| commit | 1102407bb714dcebb43f385335bcb72f6b8843bc | [log] [tgz] |
|---|---|---|
| author | Suman Tripathi <stripathi@apm.com> | Mon Dec 29 08:52:47 2014 +0530 |
| committer | Tejun Heo <tj@kernel.org> | Mon Jan 05 09:02:56 2015 -0500 |
| tree | 660b1ace45df70996de19cfdb7d8abca31fd7c69 | |
| 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>