diff options
| author | Suman Tripathi <stripathi@apm.com> | 2014-12-29 08:52:47 +0530 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2015-01-05 09:02:56 -0500 |
| commit | 1102407bb714dcebb43f385335bcb72f6b8843bc (patch) | |
| tree | 660b1ace45df70996de19cfdb7d8abca31fd7c69 /init | |
| parent | 5c0b8e0de76a86edb99e46612fd9d341b4c4fa0a (diff) | |
ahci_xgene: Fix the DMA state machine lockup for the ATA_CMD_PACKET PIO mode command.
This patch addresses the issue with ATA_CMD_PACKET pio mode
command for enumeration and device detection with ATAPI devices.
The X-Gene AHCI controller has an errata in which it cannot clear
the BSY bit after the PIO setup FIS. The dma state machine enters
CMFatalErrorUpdate state and locks up.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions