Thread (4 messages) 4 messages, 2 authors, 2015-01-05

Re: [PATCH v3 2/2] ahci_xgene: Fix the DMA state machine lockup for the ATA_CMD_PACKET PIO mode command.

From: Tejun Heo <tj@kernel.org>
Date: 2015-01-05 14:03:51
Also in: linux-arm-kernel, linux-devicetree, linux-scsi

On Mon, Dec 29, 2014 at 08:52:47AM +0530, Suman Tripathi wrote:
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 <redacted>
Ah, you already posted the updated versions.  Applied these instead.

Thanks.

-- 
tejun
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