Commit Graph

110 Commits

Author SHA1 Message Date
Warner Losh
40fab6e7c7 Propigate read-only status of cards. Right now it is read only at
device attach time.  We may need to read this more often in the
future, but for now simplicity of implementation wins.

Submitted by:	mav@
2008-09-28 22:40:11 +00:00
Warner Losh
8aaa15e202 The OCR register defines both acceptable voltage bits, as well as bits
for other things.  Mask out the voltage only bits when returning the
Vdd mask for voltage computation.

Submitted by:	mav@
2008-09-28 22:27:29 +00:00
Warner Losh
2703cdbb1b Other busses on the system use the official capitalization for the
technology.  Make mmc conform to that.

Submitted by:	mav@
2008-09-28 22:23:06 +00:00
Warner Losh
752fe3b39e Fix line continuation whitespace.
Submitted by:	mav@
2008-09-28 22:21:53 +00:00
Julian Elischer
3745c395ec Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
Warner Losh
6634080bee MFp4: When querying the operating condition of SD cards (using the
application specific SEND_OP_COND (CMD55 + ACMD41), go ahead and allow
100 tries.  This gives a timeout of a second rather than the ~100ms
the old style produces.

I've had one old 16MB SD card which needs the extra time.  I've now
had reports from the field that other cards need this too.

Originally done at BSDcan 2007 while waiting to give my embedding
madness minitalk.
2007-06-05 17:04:44 +00:00
Warner Losh
14eced725c A careful reading of the disclaimer that is required to download the
SD Simplified specification, as well as other SD and SDIO
implemenations I've examined, suggest this disclaimer may be required.
It is unclear to me exactly what the license would be for, or why it
might be required.  Err on the side of caution and include this
disclaimer so anybody deploying this code can judge for themselves.  I
have no further unformation about the details.
2007-05-26 05:23:36 +00:00
Warner Losh
0e1466ac89 First cut at making detach work. also add sdh as a possible mmc bridge.
Submitted by: Andrea Bittau
(Andrea may have updated patches, but I've tested these)
2007-05-15 05:49:14 +00:00
Warner Losh
78f8edfb44 Don't need mmc_mode ivar 2007-05-15 05:46:58 +00:00
Warner Losh
114b4164dd Preliminary MMC stack. This stack supports SD 1.0 cards only, but
should be easily adapted to SD 2.0 (aka SDHC), SDIO, MMC and MMCplus
cards.  At the present time, there's only one bridge driver for the
ARM9 based Atmel AT91RM9200.
2006-10-20 06:39:59 +00:00