5            || Hidden in patch-knl file 
 |-
 | Unknown status || Actiontec GPL source code          || [http://opensource.actiontec.com/ http://opensource.actiontec.com/]
 |}

=== IRC ===

There is a specifically targeted #ar7 irc channel on Freenode where those devoted to hacking ar7 based architecture go to hang out.

=== Memory map ===

AR7 family deploys unusual memory map. The AR7 chip has a small memory banks on the chip : 4Kb PROM (@0xBFC00000) and 4Kb RAM (@0x80000000) and memory block for the DSP (@unknown). The rest of the external memory banks are selectable with CS0..4. The FLASH is located at 0x90000000 (CS0) and RAM is located at 0x94000000 (CS1). Linux should define a non-contiguous memory and install an IRQ trampolines at the MIPS interrupt vectors.

=== C62x DSP ===

TI TMS320C62x is a fixed-point Digital Signal Processor core. C62x is based on the VelociTI VLIW architecture developed by TI. C62x is a member of the [http://www.ti.com/c6000 TI C6000] family.

* [http://www.ece.utexas.edu/~bevans/courses/realtime/lectures/01_Architecture/texasInstruments.html Notes on Texas Instruments Processors]
* [http://c6x-tools.sourceforge.net/ Open Source TMS320C6x Development Tools]
* [http://open.neurostechnology.com/node/1020 Free DSP Compiler Available]

=== VLYNQ ===

TI's [[Wikipedia:VLYNQ|VLYNQ]] is a low power, low pin-count serial communication interface that enables the extension of an internal bus segment to one or more external physical devices. The external devices are mapped into local, physical address space and appears as if they are on the internal bus. The external device must have a VLYNQ interface. The VLYNQ module serializes bus transactions in one device, transfers the serialized data via a VLYNQ port, and de-serializes the transaction in the external device. The VLYNQ interface is described in the following TI documents:
* SPRU768 - OMAP5912 Multimedia processor VLYNQ Serial Communications Interface Reference Guide
* [http://focus.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=sprue36 SPRUE36] - TMS320DM644x DMSoC VLYNQ Port. User's guide.

=== Emulation ===

[[QEMU]] with additional patches supports emulation of [[#AR7|AR7]] and some of its
most important devices (serial ports, ethernet). It also includes a flash emulation
and can run firmware of typical AR7 based DSL routers.

== UR8 ==

UR8 is integrated DSL/VoIP chipset. It combines MIPS 4KEc, C62x DSP (for DSL functions) and C55x DSP (for VoIP). MIPS CPU and C62x DSP operates at 360MHz and the C55x DSP at 180MHz.

