Commit Graph

4 Commits

Author SHA1 Message Date
Bryan Wu
1c4bdc01b8 USB: musb: workaround Blackfin FIFO anomalies
Some of these workarounds are already in place, but labeled as affecting
all BF52x parts.  Since we have official anomaly numbers now, use those
defines.  And since writing to the FIFO has a similar hang issue as reading
from the FIFO, implement the workaround there too when necessary.

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-23 11:34:19 -08:00
Sonic Zhang
0702794c41 USB: musb: error out when anomaly 05000380 is applicable
Since we can't work around anomaly 05000380, throw a build error up and
instruct the user to use a different mode.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00
Sonic Zhang
daf5822f05 USB: musb: add notes for Blackfin anomalies
Add some helpful notes about how the driver works around different
anomalies that exist in the on-chip host controller.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-12-11 11:55:24 -08:00
Bryan Wu
0c6a881844 USB: musb: add Blackfin driver to MUSB framework (v2)
- replace MUSB_FIFOSIZE register to MUSB_TXCOUNT, cause no MUSB_FIFOSIZE
   register on Blackfin
- use #ifdef to replace #if defined()

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 10:00:07 -08:00