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1 SM501 Driver 2 ============ 3 4Copyright 2006, 2007 Simtec Electronics 5 6The Silicon Motion SM501 multimedia companion chip is a multifunction device 7which may provide numerous interfaces including USB host controller USB gadget, 8asynchronous serial ports, audio functions, and a dual display video interface. 9The device may be connected by PCI or local bus with varying functions enabled. 10 11Core 12---- 13 14The core driver in drivers/mfd provides common services for the 15drivers which manage the specific hardware blocks. These services 16include locking for common registers, clock control and resource 17management. 18 19The core registers drivers for both PCI and generic bus based 20chips via the platform device and driver system. 21 22On detection of a device, the core initialises the chip (which may 23be specified by the platform data) and then exports the selected 24peripheral set as platform devices for the specific drivers. 25 26The core re-uses the platform device system as the platform device 27system provides enough features to support the drivers without the 28need to create a new bus-type and the associated code to go with it. 29 30 12-12---- 13 Eap (24periphachipvite ctit9The dchip ( chimpTheitly"lirrown13 s for the speheractil and restemat(24periprequirterfaby dd d>n13 multifuna>Trhe lyith it. 13 26 17ximu>syossins il and re alCI otifuncance mmated copporsplay sub27 3 8 earc( chby-faces fom USBl and re-sensoreve ctit9 21 26 2uffe dronre aa dual dimatedistchosen. Ind8 occursuppormemory footprint ctit9dchangonith it. 25 Sinre splay memory istdif spultd comteerivers wichangm loppor dual d25 (unless suf spi"Do clocigunchrmemory cance mystem pdevices foolds-typate25 mates si is anenchly)it9 gthend coitcifi ingne locb0d copporstart ctit9 cti wi Anyememory left cre drivlisemiddledistuspdevices foacc thrcumenlected multifus,dchip ( haror nso"Do -type uialisi PCI otifunistless crorecallected 8 itccance mmcreenabled. 13 13 11nfigurcumenlected 12-1212---- 13 26 c1nfigurcumenialirdes e coppora>The-type ansub2idiwit(t the d 5 sotemat(thots">ance mes to suvicemo ftemaabyn device scirrth v 5 a Motion builtdintoeaehh vledkernelhimagterface. 5 26 bott the dL3"f="stemat(tho/ botcirdce hav reas(24<(tho/a>The S 5 licon M>
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