CVS commit: [netbsd-6] src/sys/dev/sdmmc

["Julian Coleman" <jdc%netbsd.org@localhost>]

Module Name:    src
Committed By:   jdc
Date:           Wed Aug  8 06:19:00 UTC 2012

Modified Files:
        src/sys/dev/sdmmc [netbsd-6]: sdhc.c sdhcreg.h sdmmc_mem.c sdmmcreg.h

Log Message:
Pull up revisions:
  src/sys/dev/sdmmc/sdhc.c revisions 1.16,1.20,1.21,1.22,1.23 via patch,1.25
  src/sys/dev/sdmmc/sdhcreg.h revision 1.8
  src/sys/dev/sdmmc/sdmmc_mem.c revisions 1.21,1.22
  src/sys/dev/sdmmc/sdmmcreg.h revisions 1.10,1.11,1.12
(requested by matt in ticket 441).

SDHCI byte swaps the BE response on the wire into LE registers.
As we always want response data in LE, use bus_space_read_stream.
Additonally, read response data in 1 or 4 4-byte chunks, instead of
one 4-byte chunk or 15 1-byte chunks.

bus_space_*_stream_N() functions are not universally available.
Provite alternate implementation for when they are unavailable.

Handle interrupt acknowledgement in the SDHC_FLAG_32BIT_ACCESS case in
the same way as non-SDHC_FLAG_32BIT_ACCESS case.

If there was an error in 32-bit mode, just set ERROR_INTERRUPT otherwise
see if matched anything we care about.

Add use of watermark register when PIO to an ESDHC.  After every kill or
drain of watermask words, pause a bit to give time for the fifo to recover.
Always the command response in BE byteorder.  Rewrite __bitfield to deal
with this.

Responses are actually in host order (except SCR which is return in
big endian so that's convert to host order).

Fix comments about __bitfield.


To generate a diff of this commit:
cvs rdiff -u -r1.10.2.1 -r1.10.2.2 src/sys/dev/sdmmc/sdhc.c
cvs rdiff -u -r1.5 -r1.5.2.1 src/sys/dev/sdmmc/sdhcreg.h
cvs rdiff -u -r1.20 -r1.20.2.1 src/sys/dev/sdmmc/sdmmc_mem.c
cvs rdiff -u -r1.8 -r1.8.2.1 src/sys/dev/sdmmc/sdmmcreg.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.