freebsd-nq/sys/dev/sdhci
Ian Lepore 61bc42f782 Add a new sdhci quirk, SDHCI_QUIRK_WAITFOR_RESET_ASSERTED, to work around
TI OMAP controllers which will return the reset-in-progress bit as zero if
you read the status register too fast after setting the reset bit.

The zero is apparently from a stale snapshot of the internal state presented
in the interface register, and leads to a false indication that the reset
is complete when it either hasn't started yet or is in-progress.  The
workaround is to first loop until the bit is seen as asserted, then do the
normal loop waiting to see it de-asserted.

Submitted by:	Michal Meloun <meloun@miracle.cz>
2014-12-20 01:13:13 +00:00
..
sdhci_fdt.c - Nuke unused sdhci_softc. 2014-08-31 17:56:54 +00:00
sdhci_if.m - Nuke unused sdhci_softc. 2014-08-31 17:56:54 +00:00
sdhci_pci.c class, subclass and progif were never used, so don't bother setting 2014-10-13 16:23:51 +00:00
sdhci.c Add a new sdhci quirk, SDHCI_QUIRK_WAITFOR_RESET_ASSERTED, to work around 2014-12-20 01:13:13 +00:00
sdhci.h Add a new sdhci quirk, SDHCI_QUIRK_WAITFOR_RESET_ASSERTED, to work around 2014-12-20 01:13:13 +00:00