git: sdhci - Add quirk for ADMA2 use to make O2 Micro OZ620 and OZ777 work.

Imre Vadasz ivadasz at crater.dragonflybsd.org
Thu May 14 08:52:33 PDT 2026


commit ecf19683a8e138e8b216e69e10e66a97e25eef8d
Author: Imre Vadász <imre at vdsz.com>
Date:   Sun Apr 15 12:28:35 2018 +0200

    sdhci - Add quirk for ADMA2 use to make O2 Micro OZ620 and OZ777 work.
    
    - This adds a quirk flag, for SDHC controllers that don't support ADMA2 for
      transfers with a length that is not a multiple of full 512 byte blocks.
    - On those controllers, we'll fall back to PIO when we get such a transfer
      request.

Summary of changes:
 share/man/man4/sdhci.4         | 6 +++++-
 sys/dev/disk/sdhci/sdhci.c     | 9 +++++++++
 sys/dev/disk/sdhci/sdhci.h     | 2 ++
 sys/dev/disk/sdhci/sdhci_pci.c | 6 ++++++
 4 files changed, 22 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ecf19683a8e138e8b216e69e10e66a97e25eef8d


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