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* Implement 64-bit DMA support in sdhc(4).patrick2018-09-061-2/+11
| | | | | tested in snaps ok kettenis@
* Make it possible for the sdhc(4) attachment glue to specify the base clockkettenis2018-03-191-1/+3
| | | | | | frequency. ok patrick@, visa@
* Add some missing interrupt bits, and enable the ADMA error interrupt.kettenis2016-04-301-4/+6
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* Implement DMA support. Bits and pieces taken from NetBSD, but we onlykettenis2016-04-301-3/+54
| | | | | | | | | | | | support ADMA2. The older SDMA mode has too many limitations to be really usable. Gives us only moderate speed improvements, bus reduces the CPU load considerably. We will reap the full benefits once we implement wider bus widths and high speed modes. There is a remining issue with simultanious use of eMMC and external SD card on (some) Intel Bay Trail hardware. Still under investigation. ok patrick@, stsp@, deraadt@
* Add (limited) support for controllers that implement version 3.0 of thekettenis2016-01-111-1/+17
| | | | | | | SD host controller standard. Support the larger base clock and larger clock divisors. ok jsg@
* more.fgsch2006-07-301-4/+6
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* add some more definitions.fgsch2006-07-301-1/+15
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* correct base freq mask per spec. sdhc found in the nx6125 now configuresfgsch2006-07-171-2/+2
| | | | correctly. uwe@ ok.
* Support for standard SD host controllers like the Ricoh 5C822, a smalluwe2006-05-281-0/+173
generic bus layer, and SCSI emulation for SD/MMC memory cards.