On Thursday 22 January 2009, Dmitry Gryazin wrote: > On Friday 16 January 2009 03:35:44 pm Sergei Shtylyov wrote: > > Hello. > > > > Dmitry Gryazin wrote: > > >>>> True. However it should be possible to handle it correctly by adding > > >>>> the > > >>>> DMA quirk to the respective host drivers (seems to be via82cxxx.c in > > >>>> case of > > >>>> IEI PCISA-C3/EDEN). > > >>> > > >>> Yeah, this seems a viable approach... > > >>> > > >>>> Kirill, could you please look into adding such quirk to via82cxxx > > >>>> instead? > > >>>> > > >>>> [ It seems the best place to add it would be via_init_one() as we > > >>>> could just > > >>> > > >>> No, not really -- the issue is not at all as simple as this patch > > >>> tried to present it. Looking at its "Quick Startup Reference" > > >>> (http://f.ipc2u.ru/files/add/doc/496/M_PCISA-C800EV_ENG.pdf), the EPIC > > >>> board has *two* normal IDE connectors in addition to the CF slot > > >>> (connected to the secondary port -- and it seems possible that a hard > > >>> drive can be connected to the same port as CF), so the right place > > >>> seems to rather be in [mu]dma_filter() methods -- and the decision > > >>> should be strictly based on the drive type indicating CF, i.e. by > > >>> calling ata_id_is_cfa(). > > I have tried my old Trancend 64Mb, RamStar 521Mb and NCP 64Mb cards. My old > cards returned right id[ATA_ID_CONFIG] = 0x848A. > > But I have to use Kingston CF Card 1Gb 2008. > ata_id_is_cfa() returns 0 for it and > id[ATA_ID_MAJOR_VER] = 0 > id[ATA_ID_CONFIG] = 0x044A > > I have only CF+ specification revision 2.0, but I've found in wiki: > (http://en.wikipedia.org/wiki/CompactFlash#CF.2B_specification_revisions) > "... While the current revision 4.1 from 2004 works only in ATA mode, ..." > > So I have reached an impasse. How to identify modern CF cards? Sorry that I missed it before but if indeed normal IDE devices/connectors can be used with IDE2 then I see no sane/reliable way to detect CF devices using buggy on-board slot... unless this slot is hardwired to be master (or slave)? Thanks, Bart -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