== Devices based on the Texas Instruments AR7 ==

* [http://www.acorp.ru/press-center/press/press-251/ Acorp Sprinter LAN422]
* [http://www.seattlewireless.net/index.cgi/ActiontecGT701 Actiontec GT701]
* Asus AAM6010EV : TNETD7300GDU, 2Mb FLASH, 8Mb SDRAM
* [http://www.wehavemorefun.de/fritzbox/ AVM Fritz!Box]
* Aztech [http://www.aztech.com/prod_adsl_dsl600e.html DSL-600E]: 2Mb FLASH, 8Mb SDRAM
* Aztech [http://www.aztech.com/prod_adsl_dsl600er.html DSL600ER]: 2Mb FLASH, 8Mb SDRAM, 88E6060 Switch
* Aztech [http://www.aztech.com/prod_adsl_dsl600ew.html DSL600EW]: 4Mb FLASH, 16Mb SDRAM, 88E6060 Switch, TNETW1130
* [[DSL-xxxT|D-Link DSL-xxxT]]
* [http://www.dlink.de/?go=jN7uAYLx/oIJaWVUDLYZU93ygJVYLelXSNvhLPG3yV3oVox7haltbNlwaaRp7jgrHT2onGQTo48EBtfkzKHiK0oRtevRboE= D-Link DVA-G3342SB] (DSL board only)
* ECI B-FOCuS combo 352+ , B-FOCuS Router 312+ (TNETD7300AGDW) 2Mb FLASH 8Mb SDRAM
* devolo [http://www.devolo.com/co_EN/produkte/adsl/dsl+1100duo.html dsl+ 1100 duo], [http://www.devolo.com/co_EN/produkte/adsl/dsl+1100lan.html dsl+ 1100 LAN]
* Efficient Networks, Inc / ENI SpeedStream 5100
* LevelOne [http://global.level1.com/products2.php?Id=534 FBR-1416A]: (TNETD7300GDU) 2Mb FLASH, 8Mb SDRAM, 88E6060 Switch
* Linksys [[ADSL2MUE]] 4MB Flash, 16MB ram, USB + 1 Ethernet only
* Linksys AG241
* Linksys WAG200Gv1
* Linksys WAG54Gv2 and v3
* Linksys WAG54GP2v2
* Linksys WAG354Gv1, v2, and v2.1
* Linksys WRTP54G
* Linksys HG200
* [http://www.seattlewireless.net/index.cgi/NetgearDG834G Netgear DG834(G)] (Version 1, 2, and 3 have AR7 Chipset, [http://en.wikipedia.org/wiki/DG834G version 4 has Broadcom chipset])
* Paradyne (Zhone) Hotwire 6210-A2, 6211-A2, and 6381-A2 (OEM Asus AAM6010EV)
* Siemens [http://bs.netgaroo.com/sx541/ SX541] uses realtime OS (SOHO.BIN) and BRN Boot Loader from the Broad Net Technology, Inc.
* Siemens [http://subscriber.communications.siemens.com/subscriber_networks/4100.shtml SpeedStream 4100/4200] 
* [http://www.trasduzione.com/WL-108/ Sitecom WL-108]
* Solwise [[SAR600E|ADSL-SAR-600E]]
* Sphairon Turbolink JDR454WB WLAN ADSL Modem (2548 937939)
* [http://ar7-firmware.berlios.de/ T-Com Sinus 154 DSL SE]
* [http://ar7-firmware.berlios.de/ T-Com Sinus 154 DSL Basic SE]
* [http://ar7-firmware.berlios.de/ T-Com Sinus 154 DSL Basic 3]
* T-Com Speedport W501V
* T-Com Speedport W701V
* [http://www.westell.com Westell] WireSpeed 2000 and ProLine 6100
* [[AR7/ZyXEL|ZyXEL (P-660HW DSL Speed-Modem)]] [http://www.zyxel.com/web/product_family_detail.php?PC1indexflag=20040812093058&CategoryGroupNo=AC5783AE-9475-41AD-BDA5-0997187F44AA], [http://wiki.openwrt.org/doku.php?id=oldwiki:openwrtdocs:hardware:zyxel:prestige_660hw_61 article] and [http://forum.openwrt.org/viewtopic.php?pid=186203#p186203 pics] at OpenWrt
* [http://http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase&sku=3CRWDR100B-72 3com Officeconnect 3crwdr100x series] 3com 3rcwdr100x series ADSL firewall router
... and many more.

== Mainline integration ==

Starting with 2.6.31-rc1, AR7 (which also supports UR8) has been merged into Linux-MIPS and has mainline support for the:

* VLYNQ bus
* CPMAC integrated Ethernet MACs

OpenWrt has source support for the ACX111 Wi-Fi (sta only) and DSL driver (sangam-atm) and maintains it to work with upstream kernels.

== References ==
{{reflist}}

== External links ==

* Actiontec GPL Source Code Download Center [http://opensource.actiontec.com/ Actiontec AR7 Devices] 
* D-Link GPL Source [ftp://ftp.dlink.co.uk/GPL ftp site]
* Netgear GPL Source [http://kbserver.netgear.com/kb_web_files/open_src.asp link]
* Texas Instrument [http://www.ti.com/ar7 AR7] ADSL Router SoC
* Texas Instrument [http://www.ti.com/ur8 UR8] Multimedia Gateway SoC
* QEMU based AR7 emulation, Linux based [http://developer.berlios.de/projects/ar7-firmware/ AR7 firmware]
* [http://www1.linksys.com/support/gpl.asp Linksys GPL Code Center], ADSL2MUE (Incomplete), WAG54G, WAG354, WAG200G GPL sourcecode
* OpenWrt [http://openwrt.org/AR7Port AR7 Port] [http://wiki.openwrt.org/CategoryAR7Device AR7 Devices] [http://wiki.openwrt.org/TableOfHardware?highlight=%28AR7%29 Table of all Hardware]
* Datasheet http://focus.ti.com/pdfs/bcg/ar7_nsp_prod_brief.pdf
* [http://www.linuxdevices.com/news/NS6391318656.html TNETV1061] a VoIP chip from TI, including 213MHz MIPS32 core and a TMS320C55x 150MHz DSP
* AR7 based routers [http://ar7.wikispaces.com/ AR7 Wiki Space]
* 3rd party firmware [http://www.routertech.org RouterTech]

[[Category:SOC]]