Date: Mon, 27 Oct 2008 17:48:55 -0400 From: "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com> To: Alexander Motin <mav@FreeBSD.org> Cc: freebsd-arm@FreeBSD.org, freebsd-current@freebsd.org, freebsd-mobile@FreeBSD.org Subject: Re: RFC: PCI SD host controller driver & mmc/mmcsd modules improvements Message-ID: <1225144135.1052.18.camel@RabbitsDen> In-Reply-To: <48F11087.20403@FreeBSD.org> References: <48DEA8E7.2080503@FreeBSD.org> <48F11087.20403@FreeBSD.org>
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On Sat, 2008-10-11 at 23:45 +0300, Alexander Motin wrote: > Alexander Motin wrote: > > I would like to present initial revision of my generic PCI SD Host > > Controller driver (sdhci). It support PCI devices with class 8 and > > subclass 5 according to SD Host Controller Specification. > > > > Latest patches against 8-CURRENT (mostly fit 7-STABLE) may be found at: > > http://people.freebsd.org/~mav/sdhci/ > > For those who are not tracking actively, I would like to report that > most of original driver's child illnesses are now healed. > > Driver now supports both PIO and DMA modes. Because of some special > tunings DMA works fine even on almost broken ENE chips. I am reaching > 15MB/s transfer (maximum for my controller's bus) with only about 1% of > CPU load. Implemented 4 bits bus width and high speed timing modes > support for high data rates up to 52MHz. Cards hot insertion/removing is > now working. Together with in-tree mmc/mmcsd drivers improvements most > of card types (SD, SDHC, standard and high capacity MMC) are now supported. > This works well on my ThinkPad X60 (1709-73U) with RELENG_7 circa October 23rd (s/kproc/kthread/, thanks to Oleksandr Tymoshenko): sdhci0: <RICOH R5C822 SD> mem 0xe4301800-0xe43018ff irq 18 at device 0.2 on pci21 sdhci0: 1 slot(s) allocated sdhci0: [ITHREAD] Tested with 1GB, 2GB and 4GB (SDHC) cards. The side note: write-lock switch on the card was also correctly detected and reported. Thank you very much for your work! -- Alexandre "Sunny" Kovalenko (Олександр Коваленко)
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