This patchset add a new ata port flag ATA_FLAG_NO_LOG_PAGE to be able
to blacklist ports/controller which e.g. locks up on a log page read.
This flag is added to the sata_fsl driver which is the first affected
one.
The lockup was detected on Freescale P1013/P1022, T4240 using a ATP
mSATA.
The device failed during initialisation if the SATA device includes the
devslp feature.
With this patchset, we blacklist the fsl sata controller and return
a error on any attempt to read a log page. This allows us to access
the mSATA.
Changes in v2:
fixed the build issue detected by the kbuild test robot
Andreas Werner (2):
libata-eh.c: Introduce new ata port flag for controller which lockup
on read log page
ata/sata_fsl.c: add ATA_FLAG_NO_LOG_PAGE to blacklist the controller
for log page reads
drivers/ata/libata-eh.c | 9 +++++++++
drivers/ata/sata_fsl.c | 3 ++-
include/linux/libata.h | 1 +
3 files changed, 12 insertions(+), 1 deletion(-)
--
2.6.2
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